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

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --border: #2a2d3a;
  --text: #e4e4e7;
  --text-muted: #8b8fa3;
  --accent: #f97316;
  --accent-hover: #fb923c;
  --success: #22c55e;
  --error: #ef4444;
  --radius: 8px;
}

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

header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
}

.tagline {
  color: var(--text-muted);
  font-size: 0.875rem;
}

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 32px 24px;
}

.create-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-row {
  display: flex;
  gap: 12px;
}

.form-row input,
.form-row select {
  flex: 1;
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.15s;
}

.form-row input:focus,
.form-row select:focus,
textarea:focus {
  border-color: var(--accent);
}

textarea {
  width: 100%;
  min-height: 320px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: "JetBrains Mono", "Fira Code", "Cascadia Code", monospace;
  font-size: 0.875rem;
  line-height: 1.6;
  resize: vertical;
  outline: none;
  tab-size: 2;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}

.btn:hover {
  background: var(--accent-hover);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

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

.paste-view {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.paste-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.paste-title {
  font-size: 1.5rem;
  font-weight: 700;
}

.paste-meta {
  display: flex;
  gap: 16px;
  color: var(--text-muted);
  font-size: 0.8125rem;
}

.paste-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.summary-card {
  padding: 16px;
  background: linear-gradient(135deg, #1e2130, #1a1d27);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  border-left: 3px solid var(--accent);
}

.summary-card h3 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin-bottom: 8px;
}

.summary-card p {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.code-block {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: #161922;
  border-bottom: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.code-block pre {
  margin: 0;
  padding: 16px;
  overflow-x: auto;
  background: var(--surface);
}

.code-block code {
  font-family: "JetBrains Mono", "Fira Code", "Cascadia Code", monospace;
  font-size: 0.8125rem;
  line-height: 1.7;
}

.error-message {
  padding: 12px 16px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius);
  color: var(--error);
  font-size: 0.875rem;
}

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 64px;
  color: var(--text-muted);
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-right: 12px;
}

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

.actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.paste-list-section {
  margin-top: 48px;
}

.list-heading {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-muted);
}

.list-empty {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.timing-badge {
  display: inline-block;
  margin-left: 12px;
  padding: 2px 8px;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--success);
  vertical-align: middle;
}

.paste-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.paste-table th {
  text-align: left;
  padding: 8px 12px;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border);
}

.paste-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

.paste-table tbody tr {
  cursor: pointer;
  transition: background 0.1s;
}

.paste-table tbody tr:hover {
  background: var(--surface);
}

.paste-table a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
}

.paste-table a:hover {
  color: var(--accent);
}

.lang-badge {
  display: inline-block;
  padding: 2px 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

@media (max-width: 600px) {
  .form-row {
    flex-direction: column;
  }

  .paste-header {
    flex-direction: column;
  }

  header {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
}