/* AuthenticPond - Modern Design System (Floating Island Navbar & Theme Engine) */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  /* Default: Crisp Modern Light Theme */
  --bg-primary: #f8fafc;
  --bg-surface: #ffffff;
  --bg-secondary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #ffffff;
  --border-color: #e2e8f0;
  --border-hover: rgba(2, 132, 199, 0.4);
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;
  --accent-cyan: #0284c7;
  --accent-purple: #7c3aed;
  --accent-emerald: #059669;
  --nav-bg: rgba(255, 255, 255, 0.85);
  --nav-border: rgba(226, 232, 240, 0.9);
  --grid-line: rgba(15, 23, 42, 0.04);
  --terminal-bg: #0f172a;
  --terminal-text: #f1f5f9;
  --shadow-card: 0 4px 20px -2px rgba(15, 23, 42, 0.06), 0 2px 6px -1px rgba(15, 23, 42, 0.03);
  --shadow-hover: 0 20px 30px -10px rgba(2, 132, 199, 0.12), 0 10px 15px -3px rgba(15, 23, 42, 0.05);
  --shadow-nav: 0 10px 30px -10px rgba(0, 0, 0, 0.08), 0 4px 12px -2px rgba(0, 0, 0, 0.04);
}

.dark {
  /* Dark Theme */
  --bg-primary: #05070d;
  --bg-surface: #090d18;
  --bg-secondary: #0c101d;
  --bg-card: rgba(12, 16, 29, 0.8);
  --bg-card-hover: rgba(18, 24, 43, 0.95);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(0, 243, 255, 0.35);
  --text-main: #f8fafc;
  --text-muted: #cbd5e1;
  --text-dim: #94a3b8;
  --accent-cyan: #00f3ff;
  --accent-purple: #c084fc;
  --accent-emerald: #34d399;
  --nav-bg: rgba(9, 13, 24, 0.85);
  --nav-border: rgba(255, 255, 255, 0.1);
  --grid-line: rgba(255, 255, 255, 0.03);
  --terminal-bg: #090d16;
  --terminal-text: #cbd5e1;
  --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.4);
  --shadow-hover: 0 15px 35px -5px rgba(0, 243, 255, 0.15), 0 0 25px rgba(0, 243, 255, 0.08);
  --shadow-nav: 0 20px 40px -15px rgba(0, 0, 0, 0.7), 0 0 20px rgba(0, 243, 255, 0.05);
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-main);
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6, .font-heading {
  font-family: 'Space Grotesk', sans-serif;
  letter-spacing: -0.02em;
}

.font-mono {
  font-family: 'JetBrains Mono', monospace;
}

/* Background Grids & Patterns */
.bg-grid-pattern {
  background-image: 
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 32px 32px;
}

/* Floating Island / Pill Navbar */
.floating-navbar {
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--nav-border);
  box-shadow: var(--shadow-nav);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Nav Link Pill Styling */
.nav-link {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.5rem 0.85rem;
  border-radius: 9999px;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-link:hover {
  color: var(--text-main);
  background: var(--bg-secondary);
}

.dark .nav-link:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #00f3ff;
}

/* Glassmorphism Card System */
.theme-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.theme-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

/* Gradient Headings */
.gradient-heading-cyan {
  background: linear-gradient(135deg, #0284c7 0%, #06b6d4 50%, #4f46e5 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.dark .gradient-heading-cyan {
  background: linear-gradient(135deg, #ffffff 0%, #00f3ff 60%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-heading-purple {
  background: linear-gradient(135deg, #6d28d9 0%, #9333ea 50%, #db2777 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.dark .gradient-heading-purple {
  background: linear-gradient(135deg, #ffffff 0%, #c084fc 60%, #f472b6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn-primary-cyan {
  background: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
  color: #ffffff;
  font-weight: 700;
  border-radius: 9999px;
  transition: all 0.25s ease;
  box-shadow: 0 4px 14px 0 rgba(2, 132, 199, 0.35);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-primary-cyan:hover {
  box-shadow: 0 6px 20px rgba(2, 132, 199, 0.5);
  transform: translateY(-2px);
}

.dark .btn-primary-cyan {
  background: linear-gradient(135deg, #00f3ff 0%, #3b82f6 100%);
  color: #05070d;
  box-shadow: 0 0 20px rgba(0, 243, 255, 0.35);
}

.dark .btn-primary-cyan:hover {
  box-shadow: 0 0 30px rgba(0, 243, 255, 0.6);
}

.btn-primary-purple {
  background: linear-gradient(135deg, #7c3aed 0%, #4f46e5 100%);
  color: #ffffff;
  font-weight: 700;
  border-radius: 9999px;
  transition: all 0.25s ease;
  box-shadow: 0 4px 14px 0 rgba(124, 58, 237, 0.35);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-primary-purple:hover {
  box-shadow: 0 6px 20px rgba(124, 58, 237, 0.5);
  transform: translateY(-2px);
}

.dark .btn-primary-purple {
  background: linear-gradient(135deg, #a855f7 0%, #6366f1 100%);
  color: #ffffff;
  box-shadow: 0 0 20px rgba(168, 85, 247, 0.35);
}

.btn-theme-outline {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-weight: 600;
  border-radius: 9999px;
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-theme-outline:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-2px);
}

/* Pulsing Badge Dot */
.pulsing-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.3);
    opacity: 0.6;
  }
}

/* Terminal Simulator Window */
.terminal-window {
  background: var(--terminal-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  overflow: hidden;
}

.terminal-header {
  background: rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.terminal-body {
  padding: 18px 20px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--terminal-text);
  min-height: 270px;
}

.cursor-blink {
  display: inline-block;
  width: 8px;
  height: 15px;
  background-color: #00f3ff;
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Code Box */
.code-box {
  background: var(--terminal-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 12px 16px;
  font-family: 'JetBrains Mono', monospace;
  position: relative;
}

.copy-btn {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #cbd5e1;
  padding: 5px 12px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  transition: all 0.2s ease;
  cursor: pointer;
}

.copy-btn:hover {
  background: rgba(6, 182, 212, 0.3);
  border-color: #00f3ff;
  color: #ffffff;
}

/* Reveal on Scroll */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}