/**
 * SmartCV Unified Design System
 * Shared styles for all pages - consistent colors, spacing, animations
 */

/* ===== Design Tokens ===== */
:root {
  /* Colors - Primary Blue/Indigo Palette */
  --color-primary: #2563eb;
  --color-primary-light: #3b82f6;
  --color-primary-dark: #1d4ed8;
  --color-secondary: #6366f1;
  --color-accent: #f97316;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  /* Neutrals */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border-color: #e2e8f0;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #2563eb 0%, #6366f1 100%);
  --gradient-hero: linear-gradient(135deg, #eff6ff 0%, #f8fafc 50%, #eef2ff 100%);
  --gradient-card: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  --gradient-accent: linear-gradient(135deg, #f97316 0%, #fb923c 100%);

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-primary: 0 10px 40px -10px rgba(37, 99, 235, 0.3);
  --shadow-glow: 0 0 60px rgba(37, 99, 235, 0.15);

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;

  /* Spacing Scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;

  /* Transitions */
  --transition-fast: all 0.15s ease;
  --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* Navigation */
  --nav-bg: rgba(255, 255, 255, 0.85);
  --nav-height: 80px;
}

/* Dark Theme */
.dark {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  --border-color: #334155;

  --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #1e1b4b 100%);
  --gradient-card: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
  --shadow-primary: 0 10px 40px -10px rgba(59, 130, 246, 0.4);
  --shadow-glow: 0 0 60px rgba(59, 130, 246, 0.2);

  --nav-bg: rgba(15, 23, 42, 0.9);
}

/* ===== Base Styles ===== */
body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: var(--transition-base);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

/* ===== Navigation ===== */
.glass-nav {
  background: var(--nav-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-base);
}

/* ===== Hero Section ===== */
.hero-gradient {
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
}

.hero-gradient::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.dark .hero-gradient::before {
  background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, transparent 70%);
}

/* ===== Cards ===== */
.card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(37, 99, 235, 0.2);
}

.dark .card:hover {
  border-color: rgba(59, 130, 246, 0.3);
}

/* ===== Buttons ===== */
.btn-primary {
  background: var(--gradient-primary);
  color: white;
  font-weight: 600;
  padding: 16px 32px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-primary);
  transition: var(--transition-base);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 50px -10px rgba(37, 99, 235, 0.4);
  filter: brightness(1.05);
}

.btn-secondary {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-weight: 600;
  padding: 16px 32px;
  border-radius: var(--radius-lg);
  border: 2px solid var(--border-color);
  transition: var(--transition-base);
  cursor: pointer;
}

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

/* ===== Input Fields ===== */
.input-field {
  width: 100%;
  padding: 16px 20px;
  background: var(--bg-secondary);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  transition: var(--transition-base);
  color: var(--text-primary);
}

.input-field:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--bg-primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.2);
  }
  50% {
    box-shadow: 0 0 40px rgba(37, 99, 235, 0.4);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease-out forwards;
}

.animate-fade-in {
  animation: fadeIn 0.4s ease-out forwards;
}

.animate-slide-down {
  animation: slideDown 0.5s ease-out forwards;
}

/* ===== Section Spacing ===== */
.section {
  padding: 96px 24px;
}

.section-sm {
  padding: 64px 24px;
}

/* ===== Container ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Badge ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid rgba(37, 99, 235, 0.15);
}

/* ===== Icon Boxes ===== */
.icon-box {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: var(--transition-base);
}

.icon-box.blue {
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary);
}

.icon-box.purple {
  background: rgba(99, 102, 241, 0.1);
  color: var(--color-secondary);
}

.icon-box.orange {
  background: rgba(249, 115, 22, 0.1);
  color: var(--color-accent);
}

.icon-box.green {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
}

.icon-box:hover {
  transform: scale(1.1) rotate(5deg);
}