/* ==========================================================================
   BETU SUSTAINABILITY - PHÁT TRIỂN BỀN VỮNG
   Trường Đại học Kinh tế - Kỹ thuật Bình Dương (BETU)
   Landing Page Stylesheet - Modern Academic & Eco-Green Aesthetics
   ========================================================================== */

:root {
  /* Official BETU Brand Colors (ktkt.edu.vn) */
  --betu-blue: #1a3c6a;           /* BETU Academic Navy Blue (Chủ đạo) */
  --betu-blue-dark: #102644;
  --betu-blue-darker: #0b1a30;
  --betu-blue-light: #285592;
  --betu-blue-soft: #edf4fc;
  
  --betu-cyan: #0082c3;           /* BETU Ocean / Cerulean Blue */
  --betu-cyan-light: #54c6d3;
  --betu-cyan-soft: #e5f5fb;

  --betu-yellow: #f1b61c;         /* BETU Golden Yellow (Điểm nhấn nhận diện) */
  --betu-yellow-dark: #d49a0a;
  --betu-yellow-soft: #fef8e7;

  --betu-green: #38b349;          /* BETU Eco-Green */
  --betu-green-dark: #2c933b;
  --betu-green-soft: #edf9ef;

  --betu-red: #d72027;            /* BETU Brand Red */

  /* Main Core Colors */
  --primary: #1a3c6a;             /* BETU Navy Blue chủ đạo */
  --primary-dark: #102644;
  --primary-darker: #0b1a30;
  --primary-light: #0082c3;
  --primary-soft: #edf4fc;
  --primary-gradient: linear-gradient(135deg, #1a3c6a 0%, #0082c3 100%);
  
  --secondary: #0082c3;           /* BETU Ocean Blue */
  --secondary-dark: #1a3c6a;
  --secondary-light: #54c6d3;
  --secondary-soft: #e5f5fb;
  --secondary-gradient: linear-gradient(135deg, #0082c3 0%, #54c6d3 100%);

  --accent-gold: #f1b61c;
  --accent-amber: #d49a0a;
  --accent-green: #38b349;
  --accent-teal: #0082c3;
  --accent-cyan: #54c6d3;

  /* Neutral Shades */
  --bg-main: #f8fafc;
  --bg-white: #ffffff;
  --bg-dark: #102644;
  --bg-surface: #f1f5f9;
  
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-light: #94a3b8;
  --text-white: #ffffff;

  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  --border-focus: #0082c3;

  /* Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 2px 8px -2px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 8px 24px -4px rgba(15, 23, 42, 0.08), 0 4px 8px -4px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 16px 36px -6px rgba(15, 23, 42, 0.12), 0 8px 16px -6px rgba(15, 23, 42, 0.06);
  --shadow-xl: 0 25px 50px -12px rgba(15, 23, 42, 0.18);
  --shadow-hover: 0 20px 40px -10px rgba(5, 150, 105, 0.22);
  --shadow-blue-hover: 0 20px 40px -10px rgba(30, 58, 138, 0.25);

  /* Typography - Arial */
  --font-heading: 'Arial', Helvetica, sans-serif;
  --font-body: 'Arial', Helvetica, sans-serif;

  /* Official UN SDG Colors */
  --sdg-01: #E5243B;
  --sdg-02: #DDA63A;
  --sdg-03: #4C9F38;
  --sdg-04: #C5192D;
  --sdg-05: #FF3A21;
  --sdg-06: #26BDE2;
  --sdg-07: #FCC30B;
  --sdg-08: #A21942;
  --sdg-09: #FD6925;
  --sdg-10: #DD1367;
  --sdg-11: #FD9D24;
  --sdg-12: #BF8B2E;
  --sdg-13: #3F7E44;
  --sdg-14: #0A97D9;
  --sdg-15: #56C02B;
  --sdg-16: #00689D;
  --sdg-17: #19486A;

  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text-main);
  background-color: var(--bg-main);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6,
strong, b,
.fw-bold, .fw-bolder {
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700 !important;
  line-height: 1.25;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

button, input, select, textarea {
  font-family: Arial, Helvetica, sans-serif;
}

a,
a:hover,
a:focus,
a:active,
a:visited {
  text-decoration: none !important;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover {
  color: var(--primary-dark);
  text-decoration: none !important;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.section-padding {
  padding: 85px 0;
}

@media (max-width: 768px) {
  .section-padding {
    padding: 55px 0;
  }
}

/* ==========================================================================
   TOP BAR & HEADER (BETU Ocean Blue #0082c3)
   ========================================================================== */
.betu-topbar {
  background: var(--betu-cyan);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  overflow: hidden;
}

.betu-topbar a {
  color: #ffffff;
  text-decoration: none;
  transition: var(--transition-fast);
}

.betu-topbar a:hover {
  color: var(--betu-yellow);
}

.betu-topbar-divider {
  display: inline-block;
  width: 1px;
  height: 11px;
  background: rgba(255, 255, 255, 0.4);
  margin: 0 16px;
  vertical-align: middle;
}

/* Ticker Marquee Wrapper (Chạy chữ ngang mượt mà) */
.betu-topbar-ticker-wrapper {
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  flex: 1 1 auto;
  min-width: 0;
  mask-image: linear-gradient(to right, transparent, black 16px, black calc(100% - 16px), transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 16px, black calc(100% - 16px), transparent);
}

.betu-topbar-marquee {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  animation: topbarMarqueeScroll 35s linear infinite;
  will-change: transform;
}

.betu-topbar-marquee:hover {
  animation-play-state: paused;
}

.betu-topbar-marquee-content {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  flex-shrink: 0;
}

@keyframes topbarMarqueeScroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* Nút Về BETU (Nền đỏ chữ trắng theo nhận diện thương hiệu BETU) */
.btn-topbar-betu {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: #d72027; /* Đỏ thương hiệu BETU */
  color: #ffffff !important;
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 4px 14px;
  border-radius: 50px;
  box-shadow: 0 2px 6px rgba(215, 32, 39, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.25);
  transition: all 0.25s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn-topbar-betu:hover {
  background-color: #b5151c;
  color: #ffffff !important;
  box-shadow: 0 4px 10px rgba(215, 32, 39, 0.5);
  transform: translateY(-1px);
}

@media (max-width: 576px) {
  .btn-topbar-betu {
    padding: 3px 10px;
    font-size: 0.68rem;
  }
  .betu-topbar {
    font-size: 0.72rem;
  }
}

/* Main Navigation - BETU Academic Navy Theme with Brand Golden Accent */
.betu-navbar {
  background: linear-gradient(180deg, #1a3c6a 0%, #122c50 100%);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 3px solid var(--betu-yellow); /* Chỉ vàng nhận diện BETU */
  padding: 10px 0;
  position: sticky;
  top: 0;
  z-index: 1030;
  transition: var(--transition-normal);
}

.betu-navbar.is-scrolled {
  box-shadow: 0 8px 25px rgba(26, 60, 106, 0.4);
  padding: 8px 0;
  background: rgba(26, 60, 106, 0.98);
}

.navbar-brand-wrapper {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-logo-img {
  height: 48px;
  max-width: 290px;
  width: auto;
  object-fit: contain;
}

.brand-divider-v {
  width: 1.5px;
  height: 36px;
  background-color: rgba(255, 255, 255, 0.25);
  margin: 0 2px;
}

.brand-title-group {
  display: flex;
  flex-direction: column;
}

.brand-subhead {
  font-family: Arial, Helvetica, sans-serif !important;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--betu-yellow); /* Vàng BETU */
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.brand-maintitle {
  font-family: Arial, Helvetica, sans-serif !important;
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0;
  display: flex;
  align-items: center;
  gap: 6px;
}

.brand-badge-pill {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(241, 182, 28, 0.2);
  color: var(--betu-yellow);
  border: 1px solid rgba(241, 182, 28, 0.4);
  text-transform: uppercase;
}

.betu-navbar .navbar-nav .nav-item {
  display: flex;
  align-items: center;
  margin: 0 !important;
  padding: 0 !important;
}

.nav-link.sustainability-navlink {
  font-family: 'Plus Jakarta Sans', sans-serif !important;
  font-weight: 700 !important;
  font-size: 0.9rem !important;
  line-height: 1.5 !important;
  color: rgba(255, 255, 255, 0.95) !important;
  padding: 8px 14px !important;
  margin: 0 !important;
  border-radius: 6px;
  transition: var(--transition-fast);
  position: relative;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  display: inline-flex !important;
  align-items: center !important;
  vertical-align: middle;
  gap: 8px;
  box-sizing: border-box;
}

.nav-link.sustainability-navlink i {
  font-size: 0.92rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--betu-yellow);
  transition: var(--transition-fast);
}

.nav-link.sustainability-navlink:hover,
.nav-link.sustainability-navlink.active {
  color: var(--betu-yellow) !important;
  background-color: rgba(255, 255, 255, 0.1);
  margin: 0 !important;
  line-height: 1.5 !important;
}

.nav-link.sustainability-navlink.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 3px;
  background: var(--betu-yellow);
  border-radius: 2px;
}

.btn-header-cta {
  background: var(--primary-gradient);
  color: #fff !important;
  font-weight: 700;
  font-size: 0.88rem;
  padding: 8px 18px;
  border-radius: 999px;
  box-shadow: 0 4px 14px rgba(5, 150, 105, 0.35);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-fast);
  border: none;
}

.btn-header-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(5, 150, 105, 0.45);
}

/* ==========================================================================
   HERO BANNER (BETU Academic Blue & Gold)
   ========================================================================== */
.hero-sustainability {
  position: relative;
  min-height: 560px;
  background: var(--betu-blue);
  display: flex;
  align-items: center;
  color: #ffffff;
  overflow: hidden;
  padding: 60px 0 60px;
}

.hero-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(135deg, rgba(26, 60, 106, 0.95) 0%, rgba(0, 130, 195, 0.88) 100%),
    url('../images/betu-school.jpg');
  background-size: cover;
  background-position: center center;
  filter: saturate(1.1);
  transform: scale(1.02);
  transition: transform 10s ease;
}

.hero-content-wrapper {
  position: relative;
  z-index: 2;
}

.hero-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(241, 182, 28, 0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(241, 182, 28, 0.45);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--betu-yellow);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.hero-title {
  font-family: Arial, Helvetica, sans-serif !important;
  font-size: 2.85rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.25;
  margin-bottom: 18px;
  letter-spacing: 0;
}

.hero-title .text-gradient-green,
.text-gradient-green {
  color: #ffffff !important;
  background: none !important;
  -webkit-background-clip: unset !important;
  -webkit-text-fill-color: #ffffff !important;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.92);
  max-width: 680px;
  margin-bottom: 32px;
  font-weight: 400;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn-hero-primary {
  background: linear-gradient(135deg, #e3262d 0%, var(--betu-red) 100%);
  color: #ffffff !important;
  font-weight: 700;
  font-size: 0.98rem;
  padding: 13px 26px;
  border-radius: 10px;
  border: none;
  box-shadow: 0 6px 20px rgba(215, 32, 39, 0.4);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: var(--transition-fast);
}

.btn-hero-primary:hover {
  background: #ffffff;
  color: var(--betu-red) !important;
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(215, 32, 39, 0.5);
}

.btn-hero-secondary {
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.98rem;
  padding: 13px 24px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: var(--transition-fast);
}

.btn-hero-secondary:hover {
  background: #ffffff;
  color: #1a3c6a;
  border-color: #ffffff;
  transform: translateY(-2px);
}

/* Hero Highlights Graphic */
.hero-graphic-card {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  padding: 28px;
  color: #fff;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.35);
}

.hero-sdg-mini-wheel {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
  margin-top: 15px;
}

.hero-sdg-mini-item {
  aspect-ratio: 1;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 2px 6px rgba(0,0,0,0.25);
  transition: var(--transition-fast);
  cursor: pointer;
}

.hero-sdg-mini-item:hover {
  transform: scale(1.18);
  z-index: 5;
  box-shadow: 0 6px 14px rgba(0,0,0,0.4);
}

/* ==========================================================================
   STATS COUNTERS BAR (QUICK NUMBERS)
   ========================================================================== */
.sustainability-stats-bar {
  margin-top: -55px;
  position: relative;
  z-index: 10;
}

.stats-card-container {
  background: var(--bg-white);
  border-radius: 16px;
  padding: 28px 24px;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 8px 16px;
  border-right: 1px solid var(--border-color);
}

.stats-card-container .row > div:last-child .stat-item,
.stat-item:last-child {
  border-right: none;
}

.stat-icon-box {
  width: 54px;
  height: 54px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.stat-icon-box.green {
  background: #ecfdf5;
  color: var(--primary);
}

.stat-icon-box.blue {
  background: #eff6ff;
  color: #2563eb;
}

.stat-icon-box.amber {
  background: #fffbeb;
  color: var(--accent-amber);
}

.stat-icon-box.purple {
  background: #faf5ff;
  color: #9333ea;
}

.stat-info .stat-number {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--text-main);
  display: flex;
  align-items: baseline;
}

.stat-info .stat-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 2px;
}

@media (max-width: 991px) {
  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding: 12px 6px;
  }
  .stats-card-container .row > div:last-child .stat-item,
  .stat-item:last-child {
    border-bottom: none;
  }
  .hero-title {
    font-size: 2.15rem;
  }
}

/* ==========================================================================
   SECTION HEADERS & FILTER CONTROLS
   ========================================================================== */
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #ecfdf5;
  color: var(--primary-dark);
  border: 1px solid #a7f3d0;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.section-badge.blue {
  background: #eff6ff;
  color: #1d4ed8;
  border-color: #bfdbfe;
}

.section-badge.amber {
  background: #fffbeb;
  color: #b45309;
  border-color: #fde68a;
}

.section-badge.purple {
  background: #faf5ff;
  color: #7e22ce;
  border-color: #e9d5ff;
}

.section-title {
  font-family: Arial, Helvetica, sans-serif !important;
  font-size: 2.15rem;
  font-weight: 700;
  color: var(--betu-red);
  letter-spacing: 0;
  margin-bottom: 18px;
  position: relative;
  display: inline-block;
  padding-bottom: 14px;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 76px;
  height: 4px;
  background: linear-gradient(90deg, var(--betu-red) 0%, #ea580c 60%, #f59e0b 100%);
  border-radius: 999px;
  box-shadow: 0 2px 8px rgba(215, 32, 39, 0.35);
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 760px;
  margin: 0 auto 30px;
}

/* Filter Controls Toolbar */
.filter-toolbar {
  background: #ffffff;
  border-radius: 12px;
  padding: 12px 18px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  margin-bottom: 35px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
}

.filter-pills-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.btn-filter-pill {
  border: 1px solid var(--border-color);
  background: #ffffff;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  transition: var(--transition-fast);
  cursor: pointer;
}

.btn-filter-pill:hover {
  background: var(--bg-surface);
  color: var(--text-main);
  border-color: #cbd5e1;
}

.btn-filter-pill.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(5, 150, 105, 0.3);
}

.search-input-box {
  position: relative;
  min-width: 260px;
}

.search-input-box input {
  width: 100%;
  padding: 8px 14px 8px 38px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  font-size: 0.88rem;
  background: #ffffff;
  transition: var(--transition-fast);
}

.search-input-box input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

.search-input-box .search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-light);
  font-size: 0.85rem;
  pointer-events: none;
}

/* ==========================================================================
   SECTION A: 17 SDGs (MỤC TIÊU PHÁT TRIỂN BỀN VỮNG)
   ========================================================================== */
#sdgs {
  background-color: #f8fafc;
}

.sdg-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.sdg-card {
  background: #ffffff;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
}

.sdg-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--card-color, var(--primary));
}

.sdg-card-thumb-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background: #0f172a;
  cursor: pointer;
}

.sdg-card-thumb-link {
  display: block;
  width: 100%;
  height: 100%;
  cursor: pointer;
  text-decoration: none;
}

.sdg-card-thumb-wrap img,
.sdg-card-thumb-link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.sdg-card:hover .sdg-card-thumb-wrap img,
.sdg-card:hover .sdg-card-thumb-link img {
  transform: scale(1.06);
}

.sdg-badge-number {
  position: absolute;
  top: 14px;
  left: 14px;
  background: #ffffff !important;
  color: var(--card-color, #0f172a) !important;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 8px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  z-index: 2;
  border: 1px solid rgba(255, 255, 255, 0.9);
  /* Hiệu ứng 3D khối nổi đậm chất: gờ vát trên, bóng khối đáy 3D và ambient drop-shadow */
  box-shadow: 
    0 4px 0 #cbd5e1, 
    0 8px 16px rgba(0, 0, 0, 0.35),
    inset 0 1.5px 0 #ffffff;
  transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
  transform: translateZ(0);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.sdg-card:hover .sdg-badge-number {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 
    0 7px 0 #94a3b8, 
    0 14px 24px rgba(0, 0, 0, 0.45),
    inset 0 1.5px 0 #ffffff;
}

.sdg-card-body {
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}


.sdg-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-main);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 2.7em;
}

.sdg-card-title-link {
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: color 0.2s ease;
}

.sdg-card:hover .sdg-card-title-link,
.sdg-card-title-link:hover {
  color: var(--card-color, var(--primary));
  text-decoration: none;
}

.sdg-card-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex-grow: 1;
}

.sdg-card-footer {
  padding-top: 12px;
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sdg-article-count {
  font-size: 0.78rem;
  color: var(--text-light);
  font-weight: 600;
}

.btn-sdg-view {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--card-color, var(--primary));
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: transparent;
  border: none;
  padding: 4px 8px;
  border-radius: 6px;
  transition: var(--transition-fast);
  cursor: pointer;
}

.btn-sdg-view:hover {
  background: var(--bg-surface);
  color: var(--text-main);
}

/* ==========================================================================
   SECTION B: 20 CHÍNH SÁCH PHÁT TRIỂN BỀN VỮNG
   ========================================================================== */
#chinh-sach {
  background-color: #ffffff;
}

.policy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 22px;
}

.policy-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 22px;
  box-shadow: var(--shadow-xs);
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  border-left: 4px solid var(--primary);
}

.policy-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: #cbd5e1;
  border-left-color: var(--primary);
}

.policy-card.cat-moi-truong { border-left-color: #059669; }
.policy-card.cat-dao-tao { border-left-color: #2563eb; }
.policy-card.cat-quan-tri { border-left-color: #7c3aed; }
.policy-card.cat-xa-hoi { border-left-color: #db2777; }
.policy-card.cat-nang-luong { border-left-color: #d97706; }

.policy-header-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.policy-code-pill {
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  background: #f1f5f9;
  color: #334155;
  letter-spacing: 0.05em;
}

.policy-tag-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  background: #ecfdf5;
  color: var(--primary-dark);
}

.policy-title {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 10px;
  color: var(--text-main);
}

.policy-title-link {
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: color 0.2s ease;
}

.policy-card:hover .policy-title-link,
.policy-title-link:hover {
  color: var(--primary);
  text-decoration: none;
}

.policy-excerpt {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.policy-meta-info {
  font-size: 0.78rem;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.policy-footer-action {
  padding-top: 12px;
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.btn-read-policy {
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--primary);
  background: transparent;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 6px;
  transition: var(--transition-fast);
}

.btn-read-policy:hover {
  background: #f1f5f9;
  color: var(--betu-red);
  transform: translateX(3px);
}

/* ==========================================================================
   SECTION C: 30 QUY TRÌNH - QUY ĐỊNH
   ========================================================================== */
#quy-dinh {
  background-color: #f8fafc;
}

.regulation-table-wrapper {
  background: #ffffff;
  border-radius: 14px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.table-custom-regulations {
  width: 100%;
  margin-bottom: 0;
  border-collapse: separate;
  border-spacing: 0;
}

.table-custom-regulations thead th {
  background: #f1f5f9;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #475569;
  padding: 14px 18px;
  border-bottom: 2px solid var(--border-color);
  border-top: none;
}

.table-custom-regulations tbody td {
  padding: 14px 18px;
  vertical-align: middle;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.88rem;
}

.table-custom-regulations tbody tr:last-child td {
  border-bottom: none;
}

.table-custom-regulations tbody tr:hover td {
  background-color: #f8fafc;
}

.reg-code-badge {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 6px;
  background: #eff6ff;
  color: #1d4ed8;
  display: inline-block;
  white-space: nowrap;
}

.reg-title-cell {
  font-weight: 600;
  color: var(--text-main);
}

.reg-title-link {
  color: var(--text-main);
  text-decoration: none;
  font-weight: 600;
  display: inline-block;
  cursor: pointer;
  transition: all 0.2s ease;
}

.reg-title-link:hover,
.table-custom-regulations tbody tr:hover .reg-title-link {
  color: var(--primary);
  text-decoration: none;
}

.reg-dept-badge {
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 999px;
  background: #f1f5f9;
  color: #475569;
  font-weight: 600;
  white-space: nowrap;
}

.reg-status-badge {
  font-size: 0.72rem;
  padding: 3px 8px;
  border-radius: 6px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.reg-status-badge.active {
  background: #ecfdf5;
  color: #047857;
}

.btn-view-reg {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  color: var(--primary);
  font-size: 0.84rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 8px;
  transition: var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-view-reg:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
  transform: translateX(2px);
  box-shadow: var(--shadow-xs);
}

/* ==========================================================================
   SECTION D: 17 BÁO CÁO PHÁT TRIỂN BỀN VỮNG
   ========================================================================== */
#bao-cao {
  background-color: #ffffff;
}

.report-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 24px;
}

.report-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.04);
  transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
  display: flex;
  flex-direction: column;
}

.report-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.09);
  border-color: #cbd5e1;
}

.report-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.report-title {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.45;
  margin-bottom: 12px;
}

.report-title-link {
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: color 0.2s ease;
}

.report-card:hover .report-title-link,
.report-title-link:hover {
  color: var(--primary);
  text-decoration: none;
}

.report-summary-text {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.report-card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid #f1f5f9;
  margin-top: auto;
}

.btn-read-report {
  background: transparent;
  border: none;
  color: var(--primary);
  font-size: 0.88rem;
  font-weight: 700;
  padding: 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-fast);
}

.btn-read-report:hover {
  color: var(--betu-red);
  transform: translateX(4px);
}

.btn-download-pdf {
  background: #fef2f2;
  color: #b91c1c;
  border: 1px solid #fee2e2;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 13px;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-fast);
}

.btn-download-pdf:hover {
  background: #dc2626;
  color: #ffffff;
  border-color: #dc2626;
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.25);
  transform: translateY(-2px);
}

/* ==========================================================================
   CALL TO ACTION & GREEN INITIATIVE BOX
   ========================================================================== */
/* ==========================================================================
   CALL TO ACTION & GREEN INITIATIVE BOX
   ========================================================================== */
.sustainability-cta-section {
  background: linear-gradient(135deg, #1a3c6a 0%, #0082c3 100%);
  color: #ffffff;
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}

.cta-box-card {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.3);
}

.cta-box-title {
  font-size: 2rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 14px;
}

.cta-box-desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 24px;
  max-width: 650px;
}

/* ==========================================================================
   FOOTER (BETU Official Brand Navy with Wave Accents)
   ========================================================================== */
.betu-footer {
  background-color: #193867;
  color: #e2e8f0;
  padding-top: 55px;
  padding-bottom: 0;
  position: relative;
  overflow: hidden;
  font-size: 0.9rem;
  border-top: none;
}

.footer-wave-wrap {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

.footer-wave-svg {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 220px;
  display: block;
}

.footer-brand-wrap {
  padding-top: 10px;
}

.footer-logo-img {
  max-height: 85px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.25));
}

.footer-sustainability-brand {
  margin-top: 18px;
  display: inline-block;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.07);
  border-left: 3.5px solid #38b349;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  border-right: 1px solid rgba(255, 255, 255, 0.12);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 0 12px 12px 0;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}

.footer-sustainability-brand:hover {
  background: rgba(255, 255, 255, 0.12);
  border-left-color: var(--betu-yellow);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.3);
}

.f-sust-name {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.96rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #ffffff;
  line-height: 1.25;
  text-transform: uppercase;
}

.f-sust-sub {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--betu-yellow);
  text-transform: uppercase;
  margin-top: 3px;
  line-height: 1.2;
  display: flex;
  align-items: center;
  gap: 6px;
}

.f-sust-sub i {
  color: #38b349;
  font-size: 0.8rem;
}

.footer-block-heading {
  color: #ffffff;
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 22px;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.footer-contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 13px;
  font-size: 0.88rem;
  color: #ffffff;
  line-height: 1.5;
}

.footer-contact-list li i {
  font-size: 1.05rem;
  color: #ffffff;
  width: 22px;
  margin-top: 2px;
  text-align: center;
  flex-shrink: 0;
  opacity: 0.95;
}

.footer-contact-list li a {
  color: #ffffff !important;
  text-decoration: none !important;
  transition: color 0.2s ease;
}

.footer-contact-list li a:hover {
  color: #f1b61c !important;
  text-decoration: none !important;
}

.footer-nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-nav-list li {
  margin-bottom: 10px;
}

.footer-nav-list li a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #ffffff !important;
  font-size: 0.88rem;
  text-decoration: none !important;
  transition: all 0.2s ease;
}

.footer-nav-list li a i {
  font-size: 0.72rem;
  color: #ffffff;
  transition: transform 0.2s ease, color 0.2s ease;
}

.footer-nav-list li a:hover {
  color: #f1b61c !important;
  transform: translateX(4px);
  text-decoration: none !important;
}

.footer-nav-list li a:hover i {
  color: #f1b61c;
}

.betu-bottom-bar {
  background-color: rgba(14, 32, 60, 0.92);
  color: #cbd5e1;
  padding: 16px 0;
  margin-top: 45px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.82rem;
  position: relative;
  z-index: 2;
}

/* ==========================================================================
   MODAL & BACK TO TOP
   ========================================================================== */
.modal-content.custom-preview-modal {
  border-radius: 18px;
  border: 1px solid var(--border-color);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  overflow: hidden;
}

.modal-header.custom-preview-header {
  background: linear-gradient(135deg, #1a3c6a 0%, #0082c3 100%);
  color: #ffffff;
  padding: 20px 26px;
  border-bottom: none;
}

.btn-close-white-custom {
  filter: invert(1) grayscale(100%) brightness(200%);
}

.modal-body.custom-preview-body {
  padding: 26px;
  font-size: 0.95rem;
  line-height: 1.7;
}

#btn-back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--primary);
  color: #ffffff;
  border: none;
  box-shadow: 0 6px 18px rgba(5, 150, 105, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  cursor: pointer;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
}

#btn-back-to-top.show {
  opacity: 1;
  visibility: visible;
}

#btn-back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 10px 22px rgba(5, 150, 105, 0.5);
}

/* Utilities */
.text-emerald { color: var(--primary) !important; }
.bg-emerald-soft { background-color: var(--primary-soft) !important; }
.no-results-msg {
  padding: 40px;
  text-align: center;
  background: #ffffff;
  border-radius: 12px;
  border: 1px dashed var(--border-color);
  color: var(--text-muted);
  grid-column: 1 / -1;
}

/* ==========================================================================
   COMPREHENSIVE MOBILE RESPONSIVE OPTIMIZATIONS
   ========================================================================== */

/* Tablet & Mobile Landscape (< 992px) */
@media (max-width: 991.98px) {
  .betu-navbar {
    padding: 10px 0;
  }

  .betu-navbar .navbar-collapse {
    background: linear-gradient(145deg, rgba(26, 60, 106, 0.88) 0%, rgba(0, 130, 195, 0.82) 100%);
    backdrop-filter: blur(18px) saturate(180%);
    -webkit-backdrop-filter: blur(18px) saturate(180%);
    border-radius: 18px;
    padding: 16px 14px;
    margin-top: 14px;
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-top: 1px solid rgba(255, 255, 255, 0.45);
    box-shadow: 0 20px 45px rgba(10, 35, 75, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.25);
  }

  .betu-navbar .navbar-nav {
    display: flex !important;
    flex-direction: column !important;
    width: 100% !important;
    gap: 0 !important;
    margin: 8px 0 !important;
  }

  .betu-navbar .navbar-nav .nav-item {
    width: 100% !important;
    display: block !important;
  }

  .betu-navbar .nav-link.sustainability-navlink {
    color: #ffffff !important;
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    text-decoration: none !important;
    padding: 14px 18px !important;
    border-radius: 12px;
    display: flex !important;
    width: 100% !important;
    justify-content: flex-start !important;
    align-items: center !important;
    gap: 14px;
    background: transparent;
    border: none !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15) !important;
    margin-bottom: 0;
    transition: all 0.25s ease;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
    box-sizing: border-box;
  }

  .betu-navbar .nav-link.sustainability-navlink i {
    font-size: 1.15rem;
    width: 26px;
    text-align: center;
    color: var(--betu-yellow);
    flex-shrink: 0;
  }

  .betu-navbar .nav-link.sustainability-navlink .nav-text {
    flex: 1 1 auto;
    display: inline;
    white-space: normal;
    text-align: left;
    line-height: 1.4;
  }

  .betu-navbar .nav-item:last-child .nav-link.sustainability-navlink {
    border-bottom: none !important;
  }

  .betu-navbar .nav-link.sustainability-navlink:hover {
    background: rgba(255, 255, 255, 0.12) !important;
    color: var(--betu-yellow) !important;
    text-decoration: none !important;
    padding-left: 22px !important;
  }

  .betu-navbar .nav-link.sustainability-navlink.active {
    background: rgba(255, 255, 255, 0.2) !important;
    color: #ffffff !important;
    text-decoration: none !important;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.35), 0 4px 12px rgba(0, 0, 0, 0.15);
    border-bottom: 1px solid rgba(255, 255, 255, 0.15) !important;
  }

  .betu-navbar .nav-item:last-child .nav-link.sustainability-navlink.active {
    border-bottom: none !important;
  }

  .betu-navbar .nav-link.sustainability-navlink.active i {
    color: var(--betu-yellow);
  }

  .betu-navbar .nav-link.sustainability-navlink.active::after {
    display: none !important;
  }

  .betu-navbar .btn-header-cta {
    width: 100%;
    justify-content: center;
    margin-top: 14px;
    padding: 12px 20px;
    font-size: 0.95rem;
  }

  .hero-sustainability {
    min-height: auto;
    padding: 55px 0 85px;
  }

  .hero-graphic-card {
    margin-top: 35px;
  }

  .sdg-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

/* Mobile Devices (< 768px) */
@media (max-width: 767.98px) {
  .section-padding {
    padding: 45px 0;
  }

  .hero-sustainability {
    padding: 40px 0 75px;
  }

  .hero-title {
    font-size: 1.85rem !important;
    line-height: 1.25;
    margin-bottom: 14px;
  }

  .hero-subtitle {
    font-size: 0.92rem;
    margin-bottom: 22px;
  }

  .hero-pill-badge {
    font-size: 0.72rem;
    padding: 4px 12px;
    margin-bottom: 15px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
    gap: 10px;
  }

  .hero-actions a {
    width: 100%;
    justify-content: center;
    text-align: center;
    padding: 11px 18px;
    font-size: 0.92rem;
  }

  .hero-graphic-card {
    padding: 18px 16px;
    border-radius: 16px;
  }

  .hero-sdg-mini-wheel {
    grid-template-columns: repeat(6, 1fr);
    gap: 5px;
  }

  /* Stats Bar on Mobile */
  .sustainability-stats-bar {
    margin-top: -35px;
  }

  .stats-card-container {
    padding: 14px 12px;
    border-radius: 14px;
  }

  .stat-item {
    padding: 10px 4px;
    gap: 12px;
  }

  .stat-icon-box {
    width: 44px;
    height: 44px;
    font-size: 1.2rem;
    border-radius: 10px;
  }

  .stat-info .stat-number {
    font-size: 1.55rem;
  }

  .stat-info .stat-label {
    font-size: 0.75rem;
  }

  /* Section Headers & Filter Toolbar */
  .section-title {
    font-size: 1.6rem !important;
    line-height: 1.25;
  }

  .section-desc {
    font-size: 0.9rem;
    margin-bottom: 20px;
  }

  .filter-toolbar {
    padding: 10px 12px;
    border-radius: 10px;
    gap: 10px;
  }

  .filter-pills-group {
    width: 100%;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 6px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .filter-pills-group::-webkit-scrollbar {
    display: none;
  }

  .btn-filter-pill {
    flex-shrink: 0;
    white-space: nowrap;
    font-size: 0.78rem;
    padding: 5px 12px;
  }

  .search-input-box {
    width: 100%;
    min-width: 100%;
  }

  .search-input-box input {
    font-size: 0.84rem;
    padding: 8px 12px 8px 34px;
  }

  /* Card Grids */
  .sdg-grid,
  .policy-grid,
  .report-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* Regulations Table to Native Mobile Cards */
  .regulation-table-wrapper {
    background: transparent;
    border: none;
    box-shadow: none;
  }

  .table-custom-regulations thead {
    display: none;
  }

  .table-custom-regulations,
  .table-custom-regulations tbody {
    display: block;
    width: 100%;
  }

  .table-custom-regulations tr {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 10px;
    padding: 12px 14px;
    box-shadow: var(--shadow-xs);
  }

  .table-custom-regulations td {
    padding: 0 !important;
    border: none !important;
  }

  .table-custom-regulations td.reg-title-cell,
  .table-custom-regulations td:first-child {
    flex: 1;
    min-width: 0;
    margin-bottom: 0 !important;
    font-size: 0.92rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--text-main);
  }

  .table-custom-regulations td:last-child {
    flex-shrink: 0;
    margin-top: 0 !important;
    padding-top: 0 !important;
    border-top: none !important;
    display: flex;
    align-items: center;
  }

  .table-custom-regulations .btn-view-reg {
    width: auto;
    white-space: nowrap;
    padding: 6px 12px;
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
  }

  /* Reports Card Actions */
  .report-card-actions {
    flex-direction: column;
    gap: 8px;
  }

  .btn-read-report,
  .btn-download-pdf {
    width: 100%;
    justify-content: center;
  }

  /* CTA Section & Footer */
  .cta-box-card {
    padding: 22px 18px;
    border-radius: 16px;
  }

  .cta-box-title {
    font-size: 1.35rem;
  }

  .cta-box-desc {
    font-size: 0.88rem;
    margin-bottom: 18px;
  }

  #form-green-initiative button {
    width: 100%;
    justify-content: center;
    padding: 10px;
  }

  .betu-footer {
    padding-top: 45px;
  }

  #btn-back-to-top {
    bottom: 16px;
    right: 16px;
    width: 42px;
    height: 42px;
    font-size: 1rem;
  }
}

/* Extra Small Mobile (< 576px) */
@media (max-width: 575.98px) {
  .brand-logo-img {
    height: 38px;
    max-width: 190px;
  }

  .brand-divider-v {
    display: none !important;
  }

  .brand-title-group {
    display: none !important;
  }
}

/* ==========================================================================
   VIEW MORE ACTIONS FOR SIMPLIFIED SECTIONS
   ========================================================================== */
.section-view-more-box {
  text-align: center;
  margin-top: 36px;
  padding-top: 15px;
}

.btn-view-all-sustainability {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 32px;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: 999px;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
  text-decoration: none;
}

.btn-view-all-sustainability.primary {
  background: linear-gradient(135deg, #1a3c6a 0%, #0082c3 100%);
  color: #ffffff;
  border: 1px solid #1a3c6a;
}

.btn-view-all-sustainability.primary:hover {
  background: linear-gradient(135deg, #102644 0%, #1a3c6a 100%);
  color: #f1b61c;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(26, 60, 106, 0.35);
}

.btn-view-all-sustainability.emerald {
  background: linear-gradient(135deg, #0082c3 0%, #38b349 100%);
  color: #ffffff;
  border: 1px solid #0082c3;
}

.btn-view-all-sustainability.emerald:hover {
  background: linear-gradient(135deg, #1a3c6a 0%, #0082c3 100%);
  color: #f1b61c;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 130, 195, 0.35);
}

@media (max-width: 575.98px) {
  .btn-view-all-sustainability {
    width: 100%;
    padding: 12px 18px;
    font-size: 0.88rem;
  }
}

/* ==========================================================================
   16. DETAIL PAGE (CHI-TIET.HTML) STYLES
   ========================================================================== */
.detail-page-wrapper {
  background-color: #f8fafd;
  padding: 40px 0 80px;
}

/* Left Sidebar */
.detail-sidebar {
  position: sticky;
  top: 90px;
  z-index: 5;
}

@media (max-width: 991.98px) {
  .detail-sidebar {
    position: static;
    margin-top: 30px;
  }
}

.sidebar-card {
  background: #ffffff;
  border-radius: 14px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 4px 20px rgba(0, 40, 100, 0.05);
  overflow: hidden;
  margin-bottom: 24px;
}

.sidebar-header {
  background: linear-gradient(135deg, #1a3c6a 0%, #0082c3 100%) !important;
  color: #ffffff !important;
  padding: 14px 18px !important;
  font-weight: 700;
  font-size: 1.05rem;
  display: flex !important;
  align-items: center !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15) !important;
}

.sidebar-header .sidebar-title,
.sidebar-title {
  color: #ffffff !important;
  font-size: 1.05rem !important;
  font-weight: 700 !important;
  margin: 0 !important;
  padding: 0 !important;
  line-height: 1.35 !important;
  display: flex !important;
  align-items: center !important;
  gap: 10px !important;
  letter-spacing: 0.01em !important;
}

.sidebar-header .sidebar-title i,
.sidebar-title i {
  color: #ffffff !important;
  font-size: 1.15rem !important;
  opacity: 0.95;
}

.sidebar-search-box {
  padding: 14px 18px;
  background: #f8fafc;
  border-bottom: 1px solid #edf2f7;
}

.sidebar-search-box .input-group-text {
  background: #ffffff;
  border-right: none;
  border-color: #cbd5e1;
  color: #64748b;
}

.sidebar-search-box .form-control {
  border-left: none;
  border-color: #cbd5e1;
  font-size: 0.88rem;
}

.sidebar-search-box .form-control:focus {
  border-color: #0082c3;
  box-shadow: none;
}

.sidebar-accordion .accordion-item {
  border: none;
  border-bottom: 1px solid #edf2f7;
}

.sidebar-accordion .accordion-item:last-child {
  border-bottom: none;
}

.sidebar-accordion .accordion-button {
  padding: 13px 18px;
  font-size: 0.94rem;
  font-weight: 700;
  color: #1a3c6a;
  background-color: #ffffff;
  box-shadow: none !important;
}

.sidebar-accordion .accordion-button:not(.collapsed) {
  background-color: #f0f7ff;
  color: #0082c3;
}

.sidebar-accordion .accordion-button::after {
  background-size: 0.85rem;
}

.sidebar-accordion .accordion-body {
  padding: 0;
}

.sidebar-article-list {
  list-style: none;
  padding: 0;
  margin: 0;
  max-height: 380px;
  overflow-y: auto;
}

/* Custom Scrollbar */
.sidebar-article-list::-webkit-scrollbar {
  width: 5px;
}
.sidebar-article-list::-webkit-scrollbar-track {
  background: #f1f5f9;
}
.sidebar-article-list::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}
.sidebar-article-list::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

.sidebar-article-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 18px;
  font-size: 0.88rem;
  color: #334155;
  text-decoration: none !important;
  border-bottom: 1px solid #f8fafc;
  transition: all 0.2s ease;
  line-height: 1.45;
}

.sidebar-article-item::before {
  content: '\25AA';
  color: #94a3b8;
  font-size: 0.9rem;
  flex-shrink: 0;
  margin-top: -1px;
  transition: color 0.2s ease;
}

.sidebar-article-item:hover {
  background: #f0f7ff;
  color: #0082c3;
  padding-left: 22px;
}

.sidebar-article-item:hover::before {
  color: #dc2626;
}

.sidebar-article-item.active::before {
  color: #dc2626 !important;
}

.sidebar-article-item.active {
  background: #fef2f2 !important;
  color: #dc2626 !important;
  font-weight: 700 !important;
  border-left: 4px solid #dc2626 !important;
  padding-left: 18px !important;
}

.sidebar-article-item.active span {
  color: #dc2626 !important;
}

/* Sidebar Contact Widget */
.sidebar-widget {
  background: #ffffff;
  border-radius: 14px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 4px 20px rgba(0, 40, 100, 0.05);
  padding: 20px;
}

.sidebar-widget-title {
  font-size: 1rem;
  font-weight: 700;
  color: #1a3c6a;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-widget-list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.88rem;
  color: #475569;
}

.sidebar-widget-list li {
  margin-bottom: 10px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.sidebar-widget-list li i {
  color: #0082c3;
  margin-top: 3px;
  flex-shrink: 0;
}

/* Article Main Card */
.article-main-card {
  background: #ffffff;
  border-radius: 16px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 4px 24px rgba(0, 40, 100, 0.06);
  padding: 40px 44px;
}

@media (max-width: 767.98px) {
  .article-main-card {
    padding: 24px 20px;
  }
}

.article-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid #edf2f7;
}

.article-meta-badge {
  font-size: 0.82rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 20px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-meta-badge.category-regulation {
  background: rgba(0, 130, 195, 0.12);
  color: #0082c3;
}

.article-meta-badge.category-policy {
  background: rgba(56, 179, 73, 0.12);
  color: #2e8b57;
}

.article-meta-badge.category-sdg {
  background: rgba(241, 182, 28, 0.16);
  color: #b78103;
}

.article-meta-badge.category-report {
  background: rgba(215, 32, 39, 0.12);
  color: #d72027;
}

.article-meta-info {
  font-size: 0.88rem;
  color: #64748b;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-title {
  font-size: 2.15rem;
  font-weight: 700;
  color: #1a3c6a;
  line-height: 1.35;
  margin-bottom: 20px;
  font-family: Arial, Helvetica, sans-serif;
}

@media (max-width: 767.98px) {
  .article-title {
    font-size: 1.6rem;
  }
}

.article-lead-box {
  background: #f8fafc;
  border-left: 4px solid #f1b61c;
  padding: 18px 22px;
  border-radius: 0 10px 10px 0;
  margin-bottom: 28px;
  font-size: 1.05rem;
  line-height: 1.65;
  color: #334155;
  font-weight: 500;
}

.article-body {
  color: #334155;
  font-size: 1rem;
  line-height: 1.8;
}

.article-body h2,
.article-body h3,
.article-body h4 {
  color: #1a3c6a;
  font-weight: 700;
  margin-top: 32px;
  margin-bottom: 16px;
  font-family: Arial, Helvetica, sans-serif;
}

.article-body h2 {
  font-size: 1.45rem;
  border-bottom: 2px solid #eef2f6;
  padding-bottom: 8px;
}

.article-body h3 {
  font-size: 1.25rem;
}

.article-body p {
  margin-bottom: 16px;
}

.article-body img {
  display: block;
  margin-left: auto;
  margin-right: auto;
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

.article-body .sdg-slogan,
p.sdg-slogan,
.sdg-slogan {
  text-align: center !important;
  font-size: 1.15rem;
  color: #1a3c6a;
  margin-top: 14px;
  margin-bottom: 24px;
  display: block;
}

.article-body ul,
.article-body ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.article-body li {
  margin-bottom: 8px;
}

/* Callout Box */
.article-callout {
  background: #eff6ff;
  border-radius: 10px;
  border-left: 4px solid #0082c3;
  padding: 16px 20px;
  margin: 24px 0;
  color: #1e3a8a;
}

.article-callout-title {
  font-weight: 700;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Data Table inside Article */
.article-table-responsive {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid #e2e8f0;
  margin: 24px 0;
}

.article-table {
  margin-bottom: 0;
  width: 100%;
}

.article-table thead th {
  background: #1a3c6a;
  color: #ffffff;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 12px 16px;
  border: none;
}

.article-table tbody td {
  padding: 12px 16px;
  font-size: 0.9rem;
  color: #334155;
  border-top: 1px solid #edf2f7;
}

.article-table tbody tr:nth-child(even) {
  background-color: #f8fafc;
}

/* Attachment File Section */
.article-attachment-card {
  background: linear-gradient(135deg, #f8fafc 0%, #edf5ff 100%);
  border: 1.5px solid #cbd5e1;
  border-radius: 12px;
  padding: 20px 24px;
  margin: 36px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
}

.attachment-info-group {
  display: flex;
  align-items: center;
  gap: 16px;
}

.attachment-icon {
  width: 50px;
  height: 50px;
  border-radius: 10px;
  background: rgba(215, 32, 39, 0.1);
  color: #d72027;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  flex-shrink: 0;
}

.attachment-name {
  font-weight: 700;
  font-size: 1rem;
  color: #1a3c6a;
  margin-bottom: 0;
  word-break: break-word;
}

.attachment-meta {
  font-size: 0.82rem;
  color: #64748b;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.attachment-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.btn-attachment-download {
  background: #d72027;
  color: #ffffff !important;
  font-weight: 700;
  font-size: 0.88rem;
  padding: 9px 18px;
  border-radius: 8px;
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
  text-decoration: none !important;
}

.btn-attachment-download:hover {
  background: #b5151c;
  color: #ffffff !important;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(215, 32, 39, 0.35);
}

.btn-attachment-view {
  background: #ffffff;
  color: #0082c3 !important;
  font-weight: 700;
  font-size: 0.88rem;
  padding: 9px 18px;
  border-radius: 8px;
  border: 1px solid #0082c3;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
  text-decoration: none !important;
}

.btn-attachment-view:hover {
  background: #0082c3;
  color: #ffffff !important;
  transform: translateY(-2px);
}

/* Related Articles Section */
.article-related-section {
  margin-top: 48px;
  padding-top: 36px;
  border-top: 2px dashed #e2e8f0;
}

.related-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}

.related-section-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: #1a3c6a;
  margin-bottom: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Article Figure & Responsive Image */
.article-figure {
  margin: 30px 0;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid #e2e8f0;
  background: #ffffff;
  box-shadow: 0 4px 18px rgba(0, 40, 100, 0.05);
}

.article-figure img {
  width: 100%;
  height: auto;
  max-height: 440px;
  object-fit: cover;
  display: block;
}

.article-figure figcaption {
  padding: 12px 20px;
  font-size: 0.88rem;
  color: #64748b;
  text-align: center;
  background: #f8fafc;
  border-top: 1px solid #edf2f7;
  font-style: italic;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

@media (max-width: 575.98px) {
  .related-grid {
    grid-template-columns: 1fr;
  }
}

.related-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 20px;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

.related-card:hover {
  border-color: #0082c3;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 130, 195, 0.12);
}

.related-card-code {
  font-size: 0.78rem;
  font-weight: 700;
  color: #0082c3;
  background: rgba(0, 130, 195, 0.08);
  padding: 3px 8px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 10px;
}

.related-card-title {
  font-size: 0.98rem;
  font-weight: 700;
  color: #1a3c6a;
  line-height: 1.45;
  margin-bottom: 10px;
  transition: color 0.2s ease;
}

.related-card:hover .related-card-title {
  color: #0082c3;
}

.related-card-desc {
  font-size: 0.85rem;
  color: #64748b;
  line-height: 1.5;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  font-size: 0.82rem;
  color: #94a3b8;
  padding-top: 12px;
  border-top: 1px solid #f1f5f9;
}

.related-card-link {
  font-weight: 700;
  color: #0082c3 !important;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  text-decoration: none !important;
}

.related-card-link:hover {
  color: #1a3c6a !important;
}