/* ==========================================================================
   Bet VIP Brasil - Master CSS
   Style: Luxury Gold Casino (豪华金色赌场)
   ========================================================================== */

/* ==========================================================================
   1. CSS Variables & Design Tokens
   ========================================================================== */
:root {
  /* Primary Colors */
  --color-primary: #D4AF37;
  --color-primary-light: #FFD700;
  --color-primary-dark: #B8962E;

  /* Background Colors */
  --color-bg-primary: #0A0A0A;
  --color-bg-secondary: #111111;
  --color-bg-tertiary: #1A1A1A;
  --color-bg-card: #151515;

  /* Text Colors */
  --color-text-primary: #FFFFFF;
  --color-text-secondary: #CCCCCC;
  --color-text-muted: #888888;
  --color-text-gold: #D4AF37;

  /* Accent Colors */
  --color-success: #28a745;
  --color-warning: #ffc107;
  --color-danger: #dc3545;
  --color-info: #17a2b8;

  /* VIP Tier Colors */
  --color-bronze: #CD7F32;
  --color-silver: #C0C0C0;
  --color-gold: #FFD700;
  --color-platinum: #E5E4E2;
  --color-diamond: #B9F2FF;

  /* Gradients */
  --gradient-gold: linear-gradient(135deg, #D4AF37 0%, #FFD700 50%, #D4AF37 100%);
  --gradient-gold-dark: linear-gradient(135deg, #B8962E 0%, #D4AF37 100%);
  --gradient-bg: linear-gradient(180deg, #0A0A0A 0%, #1A1A1A 100%);
  --gradient-card: linear-gradient(145deg, #1A1A1A 0%, #111111 100%);

  /* Typography */
  --font-primary: 'Playfair Display', Georgia, serif;
  --font-secondary: 'Cinzel', 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  /* Spacing (8px grid system) */
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.5rem;   /* 8px - adjusted for 8px grid */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.5rem;   /* 24px - adjusted for 8px grid */
  --space-6: 1.5rem;   /* 24px */
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.5);
  --shadow-gold: 0 4px 15px rgba(212, 175, 55, 0.3);
  --shadow-gold-lg: 0 8px 30px rgba(212, 175, 55, 0.4);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;

  /* Z-index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;

  /* Container */
  --container-max: 1400px;
  --container-padding: 1.5rem;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  min-height: 100vh;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* ==========================================================================
   3. Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

h1 {
  font-size: var(--text-5xl);
  text-shadow: 0 0 20px rgba(212, 175, 55, 0.3);
}

h2 {
  font-size: var(--text-4xl);
  color: var(--color-primary);
}

h3 {
  font-size: var(--text-3xl);
}

h4 {
  font-size: var(--text-2xl);
}

h5 {
  font-size: var(--text-xl);
}

h6 {
  font-size: var(--text-lg);
}

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
}

.text-gold {
  color: var(--color-primary);
}

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

/* ==========================================================================
   4. Layout & Container
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--space-16) 0;
}

.section-lg {
  padding: var(--space-24) 0;
}

/* ==========================================================================
   5. Header & Navigation
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(212, 175, 55, 0.2);
  transition: all var(--transition-base);
}

.header.scrolled {
  background: rgba(10, 10, 10, 0.98);
  box-shadow: var(--shadow-gold);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.logo img {
  height: 50px;
  width: auto;
}

.logo-text {
  font-family: var(--font-secondary);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
  text-shadow: 0 0 10px rgba(212, 175, 55, 0.5);
}

/* Main Navigation */
.nav-main {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--color-primary);
  background: rgba(212, 175, 55, 0.1);
}

.nav-link.active {
  color: var(--color-primary);
  background: rgba(212, 175, 55, 0.15);
}

/* Header CTA Buttons */
.header-cta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 30px;
  height: 30px;
  cursor: pointer;
}

.mobile-menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  transition: all var(--transition-fast);
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

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

/* Mobile Navigation */
.nav-mobile {
  display: none;
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: calc(100vh - 80px);
  background-color: #0A0A0A !important;
  padding: var(--space-6);
  overflow-y: auto;
  z-index: 99999 !important;
}

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

/* Prevent body scroll when menu is open */
body.menu-open {
  overflow: hidden;
}

.nav-mobile-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.nav-mobile-link {
  display: block;
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid rgba(212, 175, 55, 0.1);
  transition: all var(--transition-fast);
}

.nav-mobile-link:hover,
.nav-mobile-link.active {
  color: var(--color-primary);
  background: rgba(212, 175, 55, 0.1);
  border-color: var(--color-primary);
}

.nav-mobile-cta {
  margin-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* ==========================================================================
   6. Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-gold);
  color: var(--color-bg-primary);
  border: none;
  box-shadow: var(--shadow-gold);
}

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

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

.btn-secondary:hover {
  background: rgba(212, 175, 55, 0.1);
  color: var(--color-primary-light);
  border-color: var(--color-primary-light);
}

.btn-lg {
  font-size: var(--text-base);
  padding: var(--space-4) var(--space-8);
}

.btn-sm {
  font-size: var(--text-xs);
  padding: var(--space-2) var(--space-4);
}

.btn-block {
  width: 100%;
}

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:active {
  transform: scale(0.98);
  background: rgba(212, 175, 55, 0.2);
}

/* ==========================================================================
   7. Hero Section
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 80px;
  overflow: hidden;
  z-index: 1;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
}

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

.hero-bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    180deg,
    rgba(10, 10, 10, 0.7) 0%,
    rgba(10, 10, 10, 0.5) 50%,
    rgba(10, 10, 10, 0.9) 100%
  );
}

.hero-content {
  text-align: center;
  max-width: 900px;
  padding: var(--space-8);
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-secondary);
  font-size: var(--text-sm);
  color: var(--color-primary);
  background: rgba(212, 175, 55, 0.1);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid rgba(212, 175, 55, 0.3);
  margin-bottom: var(--space-6);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.hero-title {
  font-family: var(--font-primary);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-6);
  text-shadow: 0 0 30px rgba(212, 175, 55, 0.3);
}

.hero-title span {
  color: var(--color-primary);
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

.hero-features {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  margin-top: var(--space-12);
  flex-wrap: wrap;
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-secondary);
}

.hero-feature-icon {
  color: var(--color-primary);
  font-size: var(--text-xl);
}

/* ==========================================================================
   8. Cards
   ========================================================================== */
.card {
  background: var(--gradient-card);
  border: 1px solid rgba(212, 175, 55, 0.15);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: rgba(212, 175, 55, 0.4);
  box-shadow: var(--shadow-gold);
  transform: translateY(-5px);
}

.card-header {
  margin-bottom: var(--space-4);
}

.card-title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-2);
}

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

.card-footer {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(212, 175, 55, 0.1);
}

/* Feature Cards */
.feature-card {
  text-align: center;
  padding: var(--space-8);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(212, 175, 55, 0.1);
  border-radius: var(--radius-xl);
  color: var(--color-primary);
  font-size: var(--text-4xl);
}

/* ==========================================================================
   9. Content Sections
   ========================================================================== */
.content-section {
  padding: var(--space-16) 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-12);
}

.section-badge {
  display: inline-block;
  font-family: var(--font-secondary);
  font-size: var(--text-xs);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: var(--space-3);
}

.section-title {
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: var(--space-6);
}

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

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

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

/* Content Block */
.content-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
  padding: var(--space-12) 0;
}

.content-block.reverse {
  direction: rtl;
}

.content-block.reverse > * {
  direction: ltr;
}

.content-block-text {
  padding: var(--space-4);
}

.content-block-image {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 2px solid rgba(212, 175, 55, 0.2);
}

.content-block-image img {
  width: 100%;
  height: auto;
  transition: transform var(--transition-slow);
}

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

/* Feature Lists */
.feature-list {
  list-style: none;
  padding: 0;
  margin: var(--space-4) 0;
}

.feature-list li {
  position: relative;
  padding-left: var(--space-8);
  margin-bottom: var(--space-3);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.feature-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-primary);
  font-weight: 700;
  font-size: var(--text-lg);
}

.feature-list li strong {
  color: var(--color-text-primary);
}

/* ==========================================================================
   10. Tables
   ========================================================================== */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(212, 175, 55, 0.2);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: var(--space-4);
  text-align: left;
  border-bottom: 1px solid rgba(212, 175, 55, 0.1);
}

th {
  background: rgba(212, 175, 55, 0.1);
  font-family: var(--font-secondary);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  font-size: var(--text-sm);
  letter-spacing: 1px;
}

tr:hover {
  background: rgba(212, 175, 55, 0.05);
}

/* VIP Table */
.vip-table th:first-child,
.vip-table td:first-child {
  font-weight: 600;
}

.tier-bronze { color: var(--color-bronze); }
.tier-silver { color: var(--color-silver); }
.tier-gold { color: var(--color-gold); }
.tier-platinum { color: var(--color-platinum); }
.tier-diamond { color: var(--color-diamond); }

/* ==========================================================================
   11. Forms
   ========================================================================== */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--space-2);
  color: var(--color-text-secondary);
}

.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-tertiary);
  border: 1px solid rgba(212, 175, 55, 0.2);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  transition: all var(--transition-fast);
}

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

/* ==========================================================================
   12. FAQ / Accordion
   ========================================================================== */
.accordion {
  border: 1px solid rgba(212, 175, 55, 0.2);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.accordion-item {
  border-bottom: 1px solid rgba(212, 175, 55, 0.1);
}

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

.accordion-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  background: transparent;
  color: var(--color-text-primary);
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.accordion-header:hover {
  background: rgba(212, 175, 55, 0.05);
  color: var(--color-primary);
}

.accordion-icon {
  color: var(--color-primary);
  transition: transform var(--transition-fast);
}

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

.accordion-content {
  display: none;
  padding: 0 var(--space-6) var(--space-4);
  color: var(--color-text-secondary);
}

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

/* ==========================================================================
   13. Footer
   ========================================================================== */
.footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid rgba(212, 175, 55, 0.2);
  padding-top: var(--space-16);
}

.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: var(--space-8);
  padding-bottom: var(--space-12);
}

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

.footer-logo {
  margin-bottom: var(--space-4);
}

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

.footer-description {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
}

.footer-title {
  font-family: var(--font-secondary);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-4);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

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

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

/* Payment Methods */
.footer-payments {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.footer-payment-icon {
  height: 30px;
  width: auto;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.footer-payment-icon:hover {
  opacity: 1;
}

/* Responsible Gaming */
.footer-responsible {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-6);
  background: rgba(212, 175, 55, 0.05);
  border: 1px solid rgba(212, 175, 55, 0.1);
  border-radius: var(--radius-lg);
  margin-top: var(--space-8);
}

.footer-responsible-icons {
  display: flex;
  gap: var(--space-3);
}

.footer-responsible-icon {
  width: 50px;
  height: 50px;
}

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

.footer-responsible-text strong {
  color: var(--color-text-secondary);
  display: block;
  margin-bottom: var(--space-1);
}

/* Footer Bottom */
.footer-bottom {
  border-top: 1px solid rgba(212, 175, 55, 0.1);
  padding: var(--space-6) 0;
}

.footer-bottom-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

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

.footer-legal-links {
  display: flex;
  gap: var(--space-6);
}

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

.footer-legal-link:hover {
  color: var(--color-primary);
}

/* Affiliate Disclosure */
.footer-affiliate {
  text-align: center;
  padding: var(--space-4);
  background: rgba(212, 175, 55, 0.03);
  border-top: 1px solid rgba(212, 175, 55, 0.1);
}

.footer-affiliate p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin: 0;
}

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

/* Margin Utilities */
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }

/* Padding Utilities */
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

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

/* Flex Utilities */
.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-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

/* Background Utilities */
.bg-dark { background: var(--color-bg-secondary); }
.bg-card { background: var(--gradient-card); }

/* Border Utilities */
.border-gold {
  border: 1px solid rgba(212, 175, 55, 0.3);
}

/* ==========================================================================
   15. Responsive Design
   ========================================================================== */
@media (max-width: 1200px) {
  .nav-link {
    font-size: var(--text-xs);
    padding: var(--space-2);
  }

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

  .footer-brand {
    grid-column: span 3;
    max-width: 100%;
    text-align: center;
    margin-bottom: var(--space-4);
  }
}

@media (max-width: 992px) {
  .nav-main {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .header-cta {
    display: none;
  }

  .content-block {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .content-block.reverse {
    direction: ltr;
  }

  .grid-3, .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer-brand {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 1rem;
  }

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

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

  .hero {
    min-height: auto;
    padding: calc(80px + var(--space-12)) 0 var(--space-12);
  }

  .hero-content {
    padding: var(--space-4);
  }

  .hero-features {
    gap: var(--space-4);
  }

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

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

  .footer-brand {
    grid-column: span 1;
  }

  .footer-links {
    align-items: center;
  }

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

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

  .section {
    padding: var(--space-10) 0;
  }
}

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
  }

  .hero-cta .btn {
    width: 100%;
  }

  .btn-lg {
    padding: var(--space-3) var(--space-6);
  }

  /* Ensure minimum touch target size of 48px */
  .btn {
    min-height: 48px;
    padding: var(--space-3) var(--space-4);
  }

  .nav-mobile-link {
    min-height: 48px;
    display: flex;
    align-items: center;
  }
}

/* ==========================================================================
   16. Animations
   ========================================================================== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

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

.animate-fadeIn {
  animation: fadeIn var(--transition-base) ease forwards;
}

.animate-fadeInUp {
  animation: fadeInUp var(--transition-base) ease forwards;
}

/* 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;
}

/* ==========================================================================
   17. Print Styles
   ========================================================================== */
@media print {
  .header,
  .footer,
  .btn,
  .nav-mobile {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }

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