/* CSS Variables */
:root {
  --primary-color: #facc15;
  --primary-hover: #eab308;
  --secondary-color: #22d3ee;
  --accent-color: #facc15;
  --background: #09090b;
  --surface: #18181b;
  --surface-light: #27272a;
  --text-primary: #fafafa;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --error: #ef4444;
  --success: #22c55e;
  --border-radius: 8px;
  --transition: all 0.2s ease;
}

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Base */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--background);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 80px 20px 60px;
  background: linear-gradient(180deg, var(--surface) 0%, var(--background) 100%);
  border-bottom: 1px solid var(--surface-light);
  margin-bottom: 40px;
}

.badge {
  display: inline-block;
  background: transparent;
  color: var(--primary-color);
  padding: 8px 20px;
  border: 1px solid var(--primary-color);
  border-radius: 50px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 2px;
  margin-bottom: 24px;
  text-transform: uppercase;
}

.hero h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 4rem;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: -2px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tagline {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  font-weight: 400;
}

/* Countdown */
.countdown {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.countdown-item {
  background: var(--surface);
  border: 1px solid var(--surface-light);
  padding: 16px 20px;
  border-radius: var(--border-radius);
  min-width: 80px;
}

.countdown-value {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

.countdown-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Main Content */
.main-content {
  padding: 20px 0;
}

/* Register Section */
.register-section {
  background: var(--surface);
  padding: 40px;
  border-radius: var(--border-radius);
  text-align: center;
  margin-bottom: 30px;
}

.register-section h2 {
  font-size: 2rem;
  margin-bottom: 10px;
}

.register-section > p {
  color: var(--text-secondary);
  margin-bottom: 30px;
}

/* Form */
.register-form .form-group {
  display: flex;
  flex-direction: column;
  gap: 15px;
  max-width: 400px;
  margin: 0 auto;
}

.register-form input[type="email"] {
  width: 100%;
  padding: 16px 20px;
  font-size: 1rem;
  border: 2px solid var(--surface-light);
  border-radius: var(--border-radius);
  background: var(--background);
  color: var(--text-primary);
  transition: var(--transition);
}

.register-form input[type="email"]:focus {
  outline: none;
  border-color: var(--primary-color);
}

.register-form input[type="email"]::placeholder {
  color: var(--text-muted);
}

.register-form button {
  width: 100%;
  padding: 18px 32px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: #000;
  background: var(--primary-color);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  text-transform: uppercase;
}

.register-form button:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(250, 204, 21, 0.3);
}

.register-form button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.form-note {
  margin-top: 15px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Spinner */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Success State */
.success-state {
  text-align: center;
}

.success-icon {
  width: 80px;
  height: 80px;
  background: var(--success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: white;
  margin: 0 auto 20px;
}

.success-state h3 {
  font-size: 1.75rem;
  margin-bottom: 10px;
}

.guid-display {
  background: var(--background);
  padding: 20px;
  border-radius: var(--border-radius);
  font-family: monospace;
  font-size: 1.1rem;
  letter-spacing: 1px;
  margin: 20px 0;
  word-break: break-all;
  border: 2px solid var(--primary-color);
}

.success-note {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

/* Error State */
.error-state {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--error);
  padding: 20px;
  border-radius: var(--border-radius);
  text-align: center;
}

.error-state p {
  color: var(--error);
  margin-bottom: 15px;
}

/* Secondary Button */
.btn-secondary {
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--surface-light);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
}

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

/* Status Section */
.status-section {
  background: var(--surface);
  padding: 30px;
  border-radius: var(--border-radius);
  text-align: center;
  margin-bottom: 30px;
}

.status-section h3 {
  margin-bottom: 20px;
  color: var(--text-secondary);
}

.status-form {
  display: flex;
  gap: 10px;
  max-width: 500px;
  margin: 0 auto;
}

.status-form input {
  flex: 1;
  padding: 12px 16px;
  font-size: 0.9rem;
  border: 2px solid var(--surface-light);
  border-radius: var(--border-radius);
  background: var(--background);
  color: var(--text-primary);
}

.status-form input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.status-form button {
  padding: 12px 20px;
  font-weight: 500;
  color: white;
  background: var(--surface-light);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
}

.status-form button:hover {
  background: var(--primary-color);
}

.status-result {
  margin-top: 20px;
  padding: 20px;
  background: var(--background);
  border-radius: var(--border-radius);
  text-align: left;
}

.status-result.winner {
  border: 2px solid var(--success);
  background: rgba(34, 197, 94, 0.1);
}

.status-result.registered {
  border: 2px solid var(--primary-color);
}

/* Winner Section */
.winner-section {
  background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
  padding: 40px;
  border-radius: var(--border-radius);
  text-align: center;
  margin-bottom: 30px;
}

.winner-section h3 {
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.winner-display {
  background: rgba(255,255,255,0.1);
  padding: 20px;
  border-radius: var(--border-radius);
}

/* Features */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.feature {
  background: var(--surface);
  padding: 30px 20px;
  border-radius: var(--border-radius);
  text-align: center;
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
}

.feature h4 {
  margin-bottom: 8px;
}

.feature p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Sponsor Section */
.sponsor-section {
  background: var(--surface);
  padding: 20px;
  border-radius: var(--border-radius);
  text-align: center;
  margin-bottom: 30px;
}

.sponsor-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.sponsor-placeholder {
  background: var(--surface-light);
  padding: 40px;
  border-radius: 8px;
  color: var(--text-muted);
}

/* Footer */
.footer {
  padding: 40px 20px;
  text-align: center;
  border-top: 1px solid var(--surface-light);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

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

.legal-text {
  font-size: 0.8rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 15px;
  line-height: 1.8;
}

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

.copyright {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 600px) {
  .hero {
    padding: 40px 15px 30px;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .tagline {
    font-size: 1rem;
  }

  .countdown-item {
    padding: 10px 15px;
    min-width: 60px;
  }

  .countdown-value {
    font-size: 1.5rem;
  }

  .register-section {
    padding: 30px 20px;
  }

  .register-form .form-group {
    flex-direction: column;
  }

  .status-form {
    flex-direction: column;
  }

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

  .footer-links {
    flex-direction: column;
    gap: 15px;
  }
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.success-state, .error-state, .status-result {
  animation: fadeIn 0.3s ease;
}