/* Professional Crypto Exchange Landing Page */

:root {
  --primary: #0066ff;
  --primary-dark: #0052cc;
  --secondary: #0a192f;
  --accent: #ff9500;
  --success: #0ecb81;
  --danger: #f6465d;
  --warning: #ff3d7f;
  --bg-dark: #0f172a;
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  --text-dark: #0f172a;
  --text-gray: #6b7280;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', system-ui, Segoe UI, Arial, sans-serif;
  background: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.6;
}

/* Navigation */
.navbar {
  background: white;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 18px;
}

.nav-logo {
  width: 40px;
  height: 40px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
}

.nav-text {
  color: var(--text-dark);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-link {
  color: var(--text-dark);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-link:hover {
  color: var(--accent);
}

.nav-btn-signin {
  padding: 8px 20px;
  background: var(--accent);
  color: white;
  border-radius: 6px;
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  transition: background 0.3s;
}

.nav-btn-signin:hover {
  background: #1556e8;
}

.nav-select {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: white;
  color: var(--text-dark);
  font-size: 13px;
  cursor: pointer;
}

/* Hero Section */
.hero {
  position: relative;
  background: linear-gradient(135deg, #0a192f 0%, #1a2f5a 100%);
  color: white;
  padding: 60px 20px;
  overflow: hidden;
  min-height: 900px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 0.3;
  z-index: 0;
}

.hero-background canvas {
  width: 100%;
  height: 100%;
}

.hero-content {
  max-width: 500px;
  z-index: 1;
  position: relative;
}

.hero-title {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 15px;
  color: white;
}

.hero-subtitle {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 10px;
  color: rgba(255, 255, 255, 0.9);
}

.hero-description {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 30px;
}

.hero-buttons {
  display: flex;
  gap: 15px;
}

.btn {
  padding: 14px 28px;
  border: none;
  border-radius: 8px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

.btn-primary {
  background: #ff3d7f;
  color: white;
}

.btn-primary:hover {
  background: #e6326f;
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* Hero Chart */
.hero-chart {
  flex: 1;
  position: relative;
  z-index: 1;
  margin-left: 40px;
}

.chart-container {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  max-width: 700px;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--border-color);
}

.chart-nav {
  display: flex;
  gap: 20px;
}

.chart-tab {
  font-size: 13px;
  font-weight: 600;
  color: #6b7280;
  cursor: pointer;
  padding-bottom: 5px;
  border-bottom: 2px solid transparent;
  transition: all 0.3s;
}

.chart-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.chart-controls {
  display: flex;
  gap: 10px;
}

.control-btn {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border-color);
  background: white;
  border-radius: 6px;
  cursor: pointer;
  font-size: 16px;
  transition: all 0.3s;
}

.control-btn:hover {
  background: #f3f4f6;
  border-color: var(--accent);
}

.chart-main {
  margin-bottom: 25px;
  border-radius: 12px;
  overflow: hidden;
  background: #f9fafb;
}

.tradingview-widget-container {
  background: white;
}

/* Chart Stats */
.chart-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 15px;
  margin-bottom: 25px;
}

.stat-item {
  text-align: center;
  padding: 15px;
  background: #f9fafb;
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

.stat-label {
  font-size: 11px;
  color: #6b7280;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 10px;
}

.stat-circle {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--accent), #1556e8);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin: 0 auto 8px;
}

.stat-percent {
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
}

/* Chart Footer */
.chart-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding: 15px;
  background: #f9fafb;
  border-radius: 10px;
}

.chart-info {
  display: flex;
  gap: 20px;
  align-items: center;
}

.info-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.info-label {
  font-size: 11px;
  color: #6b7280;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 5px;
}

.info-value {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
}

.info-select {
  padding: 6px 10px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: white;
  font-size: 12px;
  cursor: pointer;
}

.chart-actions {
  display: flex;
  gap: 10px;
}

.action-btn {
  flex: 1;
  padding: 12px;
  border: none;
  border-radius: 8px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s;
}

.buy-btn {
  background: var(--success-green);
  color: white;
}

.buy-btn:hover {
  background: #0db870;
  transform: translateY(-2px);
}

.sell-btn {
  background: var(--danger-red);
  color: white;
}

.sell-btn:hover {
  background: #e63558;
  transform: translateY(-2px);
}

/* Chart Graphs */
.chart-graphs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
}

.graph-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
}

.mini-graph {
  background: #f9fafb;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 15px;
  text-align: center;
}

.mini-graph canvas {
  max-height: 80px;
  margin-bottom: 8px;
}

.mini-label {
  font-size: 11px;
  color: #6b7280;
  text-transform: uppercase;
  font-weight: 600;
}

/* Features Section */
.features {
  padding: 80px 20px;
  background: white;
}

.features-container {
  max-width: 1200px;
  margin: 0 auto;
}

.features-container h2 {
  text-align: center;
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 60px;
  color: var(--text-dark);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.feature-card {
  padding: 30px;
  background: #f9fafb;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  text-align: center;
  transition: all 0.3s;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
  border-color: var(--accent);
}

.feature-icon {
  font-size: 40px;
  margin-bottom: 15px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-dark);
}

.feature-card p {
  font-size: 14px;
  color: #6b7280;
}

/* Trading Accounts Section */
.trading-accounts {
  padding: 80px 20px;
  background: linear-gradient(135deg, #f9fafb 0%, #ffffff 100%);
}

.accounts-container {
  max-width: 1200px;
  margin: 0 auto;
}

.accounts-container h2 {
  text-align: center;
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 60px;
  color: var(--text-dark);
}

.accounts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.account-card {
  background: white;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  padding: 30px;
  position: relative;
  transition: all 0.3s;
}

.account-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
  border-color: var(--accent);
}

.account-card.featured {
  border-color: var(--accent-gold);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.15);
}

.featured-badge {
  position: absolute;
  top: -15px;
  right: 30px;
  background: var(--accent-gold);
  color: white;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
}

.account-icon {
  font-size: 40px;
  margin-bottom: 15px;
  display: block;
}

.account-card h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-dark);
}

.account-desc {
  font-size: 14px;
  color: #6b7280;
  margin-bottom: 20px;
}

.account-features {
  list-style: none;
  margin-bottom: 25px;
}

.account-features li {
  padding: 8px 0;
  font-size: 14px;
  color: var(--text-dark);
  border-bottom: 1px solid var(--border-color);
}

.account-features li:last-child {
  border-bottom: none;
}

.account-btn {
  display: block;
  width: 100%;
  padding: 12px;
  background: var(--accent);
  color: white;
  border-radius: 8px;
  text-align: center;
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
  transition: all 0.3s;
}

.account-btn:hover {
  background: #1556e8;
  transform: translateY(-2px);
}

/* VIP Section */
.vip-section {
  padding: 80px 20px;
  background: white;
}

.vip-container {
  max-width: 1200px;
  margin: 0 auto;
}

.vip-container h2 {
  text-align: center;
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 60px;
  color: var(--text-dark);
}

.vip-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.vip-card {
  background: #f9fafb;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  padding: 40px 25px;
  text-align: center;
  position: relative;
  transition: all 0.3s;
}

.vip-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}

.vip-card.gold {
  border-color: var(--accent-gold);
  background: linear-gradient(135deg, #fffbf0 0%, #fff8e7 100%);
  transform: scale(1.05);
}

.vip-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: white;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
}

.vip-tier {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--accent-gold), #f59e0b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.vip-minimum {
  font-size: 14px;
  color: #6b7280;
  margin-bottom: 25px;
  font-weight: 600;
}

.vip-benefits {
  text-align: left;
  margin-bottom: 25px;
}

.vip-benefits p {
  padding: 10px 0;
  font-size: 14px;
  color: var(--text-dark);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.vip-benefits p:last-child {
  border-bottom: none;
}

/* Trust Section */
.trust-section {
  padding: 80px 20px;
  background: linear-gradient(135deg, #0a192f 0%, #1a2f5a 100%);
  color: white;
}

.trust-container {
  max-width: 1200px;
  margin: 0 auto;
}

.trust-container h2 {
  text-align: center;
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 60px;
  color: white;
}

.badges-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  margin-bottom: 60px;
}

.badge {
  text-align: center;
  padding: 30px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  backdrop-filter: blur(10px);
}

.badge-icon {
  font-size: 40px;
  margin-bottom: 12px;
  display: block;
}

.badge p {
  font-size: 14px;
  font-weight: 600;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  text-align: center;
}

.stat {
  padding: 30px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
}

.stat-big {
  font-size: 32px;
  font-weight: 800;
  color: var(--accent-gold);
  display: block;
  margin-bottom: 8px;
}

.stat p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}

/* FAQ Section */
.faq {
  padding: 80px 20px;
  background: white;
}

.faq-container {
  max-width: 1000px;
  margin: 0 auto;
}

.faq-container h2 {
  text-align: center;
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 60px;
  color: var(--text-dark);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.faq-item {
  padding: 25px;
  background: #f9fafb;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.faq-item h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.faq-item p {
  font-size: 14px;
  color: #6b7280;
  line-height: 1.6;
}

/* Footer */
.footer {
  background: var(--bg-dark);
  color: white;
  padding: 50px 20px 20px;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h4 {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 20px;
  color: white;
}

.footer-section a {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 13px;
  margin-bottom: 10px;
  transition: color 0.3s;
}

.footer-section a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
}

/* Responsive */
@media (max-width: 1024px) {
  .hero {
    flex-direction: column;
    min-height: auto;
  }

  .hero-chart {
    margin-left: 0;
    margin-top: 40px;
    width: 100%;
  }

  .chart-container {
    max-width: 100%;
  }

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

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

  .account-card.featured {
    transform: none;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    gap: 15px;
  }

  .nav-link {
    display: none;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .chart-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
  }

  .chart-info {
    flex-direction: column;
    gap: 10px;
    width: 100%;
  }

  .chart-info {
    align-items: flex-start;
  }

  .chart-graphs {
    grid-template-columns: 1fr;
  }

  .graph-row {
    grid-template-columns: 1fr;
  }

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

  .vip-card.gold {
    transform: none;
  }
}