:root {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  color-scheme: light dark;
  --primary: #6366f1;
  --primary-hover: #5855eb;
  --secondary: #f1f5f9;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

body {
  margin: 0;
  padding: 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  color: var(--text);
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 32px 24px;
  min-height: 100vh;
}

h1 {
  margin: 0 0 8px;
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #1e293b, #334155);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-align: center;
  text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

h2 {
  margin: 0 0 20px;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text);
}

h3 {
  margin: 16px 0 12px;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
}

.card {
  background: white;
  border-radius: 16px;
  padding: 24px;
  margin: 20px 0;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

label {
  display: block;
  margin: 12px 0 6px;
  font-weight: 500;
  color: var(--text);
}

input, textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 12px 16px;
  margin-top: 4px;
  border: 2px solid var(--border);
  border-radius: 12px;
  font-size: 16px;
  transition: all 0.2s ease;
  background: white;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

button {
  padding: 12px 24px;
  margin-top: 12px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--shadow);
}

button:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

button:active {
  transform: translateY(0);
}

button:disabled {
  background: var(--text-muted);
  cursor: not-allowed;
  transform: none;
}

.result {
  margin-top: 12px;
  padding: 12px 16px;
  border-radius: 8px;
  background: var(--secondary);
  font-size: 14px;
  line-height: 1.5;
}

.row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.assign-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 12px 0;
  align-items: end;
}

ul {
  padding-left: 20px;
  margin: 16px 0;
}

li {
  margin: 8px 0;
  padding: 8px 12px;
  background: var(--secondary);
  border-radius: 8px;
  list-style: none;
  margin-left: -20px;
  padding-left: 20px;
}

.hint {
  opacity: 0.7;
  font-size: 14px;
  margin: 8px 0;
}

code {
  background: var(--secondary);
  padding: 4px 8px;
  border-radius: 6px;
  font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
  font-size: 14px;
  color: var(--primary);
}

a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

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

/* Special styling for links outside cards (like back button) */
.container > a {
  color: white;
}

.link-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin: 8px 0;
  padding: 12px;
  background: var(--secondary);
  border-radius: 8px;
  flex-wrap: wrap;
}

.link-item strong {
  flex-shrink: 0;
  white-space: nowrap;
}

.link-item a {
  flex: 1;
  min-width: 0;
  word-break: break-all;
  hyphens: auto;
  color: #6366f1 !important;
  text-decoration: none !important;
  font-size: 14px;
  line-height: 1.4;
}

.link-item a:link,
.link-item a:visited,
.link-item a:hover,
.link-item a:active {
  color: #6366f1 !important;
  text-decoration: none !important;
}

.copy-btn {
  padding: 6px 8px !important;
  margin: 0 !important;
  font-size: 14px !important;
  min-width: auto !important;
  background: var(--text-muted) !important;
  border-radius: 6px !important;
}

.copy-btn:hover {
  background: var(--primary) !important;
  transform: none !important;
}

.admin-link-btn {
  display: inline-block;
  padding: 12px 24px;
  background: var(--primary);
  color: white;
  text-decoration: none;
  border-radius: 12px;
  font-weight: 600;
  margin-top: 12px;
  transition: all 0.2s ease;
  box-shadow: var(--shadow);
}

.admin-link-btn:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
  color: white;
}

/* Dark mode adjustments */
@media (prefers-color-scheme: dark) {
  :root {
    --secondary: #1e293b;
    --text: #f1f5f9;
    --text-muted: #94a3b8;
    --border: #334155;
  }
  
  body {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  }
  
  .card {
    background: rgba(30, 41, 59, 0.8);
    border-color: var(--border);
  }
  
  input, textarea {
    background: var(--secondary);
    border-color: var(--border);
    color: var(--text);
  }
  
  li {
    background: rgba(51, 65, 85, 0.5);
  }
}

/* Mobile responsive styles - updated */
@media (max-width: 768px) {
  .container {
    padding: 16px 12px;
  }
  
  .link-item {
    padding: 8px;
    gap: 6px;
  }
  
  .link-item a {
    font-size: 12px;
    line-height: 1.3;
  }
  
  .copy-btn {
    padding: 4px 6px !important;
    font-size: 12px !important;
  }
}