:root {
  --bg-light: #ffffff;
  --bg-dark: #121212;
  --text-light: #111111;
  --text-dark: #f5f5f5;
  --accent: #000000;
  --border-light: #e0e0e0;
  --border-dark: #333333;
  --card-bg-light: #f9f9f9;
  --card-bg-dark: #1e1e1e;
  --success: #4caf50;
  --error: #f44336;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  line-height: 1.6;
  transition: background-color 0.3s, color 0.3s;
}

.theme-light {
  background-color: var(--bg-light);
  color: var(--text-light);
}

.theme-dark {
  background-color: var(--bg-dark);
  color: var(--text-dark);
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3rem;
}

.header h1 {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.controls {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.theme-btn {
  background: none;
  border: 1px solid var(--border-light);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s;
}

.theme-dark .theme-btn {
  border-color: var(--border-dark);
}

.theme-btn:hover {
  opacity: 0.7;
}

.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
  border: none;
  font-size: 1rem;
}

.btn.primary {
  background: var(--accent);
  color: white;
}

.theme-dark .btn.primary {
  background: var(--accent);
  color: white;
}

.btn.secondary {
  background: transparent;
  border: 1px solid var(--border-light);
}

.theme-dark .btn.secondary {
  border-color: var(--border-dark);
}

.btn:hover {
  opacity: 0.9;
}

.hero {
  text-align: center;
  margin-bottom: 3rem;
}

.hero-text {
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto;
  color: #666;
}

.theme-dark .hero-text {
  color: #aaa;
}

.showcase h2 {
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--card-bg-light);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  transition: transform 0.2s;
}

.theme-dark .card {
  background: var(--card-bg-dark);
}

.card:hover {
  transform: translateY(-4px);
}

.card h3 {
  margin-bottom: 0.5rem;
}

.card p {
  color: #666;
  margin-bottom: 1rem;
}

.theme-dark .card p {
  color: #aaa;
}

.card a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.loading, .thank-you {
  text-align: center;
  padding: 2rem;
}

.summary-content {
  background: var(--card-bg-light);
  padding: 1.5rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
  text-align: left;
  white-space: pre-wrap;
}

.theme-dark .summary-content {
  background: var(--card-bg-dark);
}

.queue-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

.queue-table th, .queue-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
}

.theme-dark .queue-table th,
.theme-dark .queue-table td {
  border-bottom: 1px solid var(--border-dark);
}

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

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

#login-section {
  max-width: 400px;
  margin: 3rem auto;
  text-align: center;
}

#login-section input {
  width: 100%;
  padding: 0.75rem;
  margin: 1rem 0;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  font-size: 1rem;
  background: var(--bg-light);
  color: var(--text-light);
}

.theme-dark #login-section input {
  background: var(--bg-dark);
  color: var(--text-dark);
  border-color: var(--border-dark);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  font-size: 1rem;
  background: var(--bg-light);
  color: var(--text-light);
  font-family: inherit;
}

.theme-dark .form-group input,
.theme-dark .form-group textarea,
.theme-dark .form-group select {
  background: var(--bg-dark);
  color: var(--text-dark);
  border-color: var(--border-dark);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.radio-group, .checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.radio-group label,
.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: normal;
  cursor: pointer;
}

.radio-group input[type="radio"],
.checkbox-group input[type="checkbox"] {
  width: auto;
}

.status {
  margin-top: 1.5rem;
  padding: 1rem;
  border-radius: 8px;
  text-align: center;
  display: none;
}

.status.success {
  background-color: #e6f4ea;
  color: #137333;
  display: block;
}

.status.error {
  background-color: #fce8e6;
  color: #c5221f;
  display: block;
}

footer {
  margin-top: 4rem;
  text-align: center;
  color: #888;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .container {
    padding: 1.5rem;
  }
  
  .header {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .cards-grid {
    grid-template-columns: 1fr;
  }
}