/* CSS Reset & Custom Properties */
:root {
  --color-primary: #06b6d4;
  --color-primary-glow: rgba(6, 182, 212, 0.5);
  --color-secondary: #0891b2;
  --color-accent: #67e8f9;
  --color-accent-glow: rgba(103, 232, 249, 0.3);
  --color-bg-from: #042f2e;
  --color-bg-via: #134e4a;
  --color-bg-to: #021716;
  --color-card-bg: rgba(19, 78, 74, 0.6);
  --color-card-border: rgba(6, 182, 212, 0.25);
  --font-heading: Montserrat, system-ui, sans-serif;
  --font-body: 'Open Sans', system-ui, sans-serif;
  --font-mono: 'Source Code Pro', monospace;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --hover-scale: 1.02;
  --radius-sm: 8px;
}

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

body {
  font-family: var(--font-body);
  font-weight: 400;
  background: linear-gradient(135deg, var(--color-bg-from) 0%, var(--color-bg-via) 50%, var(--color-bg-to) 100%);
  color: #e5e7eb;
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
}

body::before {
  content: '♠ ♥ ♦ ♣';
  position: fixed;
  top: 10%;
  right: 5%;
  font-size: 120px;
  opacity: 0.03;
  color: var(--color-accent);
  z-index: 0;
  pointer-events: none;
}

body::after {
  content: '♠ ♥ ♦ ♣';
  position: fixed;
  bottom: 10%;
  left: 5%;
  font-size: 120px;
  opacity: 0.03;
  color: var(--color-accent);
  z-index: 0;
  pointer-events: none;
}

.t504-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

/* Header & Navigation */
.t504-header {
  position: sticky;
  top: 0;
  background: rgba(4, 47, 46, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-card-border);
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.t504-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
}

.t504-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 24px;
}

.t504-logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.t504-nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
  list-style: none;
}

.t504-nav-links a {
  color: #e5e7eb;
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
}

.t504-nav-links a:hover {
  color: var(--color-accent);
}

.t504-age-badge {
  background: linear-gradient(135deg, #dc2626, #991b1b);
  color: white;
  padding: 6px 14px;
  border-radius: 4px;
  font-weight: 800;
  font-size: 14px;
  border: 2px solid #dc2626;
}

.t504-mobile-toggle {
  display: none;
  background: none;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 20px;
}

/* Hero Section */
.t504-hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.t504-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.1) 0%, rgba(4, 47, 46, 0.9) 100%);
  z-index: 0;
}

.t504-hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.t504-hero-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 64px;
  line-height: 1.1;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.t504-hero-subtitle {
  font-size: 22px;
  margin-bottom: 40px;
  color: #d1d5db;
}

.t504-btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
  padding: 16px 48px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 700;
  font-size: 18px;
  border: 2px solid var(--color-primary);
  transition: all var(--transition);
  cursor: pointer;
  box-shadow: 0 0 30px var(--color-primary-glow);
}

.t504-btn-primary:hover {
  transform: scale(var(--hover-scale));
  box-shadow: 0 0 50px var(--color-primary-glow);
}

/* Corner Badge Decoration */
.t504-corner-badge {
  position: absolute;
  width: 100px;
  height: 100px;
  background: linear-gradient(135deg, var(--color-primary), transparent);
  opacity: 0.15;
}

.t504-corner-badge-tl {
  top: 0;
  left: 0;
  border-top-left-radius: var(--radius-sm);
}

.t504-corner-badge-br {
  bottom: 0;
  right: 0;
  border-bottom-right-radius: var(--radius-sm);
}

/* Glow Divider Decoration */
.t504-glow-divider {
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  margin: 60px 0;
  box-shadow: 0 0 20px var(--color-primary-glow);
}

/* Download Section */
.t504-download-section {
  padding: 60px 0;
  text-align: center;
}

.t504-section-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 42px;
  margin-bottom: 16px;
  color: var(--color-accent);
}

.t504-section-subtitle {
  font-size: 18px;
  color: #d1d5db;
  margin-bottom: 40px;
}

.t504-download-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-sm);
  padding: 48px;
  max-width: 600px;
  margin: 0 auto;
  backdrop-filter: blur(10px);
}

.t504-email-form {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.t504-email-input {
  flex: 1;
  min-width: 250px;
  padding: 14px 20px;
  border: 2px solid var(--color-card-border);
  border-radius: var(--radius-sm);
  background: rgba(4, 47, 46, 0.8);
  color: white;
  font-size: 16px;
  font-family: var(--font-body);
}

.t504-email-input::placeholder {
  color: #9ca3af;
}

.t504-success-message {
  display: none;
  background: rgba(6, 182, 212, 0.2);
  border: 2px solid var(--color-primary);
  padding: 24px;
  border-radius: var(--radius-sm);
  color: var(--color-accent);
  font-weight: 600;
  font-size: 18px;
}

/* Features Section */
.t504-features-section {
  padding: 60px 0;
}

.t504-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.t504-feature-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-sm);
  padding: 32px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.t504-feature-card::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity var(--transition);
  z-index: -1;
  border-radius: var(--radius-sm);
}

.t504-feature-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-primary);
}

.t504-feature-card:hover::before {
  opacity: 0.3;
}

.t504-feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
}

.t504-feature-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 22px;
  margin-bottom: 12px;
  color: var(--color-accent);
}

.t504-feature-desc {
  color: #d1d5db;
  font-size: 15px;
}

/* About Section */
.t504-about-section {
  padding: 60px 0;
}

.t504-about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.t504-about-text h2 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 38px;
  margin-bottom: 20px;
  color: var(--color-accent);
}

.t504-about-text p {
  margin-bottom: 16px;
  color: #d1d5db;
  font-size: 16px;
}

.t504-trust-badges {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.t504-badge {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  padding: 24px;
  border-radius: var(--radius-sm);
  text-align: center;
}

.t504-badge-icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.t504-badge-text {
  font-weight: 600;
  color: var(--color-accent);
}

/* FAQ Section */
.t504-faq-section {
  padding: 60px 0;
}

.t504-faq-container {
  max-width: 800px;
  margin: 40px auto 0;
}

.t504-faq-item {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  overflow: hidden;
}

.t504-faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 24px;
  text-align: left;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 18px;
  color: var(--color-accent);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all var(--transition);
}

.t504-faq-question:hover {
  background: rgba(6, 182, 212, 0.1);
}

.t504-faq-icon {
  font-size: 24px;
  transition: transform var(--transition);
}

.t504-faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition);
}

.t504-faq-answer-content {
  padding: 0 24px 20px;
  color: #d1d5db;
  font-size: 15px;
}

.t504-faq-item.active .t504-faq-icon {
  transform: rotate(180deg);
}

/* Disclaimer Section */
.t504-disclaimer-section {
  padding: 60px 0;
  text-align: center;
  background: rgba(220, 38, 38, 0.1);
  border-top: 2px solid #dc2626;
  border-bottom: 2px solid #dc2626;
  margin-top: 60px;
}

.t504-disclaimer-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100px;
  height: 100px;
  background: linear-gradient(135deg, #dc2626, #991b1b);
  border-radius: 50%;
  font-size: 48px;
  font-weight: 800;
  color: white;
  margin-bottom: 24px;
  border: 4px solid #dc2626;
}

.t504-disclaimer-text {
  font-size: 18px;
  font-weight: 600;
  color: #fca5a5;
  max-width: 800px;
  margin: 0 auto;
}

/* Footer */
.t504-footer {
  padding: 60px 0 30px;
  border-top: 1px solid var(--color-card-border);
  margin-top: 60px;
}

.t504-footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.t504-footer-brand h3 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 24px;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.t504-footer-brand p {
  color: #9ca3af;
  font-size: 14px;
  margin-bottom: 20px;
}

.t504-footer-links h4 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 18px;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.t504-footer-links ul {
  list-style: none;
}

.t504-footer-links a {
  color: #9ca3af;
  text-decoration: none;
  font-size: 14px;
  line-height: 2;
  transition: color var(--transition);
}

.t504-footer-links a:hover {
  color: var(--color-accent);
}

.t504-footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid var(--color-card-border);
  color: #9ca3af;
  font-size: 14px;
}

.t504-footer-age-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #dc2626, #991b1b);
  border-radius: 50%;
  font-size: 36px;
  font-weight: 800;
  color: white;
  margin: 20px auto;
  border: 4px solid #dc2626;
}

/* Modal */
.t504-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  z-index: 10000;
  align-items: center;
  justify-content: center;
}

.t504-modal.active {
  display: flex;
}

.t504-modal-content {
  background: linear-gradient(135deg, var(--color-bg-from), var(--color-bg-via));
  border: 2px solid #dc2626;
  border-radius: var(--radius-sm);
  padding: 48px;
  max-width: 500px;
  text-align: center;
  position: relative;
}

.t504-modal-icon {
  font-size: 80px;
  margin-bottom: 24px;
}

.t504-modal-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 32px;
  margin-bottom: 16px;
  color: #fca5a5;
}

.t504-modal-text {
  color: #d1d5db;
  font-size: 16px;
  margin-bottom: 32px;
}

.t504-modal-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
}

.t504-btn-confirm {
  background: linear-gradient(135deg, #16a34a, #15803d);
  color: white;
  padding: 12px 32px;
  border: 2px solid #16a34a;
  border-radius: var(--radius-sm);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
}

.t504-btn-confirm:hover {
  transform: scale(var(--hover-scale));
}

.t504-btn-decline {
  background: none;
  color: #9ca3af;
  padding: 12px 32px;
  border: 2px solid #4b5563;
  border-radius: var(--radius-sm);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
}

.t504-btn-decline:hover {
  border-color: #dc2626;
  color: #fca5a5;
}

/* Point System Page */
.t504-point-system-page {
  padding: 80px 0;
}

.t504-scoring-table {
  width: 100%;
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-sm);
  border-collapse: collapse;
  overflow: hidden;
  margin: 40px 0;
}

.t504-scoring-table th {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
  padding: 16px;
  text-align: left;
  font-family: var(--font-heading);
  font-weight: 800;
}

.t504-scoring-table td {
  padding: 16px;
  border-bottom: 1px solid var(--color-card-border);
  color: #d1d5db;
}

.t504-scoring-table tr:last-child td {
  border-bottom: none;
}

.t504-tips-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.t504-tip-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-sm);
  padding: 24px;
}

.t504-tip-card h3 {
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.t504-tip-card p {
  color: #d1d5db;
  font-size: 15px;
}

/* Privacy & Terms Pages */
.t504-legal-page {
  padding: 80px 0;
}

.t504-legal-content {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-sm);
  padding: 48px;
  max-width: 900px;
  margin: 0 auto;
}

.t504-legal-content h1 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 42px;
  color: var(--color-accent);
  margin-bottom: 24px;
}

.t504-legal-content h2 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 28px;
  color: var(--color-accent);
  margin-top: 32px;
  margin-bottom: 16px;
}

.t504-legal-content p {
  color: #d1d5db;
  margin-bottom: 16px;
  line-height: 1.8;
}

.t504-legal-content ul {
  margin-left: 24px;
  margin-bottom: 16px;
  color: #d1d5db;
}

.t504-legal-content li {
  margin-bottom: 8px;
}

/* Responsive */
@media (max-width: 1024px) {
  .t504-features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .t504-about-content {
    grid-template-columns: 1fr;
  }
  .t504-footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .t504-mobile-toggle {
    display: block;
  }
  .t504-nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(4, 47, 46, 0.98);
    flex-direction: column;
    padding: 20px;
    border-bottom: 1px solid var(--color-card-border);
  }
  .t504-nav-links.active {
    display: flex;
  }
  .t504-hero-title {
    font-size: 42px;
  }
  .t504-hero-subtitle {
    font-size: 18px;
  }
  .t504-features-grid {
    grid-template-columns: 1fr;
  }
  .t504-email-form {
    flex-direction: column;
  }
  .t504-tips-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .t504-hero-title {
    font-size: 32px;
  }
  .t504-section-title {
    font-size: 32px;
  }
  .t504-modal-content {
    padding: 32px 24px;
    margin: 20px;
  }
}