/* ============================================
   COLLECTION INDEX - DESIGN SYSTEM
   Created: 2026-02-01
   Purpose: Centralized design tokens and variables
   ============================================ */

:root {
  /* ============================================
     TYPOGRAPHY SYSTEM
     ============================================ */

  /* Font Families */
  --font-primary: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;

  /* Font Sizes */
  --font-xs: 0.75rem;      /* 12px */
  --font-sm: 0.875rem;     /* 14px */
  --font-base: 1rem;       /* 16px */
  --font-lg: 1.125rem;     /* 18px */
  --font-xl: 1.25rem;      /* 20px */
  --font-2xl: 1.5rem;      /* 24px */
  --font-3xl: 1.875rem;    /* 30px */
  --font-4xl: 2rem;        /* 32px - H1 Standard */

  /* Font Weights */
  --weight-light: 300;
  --weight-normal: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-extrabold: 800;

  /* Line Heights */
  --leading-tight: 1.2;
  --leading-normal: 1.6;
  --leading-relaxed: 1.7;
  --leading-loose: 1.8;

  /* ============================================
     COLOR SYSTEM
     ============================================ */

  /* Base Colors */
  --color-white: #ffffff;
  --color-black: #000000;

  /* Text Colors - BRANDS STANDARD */
  --text-primary: #333333;     /* Dark gray - main text (Brands standard) */
  --text-secondary: #555555;   /* Medium gray - secondary text (Brands standard) */
  --text-muted: #888888;       /* Light gray - muted text (Brands meta) */
  --text-light: #d1d5db;       /* Very light gray */

  /* Legacy support (will be phased out) */
  --color-dark: #333333;       /* Content headings */
  --color-gray: #555555;       /* Content text */
  --color-medium: #888888;     /* Meta text */

  /* Category Colors (Store Types) */
  --color-stores: #ea580c;         /* Orange */
  --color-models: #c026d3;         /* Purple */
  --color-manufacturers: #16a34a;  /* Green */
  --color-collection: #0891b2;     /* Cyan */

  /* Guide/Educational Pages Accent */
  --color-guide: #D73535;          /* Red */
  --color-highlight: #FFD304;      /* Yellow */

  /* Status Colors */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;

  /* Tip Colors */
  --color-tip-bg: #ecfdf5;
  --color-tip-border: #10b981;
  --color-tip-text-primary: #065f46;
  --color-tip-text-secondary: #047857;

  /* Background Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-tertiary: #f3f4f6;
  --bg-dark: #111827;
  --bg-gradient-light: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);

  /* Border Colors */
  --border-light: #e5e7eb;
  --border-medium: #d1d5db;
  --border-dark: #9ca3af;

  /* ============================================
     SPACING SYSTEM
     ============================================ */

  --space-xs: 0.25rem;    /* 4px */
  --space-sm: 0.5rem;     /* 8px */
  --space-md: 0.75rem;    /* 12px */
  --space-lg: 1rem;       /* 16px */
  --space-xl: 1.5rem;     /* 24px */
  --space-2xl: 2rem;      /* 32px */
  --space-3xl: 3rem;      /* 48px */
  --space-4xl: 4rem;      /* 64px */

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

  /* Border Radius - STANDARDIZED to 12px */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;       /* Standard for cards, buttons */
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 8px 24px rgba(0, 0, 0, 0.2);
  --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.12);

  /* Guide-specific shadows */
  --shadow-guide: 0 4px 12px rgba(215, 53, 53, 0.3);
  --shadow-guide-hover: 0 6px 20px rgba(215, 53, 53, 0.4);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Container Max Width */
  --container-max: 1200px;
  --container-narrow: 900px;
}

/* ============================================
   GLOBAL TYPOGRAPHY RULES
   ============================================ */

body {
  font-family: var(--font-primary);
  font-size: var(--font-base);
  font-weight: var(--weight-medium);
  line-height: var(--leading-normal);
  color: var(--text-primary);
}

/* Heading System - STANDARDIZED */
h1 {
  font-size: var(--font-4xl);        /* 2rem - STANDARD (32px) */
  font-weight: var(--weight-bold);   /* 700 - STANDARD */
  line-height: 1.6;                  /* 1.6 - 51.2px for 32px */
  margin-bottom: var(--space-lg);    /* 1rem */
  color: var(--text-primary);        /* #333 */
}

h2 {
  font-size: 1.8rem;                 /* 1.8rem - BRANDS STANDARD */
  font-weight: var(--weight-semibold); /* 600 - BRANDS STANDARD */
  line-height: var(--leading-tight); /* 1.2 */
  margin-bottom: var(--space-xl);    /* 1.5rem */
  color: var(--text-primary);        /* #333 */
}

h3 {
  font-size: var(--font-xl);         /* 1.25rem */
  font-weight: var(--weight-semibold); /* 600 */
  line-height: var(--leading-normal); /* 1.6 */
  margin-bottom: var(--space-md);    /* 0.75rem */
  color: var(--text-primary);        /* #333 */
}

h4 {
  font-size: var(--font-lg);         /* 1.125rem */
  font-weight: var(--weight-semibold); /* 600 */
  line-height: var(--leading-normal); /* 1.6 */
  margin-bottom: var(--space-sm);    /* 0.5rem */
  color: var(--text-primary);        /* #333 */
}

p {
  font-size: var(--font-base);       /* 1rem */
  line-height: var(--leading-relaxed); /* 1.7 */
  margin-bottom: var(--space-lg);    /* 1rem */
  color: var(--text-secondary);      /* #555 */
}

/* ============================================
   COMPONENT SYSTEM - STANDARDIZED
   ============================================ */

/* Button Base - STANDARDIZED */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);  /* 0.75rem 1.5rem - STANDARD */
  border-radius: var(--radius-lg);           /* 12px - STANDARD */
  font-size: var(--font-sm);
  font-weight: var(--weight-semibold);
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all var(--transition-base);
}

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

.btn:active {
  transform: translateY(0);
}

/* Button Variants */
.btn-primary {
  background: linear-gradient(135deg, var(--color-stores) 0%, #dc2626 100%);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-guide {
  background: linear-gradient(135deg, var(--color-guide) 0%, var(--color-guide) 100%);
  color: var(--color-white);
  box-shadow: var(--shadow-guide);
  padding: var(--space-lg) var(--space-2xl);
  border-radius: var(--radius-sm);
  font-size: var(--font-lg);
}

.btn-guide:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-guide-hover);
}

/* Card System - STANDARDIZED */
.card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);      /* 12px - STANDARD */
  padding: var(--space-2xl);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

/* Info Card (for guides) */
.info-card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.info-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.info-card h3 {
  font-size: var(--font-xl);
  color: #374151;
  margin-bottom: var(--space-md);
}

.info-card h3 i {
  color: var(--color-guide);
  margin-right: var(--space-sm);
}

.info-card p {
  font-size: var(--font-base);
  color: #6b7280;
  line-height: var(--leading-loose);
}

/* Hero Section - STANDARDIZED */
.hero {
  padding: var(--space-2xl) 0;
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.hero-title {
  font-size: var(--font-4xl);          /* 2.5rem - STANDARD */
  font-weight: var(--weight-bold);     /* 700 - STANDARD */
  margin-bottom: var(--space-lg);
  line-height: var(--leading-tight);
}

.hero-tagline {
  font-size: var(--font-xl);
  opacity: 0.95;
  max-width: 600px;
  margin: 0 auto;
  line-height: var(--leading-normal);
}

/* Guide Hero (with background image) */
.guide-hero {
  background-size: 30%;
  background-position: center;
  background-repeat: no-repeat;
  color: #2d3748;
  padding: var(--space-2xl) 0;
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.guide-hero h1 {
  font-size: var(--font-4xl);       /* 2.5rem - STANDARD */
  font-weight: var(--weight-bold);  /* 700 - STANDARD */
  margin-bottom: var(--space-lg);
}

.guide-hero .tagline {
  font-size: var(--font-xl);
  opacity: 0.95;
  max-width: 600px;
  margin: 0 auto;
}

/* CTA Section - STANDARDIZED */
.cta-section {
  text-align: center;
  padding: var(--space-3xl) var(--space-2xl);
  margin-top: var(--space-3xl);
}

.cta-section h2 {
  font-size: var(--font-3xl);
  margin-bottom: var(--space-lg);
  color: var(--color-dark);
}

.cta-section p {
  font-size: var(--font-lg);
  margin-bottom: var(--space-2xl);
  color: var(--color-gray);
}

/* Tip Card - STANDARDIZED */
.tip-card {
  background: var(--color-tip-bg);
  border-left: 4px solid var(--color-tip-border);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
}

.tip-card strong {
  color: var(--color-tip-text-primary);
}

.tip-card span {
  color: var(--color-tip-text-secondary);
}

/* Price Card (for guide pages) */
.price-card {
  background: var(--bg-gradient-light);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-lg);
  border-left: 4px solid var(--color-guide);
}

.price-card h3 {
  font-size: var(--font-xl);
  color: var(--color-guide);
  margin-bottom: var(--space-md);
}

.price-card p {
  font-size: var(--font-base);
  color: var(--color-gray);
  line-height: var(--leading-loose);
}

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

@media (max-width: 768px) {
  h1, .hero-title, .guide-hero h1 {
    font-size: var(--font-3xl);  /* 1.875rem on mobile */
  }

  h2 {
    font-size: var(--font-xl);   /* 1.25rem on mobile */
  }

  .hero-tagline, .guide-hero .tagline {
    font-size: var(--font-base);
  }

  .cta-section h2 {
    font-size: var(--font-2xl);
  }

  .btn-guide {
    padding: var(--space-md) var(--space-xl);
    font-size: var(--font-base);
  }
}

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

.container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 var(--space-2xl);
}

.text-center {
  text-align: center;
}

.mb-lg {
  margin-bottom: var(--space-lg);
}

.mb-xl {
  margin-bottom: var(--space-xl);
}

.mb-2xl {
  margin-bottom: var(--space-2xl);
}

.mb-3xl {
  margin-bottom: var(--space-3xl);
}

/* ============================================
   BADGE SYSTEM (From Brands Page)
   ============================================ */

/* Badge Colors */
:root {
  --badge-budget: #10b981;
  --badge-midrange: #3b82f6;
  --badge-premium: #8b5cf6;
  --badge-luxury: #f59e0b;
  --badge-collector: #ef4444;
  --badge-limited: #f97316;
  --badge-beginner: #06b6d4;
  --badge-racing: #dc2626;
  --badge-vintage: #d97706;
}

/* Badge Component */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;        /* Updated from 0.65rem */
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  transition: all 0.2s ease;
  background: transparent;
  border: 1.5px solid;
  line-height: 1;
}

.badge:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

/* Badge Variants */
.badge-budget {
  color: var(--badge-budget);
  border-color: var(--badge-budget);
}

.badge-midrange {
  color: var(--badge-midrange);
  border-color: var(--badge-midrange);
}

.badge-premium {
  color: var(--badge-premium);
  border-color: var(--badge-premium);
}

.badge-luxury {
  color: var(--badge-luxury);
  border-color: var(--badge-luxury);
}

.badge-collector {
  color: var(--badge-collector);
  border-color: var(--badge-collector);
}

.badge-limited {
  color: var(--badge-limited);
  border-color: var(--badge-limited);
}

.badge-beginner {
  color: var(--badge-beginner);
  border-color: var(--badge-beginner);
}

.badge-racing {
  color: var(--badge-racing);
  border-color: var(--badge-racing);
}

.badge-vintage {
  color: var(--badge-vintage);
  border-color: var(--badge-vintage);
}

/* Badge Container */
.brand-badges {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  padding-top: 0.75rem;
  padding-bottom: 0.5rem;
}

/* ============================================
   BRANDS PAGE SPECIFIC COMPONENTS
   ============================================ */

/* Brand Header */
.brand-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.brand-header img {
  width: 60px;
  height: 60px;
  object-fit: contain;
}

.brand-header h2 {
  font-size: 1.8rem;
  color: #111;
  font-weight: 600;
  letter-spacing: -0.5px;
}

/* Brand Introduction Text */
.brand-intro {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

/* Brand Details Grid */
.brand-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 1rem;
}

/* Detail Section */
.detail-section h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: #111;
  font-weight: 900;
  letter-spacing: 0.8px;
  margin-bottom: 0.5rem;
}

.detail-section p,
.detail-section ul {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.detail-section ul {
  list-style: none;
  padding: 0;
}

.detail-section ul li {
  padding-left: 1.5rem;
  position: relative;
}

.detail-section ul li:before {
  content: "✓";
  color: var(--color-success);
  font-weight: bold;
  font-size: 1.1rem;
  position: absolute;
  left: 0;
}

/* Brand Meta Information */
.brand-meta {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  padding-top: 1rem;
  border-top: 1px solid #f0f0f0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.brand-meta span {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.brand-meta a {
  color: #4f46e5;
  text-decoration: none;
}

.brand-meta a:hover {
  text-decoration: underline;
}