/* ==========================================================================
   BASKARA RIAU TEKNIK (BRT) - HIGH-FIDELITY DESIGN SYSTEM
   Medium Voltage (20 kV) & Low Voltage Industrial Electrical Contractor
   ========================================================================== */

:root {
  /* Core Palette */
  --navy: #12223B;
  --navy-2: #1C3152;
  --navy-dark: #0E1A2E;
  --cream: #F6F4EE;
  --cream-2: #ECE8DE;
  --white: #FFFFFF;
  --yellow: #F2B10A;
  --yellow-hover: #F7BC22;
  --red: #B3202A;
  --border-cream: #DDD7CA;
  
  /* Text Contrast Tokens (WCAG 2.1 AA Compliant >= 4.5:1) */
  --text-dark: #12223B;
  --text-body: #46505E;
  --text-muted: #5A626E;
  --text-on-dark: #C9D3E0;
  --muted-on-dark: #9FB0C6;

  /* Typography */
  --font-heading: 'Oswald', 'PingFang SC', 'Microsoft YaHei', 'SimHei', 'Arial Narrow', sans-serif;
  --font-body: 'Public Sans', 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Layout & Geometry */
  --container-max: 1440px;
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-pill: 28px;
  --header-height: 50px;

  /* Dynamic Theme Variables - Default Dark Industrial */
  --theme-bg-main: #12223B;
  --theme-bg-alt: #0E1A2E;
  --theme-bg-card: #1C3152;
  --theme-border: #284268;
  --theme-border-card: #284268;
  --theme-text-title: #F6F4EE;
  --theme-text-body: #C9D3E0;
  --theme-text-muted: #9FB0C6;
  --theme-header-bg: rgba(18, 34, 59, 0.95);
  --theme-drawer-bg: #0E1A2E;
  --theme-drawer-text: #F6F4EE;
  --theme-drawer-link: #F6F4EE;
  --theme-drawer-border: #284268;
}

/* LIGHT THEME (WCAG AA Compliant: text 5.6:1 on #F6F4EE) */
html[data-theme="light"] {
  --theme-bg-main: #F6F4EE;
  --theme-bg-alt: #ECE8DE;
  --theme-bg-card: #FFFFFF;
  --theme-border: #DDD7CA;
  --theme-border-card: #DDD7CA;
  --theme-text-title: #12223B;
  --theme-text-body: #46505E;
  --theme-text-muted: #5A626E;
  --theme-header-bg: rgba(246, 244, 238, 0.96);
  --theme-drawer-bg: #F6F4EE;
  --theme-drawer-text: #12223B;
  --theme-drawer-link: #12223B;
  --theme-drawer-border: #DDD7CA;
}

/* DARK THEME (WCAG AAA Compliant: text 10.2:1 on #0E1A2E) */
html[data-theme="dark"] {
  --theme-bg-main: #0E1A2E;
  --theme-bg-alt: #12223B;
  --theme-bg-card: #1C3152;
  --theme-border: #284268;
  --theme-border-card: #284268;
  --theme-text-title: #F6F4EE;
  --theme-text-body: #C9D3E0;
  --theme-text-muted: #9FB0C6;
  --theme-header-bg: rgba(14, 26, 46, 0.96);
  --theme-drawer-bg: #0E1A2E;
  --theme-drawer-text: #F6F4EE;
  --theme-drawer-link: #F6F4EE;
  --theme-drawer-border: #284268;
}

/* Base Body Resets */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body.brt-body {
  margin: 0;
  padding: 0;
  background-color: var(--navy);
  color: var(--text-body);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ==========================================================================
   WCAG 2.1 AA: SKIP TO CONTENT & VISIBLE FOCUS INDICATORS (SC 2.4.1 & 2.4.7)
   ========================================================================== */
.brt-skip-link {
  position: absolute;
  top: -120px;
  left: 20px;
  background-color: var(--yellow);
  color: var(--navy);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.05em;
  padding: 12px 24px;
  border-radius: 8px;
  text-decoration: none;
  z-index: 10000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  transition: top 0.2s ease-in-out;
}

.brt-skip-link:focus {
  top: 20px;
  outline: 3px solid var(--cream);
  outline-offset: 3px;
}

/* High-Contrast Visible Focus for Keyboard Navigation */
:focus-visible {
  outline: 3px solid var(--yellow) !important;
  outline-offset: 3px !important;
}

[data-theme="light"] :focus-visible {
  outline: 3px solid var(--navy) !important;
  outline-offset: 3px !important;
}

.brt-btn:focus-visible,
.brt-lang-btn:focus-visible,
.brt-theme-btn:focus-visible,
.brt-hamburger:focus-visible,
.brt-mobile-drawer__close:focus-visible,
.brt-filter-pill:focus-visible {
  outline: 3px solid var(--yellow) !important;
  outline-offset: 3px !important;
}

[data-theme="light"] .brt-btn:focus-visible,
[data-theme="light"] .brt-lang-btn:focus-visible,
[data-theme="light"] .brt-theme-btn:focus-visible,
[data-theme="light"] .brt-hamburger:focus-visible {
  outline: 3px solid var(--navy) !important;
  outline-offset: 3px !important;
}

/* ==========================================================================
   HEADER / NAVBAR (High-Contrast Dual-Theme Architecture with WCAG AAA Standards)
   ========================================================================== */
:root,
html[data-theme="dark"] {
  --header-bg-gradient: linear-gradient(180deg, rgba(8, 14, 26, 0.95) 0%, rgba(8, 14, 26, 0.82) 60%, rgba(8, 14, 26, 0) 100%);
  --header-bg-solid: rgba(8, 14, 26, 0.96);
  --header-border: 1px solid rgba(242, 177, 10, 0.2);
  --header-shadow: 0 10px 32px rgba(0, 0, 0, 0.5);
  --header-title-color: #FFFFFF;
  --header-sub-color: #F2B10A;
  --header-link-color: #E2E8F0;
  --header-link-hover: #FFFFFF;
  --header-link-active: #F2B10A;
  --header-lang-bg: rgba(14, 26, 46, 0.9);
  --header-lang-border: 1px solid rgba(242, 177, 10, 0.25);
  --header-lang-inactive: #CBD5E1;
  --header-lang-active-bg: #F2B10A;
  --header-lang-active-color: #080E1A;
  --header-theme-bg: rgba(14, 26, 46, 0.9);
  --header-theme-border: 1px solid rgba(242, 177, 10, 0.25);
  --header-theme-color: #F2B10A;
  --header-quote-bg: linear-gradient(135deg, #F2B10A 0%, #D97706 100%);
  --header-quote-color: #080E1A;
  --header-quote-border: 1.5px solid #F2B10A;
  --header-quote-shadow: 0 4px 14px rgba(242, 177, 10, 0.3);
  --header-burger-border: 1px solid rgba(246, 244, 238, 0.25);
  --header-burger-bar: #FFFFFF;
}

html[data-theme="light"] {
  --header-bg-gradient: rgba(255, 255, 255, 0.95);
  --header-bg-solid: rgba(255, 255, 255, 0.98);
  --header-border: 1px solid rgba(203, 213, 225, 0.9);
  --header-shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
  --header-title-color: #0F172A;
  --header-sub-color: #B45309;
  --header-link-color: #1E293B;
  --header-link-hover: #0F172A;
  --header-link-active: #B45309;
  --header-lang-bg: #F1F5F9;
  --header-lang-border: 1px solid #CBD5E1;
  --header-lang-inactive: #334155;
  --header-lang-active-bg: #B45309;
  --header-lang-active-color: #FFFFFF;
  --header-theme-bg: #F1F5F9;
  --header-theme-border: 1px solid #CBD5E1;
  --header-theme-color: #0F172A;
  --header-quote-bg: #0F172A;
  --header-quote-color: #FFFFFF;
  --header-quote-border: 1.5px solid #0F172A;
  --header-quote-shadow: 0 4px 14px rgba(15, 23, 42, 0.16);
  --header-burger-border: 1px solid #CBD5E1;
  --header-burger-bar: #0F172A;
}

.brt-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 !important;
  background: var(--header-bg-gradient);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.brt-header.is-scrolled,
.brt-header--subpage {
  position: fixed !important;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--header-bg-solid) !important;
  border-bottom: var(--header-border) !important;
  box-shadow: var(--header-shadow) !important;
  padding: 0 !important;
}

.brt-header__inner {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

/* Brand Link & Logo Box */
.brt-header__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

/* Official Logo in Cream Box (#F6F4EE, radius 8px) */
.brt-header__logo-box {
  background-color: #F6F4EE;
  border-radius: 8px;
  padding: 4px 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

html[data-theme="light"] .brt-header__logo-box {
  background-color: #FFFFFF;
  border: 1px solid #E2E8F0;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.06);
}

.brt-header__brand:hover .brt-header__logo-box {
  transform: scale(1.02);
}

.brt-header__logo {
  display: block;
  width: auto;
  height: 28px;
  object-fit: contain;
}

.brt-header__brand-info {
  display: flex;
  flex-direction: column;
}

.brt-header__brand-title {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--header-title-color) !important;
  line-height: 1.15;
  white-space: nowrap;
  transition: color 0.25s ease;
}

.brt-header__brand-sub {
  font-family: var(--font-body);
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--header-sub-color) !important;
  text-transform: uppercase;
  line-height: 1.2;
  margin-top: 1px;
  transition: color 0.25s ease;
}

/* Header Navigation Menu */
.brt-header__nav {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.4vw, 22px);
}

.brt-header__nav-link {
  font-family: var(--font-body);
  font-size: clamp(13px, 0.9vw, 14.5px);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--header-link-color) !important;
  text-decoration: none;
  transition: color 0.2s ease;
  position: relative;
  padding: 8px 4px;
  white-space: nowrap;
}

.brt-header__nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2.5px;
  border-radius: 2px;
  background-color: var(--header-link-active) !important;
  transition: width 0.25s ease;
}

.brt-header__nav-link:hover {
  color: var(--header-link-hover) !important;
}

.brt-header__nav-link:hover::after {
  width: 100%;
}

.brt-header__nav-link.active {
  color: var(--header-link-active) !important;
  font-weight: 700;
}

.brt-header__nav-link.active::after {
  width: 100%;
}

/* Actions: Language & Button */
.brt-header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brt-lang-switcher {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  background: var(--header-lang-bg) !important;
  border: var(--header-lang-border) !important;
  border-radius: var(--radius-pill);
  padding: 3px;
  transition: background 0.25s ease, border-color 0.25s ease;
}

.brt-lang-btn {
  font-family: var(--font-heading);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  min-height: 32px;
  min-width: 34px;
  padding: 4px 11px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  color: var(--header-lang-inactive) !important;
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.brt-lang-btn:hover {
  color: var(--header-link-hover) !important;
}

.brt-lang-btn.active {
  background: var(--header-lang-active-bg) !important;
  color: var(--header-lang-active-color) !important;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.brt-btn--header-quote {
  background: var(--header-quote-bg) !important;
  color: var(--header-quote-color) !important;
  border: var(--header-quote-border) !important;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 18px;
  min-height: 38px;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.25s ease;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--header-quote-shadow) !important;
}

.brt-btn--header-quote:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

html[data-theme="light"] .brt-btn--header-quote:hover {
  background: #B45309 !important;
  border-color: #B45309 !important;
  color: #FFFFFF !important;
}

/* Header Theme Toggle & Hamburger Controls */
.brt-header__mobile-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brt-theme-btn {
  background: var(--header-theme-bg) !important;
  border: var(--header-theme-border) !important;
  color: var(--header-theme-color) !important;
  border-radius: 50%;
  width: 38px;
  height: 38px;
  min-width: 38px;
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 17px;
  padding: 0;
  transition: all 0.2s ease;
}

.brt-theme-btn:hover {
  transform: scale(1.06);
}

html[data-theme="light"] .brt-theme-btn:hover {
  background: #E2E8F0 !important;
  border-color: #94A3B8 !important;
}

[data-theme="light"] .brt-theme-btn .brt-theme-icon--sun {
  display: none;
}
[data-theme="light"] .brt-theme-btn .brt-theme-icon--moon {
  display: inline-block;
}

[data-theme="dark"] .brt-theme-btn .brt-theme-icon--moon {
  display: none;
}
[data-theme="dark"] .brt-theme-btn .brt-theme-icon--sun {
  display: inline-block;
}

/* Hamburger Menu Toggle Button (Min 40x40px Touch Target) */
.brt-hamburger {
  display: none;
  background: var(--header-theme-bg) !important;
  border: var(--header-burger-border) !important;
  border-radius: 8px;
  width: 40px;
  height: 40px;
  min-width: 40px;
  min-height: 40px;
  cursor: pointer;
  padding: 9px 8px;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
  transition: all 0.2s ease;
  z-index: 101;
}

.brt-hamburger__bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--header-burger-bar) !important;
  border-radius: 2px;
  transition: all 0.25s ease;
}

.brt-hamburger:hover {
  border-color: var(--header-sub-color) !important;
}

.brt-hamburger.is-active .brt-hamburger__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  background-color: var(--header-sub-color) !important;
}

.brt-hamburger.is-active .brt-hamburger__bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.brt-hamburger.is-active .brt-hamburger__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  background-color: var(--header-sub-color) !important;
}

@media (max-width: 1279px) {
  .brt-hamburger {
    display: flex;
  }
}

/* ==========================================================================
   MOBILE NAVIGATION DRAWER (Slide-in, High Contrast, 44px Touch Targets)
   ========================================================================== */
.brt-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(10, 20, 36, 0.8);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.brt-drawer-backdrop.is-active {
  opacity: 1;
  pointer-events: auto;
}

.brt-mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(340px, 86vw);
  background-color: var(--theme-drawer-bg);
  color: var(--theme-drawer-text);
  border-left: 1px solid var(--theme-drawer-border);
  z-index: 999;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  visibility: hidden;
  pointer-events: none;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.35s ease;
  box-shadow: -8px 0 32px rgba(0, 0, 0, 0.4);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.brt-mobile-drawer.is-active {
  transform: translateX(0);
  visibility: visible;
  pointer-events: auto;
}

.brt-mobile-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border-bottom: 1px solid var(--theme-drawer-border);
}

.brt-mobile-drawer__close {
  background: transparent;
  border: 1px solid var(--theme-drawer-border);
  color: var(--theme-drawer-text);
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: 10px;
  transition: all 0.2s ease;
}

.brt-mobile-drawer__close:hover {
  background: rgba(242, 177, 10, 0.2);
  color: var(--yellow);
  border-color: var(--yellow);
}

.brt-mobile-drawer__nav {
  display: flex;
  flex-direction: column;
  padding: 16px 12px;
  flex: 1;
  gap: 4px;
}

.brt-mobile-drawer__link {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 48px;
  padding: 12px 16px;
  border-radius: 10px;
  color: var(--theme-drawer-link);
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: all 0.2s ease;
}

.brt-mobile-drawer__link:hover,
.brt-mobile-drawer__link.active {
  background: rgba(242, 177, 10, 0.18);
  color: var(--yellow);
  font-weight: 700;
  padding-left: 20px;
}

[data-theme="light"] .brt-mobile-drawer {
  background-color: #FFFFFF !important;
  color: #0F172A !important;
  border-left: 1px solid #E2E8F0 !important;
  box-shadow: -8px 0 32px rgba(15, 23, 42, 0.12) !important;
}

[data-theme="light"] .brt-mobile-drawer__header {
  border-bottom: 1px solid #E2E8F0 !important;
}

[data-theme="light"] .brt-mobile-drawer__close {
  background: #F1F5F9 !important;
  border-color: #CBD5E1 !important;
  color: #0F172A !important;
}

[data-theme="light"] .brt-mobile-drawer__link {
  color: #1E293B !important;
}

[data-theme="light"] .brt-mobile-drawer__link:hover,
[data-theme="light"] .brt-mobile-drawer__link.active {
  background: #FEF3C7 !important;
  color: #B45309 !important;
  border-left: 4px solid #B45309 !important;
  font-weight: 700 !important;
}

[data-theme="light"] .brt-mobile-drawer__footer {
  border-top: 1px solid #E2E8F0 !important;
  background: #F8FAFC !important;
}

[data-theme="light"] .brt-mobile-drawer__ctrl-label {
  color: #64748B !important;
}

.brt-mobile-nav-icon {
  font-size: 18px;
  flex-shrink: 0;
}

.brt-mobile-drawer__footer {
  padding: 20px;
  border-top: 1px solid var(--theme-drawer-border);
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: rgba(0, 0, 0, 0.08);
}

.brt-mobile-drawer__controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brt-mobile-drawer__ctrl-label {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}

.brt-theme-drawer-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 18px;
  border-radius: 22px;
  border: 1px solid var(--theme-drawer-border);
  background: transparent;
  color: var(--theme-drawer-text);
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.brt-theme-drawer-btn:hover {
  background: rgba(242, 177, 10, 0.2);
  border-color: var(--yellow);
}

[data-theme="light"] .brt-theme-drawer-btn .brt-theme-text-light {
  display: none;
}
[data-theme="light"] .brt-theme-drawer-btn .brt-theme-text-dark {
  display: inline;
}
[data-theme="dark"] .brt-theme-drawer-btn .brt-theme-text-light {
  display: inline;
}
[data-theme="dark"] .brt-theme-drawer-btn .brt-theme-text-dark {
  display: none;
}

.brt-mobile-drawer__actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ==========================================================================
   SECTION 1: HERO CONTAINER (Navy #12223B + Right Photo + Vertical Yellow Line)
   ========================================================================== */
.brt-hero {
  position: relative;
  width: 100%;
  min-height: 100vh;
  min-height: 100svh;
  background-color: var(--navy);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 0;
}

@media (min-width: 992px) {
  .brt-hero {
    height: calc(100vh - 50px);
    height: calc(100dvh - 50px);
    min-height: calc(100vh - 50px);
    max-height: calc(100vh - 50px);
    padding-top: 0 !important;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
  }
}

/* Full-bleed Project Photo Layer on Right */
.brt-hero__bg-wrap {
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 1;
}

.brt-hero__picture {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.6s ease;
}

/* Dark Mode Picture (Default Active) */
.brt-hero__picture--dark {
  opacity: 1;
  visibility: visible;
  z-index: 1;
}

/* Light Mode Picture (Hidden by Default in Dark Mode) */
.brt-hero__picture--light {
  opacity: 0;
  visibility: hidden;
  z-index: 1;
}

/* Toggle Picture on Theme Change */
html[data-theme="light"] .brt-hero__picture--dark,
html[data-bs-theme="light"] .brt-hero__picture--dark {
  opacity: 0;
  visibility: hidden;
}

html[data-theme="light"] .brt-hero__picture--light,
html[data-bs-theme="light"] .brt-hero__picture--light {
  opacity: 1;
  visibility: visible;
}

.brt-hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right center;
  transform-origin: 75% 50%;
  animation: brtKenBurns 22s ease-in-out infinite alternate;
  will-change: transform;
}

@keyframes brtKenBurns {
  0% { transform: scale(1); }
  100% { transform: scale(1.05); }
}

/* Overlay Layer: Seamless feathered gradient from Navy to transparent */
.brt-hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  background: linear-gradient(
    90deg,
    #12223B 0%,
    #12223B 44%,
    rgba(18, 34, 59, 0.95) 52%,
    rgba(18, 34, 59, 0.78) 62%,
    rgba(18, 34, 59, 0.45) 75%,
    rgba(18, 34, 59, 0.18) 88%,
    rgba(18, 34, 59, 0.02) 100%
  );
  pointer-events: none;
  transition: background 0.5s ease-in-out;
}

/* Light Mode Overlay (Cream/Slate Gradient matching Daylight Substation Photo) */
html[data-theme="light"] .brt-hero__overlay,
html[data-bs-theme="light"] .brt-hero__overlay {
  background: linear-gradient(
    90deg,
    #F8FAFC 0%,
    #F8FAFC 44%,
    rgba(248, 250, 252, 0.96) 52%,
    rgba(248, 250, 252, 0.82) 64%,
    rgba(248, 250, 252, 0.48) 78%,
    rgba(248, 250, 252, 0.18) 90%,
    rgba(248, 250, 252, 0.02) 100%
  );
}

/* Soft, Subtle & Seamless Ambient Glow (Cahaya Berpendar Halus Samar) */
.brt-hero__ambient-glow {
  position: absolute;
  top: 48%;
  left: 52%;
  transform: translate(-50%, -50%);
  width: min(1100px, 85vw);
  height: min(900px, 85vh);
  border-radius: 50%;
  background: radial-gradient(
    ellipse 60% 50% at center,
    rgba(242, 177, 10, 0.11) 0%,
    rgba(242, 177, 10, 0.06) 25%,
    rgba(28, 49, 82, 0.12) 50%,
    rgba(18, 34, 59, 0) 75%
  );
  filter: blur(55px);
  -webkit-filter: blur(55px);
  z-index: 3;
  pointer-events: none;
  animation: brtAmbientGlowBreath 12s ease-in-out infinite alternate;
  will-change: opacity, transform;
}

@keyframes brtAmbientGlowBreath {
  0% {
    opacity: 0.65;
    transform: translate(-50%, -50%) scale(0.97);
  }
  50% {
    opacity: 0.95;
    transform: translate(-50%, -50%) scale(1.03);
  }
  100% {
    opacity: 0.65;
    transform: translate(-50%, -50%) scale(0.97);
  }
}

/* Refined Subtle Vertical Yellow Dividing Line (#F2B10A) with Soft Atmospheric Glow */
.brt-hero__divider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 54%;
  width: 2px;
  background: linear-gradient(
    180deg,
    rgba(242, 177, 10, 0) 0%,
    rgba(242, 177, 10, 0.25) 12%,
    rgba(242, 177, 10, 0.85) 48%,
    rgba(242, 177, 10, 0.85) 54%,
    rgba(242, 177, 10, 0.25) 88%,
    rgba(242, 177, 10, 0) 100%
  );
  z-index: 4;
  box-shadow: 
    0 0 10px rgba(242, 177, 10, 0.25),
    0 0 25px rgba(242, 177, 10, 0.15),
    0 0 50px rgba(242, 177, 10, 0.08);
  pointer-events: none;
  animation: brtDividerBreathe 8s ease-in-out infinite alternate;
}

@keyframes brtDividerBreathe {
  0% {
    opacity: 0.75;
    box-shadow: 
      0 0 8px rgba(242, 177, 10, 0.2),
      0 0 20px rgba(242, 177, 10, 0.12),
      0 0 45px rgba(242, 177, 10, 0.05);
  }
  100% {
    opacity: 1;
    box-shadow: 
      0 0 14px rgba(242, 177, 10, 0.3),
      0 0 32px rgba(242, 177, 10, 0.18),
      0 0 65px rgba(242, 177, 10, 0.1);
  }
}

/* Rotating Baskara Sun Rays Pattern with Soft Diffuse Blur */
.brt-hero__sun-rays-wrap {
  position: absolute;
  top: 50%;
  left: 20%;
  transform: translate(-50%, -50%);
  width: 1100px;
  height: 1100px;
  z-index: 3;
  pointer-events: none;
  opacity: 0.055;
  filter: blur(12px);
  -webkit-filter: blur(12px);
  animation: brtRotateSun 75s linear infinite;
  transform-origin: center center;
}

@keyframes brtRotateSun {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Main Hero Content (Left Column) */
.brt-hero__content-container {
  position: relative;
  z-index: 6;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 30px 24px 100px 24px; /* Room for pinned bottom stats bar */
  display: flex;
  align-items: center;
}

@media (min-width: 992px) {
  .brt-hero__content-container {
    padding: 16px 32px 82px 32px;
  }
  .brt-hero__left-col {
    max-width: 720px;
  }
  .brt-hero__eyebrow {
    font-size: 11.5px !important;
    letter-spacing: 0.22em !important;
    margin-bottom: 8px !important;
  }
  .brt-hero__h1 {
    font-size: clamp(34px, 3.4vw, 54px) !important;
    line-height: 1.06 !important;
    letter-spacing: 0.01em !important;
    margin: 0 0 12px 0 !important;
  }
  .brt-hero__motto {
    font-size: clamp(14px, 1.1vw, 17px) !important;
    line-height: 1.45 !important;
    margin: 0 0 20px 0 !important;
    max-width: 620px !important;
  }
  .brt-hero__ctas {
    gap: 14px !important;
  }
  .brt-hero__ctas .brt-btn {
    min-height: 44px !important;
    padding: 10px 24px !important;
    font-size: 14px !important;
  }
}

.brt-hero__left-col {
  max-width: 760px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

/* Official Logo in Cream Box in Hero (#F6F4EE, radius 16px) */
.brt-hero__logo-box {
  background-color: var(--cream);
  border-radius: 16px;
  padding: 14px 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 28px -6px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(255, 255, 255, 0.1);
  transition: transform 0.3s ease;
  margin-bottom: 24px;
}

.brt-hero__logo-box:hover {
  transform: translateY(-2px);
}

.brt-hero__logo {
  display: block;
  width: auto;
  height: 60px;
  object-fit: contain;
}

.brt-hero__mobile-yellow-bar {
  display: none;
}

/* Eyebrow: Public Sans 600, uppercase, letter-spacing 0.25em, #F2B10A */
.brt-hero__eyebrow {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 13px;
  line-height: 1.4;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: 14px;
}

/* H1 Headline: Oswald 600, uppercase, large */
.brt-hero__h1 {
  font-family: var(--font-heading);
  font-weight: 600;
  text-transform: uppercase;
  line-height: 1.04;
  color: var(--cream);
  font-size: clamp(44px, 5.8vw, 84px);
  letter-spacing: 0.01em;
  margin: 0 0 20px 0;
  text-shadow: 0 4px 18px rgba(0, 0, 0, 0.5);
}

.brt-text-yellow {
  color: var(--yellow);
  text-shadow: 0 0 24px rgba(242, 177, 10, 0.4);
}

/* Motto: Italic Kuning (#F2B10A per instruction) */
.brt-hero__motto {
  font-family: var(--font-body);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(18px, 1.4vw, 23px);
  line-height: 1.5;
  color: var(--yellow);
  max-width: 680px;
  margin: 0 0 32px 0;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

/* Hero CTAs */
.brt-hero__ctas {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

/* Universal Button Styles */
.brt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  text-decoration: none;
  cursor: pointer;
  border-radius: var(--radius-btn);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  min-height: 52px;
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
}

.brt-btn--sm {
  min-height: 44px;
  padding: 10px 22px;
  font-size: 14px;
}

.brt-btn:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 3px;
}

/* Primary CTA: Yellow with Navy text */
.brt-btn--primary {
  background-color: var(--yellow);
  color: var(--navy);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 16px 32px;
  border: 1px solid var(--yellow);
  box-shadow: 0 6px 18px rgba(242, 177, 10, 0.35);
}

.brt-btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(242, 177, 10, 0.5);
  background-color: var(--yellow-hover);
}

/* Secondary CTA: WhatsApp outline */
.brt-btn--whatsapp {
  background-color: transparent;
  color: var(--cream);
  border: 2px solid var(--cream);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.02em;
  padding: 14px 26px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.brt-btn--whatsapp:hover {
  transform: translateY(-2px);
  border-color: var(--yellow);
  color: var(--yellow);
  background-color: rgba(242, 177, 10, 0.1);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
}

.brt-btn--secondary-cream {
  background-color: transparent;
  color: var(--cream);
  border: 1.5px solid rgba(246, 244, 238, 0.6);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 14px 28px;
}

.brt-btn--secondary-cream:hover {
  background-color: var(--cream);
  color: var(--navy);
}

.brt-icon-wa {
  flex-shrink: 0;
  fill: currentColor;
}

.brt-icon-arrow {
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.brt-btn:hover .brt-icon-arrow {
  transform: translateX(4px);
}

/* Bottom Stats Bar (Pinned Glass Panel with Big Yellow Numbers) */
.brt-hero__stats-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10;
  background: rgba(18, 34, 59, 0.90);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid rgba(242, 177, 10, 0.35);
  box-shadow: 0 -8px 25px rgba(0, 0, 0, 0.25);
  padding: 6px 0;
}

@media (min-width: 992px) {
  .brt-hero__stats-bar {
    padding: 5px 0;
  }
  .brt-stat-card {
    padding-left: 14px;
  }
  .brt-stat-card__number {
    font-size: clamp(24px, 2.3vw, 36px) !important;
    line-height: 1.05 !important;
  }
  .brt-stat-card__suffix {
    font-size: clamp(17px, 1.6vw, 24px) !important;
  }
  .brt-stat-card__label {
    font-size: 11px !important;
    margin-top: 2px !important;
    letter-spacing: 0.04em !important;
    line-height: 1.2 !important;
  }
}

.brt-hero__stats-inner {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 18px 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.brt-stat-card {
  display: flex;
  flex-direction: column;
  border-left: 1px solid rgba(221, 215, 202, 0.15);
  padding-left: 20px;
}

.brt-stat-card:first-child {
  border-left: none;
  padding-left: 0;
}

.brt-stat-card__number-wrap {
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.brt-stat-card__number {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--yellow);
  background: linear-gradient(135deg, #FFF0A8 0%, #F2B10A 55%, #D49800 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: clamp(34px, 3.4vw, 54px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  filter: drop-shadow(0 2px 10px rgba(242, 177, 10, 0.3));
}

.brt-stat-card__suffix {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--yellow);
  background: linear-gradient(135deg, #FFF0A8 0%, #F2B10A 55%, #D49800 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: clamp(24px, 2.2vw, 36px);
  filter: drop-shadow(0 2px 10px rgba(242, 177, 10, 0.3));
}

.brt-stat-card__label {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: clamp(12px, 0.95vw, 14px);
  line-height: 1.35;
  color: var(--text-on-dark);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 4px;
}

/* ==========================================================================
   GENERIC SECTION WRAPPERS & CONTAINERS
   ========================================================================== */
.brt-section {
  width: 100%;
  padding: 96px 40px;
  position: relative;
}

.brt-section--cream {
  background-color: var(--cream);
  color: var(--text-dark);
}

html[data-theme="dark"] .brt-section--cream {
  background-color: var(--navy-dark);
  color: var(--text-on-dark);
}

.brt-section--cream-2 {
  background-color: var(--cream-2);
  color: var(--text-dark);
}

html[data-theme="dark"] .brt-section--cream-2 {
  background-color: var(--navy-2);
  color: var(--text-on-dark);
}

.brt-section--navy {
  background-color: var(--navy);
  color: var(--text-on-dark);
}

.brt-container {
  width: 100%;
  padding-right: calc(var(--bs-gutter-x, 1.5rem) * 0.5);
  padding-left: calc(var(--bs-gutter-x, 1.5rem) * 0.5);
  margin-right: auto;
  margin-left: auto;
  max-width: 1320px;
  box-sizing: border-box;
}

@media (max-width: 575.98px) {
  .brt-container {
    padding-right: 1.25rem;
    padding-left: 1.25rem;
  }
}

/* Section Header Typography */
.brt-section-header {
  max-width: 860px;
  margin-bottom: 56px;
}

.brt-eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.brt-eyebrow--yellow { color: var(--yellow); }
.brt-eyebrow--red { color: var(--red); }
.brt-eyebrow--navy { color: var(--navy); }

.brt-h2 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(32px, 3.6vw, 52px);
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  margin: 0 0 16px 0;
}

.brt-h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(24px, 2.4vw, 36px);
  line-height: 1.15;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  margin: 0 0 12px 0;
}

.brt-subhead {
  font-size: clamp(16px, 1.2vw, 19px);
  line-height: 1.6;
  margin: 0;
}

.brt-text-cream { color: var(--cream); }
.brt-text-navy { color: var(--navy); }
.brt-text-body { color: var(--text-body); }
.brt-text-muted-dark { color: var(--muted-on-dark); }

html[data-theme="dark"] .brt-text-navy {
  color: #FFFFFF !important;
}
html[data-theme="dark"] .brt-text-body {
  color: #CBD5E1 !important;
}
html[data-theme="light"] .brt-text-navy {
  color: #0F172A !important;
}
html[data-theme="light"] .brt-text-body {
  color: #334155 !important;
}

/* Badges */
.brt-badge-yellow {
  display: inline-block;
  background-color: rgba(242, 177, 10, 0.15);
  color: var(--yellow);
  border: 1px solid rgba(242, 177, 10, 0.4);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 12px;
}

/* ==========================================================================
   SECTION 2: TRUSTED BY & CORPORATE VALUES
   ========================================================================== */
.brt-clients-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 72px;
}

.brt-client-card {
  background-color: var(--white);
  border: 1px solid var(--border-cream);
  border-radius: 12px;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
  transition: all 0.2s ease;
}

.brt-client-card:hover {
  transform: translateY(-2px);
  border-color: var(--navy);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
}

.brt-client-card__bullet {
  width: 8px;
  height: 8px;
  background-color: var(--red);
  border-radius: 50%;
  flex-shrink: 0;
}

.brt-client-card__name {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  color: var(--navy);
  line-height: 1.4;
}

html[data-theme="dark"] .brt-client-card {
  background-color: #0F1B2D !important;
  border-color: rgba(242, 177, 10, 0.18) !important;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3) !important;
}

html[data-theme="dark"] .brt-client-card:hover {
  border-color: #F2B10A !important;
  box-shadow: 0 8px 24px rgba(242, 177, 10, 0.15) !important;
}

html[data-theme="dark"] .brt-client-card__name {
  color: #E2E8F0 !important;
}

/* Values Block */
.brt-values-block {
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  padding: 0 !important;
}

.brt-value-card {
  background: #0F1B2D;
  border: 1px solid rgba(242, 177, 10, 0.22);
  border-radius: 16px;
  color: #F8FAFC;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.25s ease;
}

.brt-value-card:hover {
  transform: translateY(-4px);
  border-color: #F2B10A;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4), 0 0 20px rgba(242, 177, 10, 0.18);
}

.brt-value-card__badge {
  display: inline-block;
  align-self: flex-start;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #F2B10A !important;
  background: rgba(242, 177, 10, 0.12) !important;
  border: 1px solid rgba(242, 177, 10, 0.35) !important;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.brt-value-card__title {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  text-transform: uppercase;
  color: #FFFFFF !important;
  margin: 0 0 10px 0;
}

.brt-value-card__desc {
  font-size: 14.5px;
  line-height: 1.65;
  color: #CBD5E1 !important;
  margin: 0;
}

html[data-theme="light"] .brt-value-card {
  background: #FFFFFF !important;
  border: 1px solid #E2E8F0 !important;
  color: #0F172A !important;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.05) !important;
}

html[data-theme="light"] .brt-value-card:hover {
  border-color: #CBD5E1 !important;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08) !important;
}

html[data-theme="light"] .brt-value-card__badge {
  background: rgba(180, 83, 9, 0.08) !important;
  color: #B45309 !important;
  border-color: rgba(180, 83, 9, 0.25) !important;
}

html[data-theme="light"] .brt-value-card__title {
  color: #0F172A !important;
}

html[data-theme="light"] .brt-value-card__desc {
  color: #334155 !important;
}

/* ==========================================================================
   SECTION 3: 8 SPECIALIZED ELECTRICAL SERVICES
   ========================================================================== */
/* Workshop Showcase Banner (16px Radius) */
.brt-feature-banner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background-color: var(--navy-2);
  border: 1px solid rgba(246, 244, 238, 0.12);
  border-radius: var(--radius-card);
  padding: 32px;
  margin-bottom: 56px;
}

.brt-feature-banner__img-wrap {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  aspect-ratio: 16 / 9;
  background-color: var(--navy-dark);
}

.brt-feature-banner__img-wrap picture {
  display: block;
  width: 100%;
  height: 100%;
}

.brt-feature-banner__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.brt-feature-banner__pill {
  position: absolute;
  bottom: 16px;
  left: 16px;
  background: rgba(18, 34, 59, 0.85);
  color: var(--cream);
  backdrop-filter: blur(8px);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid rgba(242, 177, 10, 0.4);
}

.brt-feature-banner__text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.brt-feature-banner__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(22px, 2.2vw, 32px);
  text-transform: uppercase;
  line-height: 1.15;
  color: var(--cream);
  margin: 0 0 16px 0;
}

.brt-feature-banner__p {
  color: var(--text-on-dark);
  font-size: 15px;
  line-height: 1.6;
  margin: 0 0 24px 0;
}

/* 8 Services Cards Grid (4 Columns Desktop) */
.brt-services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.brt-service-card {
  background: linear-gradient(155deg, rgba(28, 49, 82, 0.9) 0%, rgba(14, 26, 46, 0.96) 100%);
  border: 1px solid rgba(242, 177, 10, 0.16);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.28);
}

.brt-service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, rgba(242, 177, 10, 0.5) 50%, transparent 100%);
  opacity: 0.4;
  transition: opacity 0.3s ease;
}

.brt-service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(242, 177, 10, 0.48);
  box-shadow: 0 16px 36px -10px rgba(0, 0, 0, 0.6), 0 0 25px -5px rgba(242, 177, 10, 0.25);
}

.brt-service-card:hover::before {
  opacity: 1;
}

.brt-service-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.brt-service-card__num {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 700;
  color: var(--yellow);
  line-height: 1;
}

.brt-service-card__tag {
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted-on-dark);
  background: rgba(18, 34, 59, 0.6);
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid rgba(246, 244, 238, 0.1);
}

.brt-service-card__title {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--cream);
  line-height: 1.25;
  margin: 0 0 12px 0;
}

.brt-service-card__desc {
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-on-dark);
  margin: 0 0 20px 0;
  flex-grow: 1;
}

.brt-service-card__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--yellow);
  text-decoration: none;
  transition: gap 0.2s ease;
}

.brt-service-card__link:hover {
  gap: 12px;
}

/* ==========================================================================
   SECTION 4: MPOM KLK GROUP CASE STUDY (Krem Kedua #ECE8DE)
   ========================================================================== */
.brt-case-study {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  background-color: var(--white);
  border: 1px solid var(--border-cream);
  border-radius: var(--radius-card);
  padding: 48px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

.brt-case-study__visual {
  position: relative;
}

.brt-case-study__img-wrap {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
  aspect-ratio: 16 / 9;
  background-color: var(--navy-dark);
}

.brt-case-study__img-wrap picture {
  display: block;
  width: 100%;
  height: 100%;
}

.brt-case-study__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.brt-case-study__badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: var(--navy);
  color: var(--yellow);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.08em;
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid rgba(242, 177, 10, 0.4);
}

.brt-case-study__content {
  display: flex;
  flex-direction: column;
}

.brt-case-study__lead {
  font-size: 16px;
  line-height: 1.6;
  color: var(--navy);
  font-weight: 500;
  margin: 0 0 18px 0;
}

.brt-case-study__callout {
  background: var(--cream);
  border-left: 4px solid var(--red);
  padding: 12px 18px;
  border-radius: 4px;
  margin-bottom: 18px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-body);
}

.brt-case-study__p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-body);
  margin: 0 0 28px 0;
}

/* 4 Big Metrics Grid inside Case Study (Yellow Numbers on Navy Cards) */
.brt-case-study__metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.brt-case-metric-card {
  background-color: var(--navy);
  border-radius: 12px;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 12px rgba(18, 34, 59, 0.2);
}

.brt-case-metric-card__number-wrap {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.brt-case-metric-card__num {
  font-family: var(--font-heading);
  font-size: clamp(32px, 3vw, 44px);
  font-weight: 700;
  color: var(--yellow);
  line-height: 1.1;
}

.brt-case-metric-card__unit {
  font-family: var(--font-heading);
  font-size: clamp(16px, 1.4vw, 22px);
  font-weight: 700;
  color: var(--yellow);
}

.brt-case-metric-card__label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-on-dark);
  margin-top: 4px;
}

/* ==========================================================================
   SECTION 5: COVERAGE AREA & OFFICIAL CREDENTIALS
   ========================================================================== */
.brt-coverage-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}

.brt-col-header {
  margin-bottom: 28px;
}

.brt-col-title {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--cream);
  margin: 0;
}

.brt-provinces-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.brt-province-item {
  background-color: var(--navy-2);
  border: 1px solid rgba(246, 244, 238, 0.1);
  border-radius: 10px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.brt-province-item--highlight {
  border-color: var(--yellow);
  background-color: rgba(242, 177, 10, 0.1);
}

.brt-province-item__pin {
  color: var(--yellow);
  font-size: 16px;
}

.brt-province-item__text {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  color: var(--cream);
  line-height: 1.4;
}

.brt-coverage-note {
  font-size: 13px;
  font-style: italic;
  color: var(--muted-on-dark);
  margin-top: 16px;
}

/* Credentials List */
.brt-credentials-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.brt-cred-card {
  background-color: var(--navy-2);
  border: 1px solid rgba(246, 244, 238, 0.1);
  border-radius: var(--radius-card);
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: all 0.2s ease;
}

.brt-cred-card:hover {
  border-color: var(--yellow);
  transform: translateY(-2px);
}

.brt-cred-card__badge {
  align-self: flex-start;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--yellow);
  background: rgba(242, 177, 10, 0.15);
  border: 1px solid rgba(242, 177, 10, 0.3);
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 12px;
}

.brt-cred-card__title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--cream);
  margin: 0 0 8px 0;
  line-height: 1.25;
}

.brt-cred-card__desc {
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-on-dark);
  margin: 0;
}

/* ==========================================================================
   SECTION 6: TECHNICAL INSIGHTS & KNOWLEDGE
   ========================================================================== */
.brt-insights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.brt-article-card {
  background-color: var(--white);
  border: 1px solid var(--border-cream);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
  transition: all 0.25s ease;
}

.brt-article-card:hover {
  transform: translateY(-4px);
  border-color: var(--navy);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1);
}

.brt-article-card__tag-wrap {
  margin-bottom: 16px;
}

.brt-article-card__tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--red);
  background: rgba(179, 32, 42, 0.08);
  border: 1px solid rgba(179, 32, 42, 0.2);
  padding: 3px 10px;
  border-radius: 4px;
}

.brt-article-card__title {
  font-family: var(--font-heading);
  font-size: 21px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--navy);
  line-height: 1.25;
  margin: 0 0 14px 0;
}

.brt-article-card__desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-body);
  margin: 0 0 24px 0;
  flex-grow: 1;
}

.brt-article-card__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--navy);
  text-decoration: none;
  transition: gap 0.2s ease, color 0.2s ease;
}

.brt-article-card__link:hover {
  color: var(--red);
  gap: 12px;
}

/* ==========================================================================
   SECTION 7: FINAL CONVERSION CTA BANNER
   ========================================================================== */
.brt-section--cta-banner {
  background-color: var(--navy);
  padding: 72px 40px;
}

.brt-cta-banner-box {
  background: linear-gradient(135deg, rgba(28, 49, 82, 0.95) 0%, rgba(18, 34, 59, 0.98) 100%);
  border: 2px solid var(--yellow);
  border-radius: var(--radius-card);
  padding: 64px 48px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
}

.brt-cta-banner-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(28px, 3.2vw, 46px);
  text-transform: uppercase;
  color: var(--cream);
  line-height: 1.15;
  max-width: 900px;
  margin: 0 0 18px 0;
}

.brt-cta-banner-desc {
  font-size: 17px;
  line-height: 1.6;
  color: var(--text-on-dark);
  max-width: 780px;
  margin: 0 0 36px 0;
}

.brt-cta-banner-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* ==========================================================================
   SECTION 8: COMPREHENSIVE FOOTER (#0E1A2E + Official Logo in Cream Box)
   ========================================================================== */
.brt-footer {
  background-color: var(--navy-dark);
  color: var(--text-on-dark);
  padding: 80px 40px 32px 40px;
  border-top: 1px solid rgba(242, 177, 10, 0.3);
}

.brt-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
  gap: 48px;
  margin-bottom: 64px;
}

.brt-footer__col--brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

/* Official Logo in Cream Box in Footer */
.brt-footer__logo-box {
  background-color: var(--cream);
  border-radius: 12px;
  padding: 10px 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
}

.brt-footer__logo {
  display: block;
  width: auto;
  height: 52px;
  object-fit: contain;
}

.brt-footer__about-text {
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted-on-dark);
  margin: 0 0 20px 0;
}

.brt-footer__values-pill {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--yellow);
  background: rgba(242, 177, 10, 0.1);
  border: 1px solid rgba(242, 177, 10, 0.3);
  padding: 6px 14px;
  border-radius: 6px;
}

.brt-footer__title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cream);
  margin: 0 0 20px 0;
}

.brt-footer__links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.brt-footer__links a {
  font-size: 14px;
  color: var(--text-on-dark);
  text-decoration: none;
  transition: color 0.2s ease, transform 0.2s ease;
  display: inline-block;
}

.brt-footer__links a:hover {
  color: var(--yellow);
  transform: translateX(3px);
}

.brt-footer__contact-info {
  font-style: normal;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.brt-footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-on-dark);
}

.brt-footer__contact-item a {
  color: var(--yellow);
  text-decoration: none;
  font-weight: 600;
}

.brt-footer__contact-item a:hover {
  text-decoration: underline;
}

.brt-footer__contact-icon {
  flex-shrink: 0;
  font-size: 16px;
}

/* Footer Bottom Bar */
.brt-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid rgba(246, 244, 238, 0.1);
  font-size: 13px;
  color: var(--muted-on-dark);
}

.brt-footer__motto {
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--yellow);
}

/* ==========================================================================
   FLOATING WHATSAPP BUTTON (Bulat Kecil, Berpendar, Muncul Saat Scroll Bawah Hero)
   ========================================================================== */
.brt-floating-wa {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  width: 52px;
  height: 52px;
  min-width: 52px;
  min-height: 52px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #34E875 0%, #25D366 60%, #1EBE5D 100%);
  color: #FFFFFF !important;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.45), 0 2px 6px rgba(0, 0, 0, 0.25);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: scale(0.6) translateY(18px);
  transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1), 
              transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), 
              visibility 0.35s ease,
              box-shadow 0.3s ease;
  animation: brt-wa-glow 3s infinite ease-in-out;
}

.brt-floating-wa.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: scale(1) translateY(0);
}

.brt-floating-wa:hover {
  transform: scale(1.12) translateY(-2px);
  box-shadow: 0 0 26px 8px rgba(37, 211, 102, 0.85), 0 8px 24px rgba(0, 0, 0, 0.4);
  color: #FFFFFF !important;
}

.brt-floating-wa:active {
  transform: scale(0.95);
}

.brt-floating-wa__icon {
  flex-shrink: 0;
  color: #FFFFFF;
  transition: transform 0.25s ease;
}

.brt-floating-wa:hover .brt-floating-wa__icon {
  transform: scale(1.08);
}

/* Pulsing & Radiating Waves (Berpendar) */
.brt-floating-wa__pulse,
.brt-floating-wa__ripple {
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid #25D366;
  pointer-events: none;
  z-index: -1;
}

.brt-floating-wa__pulse {
  animation: brt-wa-ripple 2.2s infinite cubic-bezier(0.2, 0.8, 0.4, 1);
}

.brt-floating-wa__ripple {
  animation: brt-wa-ripple 2.2s infinite cubic-bezier(0.2, 0.8, 0.4, 1) 1.1s;
}

@keyframes brt-wa-ripple {
  0% {
    transform: scale(0.95);
    opacity: 0.9;
  }
  65% {
    transform: scale(1.55);
    opacity: 0;
  }
  100% {
    transform: scale(1.55);
    opacity: 0;
  }
}

@keyframes brt-wa-glow {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5), 0 4px 14px rgba(0, 0, 0, 0.3);
  }
  50% {
    box-shadow: 0 0 20px 5px rgba(37, 211, 102, 0.75), 0 6px 20px rgba(0, 0, 0, 0.4);
  }
}

@media (prefers-reduced-motion: reduce) {
  .brt-floating-wa {
    animation: none;
    transition: opacity 0.15s ease;
  }
  .brt-floating-wa__pulse,
  .brt-floating-wa__ripple {
    display: none;
  }
}

/* ==========================================================================
   RESPONSIVE DESIGN (Desktop 1440px, Tablet 768px-1024px, Mobile 390px)
   ========================================================================== */

/* Tablet & Compact Laptop Screens (max-width: 1279px) */
@media (max-width: 1279px) {
  .brt-header {
    padding: 10px 24px;
  }
  
  .brt-header__nav {
    display: none; /* Hide main links on compact screens */
  }

  .brt-btn--header-quote {
    display: none;
  }

  .brt-hero__divider {
    display: none;
  }

  .brt-hero__content-container {
    padding: 32px 24px 100px 24px;
  }

  .brt-hero__left-col {
    max-width: 600px;
  }

  .brt-clients-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .brt-values-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .brt-feature-banner {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .brt-services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .brt-case-study {
    grid-template-columns: 1fr;
    padding: 32px;
  }

  .brt-coverage-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .brt-insights-grid {
    grid-template-columns: 1fr;
  }

  .brt-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

/* Mobile Screens (max-width: 767px - e.g. 390px, 360px Android) */
@media (max-width: 767px) {
  .brt-header {
    padding: 8px 10px;
  }

  .brt-header__inner {
    gap: 6px;
    justify-content: space-between;
  }

  .brt-header__brand {
    gap: 6px;
    min-width: 0;
    flex-shrink: 1;
    overflow: hidden;
  }

  .brt-header__brand-info {
    min-width: 0;
    overflow: hidden;
  }

  .brt-header__brand-title {
    font-size: clamp(10.5px, 2.7vw, 12px);
    letter-spacing: 0.02em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .brt-header__brand-sub {
    display: none;
  }

  .brt-header__logo-box {
    padding: 2px 5px;
    border-radius: 6px;
    flex-shrink: 0;
  }

  .brt-header__logo {
    height: 20px;
    width: auto;
  }

  .brt-header__actions {
    gap: 5px;
    flex-shrink: 0;
  }

  .brt-lang-switcher {
    padding: 2px;
    gap: 2px;
  }

  .brt-lang-btn {
    min-height: 30px;
    min-width: 28px;
    padding: 2px 7px;
    font-size: 11px;
    border-radius: 12px;
    letter-spacing: 0.02em;
  }

  .brt-theme-btn {
    width: 34px;
    height: 34px;
    min-width: 34px;
    min-height: 34px;
    font-size: 15px;
    border-radius: 8px;
  }

  .brt-hamburger {
    width: 36px;
    height: 36px;
    min-width: 36px;
    min-height: 36px;
    padding: 7px 5px;
    border-radius: 8px;
  }

  .brt-btn--header-quote {
    display: none;
  }

  /* Mobile Content Flow & Fluid Wrapping */
  .brt-btn {
    white-space: normal;
    text-align: center;
    max-width: 100%;
  }

  .brt-service-card {
    padding: 20px 16px !important;
  }

  .brt-process-card {
    padding: 20px 16px !important;
  }

  .brt-hero {
    flex-direction: column;
    justify-content: flex-start;
    height: auto;
    min-height: 100svh;
    padding-top: 56px;
    padding-bottom: 32px;
  }

  .brt-hero__overlay {
    background: linear-gradient(
      180deg,
      rgba(18, 34, 59, 0.85) 0%,
      rgba(18, 34, 59, 0.92) 40%,
      rgba(18, 34, 59, 0.98) 75%,
      #12223B 100%
    );
  }

  html[data-theme="light"] .brt-hero__overlay,
  html[data-bs-theme="light"] .brt-hero__overlay {
    background: linear-gradient(
      180deg,
      rgba(248, 250, 252, 0.92) 0%,
      rgba(248, 250, 252, 0.95) 45%,
      rgba(248, 250, 252, 0.98) 80%,
      #F8FAFC 100%
    );
  }

  .brt-hero__ambient-glow {
    top: 35%;
    left: 50%;
    width: 320px;
    height: 320px;
    filter: blur(40px);
    -webkit-filter: blur(40px);
    opacity: 0.7;
  }

  .brt-hero__content-container {
    padding: 20px 20px 0 20px;
    width: 100%;
  }

  .brt-hero__left-col {
    max-width: 100%;
    width: 100%;
  }

  .brt-hero__logo-box {
    padding: 10px 16px;
    border-radius: 12px;
    margin-bottom: 16px;
  }

  .brt-hero__logo {
    height: 44px;
  }

  .brt-hero__mobile-yellow-bar {
    display: block;
    width: 44px;
    height: 4px;
    background-color: var(--yellow);
    border-radius: 2px;
    margin-bottom: 12px;
  }

  .brt-hero__eyebrow {
    font-size: 11px;
    letter-spacing: 0.18em;
    margin-bottom: 10px;
  }

  .brt-hero__h1 {
    font-size: clamp(34px, 8.5vw, 48px);
    line-height: 1.08;
    margin-bottom: 14px;
  }

  .brt-hero__motto {
    font-size: 15px;
    line-height: 1.45;
    margin-bottom: 24px;
  }

  .brt-hero__ctas {
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }

  .brt-btn {
    width: 100%;
    min-height: 48px;
    padding: 14px 20px;
    font-size: 15px;
  }

  /* Stats Bar unpinned 2x2 grid on mobile */
  .brt-hero__stats-bar {
    position: relative;
    bottom: auto;
    left: auto;
    right: auto;
    width: calc(100% - 32px);
    margin: 28px auto 0 auto;
    border-radius: var(--radius-card);
    border: 1px solid rgba(242, 177, 10, 0.35);
  }

  .brt-hero__stats-inner {
    padding: 16px;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px 12px;
  }

  .brt-stat-card {
    border-left: none;
    padding-left: 0;
    border-bottom: 1px solid rgba(221, 215, 202, 0.12);
    padding-bottom: 10px;
  }

  .brt-stat-card:nth-child(3),
  .brt-stat-card:nth-child(4) {
    border-bottom: none;
    padding-bottom: 0;
  }

  .brt-stat-card__number {
    font-size: 30px;
  }

  .brt-stat-card__suffix {
    font-size: 20px;
  }

  .brt-stat-card__label {
    font-size: 11px;
  }

  /* Section Padding Mobile */
  .brt-section {
    padding: 64px 20px;
  }

  .brt-clients-grid {
    grid-template-columns: 1fr;
  }

  .brt-values-block {
    padding: 24px 20px;
  }

  .brt-services-grid {
    grid-template-columns: 1fr;
  }

  .brt-case-study {
    padding: 24px 20px;
  }

  .brt-case-study__metrics-grid {
    grid-template-columns: 1fr;
  }

  .brt-credentials-list {
    grid-template-columns: 1fr;
  }

  .brt-cta-banner-box {
    padding: 40px 20px;
  }

  .brt-footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .brt-footer__bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  /* Floating WhatsApp on Mobile (48px Touch Target, Bulat Kecil Kanan Bawah) */
  .brt-floating-wa {
    bottom: 18px;
    right: 18px;
    width: 48px;
    height: 48px;
    min-width: 48px;
    min-height: 48px;
    padding: 0;
    box-shadow: 0 4px 14px rgba(37, 211, 102, 0.5);
  }

  .brt-floating-wa__icon {
    width: 25px;
    height: 25px;
  }

  /* Safe Clearance so Floating WA never covers footer or form submit */
  .brt-footer {
    padding-bottom: 96px;
  }

  .brt-cta-banner-box {
    margin-bottom: 24px;
  }
}

/* Ultra-compact Mobile Screens (max-width: 359px - e.g. 320px) */
@media (max-width: 359px) {
  .brt-header {
    padding: 6px 8px;
  }

  .brt-header__inner {
    gap: 4px;
  }

  .brt-header__brand {
    gap: 6px;
  }

  .brt-header__logo-box {
    padding: 2px 4px;
  }

  .brt-header__logo {
    height: 18px;
  }

  .brt-header__brand-title {
    font-size: 11px;
    letter-spacing: 0.02em;
  }

  .brt-header__actions {
    gap: 4px;
  }

  .brt-lang-btn {
    min-height: 28px;
    min-width: 28px;
    padding: 2px 6px;
    font-size: 10.5px;
  }

  .brt-theme-btn {
    width: 32px;
    height: 32px;
    min-width: 32px;
    min-height: 32px;
    font-size: 14px;
  }

  .brt-hamburger {
    width: 34px;
    height: 34px;
    min-width: 34px;
    min-height: 34px;
    padding: 6px 5px;
  }

  .brt-hamburger__bar {
    width: 18px;
  }
}

/* Accessibility: Prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001s !important;
  }

  .brt-hero__img {
    animation: none !important;
    transform: none !important;
  }

  .brt-hero__sun-rays-wrap {
    animation: none !important;
  }
}


/* ==========================================================================
   i18n & CHINESE (zh-Hans) FONT STACK PREPARATION
   ========================================================================== */
:root[lang="zh-Hans"], html[lang="zh-Hans"] body {
  font-family: -apple-system, BlinkMacSystemFont, "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
}

/* ==========================================================================
   LANGUAGE SWITCH TOAST NOTIFICATION (.brt-lang-toast)
   ========================================================================== */
.brt-lang-toast {
  position: fixed;
  bottom: 74px; /* Sits cleanly above pinned stats bar */
  left: 24px;
  max-width: 440px;
  background-color: #12223B;
  color: #F6F4EE;
  border: 1px solid #F2B10A;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  border-radius: 12px;
  padding: 14px 18px;
  font-size: 14px;
  font-family: 'Public Sans', system-ui, sans-serif;
  line-height: 1.5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  z-index: 9998;
  animation: brtToastSlideUp 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

[data-theme="dark"] .brt-lang-toast {
  background-color: #0E1A2E;
  border-color: #F2B10A;
}

.brt-toast-link {
  color: #F2B10A;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.15s ease;
}

.brt-toast-link:hover,
.brt-toast-link:focus-visible {
  color: #FFCF55;
}

.brt-lang-toast__close {
  background: transparent;
  border: none;
  color: #F6F4EE;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  padding: 4px 8px;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: background 0.15s ease;
}

.brt-lang-toast__close:hover,
.brt-lang-toast__close:focus-visible {
  background: rgba(255, 255, 255, 0.15);
  color: #FFFFFF;
}

@keyframes brtToastSlideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 767px) {
  .brt-lang-toast {
    left: 16px;
    right: 16px;
    bottom: 80px; /* Sits cleanly above mobile navigation bar / footer */
    max-width: none;
  }
}

/* ==========================================================================
   COOKIE CONSENT BANNER (.brt-cookie-banner)
   ========================================================================== */
.brt-cookie-banner {
  position: fixed;
  bottom: 74px; /* Sits cleanly above pinned stats bar */
  left: 24px;
  right: auto;
  max-width: 440px;
  background-color: #FFFFFF;
  color: #12223B;
  border: 1px solid #CBD5E1;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.2);
  border-radius: 14px;
  padding: 18px 22px;
  z-index: 9995;
  font-family: 'Public Sans', system-ui, sans-serif;
  animation: brtToastSlideUp 0.35s ease forwards;
}

[data-theme="dark"] .brt-cookie-banner {
  background-color: #1C3152;
  color: #F6F4EE;
  border-color: #2D4875;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.6);
}

.brt-cookie-banner__inner {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.brt-cookie-banner__content {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.brt-cookie-icon {
  font-size: 24px;
  line-height: 1;
  flex-shrink: 0;
}

.brt-cookie-banner__text {
  font-size: 13.5px;
  line-height: 1.5;
  margin: 0;
  color: inherit;
}

.brt-cookie-link {
  color: #12223B;
  font-weight: 700;
  text-decoration: underline;
}

[data-theme="dark"] .brt-cookie-link {
  color: #F2B10A;
}

.brt-cookie-banner__actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.brt-btn--cookie {
  padding: 8px 18px;
  font-size: 13.5px;
  font-weight: 700;
  min-height: 44px;
  cursor: pointer;
  border-radius: 8px;
}

@media (max-width: 767px) {
  .brt-cookie-banner {
    left: 16px;
    right: 16px;
    bottom: 86px;
    max-width: none;
  }
}

/* ==========================================================================
   HERO SECTION DUAL-THEME STYLING (DARK & LIGHT MODE)
   ========================================================================== */

/* Hero Container Background */
html[data-theme="light"] .brt-hero,
html[data-bs-theme="light"] .brt-hero {
  background-color: #F8FAFC !important;
  color: #0F172A !important;
}

/* Ambient Glow & Dividing Line in Light Mode */
html[data-theme="light"] .brt-hero__ambient-glow,
html[data-bs-theme="light"] .brt-hero__ambient-glow {
  background: radial-gradient(
    ellipse 60% 50% at center,
    rgba(217, 119, 6, 0.12) 0%,
    rgba(217, 119, 6, 0.05) 30%,
    rgba(248, 250, 252, 0) 70%
  );
}

html[data-theme="light"] .brt-hero__divider,
html[data-bs-theme="light"] .brt-hero__divider {
  background: linear-gradient(
    180deg,
    rgba(217, 119, 6, 0) 0%,
    rgba(217, 119, 6, 0.3) 15%,
    rgba(217, 119, 6, 0.85) 48%,
    rgba(217, 119, 6, 0.85) 54%,
    rgba(217, 119, 6, 0.3) 85%,
    rgba(217, 119, 6, 0) 100%
  ) !important;
  box-shadow: 0 0 10px rgba(217, 119, 6, 0.25) !important;
}

/* Typography in Light Mode */
html[data-theme="light"] .brt-hero__eyebrow,
html[data-bs-theme="light"] .brt-hero__eyebrow {
  color: #B45309 !important;
}

html[data-theme="light"] .brt-hero__h1,
html[data-bs-theme="light"] .brt-hero__h1 {
  color: #0F172A !important;
  text-shadow: none !important;
}

html[data-theme="light"] .brt-hero__h1 .brt-text-yellow,
html[data-bs-theme="light"] .brt-hero__h1 .brt-text-yellow {
  color: #D97706 !important;
  text-shadow: none !important;
}

html[data-theme="light"] .brt-hero__motto,
html[data-bs-theme="light"] .brt-hero__motto {
  color: #78350F !important;
  text-shadow: none !important;
}

/* Hero CTAs in Light Mode */
html[data-theme="light"] .brt-hero .brt-btn--primary,
html[data-bs-theme="light"] .brt-hero .brt-btn--primary {
  background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%) !important;
  color: #0F172A !important;
  border-color: #D97706 !important;
  box-shadow: 0 6px 18px rgba(217, 119, 6, 0.35) !important;
}

html[data-theme="light"] .brt-hero .brt-btn--whatsapp,
html[data-bs-theme="light"] .brt-hero .brt-btn--whatsapp {
  background-color: #FFFFFF !important;
  border: 1.5px solid #0F172A !important;
  color: #0F172A !important;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.1) !important;
}

html[data-theme="light"] .brt-hero .brt-btn--whatsapp:hover,
html[data-bs-theme="light"] .brt-hero .brt-btn--whatsapp:hover {
  background-color: #0F172A !important;
  color: #FFFFFF !important;
}

/* Hero Bottom Stats Bar in Light Mode */
html[data-theme="light"] .brt-hero__stats-bar,
html[data-bs-theme="light"] .brt-hero__stats-bar {
  background: rgba(255, 255, 255, 0.94) !important;
  backdrop-filter: blur(14px) !important;
  -webkit-backdrop-filter: blur(14px) !important;
  border-top: 1px solid #CBD5E1 !important;
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.08) !important;
}

html[data-theme="light"] .brt-hero__stats-bar .brt-stat-card,
html[data-bs-theme="light"] .brt-hero__stats-bar .brt-stat-card {
  border-left-color: rgba(15, 23, 42, 0.12) !important;
}

html[data-theme="light"] .brt-hero__stats-bar .brt-stat-card__number,
html[data-bs-theme="light"] .brt-hero__stats-bar .brt-stat-card__number,
html[data-theme="light"] .brt-hero__stats-bar .brt-stat-card__suffix,
html[data-bs-theme="light"] .brt-hero__stats-bar .brt-stat-card__suffix {
  background: linear-gradient(135deg, #D97706 0%, #B45309 100%) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  filter: drop-shadow(0 2px 8px rgba(217, 119, 6, 0.2)) !important;
}

html[data-theme="light"] .brt-hero__stats-bar .brt-stat-card__label,
html[data-bs-theme="light"] .brt-hero__stats-bar .brt-stat-card__label {
  color: #334155 !important;
}

/* ==========================================================================
   ENTERPRISE BOOTSTRAP 5 DUAL-THEME HIGH-CONTRAST CARD SYSTEM
   ========================================================================== */

/* 1. Client Cards (#clients) */
.brt-client-card {
  background: var(--navy-dark);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #F8FAFC;
  transition: all 0.25s ease;
}

.brt-client-card:hover {
  transform: translateY(-2px);
  border-color: #F2B10A;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

html[data-theme="light"] .brt-client-card {
  background: #FFFFFF !important;
  border: 1px solid #E2E8F0 !important;
  color: #0F172A !important;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04) !important;
}

html[data-theme="light"] .brt-client-card:hover {
  border-color: #CBD5E1 !important;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08) !important;
}

/* 2. Corporate Value Cards */
.brt-value-card {
  background: #0F1B2D;
  border: 1px solid rgba(242, 177, 10, 0.25);
  color: #F8FAFC;
  transition: all 0.25s ease;
}

.brt-value-card:hover {
  transform: translateY(-4px);
  border-color: #F2B10A;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

html[data-theme="light"] .brt-value-card {
  background: #FFFFFF !important;
  border: 1px solid #E2E8F0 !important;
  color: #0F172A !important;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.06) !important;
}

html[data-theme="light"] .brt-value-card .brt-value-card__title {
  color: #0F172A !important;
}

html[data-theme="light"] .brt-value-card .brt-value-card__desc {
  color: #334155 !important;
}

/* 3. Case Study Card (#case-study) */
.brt-case-img-box {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  height: 100%;
  min-height: 420px;
  max-height: 520px;
  background-color: #080E1A;
}

.brt-case-study__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

.brt-case-study-card {
  background: #0B1526;
  border: 1px solid rgba(242, 177, 10, 0.35);
  color: #F8FAFC;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.brt-case-study__lead {
  font-size: 1.15rem;
  line-height: 1.6;
  color: #FFFFFF;
}

.brt-case-study__p {
  font-size: 0.95rem;
  line-height: 1.65;
  color: #CBD5E1;
}

.brt-case-study__callout {
  background: rgba(239, 68, 68, 0.12);
  color: #FCA5A5;
  border-left: 4px solid #EF4444;
  font-size: 0.95rem;
  line-height: 1.5;
}

.brt-case-metric-card {
  background: #080E1A;
  border: 1px solid rgba(242, 177, 10, 0.25);
  color: #F8FAFC;
  border-radius: 12px;
}

html[data-theme="light"] .brt-case-study-card {
  background: #FFFFFF !important;
  border: 1px solid #CBD5E1 !important;
  color: #0F172A !important;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08) !important;
}

html[data-theme="light"] .brt-case-study__lead {
  color: #0F172A !important;
}

html[data-theme="light"] .brt-case-study__p {
  color: #334155 !important;
}

html[data-theme="light"] .brt-case-study__callout {
  background: #FEF2F2 !important;
  color: #991B1B !important;
  border-left-color: #DC2626 !important;
}

html[data-theme="light"] .brt-case-metric-card {
  background: #F8FAFC !important;
  border: 1px solid #E2E8F0 !important;
  color: #0F172A !important;
}

html[data-theme="light"] .brt-case-metric-card .text-warning {
  color: #B45309 !important;
}

/* 4. Coverage & Credentials Cards (#coverage) */
.brt-coverage-card {
  background: #0B1526;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #F8FAFC;
}

.brt-cred-card {
  background: #080E1A;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #F8FAFC;
}

html[data-theme="light"] .brt-coverage-card {
  background: #FFFFFF !important;
  border: 1px solid #CBD5E1 !important;
  color: #0F172A !important;
  box-shadow: 0 6px 20px rgba(15, 23, 42, 0.05) !important;
}

html[data-theme="light"] .brt-coverage-card .brt-col-title {
  color: #0F172A !important;
}

html[data-theme="light"] .brt-cred-card {
  background: #F8FAFC !important;
  border: 1px solid #E2E8F0 !important;
  color: #0F172A !important;
}

html[data-theme="light"] .brt-cred-card__title {
  color: #0F172A !important;
}

html[data-theme="light"] .brt-cred-card__desc {
  color: #475569 !important;
}

/* 5. Article Insights Cards (#insights) */
.brt-article-card {
  background: #0F1B2D;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #F8FAFC;
  transition: all 0.25s ease;
}

.brt-article-card:hover {
  transform: translateY(-4px);
  border-color: #F2B10A;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
}

.brt-article-card .card-title {
  color: #FFFFFF;
  font-family: var(--font-heading);
  letter-spacing: 0.02em;
}

.brt-article-card .card-text {
  color: #CBD5E1;
  font-size: 0.95rem;
  line-height: 1.6;
}

html[data-theme="light"] .brt-article-card {
  background: #FFFFFF !important;
  border: 1px solid #E2E8F0 !important;
  color: #0F172A !important;
  box-shadow: 0 6px 20px rgba(15, 23, 42, 0.06) !important;
}

html[data-theme="light"] .brt-article-card:hover {
  border-color: #CBD5E1 !important;
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.12) !important;
}

html[data-theme="light"] .brt-article-card .card-title {
  color: #0F172A !important;
}

html[data-theme="light"] .brt-article-card .card-text {
  color: #334155 !important;
}

/* 6. Final Conversion CTA Banner (#contact) */
.brt-cta-banner-box {
  background: linear-gradient(145deg, #0B1526 0%, #060B14 100%);
  border: 1px solid rgba(242, 177, 10, 0.35);
  color: #FFFFFF;
}

html[data-theme="light"] .brt-cta-banner-box {
  background: linear-gradient(145deg, #0F172A 0%, #1E293B 100%) !important;
  border: 1px solid #334155 !important;
  color: #FFFFFF !important;
  box-shadow: 0 20px 48px rgba(15, 23, 42, 0.16) !important;
}

/* ==========================================================================
   AUTHENTIC FIELD & WORKSHOP GALLERY (HORIZONTAL SCROLL + HOVER OVERLAY)
   ========================================================================== */
.brt-section--gallery {
  background-color: #080E1A;
  border-top: 1px solid rgba(242, 177, 10, 0.18);
  border-bottom: 1px solid rgba(242, 177, 10, 0.18);
  position: relative;
  overflow: hidden;
  padding: 80px 0;
}

html[data-theme="light"] .brt-section--gallery {
  background-color: #F8FAFC !important;
  border-top: 1px solid #E2E8F0 !important;
  border-bottom: 1px solid #E2E8F0 !important;
}

html[data-theme="light"] .brt-section--gallery h2 {
  color: #0F172A !important;
}

html[data-theme="light"] .brt-section--gallery .text-muted-dark {
  color: #475569 !important;
}

/* Gallery Slider Navigation Buttons */
.brt-gallery-ctrl-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1.5px solid rgba(242, 177, 10, 0.4);
  color: #F2B10A;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.brt-gallery-ctrl-btn:hover {
  background: #F2B10A;
  color: #080E1A;
  transform: scale(1.06);
  box-shadow: 0 4px 14px rgba(242, 177, 10, 0.4);
}

html[data-theme="light"] .brt-gallery-ctrl-btn {
  background: #FFFFFF !important;
  border: 1.5px solid #CBD5E1 !important;
  color: #0F172A !important;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08) !important;
}

html[data-theme="light"] .brt-gallery-ctrl-btn:hover {
  background: #0F172A !important;
  color: #FFFFFF !important;
  border-color: #0F172A !important;
}

/* Horizontal Scroll Outer & Track */
.brt-gallery-track-outer {
  width: 100%;
  position: relative;
  margin-top: 18px;
  margin-bottom: 18px;
}

.brt-gallery-track {
  display: flex;
  gap: 22px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
  padding: 12px 24px 28px 24px;
  cursor: grab;
  scrollbar-width: thin;
  scrollbar-color: #F2B10A rgba(14, 26, 46, 0.4);
}

.brt-gallery-track.is-dragging {
  cursor: grabbing !important;
  user-select: none !important;
  scroll-snap-type: none !important;
  scroll-behavior: auto !important;
}

.brt-gallery-track::-webkit-scrollbar {
  height: 8px;
}

.brt-gallery-track::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
}

.brt-gallery-track::-webkit-scrollbar-thumb {
  background: #F2B10A;
  border-radius: 999px;
}

html[data-theme="light"] .brt-gallery-track::-webkit-scrollbar-track {
  background: #E2E8F0;
}

html[data-theme="light"] .brt-gallery-track::-webkit-scrollbar-thumb {
  background: #0F172A;
}

/* Individual Gallery Card Item with Dynamic Aspect Ratios */
.brt-gallery-card-item {
  flex: 0 0 clamp(290px, 28vw, 360px);
  height: 440px;
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  scroll-snap-align: start;
  background: #0B1526;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.25s ease;
}

/* Rhythmic Width Variations for Varied Photo Dimensions */
.brt-gallery-card-item--tall-portrait {
  flex: 0 0 clamp(260px, 22vw, 300px);
}

.brt-gallery-card-item--portrait {
  flex: 0 0 clamp(310px, 28vw, 370px);
}

.brt-gallery-card-item--square {
  flex: 0 0 clamp(390px, 34vw, 450px);
}

.brt-gallery-card-item--landscape {
  flex: 0 0 clamp(440px, 38vw, 500px);
}

@media (max-width: 768px) {
  .brt-gallery-card-item {
    height: 390px;
  }
  .brt-gallery-card-item--tall-portrait {
    flex: 0 0 250px;
  }
  .brt-gallery-card-item--portrait {
    flex: 0 0 280px;
  }
  .brt-gallery-card-item--square {
    flex: 0 0 320px;
  }
  .brt-gallery-card-item--landscape {
    flex: 0 0 340px;
  }
}

.brt-gallery-card-item:hover,
.brt-gallery-card-item.is-active {
  transform: translateY(-6px);
  border-color: rgba(242, 177, 10, 0.6);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.5), 0 0 25px rgba(242, 177, 10, 0.25);
}

html[data-theme="light"] .brt-gallery-card-item {
  background: #FFFFFF !important;
  border: 1px solid #CBD5E1 !important;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08) !important;
}

html[data-theme="light"] .brt-gallery-card-item:hover,
html[data-theme="light"] .brt-gallery-card-item.is-active {
  border-color: #B45309 !important;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.16) !important;
}

/* Card Image Box */
.brt-gallery-img-box {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: #0E1A2E;
}

.brt-gallery-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), filter 0.4s ease;
}

.brt-gallery-card-item:hover .brt-gallery-img,
.brt-gallery-card-item.is-active .brt-gallery-img {
  transform: scale(1.08);
  filter: brightness(0.35);
}

/* Top Badges */
.brt-gallery-top-badges {
  position: absolute;
  top: 14px;
  left: 14px;
  right: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 3;
  pointer-events: none;
}

.brt-badge-category {
  background: rgba(8, 14, 26, 0.88);
  backdrop-filter: blur(6px);
  color: #F2B10A;
  border: 1px solid rgba(242, 177, 10, 0.4);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 11px;
  border-radius: 999px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.brt-badge-authentic {
  background: rgba(22, 101, 52, 0.9);
  backdrop-filter: blur(6px);
  color: #DCFCE7;
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 9px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.brt-badge-copyright {
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(6px);
  color: #E2E8F0;
  border: 1px solid rgba(242, 177, 10, 0.35);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 8px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.brt-badge-copyright svg {
  color: #F2B10A;
}

html[data-theme="light"] .brt-badge-copyright {
  background: rgba(255, 255, 255, 0.95);
  border-color: rgba(180, 83, 9, 0.35);
  color: #0F172A;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

html[data-theme="light"] .brt-badge-copyright svg {
  color: #B45309;
}

/* Default Bottom Title Bar (Visible before hover) */
.brt-gallery-default-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px 18px 16px 18px;
  background: linear-gradient(0deg, rgba(8, 14, 26, 0.95) 0%, rgba(8, 14, 26, 0.72) 65%, transparent 100%);
  z-index: 2;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.brt-gallery-default-title {
  font-family: var(--font-heading, Oswald);
  font-size: 1.05rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: #FFFFFF;
  margin: 0 0 4px 0;
  line-height: 1.3;
}

.brt-gallery-hint {
  font-size: 11.5px;
  color: #F2B10A;
  font-weight: 600;
  display: block;
}

.brt-gallery-card-item:hover .brt-gallery-default-bar,
.brt-gallery-card-item.is-active .brt-gallery-default-bar {
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
}

/* Interactive Hover Overlay */
.brt-gallery-hover-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 22px;
  background: linear-gradient(0deg, rgba(8, 14, 26, 0.98) 0%, rgba(8, 14, 26, 0.92) 55%, rgba(8, 14, 26, 0.45) 85%, transparent 100%);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 4;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1), transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}

.brt-gallery-card-item:hover .brt-gallery-hover-overlay,
.brt-gallery-card-item.is-active .brt-gallery-hover-overlay {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.brt-gallery-hover-inner {
  display: flex;
  flex-direction: column;
}

.brt-gallery-hover-tag {
  color: #F2B10A;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
  display: block;
}

.brt-gallery-hover-title {
  font-family: var(--font-heading, Oswald);
  font-size: 1.15rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: #FFFFFF;
  margin-bottom: 8px;
  line-height: 1.3;
}

.brt-gallery-hover-caption {
  font-size: 0.85rem;
  line-height: 1.5;
  color: #CBD5E1;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.brt-gallery-specs-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.brt-gallery-spec-pill {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: #F8FAFC;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}

.brt-gallery-view-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #F2B10A;
  text-decoration: none;
  transition: all 0.2s ease;
}

.brt-gallery-view-link:hover {
  color: #FFFFFF;
  transform: translateX(3px);
}

/* Scroll Progress Bar */
.brt-gallery-progress-wrap {
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  overflow: hidden;
}

html[data-theme="light"] .brt-gallery-progress-wrap {
  background: #E2E8F0 !important;
}

.brt-gallery-progress-bar {
  height: 100%;
  width: 10%;
  background: linear-gradient(90deg, #F2B10A, #D97706);
  border-radius: 999px;
  transition: width 0.15s ease-out;
}

html[data-theme="light"] .brt-gallery-progress-bar {
  background: #0F172A !important;
}

.brt-scroll-icon {
  font-size: 18px;
  color: #F2B10A;
}

html[data-theme="light"] .brt-scroll-icon {
  color: #B45309 !important;
}

/* ==========================================================================
   IMAGE COPYRIGHT & ANTI-COPY PROTECTION SUITE
   Baskara Riau Teknik - Official Photography Protection
   ========================================================================== */
.brt-protected-media {
  position: relative;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}

.brt-protected-media img,
.brt-gallery-img,
img.brt-protected-img {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-user-drag: none;
  -khtml-user-drag: none;
  -moz-user-drag: none;
  -o-user-drag: none;
  user-drag: none;
  -webkit-touch-callout: none;
  pointer-events: none;
}

/* Transparent Shield Overlay (Absorbs clicks and blocks native context menu) */
.brt-image-shield {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  background: transparent;
  pointer-events: auto;
}

/* Luxury Copyright Toast Notification */
.brt-copyright-toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(30px);
  background: rgba(11, 21, 38, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(242, 177, 10, 0.5);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45), 0 0 24px rgba(242, 177, 10, 0.2);
  color: #FFFFFF;
  padding: 14px 20px;
  border-radius: 12px;
  z-index: 999999;
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: min(520px, calc(100vw - 32px));
  width: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1), transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}

.brt-copyright-toast.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.brt-copyright-toast__icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(242, 177, 10, 0.15);
  border: 1px solid rgba(242, 177, 10, 0.4);
  color: #F2B10A;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.brt-copyright-toast__body {
  flex: 1;
}

.brt-copyright-toast__title {
  font-family: var(--font-heading, Oswald);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #F2B10A;
  margin-bottom: 2px;
}

.brt-copyright-toast__text {
  font-size: 12px;
  line-height: 1.45;
  color: #CBD5E1;
  margin: 0;
}

html[data-theme="light"] .brt-copyright-toast {
  background: rgba(255, 255, 255, 0.98) !important;
  border: 1px solid #D97706 !important;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.2), 0 0 20px rgba(217, 119, 6, 0.15) !important;
  color: #0F172A !important;
}

html[data-theme="light"] .brt-copyright-toast__icon {
  background: rgba(217, 119, 6, 0.12) !important;
  border-color: rgba(217, 119, 6, 0.4) !important;
  color: #B45309 !important;
}

html[data-theme="light"] .brt-copyright-toast__title {
  color: #B45309 !important;
}

html[data-theme="light"] .brt-copyright-toast__text {
  color: #334155 !important;
}