/**
 * Neo-Glass Design System — PintarEdu (Mung Sekolah)
 * Design Tokens, Glassmorphism, Futuristic Accents & Native Dark Mode Engine
 */

:root {
  /* Brand Core Palette */
  --brand-primary: #0284c7;
  --brand-primary-hover: #0369a1;
  --brand-cyan: #06b6d4;
  --brand-violet: #8b5cf6;
  --brand-emerald: #10b981;
  --brand-amber: #f59e0b;
  --brand-rose: #f43f5e;

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;

  /* Light Theme (Crystal Prism Glass) */
  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-bg-hover: rgba(255, 255, 255, 0.88);
  --glass-bg-subtle: rgba(255, 255, 255, 0.45);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-border-subtle: rgba(226, 232, 240, 0.8);
  --glass-shadow: 0 10px 30px -5px rgba(2, 132, 199, 0.08), 0 4px 6px -2px rgba(15, 23, 42, 0.03);
  --glass-shadow-hover: 0 20px 35px -5px rgba(2, 132, 199, 0.16), 0 10px 15px -3px rgba(15, 23, 42, 0.05);
  --glass-glow: 0 0 25px rgba(6, 182, 212, 0.15);
  --glass-blur: blur(16px);
  
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-dim: #94a3b8;
  --text-inverse: #ffffff;

  --border-color: rgba(226, 232, 240, 0.85);
  --input-bg: rgba(255, 255, 255, 0.85);
  --input-border: rgba(203, 213, 225, 0.8);

  --mesh-1: rgba(6, 182, 212, 0.10);
  --mesh-2: rgba(139, 92, 246, 0.08);
  --mesh-3: rgba(2, 132, 199, 0.08);
  --mesh-pattern: rgba(148, 163, 184, 0.07);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 9999px;
}

[data-theme="dark"] {
  /* Dark Theme (Obsidian Midnight Glass) */
  --bg-body: #070d17;
  --bg-surface: #0f172a;
  --bg-surface-elevated: #1e293b;
  --glass-bg: rgba(15, 23, 42, 0.72);
  --glass-bg-hover: rgba(30, 41, 59, 0.82);
  --glass-bg-subtle: rgba(15, 23, 42, 0.45);
  --glass-border: rgba(255, 255, 255, 0.10);
  --glass-border-subtle: rgba(255, 255, 255, 0.06);
  --glass-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
  --glass-shadow-hover: 0 20px 40px -5px rgba(2, 132, 199, 0.25), 0 0 25px rgba(6, 182, 212, 0.2);
  --glass-glow: 0 0 35px rgba(6, 182, 212, 0.28);
  --glass-blur: blur(20px);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --text-inverse: #0f172a;

  --border-color: rgba(255, 255, 255, 0.09);
  --input-bg: rgba(15, 23, 42, 0.75);
  --input-border: rgba(255, 255, 255, 0.14);

  --mesh-1: rgba(6, 182, 212, 0.16);
  --mesh-2: rgba(139, 92, 246, 0.15);
  --mesh-3: rgba(2, 132, 199, 0.18);
  --mesh-pattern: rgba(255, 255, 255, 0.04);
}

/* Base resets & typography */
body {
  font-family: var(--font-sans);
  background-color: var(--bg-body);
  color: var(--text-main);
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
}

/* Background Aurora Mesh Effect */
.neo-mesh-bg {
  background-color: var(--bg-body);
  background-image: 
    radial-gradient(circle at 15% 15%, var(--mesh-1) 0%, transparent 45%),
    radial-gradient(circle at 85% 25%, var(--mesh-2) 0%, transparent 40%),
    radial-gradient(circle at 50% 85%, var(--mesh-3) 0%, transparent 50%),
    linear-gradient(to right, var(--mesh-pattern) 1px, transparent 1px),
    linear-gradient(to bottom, var(--mesh-pattern) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 32px 32px, 32px 32px;
  background-attachment: fixed;
}

/* Glassmorphism Containers */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--radius-lg);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease, background 0.25s ease;
  position: relative;
  overflow: hidden;
}

.glass-card:hover {
  border-color: rgba(6, 182, 212, 0.4);
}

.glass-card-interactive {
  cursor: pointer;
}
.glass-card-interactive:hover {
  transform: translateY(-4px);
  box-shadow: var(--glass-shadow-hover);
  border-color: rgba(6, 182, 212, 0.6);
}

.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--radius-md);
}

/* Glass Navbar */
.glass-navbar {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  transition: all 0.3s ease;
  z-index: 1040;
}

/* Glass Mobile Bottom Dock */
.glass-dock {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 32px);
  max-width: 480px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-pill);
  padding: 8px 16px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 1050;
  transition: all 0.3s ease;
}

.glass-dock-item {
  color: var(--text-muted);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 11px;
  font-weight: 600;
  transition: all 0.2s ease;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
}

.glass-dock-item i {
  font-size: 18px;
  margin-bottom: 2px;
}

.glass-dock-item.active,
.glass-dock-item:hover {
  color: var(--brand-cyan);
  background: rgba(6, 182, 212, 0.12);
  transform: translateY(-2px);
}

/* High-Tech Shimmer Gradient Text */
.shimmer-text {
  background: linear-gradient(135deg, #0284c7 0%, #06b6d4 50%, #8b5cf6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  font-weight: 800;
}

/* Buttons */
.glass-btn-primary {
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 4px 15px rgba(2, 132, 199, 0.35);
  font-weight: 700;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.glass-btn-primary:hover {
  background: linear-gradient(135deg, #0369a1 0%, #0284c7 100%);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(2, 132, 199, 0.5);
}

.glass-btn-cyan {
  background: linear-gradient(135deg, #06b6d4 0%, #0284c7 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.35);
  font-weight: 700;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.glass-btn-cyan:hover {
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.55);
}

.glass-btn-outline {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  color: var(--text-main);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.glass-btn-outline:hover {
  background: var(--glass-bg-hover);
  color: var(--brand-cyan);
  border-color: rgba(6, 182, 212, 0.4);
  transform: translateY(-2px);
}

/* Glass Inputs */
.glass-input {
  background: var(--input-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--input-border);
  color: var(--text-main);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  transition: all 0.2s ease;
}
.glass-input:focus {
  background: var(--bg-surface);
  border-color: var(--brand-cyan);
  box-shadow: 0 0 0 4px rgba(6, 182, 212, 0.18);
  color: var(--text-main);
  outline: none;
}
.glass-input::placeholder {
  color: var(--text-dim);
}

/* Badges & Indicators */
.glass-badge {
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.25);
  color: var(--brand-cyan);
  font-weight: 700;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.glass-badge-pro {
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid rgba(139, 92, 246, 0.35);
  color: var(--brand-violet);
}

.glass-badge-free {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--brand-emerald);
}

.ping-indicator {
  position: relative;
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--brand-emerald);
}
.ping-indicator::after {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  border-radius: 50%;
  background-color: var(--brand-emerald);
  animation: ping 1.5s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes ping {
  75%, 100% {
    transform: scale(2.4);
    opacity: 0;
  }
}

/* Dark mode toggle switch button */
.theme-toggle-btn {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  border-radius: var(--radius-pill);
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s ease;
}
.theme-toggle-btn:hover {
  transform: rotate(20deg) scale(1.05);
  border-color: var(--brand-cyan);
  color: var(--brand-cyan);
}

/* Responsive Helpers */
@media (max-width: 768px) {
  body {
    padding-bottom: 70px; /* Room for mobile glass dock */
  }
}