/* ==========================================================================
   ENERGIZE — Gerakan Hemat Energi di Sekolah (ESD Project - Kelompok 5)
   Style System: Clean, Modern, Eco-Friendly, Responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS VARIABLES & DESIGN TOKENS
   -------------------------------------------------------------------------- */
:root {
  /* Brand Colors - Nature & Energy */
  --primary-900: #0d2818;
  --primary-800: #1b4332;
  --primary-700: #2d6a4f;
  --primary-600: #40916c;
  --primary-500: #52b788;
  --primary-400: #74c69d;
  --primary-300: #95d5b2;
  --primary-100: #d8f3dc;
  --primary-50: #ebfbee;

  /* Accent Colors - Solar Energy & Sun */
  --accent-600: #d97706;
  --accent-500: #f59e0b;
  --accent-400: #fbbf24;
  --accent-300: #fde68a;
  --accent-100: #fef3c7;
  --accent-50: #fffbeb;

  /* Neutral Colors */
  --bg-main: #f9fbf9;
  --bg-surface: #ffffff;
  --bg-surface-alt: #f1f6f2;
  --bg-card: #ffffff;
  
  --text-main: #132a13;
  --text-secondary: #4a5d4e;
  --text-muted: #728477;
  --text-light: #ffffff;

  --border-light: rgba(45, 106, 79, 0.12);
  --border-focus: rgba(64, 145, 108, 0.4);

  /* Elevation & Shadows */
  --shadow-sm: 0 2px 8px rgba(19, 42, 19, 0.04);
  --shadow-md: 0 8px 24px rgba(19, 42, 19, 0.08);
  --shadow-lg: 0 16px 36px rgba(19, 42, 19, 0.12);
  --shadow-glow: 0 0 25px rgba(82, 183, 136, 0.35);
  --shadow-amber: 0 8px 20px rgba(245, 158, 11, 0.25);

  /* Typography */
  --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Layout & Spacing */
  --container-max: 1200px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------------
   2. RESET & BASE STYLES
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--primary-900);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.015em;
}

p {
  color: var(--text-secondary);
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  outline: none;
}

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

ul, ol {
  list-style: none;
}

/* Accessibility Focus */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid var(--accent-500);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   3. LAYOUT & UTILITIES
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section {
  padding: 5.5rem 0;
  position: relative;
}

.section-bg-alt {
  background-color: var(--bg-surface-alt);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background-color: var(--primary-100);
  color: var(--primary-800);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.section-tag.accent {
  background-color: var(--accent-100);
  color: var(--accent-600);
}

.section-title {
  font-size: clamp(1.85rem, 3.2vw, 2.65rem);
  color: var(--primary-900);
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   4. BUTTONS & INTERACTIVE ELEMENTS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.85rem 1.75rem;
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-normal);
  text-decoration: none;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-700), var(--primary-600));
  color: var(--text-light);
  box-shadow: 0 4px 14px rgba(45, 106, 79, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-800), var(--primary-700));
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(45, 106, 79, 0.4);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--primary-800);
  border: 1.5px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  border-color: var(--primary-500);
  color: var(--primary-700);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent-500), var(--accent-600));
  color: var(--text-light);
  box-shadow: var(--shadow-amber);
}

.btn-accent:hover {
  background: linear-gradient(135deg, var(--accent-600), #b45309);
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(245, 158, 11, 0.35);
}

.btn-white {
  background-color: #ffffff;
  color: var(--primary-800);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
}

.btn-white:hover {
  background-color: var(--primary-50);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}

.btn-icon-right svg {
  transition: transform var(--transition-fast);
}

.btn:hover .btn-icon-right svg {
  transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   5. NAVIGATION BAR
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(249, 251, 249, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(45, 106, 79, 0.08);
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  background-color: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow-md);
  border-bottom-color: rgba(45, 106, 79, 0.12);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.75rem;
}

/* Brand Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--primary-800);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.brand-icon {
  width: 2.5rem;
  height: 2.5rem;
  background: linear-gradient(135deg, var(--primary-600), var(--primary-800));
  color: var(--accent-400);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(45, 106, 79, 0.25);
}

.brand-badge {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  background-color: var(--accent-100);
  color: var(--accent-600);
  border-radius: var(--radius-full);
  margin-left: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.6rem 1.1rem;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.nav-link:hover {
  color: var(--primary-700);
  background-color: var(--primary-50);
}

.nav-link.active {
  color: var(--primary-800);
  background-color: var(--primary-100);
  font-weight: 600;
}

.nav-tag-phase {
  font-size: 0.625rem;
  font-weight: 700;
  background-color: var(--accent-100);
  color: var(--accent-600);
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--accent-300);
}

/* Hamburger Toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 2rem;
  height: 1.4rem;
  cursor: pointer;
  background: transparent;
  border: none;
  padding: 0;
  z-index: 1001;
}

.mobile-toggle span {
  display: block;
  height: 2.5px;
  width: 100%;
  background-color: var(--primary-800);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.mobile-toggle.active span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}
.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}
.mobile-toggle.active span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   6. HERO SECTION
   -------------------------------------------------------------------------- */
.hero-section {
  padding: 4rem 0 6rem;
  position: relative;
  overflow: hidden;
}

.hero-glow-1 {
  position: absolute;
  top: -120px;
  right: -80px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(82, 183, 136, 0.22) 0%, rgba(249, 251, 249, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-glow-2 {
  position: absolute;
  bottom: 20px;
  left: -100px;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(251, 191, 36, 0.18) 0%, rgba(249, 251, 249, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 1.1rem;
  background: linear-gradient(135deg, var(--primary-100), #e1f7e7);
  border: 1px solid rgba(82, 183, 136, 0.35);
  border-radius: var(--radius-full);
  color: var(--primary-800);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 1.5rem;
  box-shadow: 0 2px 6px rgba(45, 106, 79, 0.08);
}

.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-500);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.7);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.7);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(245, 158, 11, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(245, 158, 11, 0);
  }
}

.hero-title {
  font-size: clamp(2.35rem, 4vw, 3.4rem);
  font-weight: 800;
  color: var(--primary-900);
  line-height: 1.18;
  margin-bottom: 1.35rem;
}

.hero-title .highlight {
  color: var(--primary-600);
  position: relative;
  display: inline-block;
}

.hero-title .highlight::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  width: 100%;
  height: 10px;
  background-color: var(--accent-300);
  opacity: 0.45;
  z-index: -1;
  border-radius: 4px;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2.25rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  flex-wrap: wrap;
}

/* Hero Visual Art */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.visual-canvas-card {
  width: 100%;
  background: linear-gradient(145deg, #ffffff, #f0f7f2);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(82, 183, 136, 0.25);
  position: relative;
  overflow: hidden;
}

.hero-svg-art {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 10px 18px rgba(19, 42, 19, 0.08));
  transition: transform var(--transition-slow);
}

.visual-canvas-card:hover .hero-svg-art {
  transform: scale(1.02);
}

/* Floating Eco Badges */
.floating-stat-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  padding: 0.75rem 1.15rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(82, 183, 136, 0.2);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 2;
  animation: float 4s ease-in-out infinite;
}

.stat-card-1 {
  top: 15px;
  left: -20px;
  animation-delay: 0s;
}

.stat-card-2 {
  bottom: 20px;
  right: -15px;
  animation-delay: 2s;
}

.stat-icon {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.stat-icon.green {
  background-color: var(--primary-100);
  color: var(--primary-700);
}

.stat-icon.yellow {
  background-color: var(--accent-100);
  color: var(--accent-600);
}

.stat-text strong {
  display: block;
  font-size: 0.875rem;
  color: var(--primary-900);
  font-weight: 700;
}

.stat-text span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-8px);
  }
}

/* --------------------------------------------------------------------------
   7. QUICK IMPACT / STATEMENT SECTION
   -------------------------------------------------------------------------- */
.statement-section {
  padding: 5rem 0;
  background: linear-gradient(180deg, var(--bg-main) 0%, var(--bg-surface-alt) 100%);
}

.statement-banner {
  background: linear-gradient(135deg, var(--primary-900), var(--primary-800));
  border-radius: var(--radius-xl);
  padding: 3.5rem 3rem;
  color: var(--text-light);
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin-bottom: 3.5rem;
}

.statement-banner::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: radial-gradient(circle at top right, rgba(82, 183, 136, 0.25), transparent 60%);
  pointer-events: none;
}

.statement-lead {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--accent-400);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.75rem;
  display: block;
}

.statement-quote {
  font-size: clamp(1.4rem, 2.5vw, 2.1rem);
  font-weight: 700;
  line-height: 1.35;
  color: #ffffff;
  max-width: 820px;
  margin: 0 auto;
}

.impact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.impact-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.85rem;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
}

.impact-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(64, 145, 108, 0.35);
}

.impact-icon-wrapper {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.4rem;
  transition: transform var(--transition-normal);
}

.impact-card:hover .impact-icon-wrapper {
  transform: scale(1.08) rotate(3deg);
}

.icon-emerald {
  background: linear-gradient(135deg, var(--primary-100), var(--primary-300));
  color: var(--primary-800);
}

.icon-amber {
  background: linear-gradient(135deg, var(--accent-100), var(--accent-300));
  color: var(--accent-600);
}

.icon-mint {
  background: linear-gradient(135deg, #d1fae5, #a7f3d0);
  color: #065f46;
}

.impact-title {
  font-size: 1.25rem;
  color: var(--primary-900);
  margin-bottom: 0.75rem;
}

.impact-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   8. WHY IT MATTERS SECTION
   -------------------------------------------------------------------------- */
.why-section {
  padding: 5.5rem 0;
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.why-content .section-tag {
  margin-bottom: 1rem;
}

.why-content h2 {
  font-size: clamp(1.85rem, 3vw, 2.5rem);
  margin-bottom: 1.35rem;
  color: var(--primary-900);
}

.why-lead-text {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.why-points-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.why-point-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background-color: var(--bg-surface);
  padding: 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  transition: all var(--transition-fast);
}

.why-point-item:hover {
  border-color: var(--primary-400);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}

.why-point-icon {
  width: 2.25rem;
  height: 2.25rem;
  min-width: 2.25rem;
  background-color: var(--primary-100);
  color: var(--primary-700);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 0.1rem;
}

.why-point-text strong {
  display: block;
  font-size: 1rem;
  color: var(--primary-900);
  margin-bottom: 0.2rem;
}

.why-point-text p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Why Visual Box */
.why-visual-box {
  background: linear-gradient(145deg, #1b4332, #0d2818);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  color: #ffffff;
  position: relative;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.why-visual-box::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.25), transparent 70%);
}

.why-box-title {
  color: #ffffff;
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}

.why-box-sub {
  color: var(--primary-300);
  font-size: 0.875rem;
  margin-bottom: 2rem;
}

.why-stats-cards {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.why-stat-row {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.15rem;
  backdrop-filter: blur(8px);
}

.why-stat-num {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--accent-400);
  line-height: 1;
}

.why-stat-info strong {
  display: block;
  font-size: 0.9375rem;
  color: #ffffff;
}

.why-stat-info span {
  font-size: 0.8125rem;
  color: var(--primary-300);
}

/* --------------------------------------------------------------------------
   9. SMALL HABITS SECTION
   -------------------------------------------------------------------------- */
.habits-section {
  padding: 5.5rem 0;
  background-color: var(--bg-surface-alt);
}

.habits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.habit-card {
  background-color: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.habit-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-500), var(--accent-400));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.habit-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(64, 145, 108, 0.3);
}

.habit-card:hover::before {
  opacity: 1;
}

.habit-number {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--primary-300);
}

.habit-icon {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: var(--radius-md);
  background-color: var(--primary-50);
  color: var(--primary-700);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.35rem;
  transition: all var(--transition-fast);
}

.habit-card:hover .habit-icon {
  background-color: var(--primary-600);
  color: #ffffff;
  transform: scale(1.05);
}

.habit-badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-600);
  background-color: var(--accent-50);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
  width: fit-content;
}

.habit-title {
  font-size: 1.125rem;
  color: var(--primary-900);
  margin-bottom: 0.65rem;
}

.habit-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* --------------------------------------------------------------------------
   10. TEASER SECTION (PHASE 2 & 3 ROADMAP)
   -------------------------------------------------------------------------- */
.teaser-section {
  padding: 5.5rem 0;
}

.teaser-card {
  background: linear-gradient(135deg, #1b4332 0%, #2d6a4f 100%);
  border-radius: var(--radius-xl);
  padding: 4rem 3.5rem;
  color: #ffffff;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.teaser-card::after {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.2), transparent 70%);
  pointer-events: none;
}

.teaser-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background-color: rgba(251, 191, 36, 0.2);
  border: 1px solid rgba(251, 191, 36, 0.4);
  color: var(--accent-300);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
}

.teaser-title {
  color: #ffffff;
  font-size: clamp(1.75rem, 2.8vw, 2.35rem);
  margin-bottom: 1rem;
}

.teaser-desc {
  color: var(--primary-100);
  font-size: 1.0625rem;
  line-height: 1.65;
  margin-bottom: 2rem;
}

.teaser-preview-box {
  background: rgba(255, 255, 255, 0.08);
  border: 1px dashed rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(10px);
  text-align: center;
}

.teaser-icon-graphic {
  width: 4rem;
  height: 4rem;
  margin: 0 auto 1rem;
  background: rgba(245, 158, 11, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-400);
}

.teaser-preview-title {
  color: #ffffff;
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.teaser-preview-subtitle {
  color: var(--primary-300);
  font-size: 0.85rem;
  line-height: 1.4;
}

/* --------------------------------------------------------------------------
   11. CALL TO ACTION (CTA) SECTION
   -------------------------------------------------------------------------- */
.cta-section {
  padding: 4rem 0 5.5rem;
}

.cta-box {
  background: linear-gradient(135deg, var(--primary-50), #d8f3dc);
  border: 1.5px solid rgba(82, 183, 136, 0.35);
  border-radius: var(--radius-xl);
  padding: 4.5rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.cta-title {
  font-size: clamp(2rem, 3.2vw, 2.65rem);
  color: var(--primary-900);
  margin-bottom: 0.85rem;
}

.cta-subtitle {
  font-size: 1.15rem;
  color: var(--primary-700);
  font-weight: 500;
  max-width: 580px;
  margin: 0 auto 2.25rem;
}

/* --------------------------------------------------------------------------
   12. ABOUT PAGE STYLES (tentang.html)
   -------------------------------------------------------------------------- */
.about-hero {
  padding: 4.5rem 0 4rem;
  background: linear-gradient(180deg, var(--bg-main) 0%, var(--bg-surface-alt) 100%);
  text-align: center;
}

.about-hero-content {
  max-width: 780px;
  margin: 0 auto;
}

.about-hero-title {
  font-size: clamp(2.2rem, 3.6vw, 3rem);
  color: var(--primary-900);
  margin-bottom: 1.25rem;
}

.about-hero-lead {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* Goals Section */
.goals-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.goal-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
}

.goal-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-400);
}

.goal-icon {
  width: 3.75rem;
  height: 3.75rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.goal-title {
  font-size: 1.25rem;
  color: var(--primary-900);
  margin-bottom: 0.75rem;
}

.goal-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Target Audience Section */
.target-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.target-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.85rem;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: all var(--transition-normal);
}

.target-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.target-avatar-icon {
  width: 4.5rem;
  height: 4.5rem;
  margin: 0 auto 1.35rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.target-title {
  font-size: 1.25rem;
  color: var(--primary-900);
  margin-bottom: 0.65rem;
}

.target-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Campaign Flow / Timeline Section */
.timeline-wrapper {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
}

.timeline-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  position: relative;
}

.timeline-grid::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 10%;
  right: 10%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-500), var(--accent-400), var(--primary-300));
  z-index: 0;
}

.timeline-step-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.5rem;
  box-shadow: var(--shadow-sm);
  position: relative;
  z-index: 1;
  text-align: center;
  transition: all var(--transition-normal);
}

.timeline-step-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.timeline-step-card.active-phase {
  border: 2px solid var(--primary-600);
  box-shadow: 0 8px 24px rgba(64, 145, 108, 0.15);
}

.step-badge-circle {
  width: 3.5rem;
  height: 3.5rem;
  margin: 0 auto 1.25rem;
  border-radius: 50%;
  background: var(--primary-100);
  color: var(--primary-800);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 6px var(--bg-surface);
}

.timeline-step-card.active-phase .step-badge-circle {
  background: linear-gradient(135deg, var(--primary-700), var(--primary-600));
  color: #ffffff;
}

.step-phase-status {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-current {
  background-color: var(--primary-100);
  color: var(--primary-800);
}

.status-upcoming {
  background-color: var(--accent-100);
  color: var(--accent-600);
}

.step-title {
  font-size: 1.15rem;
  color: var(--primary-900);
  margin-bottom: 0.65rem;
}

.step-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Team Section */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.team-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.team-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-400);
}

.team-avatar {
  width: 5rem;
  height: 5rem;
  margin: 0 auto 1.35rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-100), #e1f7e7);
  border: 2px solid var(--primary-400);
  color: var(--primary-800);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
  box-shadow: var(--shadow-sm);
}

.team-name {
  font-size: 1.2rem;
  color: var(--primary-900);
  margin-bottom: 0.35rem;
}

.team-role {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary-600);
  background-color: var(--primary-50);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: 0.75rem;
}

.team-badge {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   13. FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--primary-900);
  color: var(--primary-100);
  padding: 4.5rem 0 2rem;
  position: relative;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr;
  gap: 3.5rem;
  margin-bottom: 3.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .brand-logo {
  color: #ffffff;
  margin-bottom: 1rem;
}

.footer-tagline {
  color: var(--primary-300);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
  max-width: 320px;
}

.footer-team-info strong {
  display: block;
  font-size: 0.9rem;
  color: #ffffff;
  margin-bottom: 0.35rem;
}

.footer-team-info p {
  color: var(--primary-300);
  font-size: 0.85rem;
  line-height: 1.6;
}

.footer-heading {
  color: #ffffff;
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  color: var(--primary-300);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.footer-link:hover {
  color: var(--accent-400);
  transform: translateX(4px);
}

.footer-esd-badge {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.footer-esd-badge strong {
  display: block;
  color: var(--accent-400);
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
}

.footer-esd-badge p {
  color: var(--primary-300);
  font-size: 0.8125rem;
  line-height: 1.5;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--primary-400);
  flex-wrap: wrap;
  gap: 1rem;
}

/* --------------------------------------------------------------------------
   14. MODAL & TOAST NOTIFICATION (PHASE 2 & 3 TEASER)
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(13, 40, 24, 0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background-color: var(--bg-surface);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  max-width: 480px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  position: relative;
  text-align: center;
  transform: scale(0.92);
  transition: transform var(--transition-slow);
}

.modal-overlay.active .modal-dialog {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background-color: var(--bg-surface-alt);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background-color: var(--primary-100);
  color: var(--primary-800);
}

.modal-icon-badge {
  width: 4.5rem;
  height: 4.5rem;
  border-radius: 50%;
  background-color: var(--accent-100);
  color: var(--accent-600);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
}

.modal-title {
  font-size: 1.45rem;
  color: var(--primary-900);
  margin-bottom: 0.65rem;
}

.modal-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.75rem;
}

/* Back To Top Button */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 3rem;
  height: 3rem;
  background-color: var(--primary-700);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  z-index: 990;
  opacity: 0;
  visibility: hidden;
  transform: translateY(15px);
  transition: all var(--transition-normal);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: var(--primary-800);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* --------------------------------------------------------------------------
   15. ANIMATIONS & SCROLL REVEAL
   -------------------------------------------------------------------------- */
.fade-in-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-up.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   16. RESPONSIVE BREAKPOINTS
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    max-width: 520px;
    margin: 0 auto;
  }

  .why-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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

  .teaser-card {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 3rem 2rem;
  }

  .teaser-badge {
    margin: 0 auto 1.25rem;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }

  .footer-esd-badge {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 4rem 0;
  }

  .nav-menu {
    position: fixed;
    top: 4.75rem;
    left: 0;
    right: 0;
    background-color: #ffffff;
    flex-direction: column;
    padding: 2rem 1.5rem;
    gap: 1rem;
    box-shadow: var(--shadow-lg);
    border-bottom: 1px solid var(--border-light);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-slow);
    z-index: 999;
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    width: 100%;
    justify-content: center;
    padding: 0.85rem 1.25rem;
  }

  .mobile-toggle {
    display: flex;
  }

  .impact-grid,
  .goals-grid,
  .target-grid,
  .timeline-grid,
  .team-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .timeline-grid::before {
    display: none;
  }

  .habits-grid {
    grid-template-columns: 1fr;
  }

  .statement-banner {
    padding: 2.5rem 1.5rem;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-esd-badge {
    grid-column: span 1;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 0.5rem;
  }

  .stat-card-1 {
    left: 0;
    top: 5px;
  }

  .stat-card-2 {
    right: 0;
    bottom: 5px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }

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

  .hero-actions .btn {
    width: 100%;
  }

  .btn {
    width: 100%;
  }

  .floating-stat-card {
    position: static;
    margin-top: 1rem;
    width: 100%;
    animation: none;
  }
}