/* Built mobile-first from the start so 375px never becomes a rewrite. */

:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --border: #dfe3e8;
  --text: #1b1f24;
  --muted: #5c6773;
  --accent: #2b5cd9;
  --accent-contrast: #ffffff;
  --radius: 10px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 1.5rem 1rem 3rem;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main,
.site-header,
.site-footer {
  max-width: 760px;
  margin: 0 auto;
}

.site-header h1 {
  margin: 0 0 0.25rem;
  font-size: 1.6rem;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 0 0 1.5rem;
  color: var(--muted);
  max-width: 55ch;
}

.muted {
  color: var(--muted);
  margin: 0;
}

/* --- mode switcher --- */
.modes {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.mode {
  flex: 1 1 auto;
  min-width: 5.5rem;
  padding: 0.55rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--muted);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.mode:hover {
  border-color: #c3c9d1;
}

.mode[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast);
}

/* --- panels --- */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
}

.panel h2 {
  margin: 0 0 0.6rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.field {
  display: block;
}

.field-label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

textarea {
  width: 100%;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  color: inherit;
  background: var(--bg);
  resize: vertical;
}

textarea:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 0.75rem;
}

/* --- presets --- */
.presets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.75rem;
}

.presets:empty {
  display: none;
}

.preset-btn {
  font: inherit;
  font-size: 0.8rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
}

.preset-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* --- regex result + live verifier --- */
.pattern-display {
  display: block;
  font-family: var(--mono);
  font-size: 0.95rem;
  padding: 0.6rem 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow-x: auto;
  white-space: pre;
}

.explanation {
  margin: 0.6rem 0 0;
}

.match-results {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.match-results li {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.4rem 0.6rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  font-family: var(--mono);
  font-size: 0.85rem;
  word-break: break-word;
}

.match-results li.match {
  border-color: #b7e0c4;
  background: #f2fbf5;
}

.match-results .tag {
  flex: 0 0 auto;
  font-family: system-ui, sans-serif;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  background: var(--border);
  color: var(--muted);
}

.match-results li.match .tag {
  background: #2f8f4e;
  color: #fff;
}

.match-results mark {
  background: #ffe58a;
  color: inherit;
  border-radius: 3px;
  padding: 0 1px;
}

/* --- cron next-run list --- */
.next-runs {
  margin: 0.6rem 0 0;
  padding-left: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-family: var(--mono);
  font-size: 0.85rem;
}

/* --- SQL result table --- */
.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.sql-results {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.85rem;
  white-space: nowrap;
}

.sql-results th,
.sql-results td {
  padding: 0.5rem 0.7rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.sql-results thead th {
  background: var(--bg);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.sql-results tbody tr:last-child td {
  border-bottom: none;
}

.primary {
  padding: 0.55rem 1.25rem;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-contrast);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.primary[disabled] {
  opacity: 0.6;
  cursor: progress;
}

/* --- status badge (Phase 4 fills in on-device vs Groq) --- */
.badge {
  font-size: 0.78rem;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  background: var(--bg);
  white-space: nowrap;
}

.badge[data-state="error"] {
  border-color: #e6b0b0;
  background: #fdf2f2;
  color: #a12d2d;
}

.badge[data-state="loading"] {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.spinner {
  display: inline-block;
  width: 0.75em;
  height: 0.75em;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

@media (prefers-reduced-motion: reduce) {
  .spinner {
    animation-duration: 1.5s;
  }
}

.output pre {
  margin: 0;
  padding: 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 0.85rem;
  overflow-x: auto;
}

.site-footer {
  margin-top: 2rem;
  font-size: 0.85rem;
}

/* Must come after all other rules of equal specificity above (e.g.
   .match-results li.match), or the light-mode rule wins the cascade
   regardless of color scheme — @media alone doesn't add specificity. */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171c;
    --surface: #1c2027;
    --border: #2c323c;
    --text: #e6e9ee;
    --muted: #939ba7;
    --accent: #6690ff;
    --accent-contrast: #0b1220;
  }

  .match-results li.match {
    border-color: #2f6b45;
    background: #16241a;
  }

  .match-results li.match .tag {
    background: #3fae66;
    color: #0b1220;
  }

  .match-results mark {
    background: #7a5b12;
    color: #ffe8b0;
  }

  .badge[data-state="error"] {
    border-color: #7a3535;
    background: #2a1616;
    color: #f2a3a3;
  }
}