/* ============================================
   PRAEVIUS BRAND SYSTEM - CSS IMPLEMENTATION
   Version 1.1 - December 2025
   Aligned with App Aesthetic
   ============================================ */

:root {
  /* ===== PRIMARY BRAND COLORS ===== */
  --praevius-orange: #FF9900;
  --praevius-orange-hover: #E68A00;
  --praevius-white: #FFFFFF;
  
  /* ===== WARM CHARCOAL SYSTEM (matches app) ===== */
  --charcoal-900: hsl(20, 6%, 10%);
  --charcoal-800: hsl(20, 6%, 14%);
  --charcoal-700: hsl(20, 6%, 18%);
  --charcoal-600: hsl(20, 6%, 20%);
  --praevius-charcoal: var(--charcoal-900);
  --praevius-dark-gray: var(--charcoal-700);
  
  /* ===== SECONDARY COLORS ===== */
  --praevius-light-gray: #F0F0F0;
  --praevius-medium-gray: #757575;
  
  /* ===== SEMANTIC COLORS (Traffic Light) ===== */
  --praevius-green: #10B981;
  --praevius-green-light: #D1FAE5;
  --praevius-green-dark: #065F46;
  --praevius-yellow: #F59E0B;
  --praevius-yellow-light: #FEF3C7;
  --praevius-yellow-dark: #92400E;
  --praevius-red: #EF4444;
  --praevius-red-light: #FEE2E2;
  --praevius-red-dark: #991B1B;
  
  /* ===== TYPOGRAPHY ===== */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Monaco', 'Courier New', Consolas, monospace;
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-extrabold: 800;
  
  /* ===== SPACING ===== */
  --spacing-sm: 0.5rem;
  --spacing-md: 0.75rem;
  --spacing-lg: 1rem;
  --spacing-xl: 1.25rem;
  --spacing-2xl: 1.5rem;
  --spacing-3xl: 2rem;
  
  /* ===== BORDER RADIUS (matches app) ===== */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-full: 9999px;
  
  /* ===== SHADOWS ===== */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 2px 4px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 4px 8px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 8px 16px rgba(0, 0, 0, 0.12);
  
  /* ===== TRANSITIONS ===== */
  --transition-fast: 150ms ease;
  --transition-normal: 200ms ease;
}

/* ===== GLOBAL STYLES ===== */

body {
  font-family: var(--font-primary);
  color: var(--praevius-charcoal);
  background-color: var(--praevius-white);
  line-height: 1.6;
}

/* ===== NAVBAR ===== */

.navbar {
  background-color: var(--charcoal-900) !important;
}

.navbar-brand img {
  height: 39px !important;
  width: auto !important;
  max-height: none !important;
}

.navbar-nav .nav-link {
  color: var(--praevius-white) !important;
  font-weight: var(--weight-medium);
  transition: color var(--transition-fast);
}

.navbar-nav .nav-link:hover {
  color: var(--praevius-orange) !important;
}

/* ===== HERO SECTION ===== */

.hero-section {
  background: linear-gradient(180deg, var(--charcoal-900) 0%, var(--charcoal-800) 100%);
  color: var(--praevius-white);
  padding: 6rem 2rem;
  text-align: center;
}

.hero-section h1 {
  font-size: 3.5rem;
  font-weight: var(--weight-extrabold);
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.hero-section .tagline {
  font-size: 1.5rem;
  color: var(--praevius-light-gray);
  margin-bottom: 2rem;
}

.highlight {
  color: var(--praevius-orange);
}

/* ===== BUTTONS - Dark text on orange (matches app) ===== */

.btn {
  font-family: var(--font-primary);
  font-weight: var(--weight-medium);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

.btn-primary {
  background-color: var(--praevius-orange) !important;
  color: var(--charcoal-900) !important;
  border: none;
}

.btn-primary:hover {
  background-color: var(--praevius-orange-hover) !important;
  color: var(--charcoal-900) !important;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--praevius-orange);
  border: 2px solid var(--praevius-orange);
}

.btn-secondary:hover {
  background-color: var(--praevius-orange);
  color: var(--charcoal-900) !important;
}

.btn-white {
  background-color: transparent;
  color: var(--praevius-white);
  border: 2px solid var(--praevius-white);
}

.btn-white:hover {
  background-color: var(--praevius-white);
  color: var(--charcoal-900);
}

/* ===== FEATURE CARDS ===== */

.feature-card {
  background-color: var(--praevius-white);
  border: 1px solid var(--praevius-light-gray);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.feature-card h3 {
  color: var(--praevius-charcoal);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.feature-card h3 i,
.feature-card h3 .bi {
  color: var(--praevius-orange);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.feature-card p {
  color: var(--praevius-medium-gray);
}

/* ===== SECTIONS ===== */

.section {
  padding: 5rem 2rem;
}

.section-light {
  background-color: var(--praevius-white);
  padding: 4rem 2rem;
}

.section-gray {
  background-color: var(--praevius-light-gray);
  padding: 2.5rem 2rem 4rem 2rem;
}

.section-dark {
  background: linear-gradient(180deg, var(--charcoal-900) 0%, var(--charcoal-800) 100%);
  color: var(--praevius-white);
  padding: 4rem 2rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: var(--weight-semibold);
  text-align: center;
  margin-bottom: 3rem;
}

.section-title span {
  color: var(--praevius-orange);
}

/* ===== PRICING CARDS ===== */

.pricing-card {
  background-color: var(--praevius-white);
  border: 1px solid var(--praevius-light-gray);
  border-radius: var(--radius-lg);
  padding: var(--spacing-3xl);
  text-align: center;
  transition: all var(--transition-normal);
}

.pricing-card.featured {
  border-color: var(--praevius-orange);
  border-width: 2px;
  transform: scale(1.05);
}

.pricing-card:hover {
  box-shadow: var(--shadow-xl);
}

.pricing-card .price {
  font-size: 3rem;
  font-weight: var(--weight-extrabold);
  color: var(--praevius-charcoal);
}

.pricing-card .price span {
  font-size: 1rem;
  font-weight: var(--weight-regular);
  color: var(--praevius-medium-gray);
}

/* ===== VARIANCE BADGES ===== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: var(--weight-semibold);
}

.badge-green {
  background-color: var(--praevius-green-light);
  color: var(--praevius-green-dark);
}

.badge-yellow {
  background-color: var(--praevius-yellow-light);
  color: var(--praevius-yellow-dark);
}

.badge-red {
  background-color: var(--praevius-red-light);
  color: var(--praevius-red-dark);
}

/* ===== FOOTER ===== */

.footer {
  background-color: var(--charcoal-900);
  color: var(--praevius-white);
  padding: 3rem 2rem;
}

.footer a {
  color: var(--praevius-orange);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

/* ===== GRID LAYOUT ===== */

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

/* ===== CONTAINER ===== */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== RESPONSIVE ===== */

@media (max-width: 768px) {
  .hero-section h1 {
    font-size: 2.5rem;
  }
  
  .hero-section .tagline {
    font-size: 1.25rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .pricing-card.featured {
    transform: none;
  }
}

/* ===== FOCUS STATES ===== */

:focus-visible {
  outline: 2px solid var(--praevius-orange);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ===== UTILITY CLASSES ===== */

.text-orange { color: var(--praevius-orange); }
.text-charcoal { color: var(--praevius-charcoal); }
.text-gray { color: var(--praevius-medium-gray); }
.text-center { text-align: center; }

.bg-orange { background-color: var(--praevius-orange); }
.bg-charcoal { background-color: var(--praevius-charcoal); }
.bg-white { background-color: var(--praevius-white); }

.mt-2 { margin-top: var(--spacing-lg); }
.mt-3 { margin-top: var(--spacing-2xl); }
.mb-2 { margin-bottom: var(--spacing-lg); }
.mb-3 { margin-bottom: var(--spacing-2xl); }
.mb-4 { margin-bottom: var(--spacing-3xl); }