*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --blue-50: #eff6ff;
  --blue-100: #dbeafe;
  --blue-200: #bfdbfe;
  --blue-400: #60a5fa;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --blue-900: #1e3a8a;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-400: #9ca3af;
  --gray-600: #4b5563;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --white: #ffffff;
  --text: #111827;
  --text-muted: #6b7280;
}

/* ─── DARK THEME VARIABLES ─── */
.dark-theme {
  --white: #0f172a;         /* Deep slate-900 background */
  --gray-50: #1e293b;       /* Slate-800 for offset background */
  --gray-100: #334155;      /* Slate-700 for borders */
  --gray-200: #475569;      /* Slate-600 */
  --gray-400: #94a3b8;      /* Slate-400 */
  --gray-600: #cbd5e1;      /* Slate-300 */
  --gray-800: #f1f5f9;      /* Slate-100 */
  --gray-900: #f8fafc;      /* Slate-50 */
  
  --text: #f8fafc;          /* Slate-50 */
  --text-muted: #94a3b8;    /* Slate-400 */
  
  --blue-50: #1e3a8a;       /* Deepest blue-900 */
  --blue-100: #172554;      /* Deepest blue-950 */
  --blue-200: #2563eb;      /* Vibrant blue-600 */
  --blue-400: #60a5fa;      /* Sky blue-400 */
  --blue-500: #3b82f6;      /* Blue-500 */
  --blue-600: #3b82f6;      /* Blue-500 */
  --blue-700: #60a5fa;      /* Sky blue-400 */
  --blue-900: #1d4ed8;      /* Blue-700 */
}

/* Theme Toggle Button */
.theme-toggle-btn {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 50%;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.05rem;
  color: var(--text);
  transition: all 0.2s ease;
  user-select: none;
  padding: 0;
  margin-left: auto;
  margin-right: 1.5rem;
  z-index: 201;
}

.theme-toggle-btn:hover {
  background: var(--gray-100);
  border-color: var(--blue-400);
  transform: scale(1.05);
}

.theme-toggle-btn:active {
  transform: scale(0.95);
}

/* Specific Dark Mode Overrides */
.dark-theme nav {
  background: rgba(15, 23, 42, 0.9);
  border-bottom-color: var(--gray-100);
}

.dark-theme .mobile-menu {
  background: rgba(15, 23, 42, 0.98);
  border-bottom-color: var(--gray-100);
}
.dark-theme .mobile-menu a {
  border-bottom-color: var(--gray-100);
}

.dark-theme .hero-bg-dots {
  opacity: 0.15;
}

/* Division Cards Special styling in dark theme */
.dark-theme .cyber .dc-icon { background: rgba(59, 130, 246, 0.15); color: #60a5fa; }
.dark-theme .net .dc-icon { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.dark-theme .ai .dc-icon { background: rgba(139, 92, 246, 0.15); color: #a78bfa; }

.dark-theme .cyber .dc-tag { color: #60a5fa; border-color: rgba(59, 130, 246, 0.3); background: rgba(59, 130, 246, 0.1); }
.dark-theme .net .dc-tag { color: #34d399; border-color: rgba(16, 185, 129, 0.3); background: rgba(16, 185, 129, 0.1); }
.dark-theme .ai .dc-tag { color: #a78bfa; border-color: rgba(139, 92, 246, 0.3); background: rgba(139, 92, 246, 0.1); }

.dark-theme .cyber .dc-btn { background: rgba(59, 130, 246, 0.15); color: #60a5fa; }
.dark-theme .cyber .dc-btn:hover { background: rgba(59, 130, 246, 0.25); }
.dark-theme .net .dc-btn { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.dark-theme .net .dc-btn:hover { background: rgba(16, 185, 129, 0.25); }
.dark-theme .ai .dc-btn { background: rgba(139, 92, 246, 0.15); color: #a78bfa; }
.dark-theme .ai .dc-btn:hover { background: rgba(139, 92, 246, 0.25); }

/* Kegiatan Badges */
.dark-theme .kg-type.webinar { background: rgba(59, 130, 246, 0.15); color: #60a5fa; }
.dark-theme .kg-type.workshop { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.dark-theme .kg-type.meetup { background: rgba(249, 115, 22, 0.15); color: #fb923c; }
.dark-theme .kg-type.ctf { background: rgba(139, 92, 246, 0.15); color: #a78bfa; }

/* Materi */
.dark-theme .gdrive-logo-icon { background: var(--gray-100); }
.dark-theme .materi-badge { background: rgba(16, 185, 129, 0.15); color: #34d399; }

/* Course thumbnails */
.dark-theme .course-thumb.c1 { background: linear-gradient(135deg, #1e3a8a, #0f172a); }
.dark-theme .course-thumb.c2 { background: linear-gradient(135deg, #064e3b, #0f172a); }
.dark-theme .course-thumb.c3 { background: linear-gradient(135deg, #4c1d95, #0f172a); }
.dark-theme .course-thumb.c4 { background: linear-gradient(135deg, #7c2d12, #0f172a); }
.dark-theme .course-thumb.c5 { background: linear-gradient(135deg, #831843, #0f172a); }
.dark-theme .course-thumb.c6 { background: linear-gradient(135deg, #065f46, #0f172a); }

.dark-theme .level-beginner { color: #34d399; }
.dark-theme .level-intermediate { color: #fbbf24; }
.dark-theme .level-advanced { color: #f87171; }

.dark-theme .course-price {
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ─── NAV ─── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 6%; height: 68px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--gray-100);
}

.nav-logo {
  font-family: 'DM Serif Display', serif;
  font-size: 1.15rem; color: var(--blue-700);
  letter-spacing: -0.3px; text-decoration: none;
  display: flex;
  align-items: center;
}
.nav-logo-img {
  height: 95px;
  width: auto;
  object-fit: contain;
  transition: transform 0.2s ease;
}
.nav-logo-img:hover {
  transform: scale(1.03);
}
.nav-logo span { color: var(--gray-400); font-family: 'DM Sans', sans-serif; font-size: 0.75rem; font-weight: 400; margin-left: 6px; }

.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a {
  font-size: 0.875rem; font-weight: 500;
  color: var(--text-muted); text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--blue-600); }

.nav-cta {
  background: var(--blue-600); color: #fff;
  border: none; padding: 0.5rem 1.25rem;
  border-radius: 8px; font-family: 'DM Sans', sans-serif;
  font-size: 0.875rem; font-weight: 600; cursor: pointer;
  transition: background 0.2s;
}
.nav-cta:hover { background: var(--blue-700); }

/* ─── HERO ─── */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 8rem 6% 5rem;
  background: var(--white);
  position: relative; overflow: hidden;
}

.hero-bg-dots {
  position: absolute; inset: 0; z-index: 0;
  background-image: radial-gradient(circle, var(--blue-200) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.4;
  mask-image: radial-gradient(ellipse 70% 80% at 80% 50%, black 20%, transparent 80%);
}

.hero-content { position: relative; z-index: 1; max-width: 520px; flex-shrink: 0; }
.hero-image {
  position: relative; z-index: 1;
  flex: 1; display: flex; align-items: center; justify-content: center;
  min-width: 0;
}
.hero-image img {
  width: 100%; max-width: 520px;
  border-radius: 20px;
  object-fit: cover;
  box-shadow: 0 24px 64px rgba(37,99,235,0.12);
}

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.78rem; font-weight: 600;
  color: var(--blue-600); letter-spacing: 1.5px; text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.hero-eyebrow::before {
  content: ''; display: block;
  width: 24px; height: 2px; background: var(--blue-500);
}

.hero h1 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(2.6rem, 5vw, 4.2rem);
  line-height: 1.1; letter-spacing: -1.5px;
  color: var(--gray-900);
  margin-bottom: 1.5rem;
}
.hero h1 em { font-style: normal; color: var(--blue-600); }

.hero p {
  font-size: 1.05rem; color: var(--text-muted);
  max-width: 480px; margin-bottom: 2.5rem; line-height: 1.75;
}

.hero-btns { display: flex; gap: 0.75rem; flex-wrap: wrap; }

.btn-blue {
  background: var(--blue-600); color: #fff;
  padding: 0.75rem 1.75rem; border-radius: 10px;
  font-size: 0.9rem; font-weight: 600; border: none;
  cursor: pointer; text-decoration: none; display: inline-block;
  transition: all 0.2s;
}
.btn-blue:hover { background: var(--blue-700); transform: translateY(-1px); }

.btn-outline {
  background: transparent; color: var(--blue-600);
  padding: 0.75rem 1.75rem; border-radius: 10px;
  font-size: 0.9rem; font-weight: 600;
  border: 1.5px solid var(--blue-200);
  cursor: pointer; text-decoration: none; display: inline-block;
  transition: all 0.2s;
}
.btn-outline:hover { border-color: var(--blue-400); background: var(--blue-50); }

.hero-numbers {
  display: flex; gap: 2.5rem; margin-top: 3.5rem;
  padding-top: 2rem; border-top: 1px solid var(--gray-100);
}
.num-item {}
.num-val {
  font-family: 'DM Serif Display', serif;
  font-size: 2rem; color: var(--gray-900); line-height: 1;
}
.num-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }

/* ─── SHARED ─── */
section { padding: 6rem 6%; }

.section-label {
  font-size: 0.75rem; font-weight: 600; letter-spacing: 2px;
  text-transform: uppercase; color: var(--blue-500);
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 0.75rem;
}
.section-label::after {
  content: ''; flex: 1; max-width: 32px;
  height: 1.5px; background: var(--blue-300);
}

.section-title {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(1.9rem, 3vw, 2.6rem);
  letter-spacing: -0.8px; color: var(--gray-900);
  margin-bottom: 0.75rem; line-height: 1.2;
}

.section-sub { font-size: 1rem; color: var(--text-muted); max-width: 500px; }

.section-head { margin-bottom: 3.5rem; }

/* ─── ABOUT ─── */
.about { background: var(--gray-50); }

.about-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 5rem; align-items: center;
}

.about-text p {
  font-size: 0.95rem; color: var(--text-muted);
  line-height: 1.8; margin-bottom: 1rem;
}

.about-values {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
  margin-top: 1.5rem;
}
.value-item {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: 12px; padding: 1.1rem;
  transition: border-color 0.2s;
}
.value-item:hover { border-color: var(--blue-300); }
.value-icon { font-size: 1.25rem; margin-bottom: 0.5rem; }
.value-name { font-size: 0.875rem; font-weight: 600; color: var(--gray-800); }
.value-desc { font-size: 0.78rem; color: var(--text-muted); margin-top: 2px; }

.about-visual {
  background: var(--blue-600); border-radius: 20px;
  padding: 2.5rem; color: white; position: relative; overflow: hidden;
}
.about-visual::before {
  content: '';
  position: absolute; top: -40px; right: -40px;
  width: 180px; height: 180px;
  background: rgba(255,255,255,0.06); border-radius: 50%;
}
.about-visual::after {
  content: '';
  position: absolute; bottom: -60px; left: -30px;
  width: 220px; height: 220px;
  background: rgba(255,255,255,0.04); border-radius: 50%;
}
.about-visual h3 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.5rem; margin-bottom: 1.5rem;
  position: relative; z-index: 1;
}
.divisi-list { list-style: none; display: flex; flex-direction: column; gap: 0.85rem; position: relative; z-index: 1; }
.divisi-item {
  display: flex; align-items: center; gap: 12px;
  background: rgba(255,255,255,0.1); border-radius: 10px;
  padding: 0.9rem 1rem;
}
.divisi-dot {
  width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0;
}
.divisi-item p { font-size: 0.9rem; font-weight: 600; }
.divisi-item small { font-size: 0.75rem; opacity: 0.7; display: block; }

/* ─── DIVISI ─── */
.divisi-cards {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem;
}

.divisi-card {
  border: 1.5px solid var(--gray-200); border-radius: 16px;
  padding: 2rem; background: var(--white);
  transition: all 0.25s; position: relative; overflow: hidden;
}
.divisi-card::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0; height: 3px;
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.3s;
}
.divisi-card.cyber::after { background: #3b82f6; }
.divisi-card.net::after { background: #10b981; }
.divisi-card.ai::after { background: #8b5cf6; }
.divisi-card:hover { border-color: var(--blue-200); transform: translateY(-3px); box-shadow: 0 12px 32px rgba(37,99,235,0.08); }
.divisi-card:hover::after { transform: scaleX(1); }

.dc-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; margin-bottom: 1.25rem;
}
.cyber .dc-icon { background: #eff6ff; }
.net .dc-icon { background: #ecfdf5; }
.ai .dc-icon { background: #f5f3ff; }

.divisi-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; color: var(--gray-900); }
.divisi-card > p { font-size: 0.875rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 1.25rem; }

.dc-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1.5rem; }
.dc-tag {
  font-size: 0.72rem; font-weight: 500; padding: 0.25rem 0.65rem;
  border-radius: 100px; border: 1px solid;
}
.cyber .dc-tag { color: var(--blue-600); border-color: var(--blue-200); background: var(--blue-50); }
.net .dc-tag { color: #059669; border-color: #a7f3d0; background: #ecfdf5; }
.ai .dc-tag { color: #7c3aed; border-color: #ddd6fe; background: #f5f3ff; }

.dc-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 1.25rem; border-top: 1px solid var(--gray-100);
}
.dc-members { font-size: 0.8rem; color: var(--text-muted); }
.dc-members strong { color: var(--gray-800); }

.dc-btn {
  font-size: 0.8rem; font-weight: 600; cursor: pointer;
  padding: 0.35rem 0.9rem; border-radius: 6px; border: none;
  font-family: 'DM Sans', sans-serif; transition: all 0.2s;
}
.cyber .dc-btn { background: var(--blue-50); color: var(--blue-600); }
.cyber .dc-btn:hover { background: var(--blue-100); }
.net .dc-btn { background: #ecfdf5; color: #059669; }
.net .dc-btn:hover { background: #d1fae5; }
.ai .dc-btn { background: #f5f3ff; color: #7c3aed; }
.ai .dc-btn:hover { background: #ede9fe; }

/* ─── KEGIATAN ─── */
.kegiatan { background: var(--gray-50); }

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

.kegiatan-card {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: 14px; padding: 1.5rem;
  display: flex; gap: 1.25rem; align-items: flex-start;
  transition: all 0.2s;
}
.kegiatan-card:hover { border-color: var(--blue-200); box-shadow: 0 4px 20px rgba(37,99,235,0.07); }

.kg-date {
  background: var(--blue-600); color: white;
  border-radius: 10px; padding: 0.6rem 0.75rem;
  text-align: center; flex-shrink: 0; min-width: 52px;
}
.kg-date .day { font-family: 'DM Serif Display', serif; font-size: 1.4rem; line-height: 1; }
.kg-date .month { font-size: 0.65rem; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; opacity: 0.85; margin-top: 2px; }

.kg-info {}
.kg-type {
  display: inline-block; font-size: 0.68rem; font-weight: 600;
  padding: 0.2rem 0.6rem; border-radius: 100px;
  letter-spacing: 0.5px; margin-bottom: 0.4rem;
}
.kg-type.webinar { background: var(--blue-50); color: var(--blue-600); }
.kg-type.workshop { background: #ecfdf5; color: #059669; }
.kg-type.meetup { background: #fff7ed; color: #c2410c; }
.kg-type.ctf { background: #f5f3ff; color: #7c3aed; }

.kegiatan-card h4 { font-size: 0.95rem; font-weight: 600; color: var(--gray-900); margin-bottom: 0.35rem; line-height: 1.4; }
.kegiatan-card p { font-size: 0.82rem; color: var(--text-muted); line-height: 1.6; }
.kg-meta { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.5rem; }

/* ─── COURSE ─── */
.course-container {
  max-width: 960px;
  margin: 0 auto;
}

.course-promo-card {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  background: radial-gradient(circle at top right, var(--blue-900), #0f172a);
  border-radius: 24px;
  overflow: hidden;
  color: white;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
}

.course-promo-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 30px 60px rgba(37, 99, 235, 0.25);
  border-color: rgba(96, 165, 250, 0.3);
}

.course-promo-left {
  padding: 3.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.course-promo-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #93c5fd;
  background: rgba(147, 197, 253, 0.1);
  border: 1px solid rgba(147, 197, 253, 0.2);
  padding: 0.35rem 0.9rem;
  border-radius: 100px;
  width: fit-content;
}

.course-promo-left h3 {
  font-family: 'DM Serif Display', serif;
  font-size: 2.2rem;
  color: white;
  line-height: 1.2;
}

.course-promo-left p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.8;
}

.course-perks {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin: 0.5rem 0;
}

.course-perk-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.95);
}

.course-perk-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(59, 130, 246, 0.2);
  border: 1px solid rgba(59, 130, 246, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: #60a5fa;
}

.course-promo-btn {
  margin-top: 1.5rem;
  background: var(--blue-600);
  color: white;
  padding: 0.9rem 2.2rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
  transition: all 0.25s ease;
}

.course-promo-btn:hover {
  background: var(--blue-500);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.5);
}

.course-promo-right {
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.3), rgba(15, 23, 42, 0.5));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  position: relative;
  border-left: 1px solid rgba(255, 255, 255, 0.08);
}

.course-promo-right::before {
  content: '';
  position: absolute;
  width: 150px;
  height: 150px;
  background: var(--blue-500);
  filter: blur(100px);
  opacity: 0.15;
  border-radius: 50%;
}

.course-visual-badge {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 2rem;
  border-radius: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  width: 100%;
  max-width: 240px;
  text-align: center;
  box-shadow: 0 20px 40px rgba(0,0,0,0.2);
  transition: transform 0.3s ease;
}

.course-promo-card:hover .course-visual-badge {
  transform: scale(1.05);
}

.course-visual-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--blue-500), var(--blue-700));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
}

.course-visual-title {
  font-weight: 700;
  font-size: 1.05rem;
  color: white;
}

.course-visual-desc {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
}

.course-visual-tag {
  font-size: 0.75rem;
  font-weight: 600;
  color: #34d399;
  background: rgba(52, 211, 153, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  border: 1px solid rgba(52, 211, 153, 0.2);
}

/* ─── MATERI GRATIS ─── */
.materi { background: var(--gray-50); }

.materi-container {
  max-width: 960px;
  margin: 0 auto;
}

.materi-single-card {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  background: var(--white);
  border: 1.5px solid var(--gray-200);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.01);
  transition: all 0.3s ease;
}

.materi-single-card:hover {
  border-color: var(--blue-300);
  box-shadow: 0 15px 40px rgba(37, 99, 235, 0.08);
  transform: translateY(-2px);
}

.materi-card-left {
  padding: 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.materi-card-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #059669;
  background: #ecfdf5;
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  width: fit-content;
}

.materi-card-left h3 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.8rem;
  color: var(--gray-900);
  line-height: 1.25;
}

.materi-card-left p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.75;
}

.materi-categories {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
  margin: 0.5rem 0;
}

.materi-cat-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--gray-800);
  font-weight: 500;
}

.materi-cat-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--blue-50);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
}

.materi-btn-primary {
  margin-top: 1rem;
  background: var(--blue-600);
  color: white;
  padding: 0.8rem 1.8rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  transition: all 0.2s ease;
}

.materi-btn-primary:hover {
  background: var(--blue-700);
  transform: translateY(-1px);
}

.materi-card-right {
  background: linear-gradient(135deg, var(--blue-50), var(--blue-100));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem;
  border-left: 1px solid var(--gray-100);
}

.materi-gdrive-preview {
  background: var(--white);
  padding: 1.8rem;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.1);
  text-align: center;
  width: 100%;
  max-width: 220px;
  transition: transform 0.3s ease;
}

.materi-single-card:hover .materi-gdrive-preview {
  transform: scale(1.05);
}

.gdrive-logo-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: #fffdf5;
  box-shadow: 0 4px 10px rgba(0,0,0,0.02);
}

.gdrive-logo-icon img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.gdrive-text {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--gray-900);
  margin-top: 0.2rem;
}

.gdrive-shared {
  font-size: 0.75rem;
  color: var(--blue-600);
  font-weight: 600;
  background: var(--blue-50);
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
}

/* ─── MERCHANDISE ─── */
.merch-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }

.merch-grid-2 {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem;
  max-width: 860px; margin: 0 auto;
}

.merch-card {
  border: 1.5px solid var(--gray-200); border-radius: 16px;
  overflow: hidden; background: var(--white);
  transition: all 0.25s;
}
.merch-card:hover { border-color: var(--blue-200); transform: translateY(-2px); }

.merch-card-2 {
  border: 1.5px solid var(--gray-200); border-radius: 16px;
  overflow: hidden; background: var(--white);
  transition: all 0.25s;
}
.merch-card-2:hover { border-color: var(--blue-200); transform: translateY(-3px); box-shadow: 0 12px 32px rgba(37,99,235,0.1); }

.merch-img-2 {
  width: 100%; background: var(--white);
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
}
.merch-img-2 img {
  width: 100%; height: auto; object-fit: contain;
  display: block;
  transition: transform 0.4s ease;
}
.merch-card-2:hover .merch-img-2 img { transform: scale(1.02); }

.merch-img {
  height: 140px; display: flex; align-items: center; justify-content: center;
  font-size: 3rem; background: var(--blue-50);
}
.merch-body { padding: 1.25rem; }
.merch-card h4, .merch-card-2 h4 { font-size: 1rem; font-weight: 700; color: var(--gray-900); margin-bottom: 0.3rem; }
.merch-card small, .merch-card-2 small { font-size: 0.8rem; color: var(--text-muted); line-height: 1.5; display: block; }
.merch-footer {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 1rem;
}
.merch-price { font-size: 1rem; font-weight: 700; color: var(--blue-700); }
.merch-btn {
  font-size: 0.8rem; font-weight: 600;
  background: var(--blue-600); color: white;
  border: none; padding: 0.45rem 1rem; border-radius: 8px;
  cursor: pointer; font-family: 'DM Sans', sans-serif;
  transition: background 0.2s;
}
.merch-btn:hover { background: var(--blue-700); }

/* ─── FOUNDERS ─── */
.founders { background: var(--white); }
.founders-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  max-width: 960px;
  margin: 0 auto;
}
.founder-card {
  display: flex;
  background: var(--gray-50);
  border: 1.5px solid var(--gray-200);
  border-radius: 20px;
  overflow: hidden;
  transition: all 0.3s ease;
}
.founder-card:hover {
  border-color: var(--blue-300);
  background: var(--white);
  box-shadow: 0 15px 40px rgba(37, 99, 235, 0.08);
  transform: translateY(-3px);
}
.founder-img-wrapper {
  width: 170px;
  height: 100%;
  flex-shrink: 0;
  overflow: hidden;
  background: var(--gray-200);
  position: relative;
}
.founder-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
  display: block;
}
.founder-card:hover .founder-img {
  transform: scale(1.05);
}
.founder-info {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.6rem;
}
.founder-role {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--blue-600);
}
.founder-info h4 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.3rem;
  color: var(--gray-900);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.founder-tag-inline {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--blue-600);
  background: var(--blue-50);
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  border: 1px solid rgba(37, 99, 235, 0.1);
}
.founder-bio {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.founder-socials {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.4rem;
}
.founder-badge {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--gray-600);
  background: var(--gray-200);
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
}

/* ─── JOIN ─── */
.join {
  background: var(--blue-700);
  position: relative; overflow: hidden;
}
.join::before {
  content: '';
  position: absolute; top: -80px; right: -80px;
  width: 300px; height: 300px;
  background: rgba(255,255,255,0.04); border-radius: 50%;
}
.join::after {
  content: '';
  position: absolute; bottom: -100px; left: 10%;
  width: 250px; height: 250px;
  background: rgba(255,255,255,0.03); border-radius: 50%;
}

.join-inner {
  max-width: 680px; margin: 0 auto; text-align: center;
  position: relative; z-index: 1;
}

.join .section-label { justify-content: center; color: var(--blue-200); }
.join .section-label::after { background: var(--blue-400); }

.join .section-title { color: white; margin-bottom: 1rem; }

.join > .join-inner > p {
  color: rgba(255,255,255,0.7);
  font-size: 1rem; margin-bottom: 2.5rem; line-height: 1.75;
}

.join-platforms {
  display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.platform-btn {
  display: flex; align-items: center; gap: 10px;
  padding: 0.9rem 1.75rem; border-radius: 12px;
  font-size: 0.9rem; font-weight: 600;
  cursor: pointer; border: none; text-decoration: none;
  transition: all 0.2s; font-family: 'DM Sans', sans-serif;
}
.platform-btn.wa {
  background: #25d366; color: white;
}
.platform-btn.wa:hover { background: #20bd5c; transform: translateY(-2px); }
.platform-btn.tg {
  background: #0088cc; color: white;
}
.platform-btn.tg:hover { background: #0077b3; transform: translateY(-2px); }

.platform-icon { font-size: 1.2rem; }

.join-note { font-size: 0.82rem; color: rgba(255,255,255,0.5); }

/* ─── FOOTER ─── */
footer {
  padding: 2.5rem 6%;
  border-top: 1px solid var(--gray-100);
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}
.footer-logo {
  font-family: 'DM Serif Display', serif;
  font-size: 1.1rem; color: var(--blue-700);
}
.footer-links { display: flex; gap: 1.5rem; list-style: none; }
.footer-links a { font-size: 0.82rem; color: var(--text-muted); text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: var(--blue-600); }
.footer-copy { font-size: 0.78rem; color: var(--text-muted); }

/* ─── ANIMATE ─── */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.55s ease, transform 0.55s ease; }
.fade-in.show { opacity: 1; transform: translateY(0); }

/* ─── HAMBURGER ─── */
.hamburger {
  display: none; flex-direction: column; justify-content: center;
  gap: 5px; cursor: pointer; padding: 4px; background: none; border: none;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--gray-800); border-radius: 2px;
  transition: all 0.3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none; position: fixed; top: 68px; left: 0; right: 0;
  background: rgba(255,255,255,0.98); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--gray-100); z-index: 199;
  flex-direction: column; padding: 1rem 6%;
  gap: 0;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-size: 1rem; font-weight: 500; color: var(--text);
  text-decoration: none; padding: 0.85rem 0;
  border-bottom: 1px solid var(--gray-100);
  transition: color 0.2s;
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { color: var(--blue-600); }
.mobile-menu-cta {
  margin-top: 1rem;
  background: var(--blue-600); color: white;
  text-align: center; padding: 0.8rem;
  border-radius: 10px; font-weight: 600; font-size: 0.95rem;
  text-decoration: none; display: block;
}

/* ─── RESPONSIVE ─── */
 
/* Tablet landscape */
@media (max-width: 1024px) {
  .divisi-cards { grid-template-columns: repeat(2, 1fr); }
  .about-grid { gap: 3rem; }
}
 
/* Tablet portrait */
@media (max-width: 768px) {
  /* Nav */
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  nav { padding: 0 5%; }
 
  /* Nav logo */
  .nav-logo-img { height: 85px; }
 
  /* Hero */
  .hero {
    flex-direction: column-reverse !important;
    padding: 7rem 5% 4rem !important;
    gap: 2.5rem !important;
    text-align: center;
  }
  .hero-content { max-width: 100%; }
  .hero-eyebrow { justify-content: center; }
  .hero h1 { font-size: clamp(2.2rem, 8vw, 3rem); }
  .hero p { max-width: 100%; }
  .hero-btns { justify-content: center; }
  .hero-numbers { justify-content: center; gap: 1.5rem; flex-wrap: wrap; }
  .hero-image { width: 100%; }
  .hero-image img { max-width: 100%; border-radius: 14px; }
 
  /* About */
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .about-values { grid-template-columns: 1fr 1fr; }
 
  /* Divisi */
  .divisi-cards { grid-template-columns: 1fr; }
 
  /* Kegiatan */
  .kegiatan-grid { grid-template-columns: 1fr; }
 
  /* Course Promo */
  .course-promo-card {
    grid-template-columns: 1fr;
  }
  .course-promo-left {
    padding: 2.5rem;
  }
  .course-promo-right {
    padding: 3rem;
    border-left: none;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }
 
  /* Materi Promo */
  .materi-single-card {
    grid-template-columns: 1fr;
  }
  .materi-card-left {
    padding: 2rem;
  }
  .materi-card-right {
    padding: 2.5rem;
    border-left: none;
    border-top: 1px solid var(--gray-200);
  }
 
  /* Merch */
  .merch-grid-2 { grid-template-columns: 1fr; gap: 1.5rem; }
 
  /* Founders */
  .founders-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .founder-card {
    flex-direction: column;
  }
  .founder-img-wrapper {
    width: 100%;
    height: 240px;
  }
  .founder-info {
    padding: 1.5rem;
  }
 
  /* Footer */
  footer { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .footer-links { flex-wrap: wrap; gap: 1rem; }
 
  /* Section padding */
  section { padding: 4rem 5%; }
}
 
/* Mobile */
@media (max-width: 480px) {
  nav { height: 60px; }
  .nav-logo-img { height: 85px; }
  .mobile-menu { top: 60px; }
 
  .hero { padding: 6rem 5% 3rem !important; }
  .hero h1 { font-size: clamp(1.9rem, 7vw, 2.4rem); letter-spacing: -1px; }
  .hero-numbers { gap: 1rem; }
  .num-val { font-size: 1.6rem; }
 
  .about-values { grid-template-columns: 1fr; }
 
  .course-promo-left {
    padding: 1.5rem;
  }
  .course-perks {
    grid-template-columns: 1fr;
  }
  .course-promo-btn {
    width: 100%;
    justify-content: center;
  }
 
  .materi-card-left {
    padding: 1.5rem;
  }
  .materi-categories {
    grid-template-columns: 1fr;
  }
  .materi-btn-primary {
    width: 100%;
    justify-content: center;
  }
 
  .kegiatan-card { flex-direction: column; gap: 1rem; }
 
  .section-title { font-size: 1.7rem; }
 
  .join-platforms { flex-direction: column; align-items: center; }
  .platform-btn { width: 100%; justify-content: center; }
 
  footer { padding: 2rem 5%; }
  .footer-links { gap: 0.75rem; }
}