/* cronlens — design system */

@font-face {
  font-family: 'Inter';
  src: url('../fonts/inter-400.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('../fonts/inter-500.woff2') format('woff2');
  font-weight: 500; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('../fonts/inter-600.woff2') format('woff2');
  font-weight: 600; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('../fonts/inter-700.woff2') format('woff2');
  font-weight: 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('../fonts/jbmono-400.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('../fonts/jbmono-500.woff2') format('woff2');
  font-weight: 500; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('../fonts/jbmono-700.woff2') format('woff2');
  font-weight: 700; font-style: normal; font-display: swap;
}

:root {
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --c-second: #7fb4f5;
  --c-minute: #f5b453;
  --c-hour: #4dd0c4;
  --c-dom: #b69dfb;
  --c-month: #8fd694;
  --c-dow: #f58ea8;

  --bg: #0f1218;
  --bg-raise: #151923;
  --bg-panel: #171c27;
  --bg-inset: #10141c;
  --line: #262d3c;
  --line-strong: #39435a;
  --ink: #e9edf5;
  --ink-2: #aeb8ca;
  --ink-3: #7d8aa3;
  --accent: #f5b453;
  --danger: #ff8f8f;
  --danger-bg: rgba(255, 143, 143, 0.09);
  --ok: #8fd694;
  --shadow: 0 18px 50px -18px rgba(0, 0, 0, 0.55);
  --focus-ring: 0 0 0 2px var(--bg), 0 0 0 4px rgba(245, 180, 83, 0.75);
  --radius: 14px;
  --radius-sm: 9px;
}

html[data-theme='light'] {
  --c-second: #2f6db8;
  --c-minute: #a96a10;
  --c-hour: #0e8579;
  --c-dom: #6f4fd0;
  --c-month: #3d8a44;
  --c-dow: #c2496e;
  --bg: #f5f4f0;
  --bg-raise: #fdfcfa;
  --bg-panel: #ffffff;
  --bg-inset: #f0efe9;
  --line: #e0ddd2;
  --line-strong: #c9c5b6;
  --ink: #26292f;
  --ink-2: #565d6b;
  --ink-3: #818a9c;
  --accent: #a96a10;
  --danger: #c03434;
  --danger-bg: rgba(192, 52, 52, 0.07);
  --ok: #3d8a44;
  --shadow: 0 18px 40px -22px rgba(60, 55, 35, 0.35);
  --focus-ring: 0 0 0 2px var(--bg), 0 0 0 4px rgba(169, 106, 16, 0.65);
}

* { box-sizing: border-box; }

html { color-scheme: dark; }
html[data-theme='light'] { color-scheme: light; }

body {
  margin: 0;
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(77, 208, 196, 0.055), transparent 60%),
    radial-gradient(900px 480px at -10% 0%, rgba(245, 158, 168, 0.05), transparent 55%),
    var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15.5px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  clip: rect(0 0 0 0); clip-path: inset(50%);
  overflow: hidden; white-space: nowrap;
}

.skip-link {
  position: absolute; left: 12px; top: -60px;
  z-index: 100;
  background: var(--accent); color: #14100a;
  padding: 9px 16px; border-radius: 8px;
  font-weight: 600; text-decoration: none;
  transition: top 0.18s ease;
}
.skip-link:focus { top: 12px; }

:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: 6px; }

code {
  font-family: var(--mono);
  font-size: 0.92em;
  background: var(--bg-inset);
  border: 1px solid var(--line);
  padding: 0.08em 0.4em;
  border-radius: 6px;
}

.ic { width: 17px; height: 17px; fill: currentColor; flex: none; }

/* ---------- header ---------- */

.top {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  max-width: 1280px; margin: 0 auto;
  padding: 22px clamp(16px, 4vw, 40px) 6px;
}

.brand { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.logo { width: 30px; height: 30px; align-self: center; }
.wordmark {
  font-family: var(--mono);
  font-size: 22px; font-weight: 700; letter-spacing: -0.02em;
}
.wordmark em { font-style: normal; color: var(--accent); }
.tagline { color: var(--ink-3); font-size: 13px; letter-spacing: 0.04em; }

.top-actions { display: flex; gap: 8px; }

.ghost-btn {
  display: inline-flex; align-items: center; gap: 7px;
  background: transparent; color: var(--ink-2);
  border: 1px solid var(--line);
  padding: 7px 13px; border-radius: 999px;
  font: inherit; font-size: 13.5px; font-weight: 500;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease, transform 0.05s ease;
}
.ghost-btn:hover { color: var(--ink); border-color: var(--line-strong); background: var(--bg-raise); }
.ghost-btn:active { transform: translateY(1px); }

/* ---------- layout ---------- */

main {
  max-width: 1280px; margin: 0 auto;
  padding: 14px clamp(16px, 4vw, 40px) 30px;
  display: flex; flex-direction: column; gap: 26px;
}

.section-title {
  font-size: 13px; font-weight: 600; letter-spacing: 0.09em;
  text-transform: uppercase; color: var(--ink-3);
  margin: 0 0 10px;
}
.section-head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin-bottom: 12px; flex-wrap: wrap;
}
.section-head .section-title { margin: 0; }

/* ---------- expression surface ---------- */

.surface {
  background: linear-gradient(180deg, var(--bg-raise), var(--bg-panel));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(16px, 3vw, 26px);
  display: flex; flex-direction: column; gap: 14px;
}

.expr-box {
  display: flex; align-items: center; gap: 10px;
  background: var(--bg-inset);
  border: 1.5px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 4px 6px 4px 14px;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.expr-box:focus-within { border-color: var(--accent); }
.expr-box.invalid { border-color: var(--danger); }
.expr-box.invalid:focus-within { border-color: var(--danger); }

.expr-glyph { width: 20px; height: 20px; fill: var(--ink-3); flex: none; }

.expr-input {
  flex: 1; min-width: 0;
  background: transparent; border: 0; outline: none;
  font-family: var(--mono);
  font-size: clamp(17px, 3.4vw, 25px);
  font-weight: 500;
  color: var(--ink);
  padding: 10px 2px;
  letter-spacing: 0.01em;
}
.expr-input::placeholder { color: var(--ink-3); opacity: 0.7; }

.copy-btn {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--bg-panel); color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 8px 14px;
  font: inherit; font-size: 13.5px; font-weight: 600;
  cursor: pointer; white-space: nowrap;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.copy-btn:hover { border-color: var(--accent); color: var(--accent); }
.copy-btn.copied { background: var(--ok); border-color: var(--ok); color: #101608; }
.copy-btn.copied:hover { color: #101608; }

.expr-hint { margin: 6px 2px 0; color: var(--ink-3); font-size: 13px; }

/* field map */
.field-map {
  display: flex; flex-wrap: wrap; gap: 8px; align-items: stretch;
}
.field-seg {
  display: inline-flex; flex-direction: column; gap: 2px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--seg-color, var(--line-strong));
  background: var(--bg-inset);
  border-radius: 8px;
  padding: 7px 12px 6px;
  cursor: pointer;
  font: inherit; text-align: left;
  min-width: 64px;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.06s ease;
}
.field-seg:hover { background: color-mix(in srgb, var(--seg-color) 12%, var(--bg-inset)); border-color: var(--seg-color); }
.field-seg:active { transform: translateY(1px); }
.field-seg.lit { background: color-mix(in srgb, var(--seg-color) 16%, var(--bg-inset)); border-color: var(--seg-color); }
.field-seg .seg-label {
  font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-3); font-weight: 600;
}
.field-seg .seg-value {
  font-family: var(--mono); font-size: 15px; font-weight: 500;
  color: var(--ink); overflow-wrap: anywhere;
}
.field-seg.error { border-color: var(--danger); border-left-color: var(--danger); }
.field-seg.error .seg-value { color: var(--danger); }

/* diagnostics */
.diagnostics { display: flex; flex-direction: column; gap: 8px; }
.diag-item {
  display: flex; gap: 10px; align-items: flex-start;
  background: var(--danger-bg);
  border: 1px solid color-mix(in srgb, var(--danger) 40%, transparent);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 14px;
}
.diag-item .diag-field {
  font-family: var(--mono); font-size: 12px; font-weight: 700;
  color: var(--danger); text-transform: uppercase; letter-spacing: 0.06em;
  white-space: nowrap; padding-top: 1px;
}
.diag-item .diag-text { color: var(--ink); }
.diag-fix {
  margin-left: 8px; display: inline-flex; align-items: center; gap: 5px;
  background: transparent; border: 1px solid var(--danger);
  color: var(--danger); border-radius: 6px;
  font: inherit; font-size: 12.5px; font-weight: 600;
  padding: 2px 9px; cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
.diag-fix:hover { background: var(--danger); color: #1c0b0b; }

/* explanation */
.explanation-card { display: flex; flex-direction: column; gap: 8px; }
.explanation {
  margin: 0;
  font-size: clamp(18px, 2.6vw, 23px);
  font-weight: 500; line-height: 1.45; letter-spacing: -0.005em;
  color: var(--ink);
}
.explanation-dim { color: var(--ink-3); font-weight: 400; }
.explanation .shorthand-badge {
  display: inline-block; margin-right: 9px; vertical-align: 2px;
  font-family: var(--mono); font-size: 0.62em; font-weight: 700;
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 55%, transparent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border-radius: 999px; padding: 2px 10px; letter-spacing: 0.05em;
}
.notes { display: flex; flex-wrap: wrap; gap: 8px; }
.note-chip {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12.5px; color: var(--ink-2);
  border: 1px solid var(--line);
  background: var(--bg-inset);
  border-radius: 999px; padding: 4px 12px;
}
.note-chip::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.note-chip.note-warn::before { background: var(--danger); }
.note-chip.note-or::before { background: var(--c-dom); }
.note-chip.note-leap::before { background: var(--c-month); }

/* ---------- presets ---------- */

.preset-row {
  display: grid; grid-auto-flow: column;
  grid-auto-columns: minmax(215px, 1fr);
  gap: 10px;
  overflow-x: auto;
  padding: 4px 2px 10px;
  scrollbar-width: thin;
  scroll-snap-type: x proximity;
}
.preset {
  scroll-snap-align: start;
  display: flex; flex-direction: column; gap: 3px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font: inherit; text-align: left; color: var(--ink);
  cursor: pointer;
  transition: border-color 0.15s ease, transform 0.08s ease, background 0.15s ease;
}
.preset:hover { border-color: var(--line-strong); transform: translateY(-1px); }
.preset:active { transform: translateY(0); }
.preset.active { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, var(--bg-panel)); }
.preset .preset-name { font-weight: 600; font-size: 13.5px; }
.preset .preset-expr {
  font-family: var(--mono); font-size: 12.5px; color: var(--ink-2);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.preset .preset-blurb { font-size: 12px; color: var(--ink-3); }

/* ---------- builder + upcoming columns ---------- */

.cols {
  display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(320px, 1fr);
  gap: 22px; align-items: start;
}
@media (max-width: 980px) { .cols { grid-template-columns: 1fr; } }

.builder, .upcoming {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(14px, 2.6vw, 22px);
}

.seconds-toggle {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13px; color: var(--ink-2); cursor: pointer;
  user-select: none;
}
.seconds-toggle input { accent-color: var(--c-second); width: 15px; height: 15px; cursor: pointer; }

/* panels */
.panels { display: flex; flex-direction: column; gap: 12px; }

.panel {
  border: 1px solid var(--line);
  border-left: 3px solid var(--panel-color, var(--line-strong));
  border-radius: var(--radius-sm);
  background: var(--bg-inset);
  padding: 12px 14px;
  display: flex; flex-direction: column; gap: 10px;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.panel.flash { border-color: var(--panel-color); box-shadow: 0 0 0 3px color-mix(in srgb, var(--panel-color) 25%, transparent); }
.panel-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.panel-name { font-weight: 600; font-size: 14px; }
.panel-sub { font-family: var(--mono); font-size: 12px; color: var(--ink-3); overflow-wrap: anywhere; }

.mode-row { display: flex; flex-wrap: wrap; gap: 5px; }
.mode-btn {
  font: inherit; font-size: 12.5px; font-weight: 500;
  color: var(--ink-2);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 12px;
  cursor: pointer;
  transition: color 0.13s ease, border-color 0.13s ease, background 0.13s ease;
}
.mode-btn:hover { color: var(--ink); border-color: var(--line-strong); }
.mode-btn[aria-pressed='true'] {
  color: var(--bg); background: var(--panel-color);
  border-color: var(--panel-color); font-weight: 600;
}
html[data-theme='light'] .mode-btn[aria-pressed='true'] { color: #fff; }

.panel-body { display: flex; flex-direction: column; gap: 10px; }

/* chips */
.chip-grid { display: flex; flex-wrap: wrap; gap: 5px; }
.chip {
  font: inherit; font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-2);
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: 7px;
  min-width: 34px; padding: 4px 7px;
  cursor: pointer; text-align: center;
  transition: color 0.12s ease, border-color 0.12s ease, background 0.12s ease, transform 0.05s ease;
}
.chip:hover { color: var(--ink); border-color: var(--line-strong); }
.chip:active { transform: scale(0.94); }
.chip[aria-pressed='true'] {
  color: var(--bg); background: var(--panel-color);
  border-color: var(--panel-color); font-weight: 700;
}
html[data-theme='light'] .chip[aria-pressed='true'] { color: #fff; }
.chip.chip-wide { min-width: 54px; font-family: var(--sans); font-size: 12.5px; }

/* range + step inputs */
.inline-fields { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.num-field { display: flex; flex-direction: column; gap: 3px; }
.num-field label { font-size: 11.5px; color: var(--ink-3); font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; }
.num-field input, .custom-field input {
  font-family: var(--mono); font-size: 14px;
  color: var(--ink);
  background: var(--bg-panel);
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  padding: 6px 8px;
  width: 88px;
  outline: none;
  transition: border-color 0.15s ease;
}
.num-field input:focus, .custom-field input:focus { border-color: var(--panel-color); }
.custom-field { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.custom-field label { font-size: 11.5px; color: var(--ink-3); font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; }
.custom-field input { width: 100%; }
.custom-note { font-size: 12px; color: var(--ink-3); margin: 0; }

.equiv-badge {
  align-self: flex-start;
  font-family: var(--mono); font-size: 11.5px;
  color: var(--ink-2);
  border: 1px dashed var(--line-strong);
  border-radius: 6px; padding: 2px 8px;
}
.equiv-badge code { background: none; border: 0; padding: 0; color: var(--accent); }

/* ---------- upcoming ---------- */

.tz-wrap { display: inline-flex; align-items: center; gap: 7px; }
.tz-ic { color: var(--ink-3); }
#tz-select {
  font: inherit; font-size: 13px; color: var(--ink);
  background: var(--bg-inset);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 6px 8px;
  max-width: 210px;
  cursor: pointer;
}

.next-hero {
  display: flex; flex-direction: column; gap: 2px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--c-hour) 10%, var(--bg-inset)), var(--bg-inset) 55%);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  margin-bottom: 12px;
}
.next-kicker { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); font-weight: 700; }
.next-when { font-family: var(--mono); font-size: clamp(17px, 2.4vw, 21px); font-weight: 700; letter-spacing: -0.01em; }
.countdown { font-size: 13.5px; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.countdown .count-pulse { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--ok); margin-right: 7px; animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }
@media (prefers-reduced-motion: reduce) { .countdown .count-pulse { animation: none; } }

.runs-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.run-row {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) auto;
  gap: 4px 10px; align-items: center;
  padding: 8px 6px;
  border-bottom: 1px solid var(--line);
  transition: background 0.13s ease;
}
.run-row:last-child { border-bottom: 0; }
.run-row:hover { background: var(--bg-inset); }
.run-row.run-first { background: color-mix(in srgb, var(--c-hour) 7%, transparent); }
.run-idx {
  font-family: var(--mono); font-size: 11px; color: var(--ink-3);
  text-align: center; border-right: 1px solid var(--line); padding-right: 8px; grid-row: span 2;
}
.run-when { font-family: var(--mono); font-size: 14px; font-weight: 500; }
.run-meta { display: flex; gap: 8px; align-items: center; justify-content: flex-end; }
.run-rel { font-size: 12px; color: var(--ink-3); font-variant-numeric: tabular-nums; white-space: nowrap; }
.run-delta { font-size: 11.5px; color: var(--ink-3); font-family: var(--mono); grid-column: 2 / 4; }
.run-flag {
  font-size: 10px; font-weight: 700; letter-spacing: 0.06em;
  color: var(--c-dow); border: 1px solid color-mix(in srgb, var(--c-dow) 55%, transparent);
  border-radius: 5px; padding: 1px 6px;
  cursor: help;
}
.run-copy {
  background: none; border: 0; color: var(--ink-3);
  padding: 4px; border-radius: 6px; cursor: pointer; line-height: 0;
  transition: color 0.13s ease, background 0.13s ease;
  position: relative;
}
.run-copy::after { content: ''; position: absolute; inset: -6px; }
.run-copy:hover { color: var(--accent); background: var(--bg-inset); }
.run-copy.copied { color: var(--ok); }

.runs-empty { color: var(--ink-3); font-size: 13.5px; padding: 8px 2px; margin: 0; }

/* timeline */
.timeline-card { margin-top: 14px; border-top: 1px solid var(--line); padding-top: 13px; }
.timeline-head { display: flex; align-items: baseline; gap: 9px; margin-bottom: 8px; }
.mini-title { font-size: 13.5px; font-weight: 600; margin: 0; }
.viz-sub { font-size: 12px; color: var(--ink-3); }
.timeline { position: relative; padding: 26px 6px 20px; min-height: 96px; }
.tl-track {
  position: absolute; left: 6px; right: 6px; top: 44px; height: 3px;
  background: var(--line); border-radius: 2px;
}
.tl-tick { position: absolute; top: 52px; font-family: var(--mono); font-size: 10px; color: var(--ink-3); transform: translateX(-50%); white-space: nowrap; }
.tl-dot {
  position: absolute; top: 39px; width: 13px; height: 13px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: var(--c-hour);
  border: 2.5px solid var(--bg-panel);
  box-shadow: 0 0 0 1.5px var(--c-hour);
  cursor: pointer; padding: 0;
  transition: transform 0.12s ease;
}
.tl-dot::after { content: ''; position: absolute; inset: -9px; }
.tl-dot:hover, .tl-dot:focus-visible { transform: translateX(-50%) scale(1.45); z-index: 3; }
.tl-dot.tl-next { background: var(--accent); box-shadow: 0 0 0 1.5px var(--accent), 0 0 0 6px color-mix(in srgb, var(--accent) 22%, transparent); }
.tl-now {
  position: absolute; top: 30px; width: 2px; height: 30px;
  background: var(--ink-3); transform: translateX(-50%);
}
.tl-now-label { position: absolute; top: 12px; transform: translateX(-50%); font-family: var(--mono); font-size: 10px; color: var(--ink-3); }
.tl-empty { color: var(--ink-3); font-size: 13px; text-align: center; padding: 24px 0; }

/* ---------- viz ---------- */

.viz {
  display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 22px;
}
@media (max-width: 980px) { .viz { grid-template-columns: 1fr; } }

.viz-card {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(14px, 2.6vw, 20px);
  display: flex; flex-direction: column; gap: 12px;
  min-width: 0;
}
.viz-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.cal-head { justify-content: space-between; }

.heat-wrap { overflow-x: auto; padding-bottom: 6px; }
.heat { display: block; min-width: 0; }
/* the grid itself keeps a sane minimum width; the wrap above scrolls it */
.heat-grid-inner { display: inline-block; min-width: 560px; }
.heat-row { display: grid; grid-template-columns: 30px repeat(60, 1fr); gap: 2px; align-items: center; }
.heat-row-label { font-family: var(--mono); font-size: 9.5px; color: var(--ink-3); text-align: right; padding-right: 6px; }
.heat-row-label.heat-row-dim { opacity: 0.35; }
.heat-top-labels { display: grid; grid-template-columns: 30px repeat(60, 1fr); gap: 2px; margin-bottom: 3px; }
.heat-top-labels span { font-family: var(--mono); font-size: 9px; color: var(--ink-3); text-align: left; }
.heat-cell {
  width: 100%; aspect-ratio: 1; border-radius: 2px;
  background: var(--bg-inset);
  outline: 1px solid rgba(128, 128, 128, 0.06); outline-offset: -1px;
  transition: background 0.12s ease, transform 0.08s ease;
}
.heat-cell.on {
  background: color-mix(in srgb, var(--c-hour) 62%, var(--bg-inset));
}
.heat-cell.on-sec { background: color-mix(in srgb, var(--c-hour) 88%, var(--bg-inset)); }
.heat-cell.hovered { transform: scale(1.7); z-index: 2; background: var(--accent); }
.heat-cursor { outline: 2px solid var(--ink); outline-offset: 1px; z-index: 2; }
.heat-summary { font-size: 12.5px; color: var(--ink-3); margin: 0; }

/* calendar */
.cal-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 4px; }
.cal-dow-label {
  font-size: 10.5px; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase;
  color: var(--ink-3); text-align: center; padding: 3px 0;
}
.cal-day {
  position: relative;
  aspect-ratio: 1.15; min-height: 42px;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1px;
  font: inherit;
  background: var(--bg-inset);
  border: 1px solid var(--line);
  border-radius: 9px;
  color: var(--ink-2); cursor: pointer; padding: 2px;
  transition: border-color 0.13s ease, background 0.13s ease, transform 0.06s ease;
}
.cal-day:hover { border-color: var(--line-strong); transform: translateY(-1px); }
.cal-day .cal-num { font-size: 13px; font-weight: 600; font-variant-numeric: tabular-nums; }
.cal-day.blank { visibility: hidden; }
.cal-day.out { color: var(--ink-3); opacity: 0.55; }
.cal-day.today { border-color: var(--accent); }
.cal-day.today .cal-num { color: var(--accent); }
.cal-day.match { background: color-mix(in srgb, var(--c-dom) 14%, var(--bg-inset)); border-color: color-mix(in srgb, var(--c-dom) 55%, var(--line)); color: var(--ink); }
.cal-day.match.by-dow-only { background: color-mix(in srgb, var(--c-dow) 14%, var(--bg-inset)); border-color: color-mix(in srgb, var(--c-dow) 55%, var(--line)); }
.cal-day.match.both-dom-dow { background: linear-gradient(135deg, color-mix(in srgb, var(--c-dom) 16%, var(--bg-inset)), color-mix(in srgb, var(--c-dow) 16%, var(--bg-inset))); border-color: var(--line-strong); }
.cal-day.next-run { box-shadow: 0 0 0 2px var(--c-hour); }
.cal-day .cal-count {
  font-family: var(--mono); font-size: 9.5px; color: var(--ink-3);
}
.cal-day.match .cal-count { color: var(--ink-2); }
.cal-legend { display: flex; flex-wrap: wrap; gap: 14px; font-size: 12px; color: var(--ink-3); }
.cal-legend .lg { display: inline-flex; align-items: center; gap: 6px; }
.cal-legend .sw { width: 11px; height: 11px; border-radius: 4px; border: 1px solid var(--line-strong); }
.cal-legend .sw.sw-dom { background: color-mix(in srgb, var(--c-dom) 35%, var(--bg-inset)); border-color: var(--c-dom); }
.cal-legend .sw.sw-dow { background: color-mix(in srgb, var(--c-dow) 35%, var(--bg-inset)); border-color: var(--c-dow); }
.cal-legend .sw.sw-today { background: var(--bg-inset); border-color: var(--accent); }
.cal-legend .sw.sw-next { background: var(--bg-inset); border-color: var(--c-hour); box-shadow: 0 0 0 2px var(--c-hour); }

.cal-nav { display: flex; gap: 6px; }
.cal-btn {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--bg-inset); color: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  width: 34px; height: 32px;
  font: inherit; font-size: 13px;
  cursor: pointer;
  transition: color 0.13s ease, border-color 0.13s ease;
}
.cal-btn-wide { width: auto; padding: 0 12px; font-weight: 600; }
.cal-btn:hover { color: var(--ink); border-color: var(--line-strong); }
.cal-btn .ic { width: 15px; height: 15px; }

/* ---------- footer ---------- */

.foot {
  max-width: 1280px; margin: 0 auto;
  padding: 8px clamp(16px, 4vw, 40px) 42px;
  color: var(--ink-3); font-size: 13px;
  display: flex; flex-direction: column; gap: 5px;
}
.foot-tz { font-family: var(--mono); color: var(--ink-2); }
.foot-fine { font-size: 12px; max-width: 72ch; }
.linklike {
  background: none; border: 0; padding: 0;
  color: var(--accent); font: inherit; font-size: inherit;
  text-decoration: underline; text-underline-offset: 2px;
  cursor: pointer;
}

/* ---------- help dialog ---------- */

.help-dialog {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--bg-panel);
  color: var(--ink);
  max-width: 640px; width: calc(100vw - 40px);
  max-height: 84vh;
  padding: 0;
  box-shadow: var(--shadow);
}
.help-dialog::backdrop { background: rgba(5, 8, 14, 0.6); backdrop-filter: blur(3px); }
.help-body { padding: 22px 26px 26px; overflow-y: auto; max-height: 84vh; }
.help-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.help-head h2 { margin: 0; font-size: 20px; }
.help-table { border-collapse: collapse; width: 100%; margin: 12px 0; font-size: 13.5px; }
.help-table th, .help-table td { text-align: left; padding: 7px 10px 7px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.help-table th { color: var(--ink-3); font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; }
.help-table td:first-child { white-space: nowrap; font-weight: 600; }
.help-list { margin: 8px 0 0; padding-left: 20px; display: flex; flex-direction: column; gap: 8px; }
.help-list li { line-height: 1.5; }

.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 7px; }
.dot-minute { background: var(--c-minute); }
.dot-hour { background: var(--c-hour); }
.dot-dom { background: var(--c-dom); }
.dot-month { background: var(--c-month); }
.dot-dow { background: var(--c-dow); }

/* ---------- tooltip ---------- */

.tooltip {
  position: fixed; z-index: 90;
  background: var(--bg-panel);
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  box-shadow: var(--shadow);
  padding: 8px 12px;
  font-size: 12.5px; line-height: 1.45;
  max-width: 260px;
  pointer-events: none;
  opacity: 0; transform: translateY(4px);
  transition: opacity 0.12s ease, transform 0.12s ease;
}
.tooltip.show { opacity: 1; transform: translateY(0); }
.tooltip .tt-title { font-weight: 600; font-family: var(--mono); font-size: 12px; }
.tooltip .tt-sub { color: var(--ink-2); }

/* ---------- responsive ---------- */

@media (max-width: 720px) {
  .cols, .viz { grid-template-columns: 1fr; }
  .expr-box { flex-wrap: nowrap; }
  .copy-btn .copy-label { display: none; }
  .copy-btn { padding: 8px 10px; }
  .run-row { grid-template-columns: 22px minmax(0, 1fr) auto; }
  .run-idx { grid-row: span 2; }
  .heat-grid-inner { min-width: 500px; }
  .cal-day { aspect-ratio: auto; height: 42px; min-height: 0; }
  .next-hero { padding: 11px 13px; }
}

@media (max-width: 460px) {
  .tagline { display: none; }
  .field-map { gap: 6px; }
  .field-seg { min-width: 54px; padding: 6px 9px 5px; }
  .run-delta { display: none; }
  .preset-row { grid-auto-columns: minmax(185px, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}