/* =========================================================
   STYLE MICRO-SITE GATRA ADHIKA — FUTURISTIC EDTECH (2026 VIBES)
   Color Palette: Vibrant Red (#EE0000), Cyan Accent (#06B6D4), Listing Gold (#F59E0B)
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800;900&display=swap');

:root {
  /* Core Brand Colors */
  --gatra-red: #EE0000;             /* Electric Red GATRA */
  --gatra-red-dark: #B30000;        /* Deep Crimson */
  --gatra-red-glow: rgba(238, 0, 0, 0.35);
  --gatra-red-soft: #FFF5F5;        /* Soft Tint Red */

  --kb-cyan: #06B6D4;               /* Electric Cyan Kelas Bisa */
  --kb-cyan-glow: rgba(6, 182, 212, 0.4);
  --kb-cyan-soft: #ECFEFF;

  --gatra-gold: #F59E0B;           /* Listing Gold */
  --gatra-gold-glow: rgba(245, 158, 11, 0.35);
  --gatra-gold-soft: #FFFBEB;

  /* Neutral Modern Palette */
  --gatra-dark: #0F172A;           /* Deep Obsidian */
  --gatra-dark-glass: rgba(15, 23, 42, 0.85);
  --gatra-bg: #F8FAFC;             /* Clean Canvas */
  --gatra-card: #FFFFFF;
  --gatra-text-main: #0F172A;
  --gatra-text-muted: #64748B;
  --gatra-border: #E2E8F0;

  /* Geometry & Motion */
  --radius-xl: 20px;
  --radius-lg: 14px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --transition-bounce: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* BASE STYLING */
body {
  background-color: var(--gatra-bg);
  color: var(--gatra-text-main);
  font-family: 'Plus Jakarta Sans', -apple-system, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.gatra-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  box-sizing: border-box;
}

/* =========================================================
   1. SUB-HEADER NAVBAR INTERNAL GATRA (GLASSMORPHISM)
   ========================================================= */
.gatra-subnav {
  background: var(--gatra-dark-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 12px 0;
  position: sticky;
  top: 0;
  z-index: 999;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.subnav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.subnav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #FFFFFF;
  font-weight: 900;
  font-size: 1.2rem;
  letter-spacing: -0.5px;
  text-decoration: none;
}

.subnav-brand span {
  color: var(--gatra-red);
  text-shadow: 0 0 12px var(--gatra-red-glow);
}

.subnav-menu {
  display: flex;
  gap: 6px;
  list-style: none !important;
  margin: 0;
  padding: 0 !important;
}

.subnav-menu li {
  padding-left: 0 !important;
  margin-bottom: 0 !important;
}

.subnav-menu li::before {
  display: none !important;
}

.subnav-menu a {
  color: #94A3B8;
  font-size: 0.88rem;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.subnav-menu a:hover,
.subnav-menu a.active {
  color: #FFFFFF;
  background: rgba(238, 0, 0, 0.15);
  border: 1px solid var(--gatra-red);
  box-shadow: 0 0 15px var(--gatra-red-glow);
}

.btn-wa-consult {
  background: linear-gradient(135deg, #25D366 0%, #059669 100%);
  color: #FFFFFF !important;
  font-size: 0.82rem;
  font-weight: 800;
  padding: 10px 20px;
  border-radius: 30px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 0 16px rgba(37, 211, 102, 0.35);
  transition: var(--transition-bounce);
}

.btn-wa-consult:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 0 25px rgba(37, 211, 102, 0.6);
}

/* =========================================================
   2. HERO SECTION (NEON CYBER AI GRID)
   ========================================================= */
.gatra-hero {
  background: 
    radial-gradient(circle at top right, rgba(6, 182, 212, 0.15), transparent 40%),
    radial-gradient(circle at bottom left, rgba(238, 0, 0, 0.2), transparent 50%),
    linear-gradient(135deg, #0B0F17 0%, #170505 100%);
  color: #FFFFFF;
  padding: 72px 0;
  border-bottom: 2px solid rgba(238, 0, 0, 0.3);
  position: relative;
  overflow: hidden;
}

.gatra-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.gatra-section {
  padding: 64px 0;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px auto;
}

.section-header h2 {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--gatra-dark);
  margin: 0 0 12px 0;
  letter-spacing: -0.8px;
}

.section-header p {
  color: var(--gatra-text-muted);
  font-size: 0.98rem;
  margin: 0;
}

/* =========================================================
   3. INTERACTIVE NEON CARDS (INTERAKSI & SHIMMER)
   ========================================================= */
.gatra-card {
  background: var(--gatra-card);
  border: 1.5px solid var(--gatra-border);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.03);
  transition: var(--transition-bounce);
  position: relative;
  overflow: hidden;
}

/* Shimmer Light Effect */
.gatra-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -150%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(238, 0, 0, 0.06), transparent);
  transition: 0.8s ease;
}

.gatra-card:hover::after {
  left: 150%;
}

.gatra-card:hover {
  transform: translateY(-8px) scale(1.015);
  border-color: var(--gatra-red);
  box-shadow: 
    0 20px 40px rgba(238, 0, 0, 0.12),
    0 0 25px var(--gatra-red-glow);
}

/* =========================================================
   4. FIX BULLET LIST SYSTEM (CYAN & GOLD ICON BADGES)
   ========================================================= */

/* Paksa override list-style global */
.gatra-card ul,
.gatra-section ul:not(.subnav-menu) {
  list-style: none !important;
  padding-left: 0 !important;
  margin-top: 14px !important;
  margin-bottom: 22px !important;
}

.gatra-card ul li,
.gatra-section ul:not(.subnav-menu) li {
  position: relative !important;
  padding-left: 30px !important;
  margin-bottom: 10px !important;
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--gatra-text-main);
  list-style: none !important;
}

/* Glowing Checkmark Bullet Icon (Cyan Kelas Bisa Accent) */
.gatra-card ul li::before,
.gatra-section ul:not(.subnav-menu) li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 1px;
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, var(--kb-cyan) 0%, #0284C7 100%);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 900;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 10px var(--kb-cyan-glow);
  font-family: sans-serif;
}

/* Alternative Gold Bullet List untuk Fitur Highlights */
.gatra-card ul.list-gold li::before {
  background: linear-gradient(135deg, var(--gatra-gold) 0%, #D97706 100%);
  box-shadow: 0 0 10px var(--gatra-gold-glow);
}

/* =========================================================
   5. BADGES & NEON BUTTONS
   ========================================================= */
.badge-gold {
  background: var(--gatra-gold-soft);
  color: #B45309;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 6px 14px;
  border-radius: 30px;
  border: 1px solid #FDE68A;
  display: inline-block;
  letter-spacing: 0.3px;
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.15);
}

.badge-cyan {
  background: var(--kb-cyan-soft);
  color: #0369A1;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 6px 14px;
  border-radius: 30px;
  border: 1px solid #BAE6FD;
  display: inline-block;
  box-shadow: 0 0 10px var(--kb-cyan-glow);
}

/* Button Primary Gradient + Glow Hover */
.btn-gatra-primary {
  background: linear-gradient(135deg, var(--gatra-red) 0%, var(--gatra-red-dark) 100%);
  color: #FFFFFF;
  font-weight: 800;
  font-size: 0.92rem;
  padding: 12px 26px;
  border-radius: var(--radius-md);
  text-decoration: none;
  display: inline-block;
  text-align: center;
  border: none;
  cursor: pointer;
  box-shadow: 0 6px 20px var(--gatra-red-glow);
  transition: var(--transition-bounce);
}

.btn-gatra-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 28px rgba(238, 0, 0, 0.5);
  background: linear-gradient(135deg, #FF1A1A 0%, var(--gatra-red) 100%);
}

/* =========================================================
   6. TABLE ALUMNI CUSTOM STYLING (NEON HOVER ROWS)
   ========================================================= */
table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

th {
  background: var(--gatra-dark);
  color: #FFFFFF;
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 18px 20px;
  border-bottom: 2px solid var(--gatra-red);
}

td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--gatra-border);
  background: #FFFFFF;
  transition: var(--transition-smooth);
}

tr:hover td {
  background: var(--gatra-red-soft);
  border-bottom-color: rgba(238, 0, 0, 0.2);
}

/* =========================================================
   7. RESPONSIVE BREAKPOINTS
   ========================================================= */
@media (max-width: 992px) {
  .subnav-wrapper {
    flex-direction: column;
    align-items: stretch;
  }
  .subnav-menu {
    overflow-x: auto;
    padding-bottom: 6px;
    justify-content: flex-start;
  }
  .subnav-menu a {
    white-space: nowrap;
  }
}

/* =========================================================
   FIX TUTOR CARD ALIGNMENT & CENTERED PHOTO
   ========================================================= */
.tutor-card {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  text-align: center !important;
  padding: 28px 20px !important;
}

.tutor-photo {
  width: 105px !important;
  height: 105px !important;
  border-radius: 50% !important;
  object-fit: cover !important;
  border: 3px solid var(--gatra-gold) !important;
  margin: 0 auto 16px auto !important;
  display: block !important;
  box-shadow: 0 0 15px var(--gatra-gold-glow) !important;
}