/* ============================================
   SP8 Bet - Master CSS Design System
   Style: Luxury Gold (奢华金)
   Version: 1.0.0
   ============================================ */

/* ============================================
   CSS Variables / Design Tokens
   ============================================ */
:root {
  /* Primary Colors - Luxury Gold */
  --color-primary: #D4AF37;
  --color-primary-light: #F4D03F;
  --color-primary-dark: #B8860B;
  --color-primary-rgb: 212, 175, 55;

  /* Background Colors */
  --color-bg-primary: #0D0D0D;
  --color-bg-secondary: #1A1A1A;
  --color-bg-tertiary: #262626;
  --color-bg-card: #1E1E1E;
  --color-bg-hover: #2A2A2A;

  /* Text Colors */
  --color-text-primary: #FFFFFF;
  --color-text-secondary: #B8B8B8;
  --color-text-muted: #808080;
  --color-text-gold: #D4AF37;

  /* Accent Colors */
  --color-success: #28A745;
  --color-warning: #FFC107;
  --color-danger: #DC3545;
  --color-info: #17A2B8;

  /* Gradient */
  --gradient-gold: linear-gradient(135deg, #D4AF37 0%, #F4D03F 50%, #B8860B 100%);
  --gradient-gold-text: linear-gradient(90deg, #D4AF37, #F4D03F, #D4AF37);
  --gradient-dark: linear-gradient(180deg, #1A1A1A 0%, #0D0D0D 100%);
  --gradient-card: linear-gradient(145deg, #1E1E1E 0%, #151515 100%);

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-gold: 0 4px 20px rgba(212, 175, 55, 0.3);
  --shadow-gold-hover: 0 6px 30px rgba(212, 175, 55, 0.4);

  /* Border */
  --border-gold: 1px solid var(--color-primary);
  --border-subtle: 1px solid rgba(212, 175, 55, 0.2);
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 20px;
  --border-radius-full: 9999px;

  /* Typography */
  --font-primary: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Montserrat', 'Inter', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Layout */
  --container-max: 1200px;
  --header-height: 70px;
  --footer-height: auto;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Z-index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-tooltip: 600;
}

/* ============================================
   CSS Reset & Base Styles
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  background-image: var(--gradient-dark);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--font-size-4xl);
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

h5 {
  font-size: var(--font-size-lg);
}

h6 {
  font-size: var(--font-size-base);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-light);
}

strong, b {
  font-weight: 600;
  color: var(--color-text-primary);
}

/* Gold Text Effect */
.text-gold {
  color: var(--color-primary);
}

.text-gradient-gold {
  background: var(--gradient-gold-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================
   Layout Components
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-title h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-sm);
}

.section-title p {
  color: var(--color-text-muted);
  font-size: var(--font-size-lg);
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* Flexbox Utilities */
.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-wrap {
  flex-wrap: wrap;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* ============================================
   Header
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(13, 13, 13, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: var(--border-subtle);
  z-index: var(--z-fixed);
  transition: background var(--transition-normal);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo img {
  height: 45px;
  width: auto;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 700;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.nav-link {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--gradient-gold);
  transition: width var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 80%;
}

/* Mobile Navigation - Hidden by default */
.nav-mobile {
  display: none;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.menu-toggle span {
  width: 25px;
  height: 2px;
  background: var(--color-primary);
  transition: all var(--transition-fast);
}

/* Menu toggle hamburger to X animation */
.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-xl);
  font-family: var(--font-primary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-gold);
  color: var(--color-bg-primary);
  box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold-hover);
  color: var(--color-bg-primary);
}

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

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-bg-primary);
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-2xl);
  font-size: var(--font-size-base);
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-xs);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--border-radius-full);
}

/* CTA Button (Special) */
.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-2xl);
  background: var(--gradient-gold);
  color: var(--color-bg-primary);
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: none;
  border-radius: var(--border-radius-lg);
  cursor: pointer;
  box-shadow: var(--shadow-gold);
  transition: all var(--transition-normal);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.cta-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left var(--transition-slow);
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-gold-hover);
  color: var(--color-bg-primary);
}

.cta-button:hover::before {
  left: 100%;
}

/* ============================================
   Cards
   ============================================ */
.card {
  background: var(--gradient-card);
  border: var(--border-subtle);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-gold);
}

.card-image {
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.card:hover .card-image img {
  transform: scale(1.05);
}

.card-body {
  padding: var(--spacing-lg);
}

.card-title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
}

.card-text {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

/* Feature Card */
.feature-card {
  background: var(--gradient-card);
  border: var(--border-subtle);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-normal);
}

.feature-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-gold);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(212, 175, 55, 0.1);
  border-radius: var(--border-radius-lg);
  font-size: var(--font-size-2xl);
  overflow: hidden;
  border: 1px solid rgba(212, 175, 55, 0.2);
}

.feature-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.feature-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
}

.feature-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  padding-top: calc(var(--header-height) + var(--spacing-3xl));
  padding-bottom: var(--spacing-3xl);
  background: var(--gradient-dark);
  position: relative;
  overflow: hidden;
  min-height: 80vh;
  display: flex;
  align-items: center;
}

/* Hero with background image */
.hero-with-bg {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* Dark overlay for hero background images */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(13, 13, 13, 0.7) 0%, rgba(13, 13, 13, 0.85) 50%, rgba(13, 13, 13, 0.95) 100%);
  pointer-events: none;
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at center top, rgba(212, 175, 55, 0.15) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
}

/* Text shadow for readability on background images */
.hero-with-bg .hero-title,
.hero-with-bg .hero-subtitle {
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.8), 0 4px 40px rgba(0, 0, 0, 0.5);
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  margin-bottom: var(--spacing-lg);
  line-height: 1.1;
}

.hero-title .highlight {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-2xl);
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   Tables
   ============================================ */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--border-radius-lg);
  border: var(--border-subtle);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-bg-card);
}

th, td {
  padding: var(--spacing-md) var(--spacing-lg);
  text-align: left;
  border-bottom: var(--border-subtle);
}

th {
  background: rgba(212, 175, 55, 0.1);
  color: var(--color-primary);
  font-weight: 600;
  text-transform: uppercase;
  font-size: var(--font-size-sm);
  letter-spacing: 0.5px;
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background: var(--color-bg-hover);
}

/* ============================================
   Forms
   ============================================ */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-md);
  background: var(--color-bg-secondary);
  border: var(--border-subtle);
  border-radius: var(--border-radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

/* ============================================
   Lists
   ============================================ */
.list-styled {
  list-style: none;
  padding: 0;
}

.list-styled li {
  position: relative;
  padding-left: var(--spacing-xl);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
}

.list-styled li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: bold;
}

.list-numbered {
  list-style: none;
  padding: 0;
  counter-reset: item;
}

.list-numbered li {
  position: relative;
  padding-left: var(--spacing-2xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
  counter-increment: item;
}

.list-numbered li::before {
  content: counter(item);
  position: absolute;
  left: 0;
  width: 28px;
  height: 28px;
  background: rgba(212, 175, 55, 0.1);
  border: 1px solid var(--color-primary);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  font-weight: 600;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--color-bg-secondary);
  border-top: var(--border-subtle);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  height: 40px;
  margin-bottom: var(--spacing-md);
}

.footer-brand p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

.footer-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  padding-top: var(--spacing-xl);
  border-top: var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-copyright {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.footer-legal {
  display: flex;
  gap: var(--spacing-lg);
}

.footer-legal a {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ============================================
   Badges & Tags
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: var(--border-radius-sm);
}

.badge-gold {
  background: rgba(212, 175, 55, 0.2);
  color: var(--color-primary);
}

.badge-success {
  background: rgba(40, 167, 69, 0.2);
  color: var(--color-success);
}

.badge-danger {
  background: rgba(220, 53, 69, 0.2);
  color: var(--color-danger);
}

/* ============================================
   Accordion / FAQ
   ============================================ */
.accordion {
  border: var(--border-subtle);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.accordion-item {
  border-bottom: var(--border-subtle);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  width: 100%;
  padding: var(--spacing-lg);
  background: var(--color-bg-card);
  border: none;
  color: var(--color-text-primary);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background var(--transition-fast);
}

.accordion-header:hover {
  background: var(--color-bg-hover);
}

.accordion-header.active {
  color: var(--color-primary);
}

.accordion-icon {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
}

.accordion-header.active .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  background: var(--color-bg-card);
  color: var(--color-text-secondary);
  display: none;
}

.accordion-content.active {
  display: block;
}

/* ============================================
   Alerts / Info Boxes
   ============================================ */
.alert {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-md);
}

.alert-info {
  background: rgba(23, 162, 184, 0.1);
  border-left: 4px solid var(--color-info);
  color: var(--color-info);
}

.alert-warning {
  background: rgba(255, 193, 7, 0.1);
  border-left: 4px solid var(--color-warning);
  color: var(--color-warning);
}

.alert-success {
  background: rgba(40, 167, 69, 0.1);
  border-left: 4px solid var(--color-success);
  color: var(--color-success);
}

.alert-gold {
  background: rgba(212, 175, 55, 0.1);
  border-left: 4px solid var(--color-primary);
  color: var(--color-primary);
}

/* ============================================
   Progress Bar
   ============================================ */
.progress {
  height: 8px;
  background: var(--color-bg-tertiary);
  border-radius: var(--border-radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--gradient-gold);
  border-radius: var(--border-radius-full);
  transition: width var(--transition-normal);
}

/* ============================================
   Stats / Numbers
   ============================================ */
.stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-2xl);
  flex-wrap: wrap;
}

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

.stat-number {
  font-family: var(--font-heading);
  font-size: var(--font-size-4xl);
  font-weight: 800;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ============================================
   Breadcrumb
   ============================================ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) 0;
  font-size: var(--font-size-sm);
}

.breadcrumb a {
  color: var(--color-text-muted);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb-separator {
  color: var(--color-text-muted);
}

.breadcrumb-current {
  color: var(--color-primary);
}

/* ============================================
   Image Handling
   ============================================ */
.img-responsive {
  max-width: 100%;
  height: auto;
  display: block;
}

.img-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.img-rounded {
  border-radius: var(--border-radius-lg);
}

.img-gold-border {
  border: 2px solid var(--color-primary);
  border-radius: var(--border-radius-lg);
}

/* ============================================
   Utility Classes
   ============================================ */
/* Text Alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Spacing */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.pt-0 { padding-top: 0; }
.pt-1 { padding-top: var(--spacing-sm); }
.pt-2 { padding-top: var(--spacing-md); }
.pt-3 { padding-top: var(--spacing-lg); }
.pt-4 { padding-top: var(--spacing-xl); }

.pb-0 { padding-bottom: 0; }
.pb-1 { padding-bottom: var(--spacing-sm); }
.pb-2 { padding-bottom: var(--spacing-md); }
.pb-3 { padding-bottom: var(--spacing-lg); }
.pb-4 { padding-bottom: var(--spacing-xl); }

/* Display */
.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

/* Width */
.w-100 { width: 100%; }
.w-auto { width: auto; }

/* Visibility */
.visible { visibility: visible; }
.invisible { visibility: hidden; }

/* ============================================
   Responsive Breakpoints
   ============================================ */
/* Tablet: max-width 1024px */
@media (max-width: 1024px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.5rem;
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .nav-list {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  /* Mobile Navigation */
  .nav-mobile {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg-secondary);
    border-bottom: var(--border-subtle);
    padding: var(--spacing-lg);
    display: none;
  }

  .nav-mobile.active {
    display: block;
  }

  .nav-mobile .nav-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .nav-mobile .nav-link {
    display: block;
    padding: var(--spacing-md);
  }
}

/* Mobile: max-width 768px */
@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2rem;
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.375rem;
    --spacing-3xl: 2.5rem;
    --spacing-2xl: 2rem;
  }

  .hero {
    padding-top: calc(var(--header-height) + var(--spacing-2xl));
    padding-bottom: var(--spacing-2xl);
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-brand {
    max-width: 100%;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .stats {
    gap: var(--spacing-xl);
  }

  .stat-number {
    font-size: var(--font-size-3xl);
  }

  table {
    font-size: var(--font-size-sm);
  }

  th, td {
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .cta-button {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
  }
}

/* Small Mobile: max-width 480px */
@media (max-width: 480px) {
  :root {
    --font-size-5xl: 1.75rem;
    --font-size-4xl: 1.5rem;
    --header-height: 60px;
  }

  .logo img {
    height: 35px;
  }

  .btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-xs);
  }

  .card-body {
    padding: var(--spacing-md);
  }

  .feature-card {
    padding: var(--spacing-lg);
  }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
  .header,
  .footer,
  .cta-button,
  .btn {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  a {
    color: black;
    text-decoration: underline;
  }
}

/* ============================================
   Animation Keyframes
   ============================================ */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.animate-fadeIn {
  animation: fadeIn 0.5s ease forwards;
}

.animate-slideUp {
  animation: slideUp 0.5s ease forwards;
}

.animate-pulse {
  animation: pulse 2s ease infinite;
}

/* Gold Shimmer Effect */
.shimmer {
  background: linear-gradient(
    90deg,
    var(--color-primary) 0%,
    var(--color-primary-light) 50%,
    var(--color-primary) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}

/* ============================================
   Additional Layout Utilities
   ============================================ */
/* Content Block with Image (Left/Right layouts) */
.content-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.content-block-reverse {
  grid-template-columns: 1fr 1fr;
}

.content-block-reverse > :first-child {
  order: 2;
}

.content-block-reverse > :last-child {
  order: 1;
}

@media (max-width: 768px) {
  .content-block,
  .content-block-reverse {
    grid-template-columns: 1fr;
  }

  .content-block-reverse > :first-child,
  .content-block-reverse > :last-child {
    order: unset;
  }
}

/* Content Text styling */
.content-text {
  padding: var(--spacing-lg) 0;
}

.content-text p {
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
}

.content-text p:last-child {
  margin-bottom: 0;
}

/* Info Table styling */
.info-table {
  background: var(--gradient-card);
  border: var(--border-subtle);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
}

.info-table h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-xl);
}

/* Image container with consistent aspect ratio */
.img-container {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius-lg);
}

.img-container img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-normal);
}

.img-container:hover img {
  transform: scale(1.03);
}

/* Better spacing for sections */
.section + .section {
  margin-top: 0;
}

/* Alert boxes improved */
.alert {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* Stats section improved */
.stats {
  padding: var(--spacing-2xl) 0;
}

/* Feature card improvements */
.feature-card {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.feature-card p {
  flex-grow: 1;
}

.feature-card .btn {
  margin-top: auto;
}

/* Mobile touch-friendly buttons */
@media (max-width: 768px) {
  .btn {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .btn-sm {
    min-height: 44px;
  }

  /* Ensure clickable areas are large enough */
  .nav-link,
  .footer-links a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }
}

/* Better image in grid layouts */
.grid img {
  max-width: 100%;
  height: auto;
}

/* Ensure proper vertical rhythm */
.section > .container > *:last-child {
  margin-bottom: 0;
}

/* Consistent card heights in grid */
.grid-3 .feature-card,
.grid-4 .feature-card {
  height: 100%;
}