/* Macro cycle. Mobile-first, dark default, light via prefers-color-scheme. */

:root {
  color-scheme: dark light;
  --bg: #0f1113;
  --card: #16191d;
  --card-raise: #1b1f24;
  --border: #262b31;
  --text: #e7e4de;
  --muted: #98a0a8;
  --accent: #3fb950;
  --formula-bg: #101418;
  --g-verified: #3fb950;
  --g-mechanism: #58a6ff;
  --g-preference: #bc8cff;
  --g-extrapolation: #d29922;
  --g-practice: #8b949e;
  --sev-block: #f85149;
  --sev-warn: #d29922;
  --sev-info: #58a6ff;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f4f0;
    --card: #ffffff;
    --card-raise: #f8f7f4;
    --border: #ddddd4;
    --text: #1c1f23;
    --muted: #5c646c;
    --accent: #1a7f37;
    --formula-bg: #f0efe9;
    --g-verified: #1a7f37;
    --g-mechanism: #0969da;
    --g-preference: #8250df;
    --g-extrapolation: #9a6700;
    --g-practice: #57606a;
    --sev-block: #cf222e;
    --sev-warn: #9a6700;
    --sev-info: #0969da;
  }
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
  padding: 16px 16px 40px;
  -webkit-text-size-adjust: 100%;
}

html:has(dialog[open]) { overflow: hidden; }

.masthead, main, footer { max-width: 640px; margin-inline: auto; }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--card);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 8px;
  z-index: 10;
}
.skip:focus-visible { left: 16px; }

.masthead { padding: 20px 4px 16px; }
.masthead h1 {
  margin: 0;
  font-size: 1.7rem;
  letter-spacing: -0.02em;
  font-weight: 750;
}
.tagline { margin: 2px 0 0; color: var(--muted); font-size: 0.95rem; }

h2 { font-size: 1.05rem; margin: 0 0 14px; letter-spacing: -0.01em; }
h3 { font-size: 1.05rem; margin: 0; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 16px;
  margin-bottom: 14px;
}

/* ---------------------------------------------------------------- inputs */

.field { margin-bottom: 14px; }
.field:last-child { margin-bottom: 0; }

label, .label { display: inline-block; font-size: 0.92rem; font-weight: 600; }

.label-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 4px;
}
.label-tools { display: inline-flex; gap: 8px; }

output { font-variant-numeric: tabular-nums; color: var(--muted); font-size: 0.92rem; }

input[type="number"] {
  width: 100%;
  margin-top: 6px;
  font-size: 1.05rem;
  font-variant-numeric: tabular-nums;
  padding: 10px 12px;
  background: var(--card-raise);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
}
input[type="number"]:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

.row { display: flex; gap: 10px; align-items: center; }
.row input[type="number"] { flex: 1; margin-top: 6px; }

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
  margin: 8px 0 0;
}

.hint { color: var(--muted); font-size: 0.85rem; margin: 6px 0 0; }
.label-row .hint { margin: 0; }

.seg {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 4px;
  margin: 0 0 14px;
  display: flex;
  gap: 4px;
  background: var(--card-raise);
}
.seg legend {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  padding: 0 4px;
}
.seg label { flex: 1; display: block; font-weight: 500; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span {
  display: block;
  text-align: center;
  padding: 8px 6px;
  border-radius: 9px;
  font-size: 0.92rem;
  color: var(--muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.seg input:checked + span {
  background: var(--card);
  color: var(--text);
  font-weight: 650;
  box-shadow: 0 1px 4px rgb(0 0 0 / 0.35);
}
.seg input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 1px; }
.seg-compact { flex: 0 0 auto; margin: 6px 0 0; }
.seg-compact span { padding: 8px 14px; }

.stepper {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card-raise);
  padding: 4px;
  margin-top: 6px;
}
.stepper button {
  width: 42px;
  height: 38px;
  font-size: 1.2rem;
  border: none;
  border-radius: 9px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
}
.stepper button:hover { background: var(--card); }
.stepper button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.stepper output {
  min-width: 36px;
  text-align: center;
  font-size: 1.1rem;
  font-weight: 650;
  color: var(--text);
}
.row .stepper { margin-top: 6px; }
.row .hint { margin: 6px 0 0; }

.subcontrols { border-top: 1px dashed var(--border); padding-top: 14px; margin-top: 2px; }

.advanced { border-top: 1px dashed var(--border); margin-top: 2px; padding-top: 10px; }
.advanced summary {
  cursor: pointer;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--muted);
  padding: 4px 0;
}
.advanced summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.advanced[open] summary { margin-bottom: 12px; }

.info {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--card-raise);
  color: var(--muted);
  font-family: Georgia, serif;
  font-style: italic;
  font-size: 0.8rem;
  line-height: 1;
  cursor: pointer;
}
.info:hover { color: var(--text); border-color: var(--muted); }
.info:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 10px;
  padding: 8px 14px;
  font-size: 0.88rem;
  cursor: pointer;
}
.ghost:hover { color: var(--text); border-color: var(--muted); }
.ghost:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

/* ---------------------------------------------------------------- output */

.empty { color: var(--muted); font-size: 0.95rem; padding: 8px 0 4px; }

table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
thead th {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 600;
  text-align: right;
  padding: 4px 6px 8px;
  border-bottom: 1px solid var(--border);
}
thead th:first-child { text-align: left; }
tbody th {
  text-align: left;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 10px 6px;
  border-bottom: 1px solid var(--border);
}
tbody td { border-bottom: 1px solid var(--border); padding: 0; text-align: right; }
.count { color: var(--muted); font-weight: 500; font-size: 0.85rem; }

td > button {
  width: 100%;
  min-height: 44px;
  padding: 10px 6px;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
  text-align: right;
  cursor: pointer;
  text-decoration: underline dotted;
  text-decoration-color: color-mix(in srgb, var(--accent) 55%, transparent);
  text-underline-offset: 4px;
  border-radius: 6px;
}
td > button:hover { background: var(--card-raise); }
td > button:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }

tr.weekly th, tr.weekly td { border-top: 2px solid var(--border); border-bottom: none; }
tr.weekly th { color: var(--muted); }

.change-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  margin: 12px 0 0;
}
.change-row .change-label { font-size: 0.85rem; color: var(--muted); font-weight: 600; }
.change-row button {
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 0.95rem;
  font-variant-numeric: tabular-nums;
  padding: 4px 0;
  cursor: pointer;
  text-align: left;
  text-decoration: underline dotted;
  text-decoration-color: color-mix(in srgb, var(--accent) 55%, transparent);
  text-underline-offset: 4px;
}
.change-row button:hover { color: var(--accent); }
.change-row button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.placement {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.88rem;
  margin: 10px 0 0;
}

.note {
  margin: 16px 0 0;
  padding: 12px 14px;
  border-left: 3px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 7%, transparent);
  border-radius: 0 10px 10px 0;
  font-size: 0.93rem;
  color: color-mix(in srgb, var(--text) 88%, var(--muted));
}

/* warnings */

.warnbox {
  border-left: 3px solid color-mix(in srgb, var(--sev-info) 55%, transparent);
  background: transparent;
  color: color-mix(in srgb, var(--text) 72%, var(--muted));
  border-radius: 0 10px 10px 0;
  padding: 8px 12px;
  margin: 0 0 10px;
  font-size: 0.88rem;
}
.warnbox[data-severity="warn"] {
  border-left-color: var(--sev-warn);
  background: color-mix(in srgb, var(--sev-warn) 10%, transparent);
  color: var(--text);
  padding: 10px 12px;
  font-size: 0.9rem;
}
.warnbox p { margin: 0; }
.day-tag {
  display: inline-block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 2px;
}
.warn-cites { margin-top: 6px; display: flex; gap: 6px; flex-wrap: wrap; }
.warn-cites a {
  font-size: 0.78rem;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 9px;
  text-decoration: none;
}
.warn-cites a:hover { color: var(--text); border-color: var(--muted); }

.blockbox {
  border: 1px solid color-mix(in srgb, var(--sev-block) 45%, var(--border));
  background: color-mix(in srgb, var(--sev-block) 9%, transparent);
  border-radius: 12px;
  padding: 14px;
  font-size: 0.93rem;
}
.blockbox .blockbox-title {
  margin: 0 0 6px;
  font-weight: 700;
  color: var(--sev-block);
  font-size: 0.95rem;
}
.blockbox p { margin: 0; }

/* badges and legend */

.badge {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  padding: 2px 9px;
  border-radius: 999px;
  border: 1px solid var(--g-practice);
  color: var(--g-practice);
  background: color-mix(in srgb, var(--g-practice) 10%, transparent);
  vertical-align: middle;
}
.badge[data-grade="verified"] { border-color: var(--g-verified); color: var(--g-verified); background: color-mix(in srgb, var(--g-verified) 10%, transparent); }
.badge[data-grade="mechanism"] { border-color: var(--g-mechanism); color: var(--g-mechanism); background: color-mix(in srgb, var(--g-mechanism) 10%, transparent); }
.badge[data-grade="preference"] { border-color: var(--g-preference); color: var(--g-preference); background: color-mix(in srgb, var(--g-preference) 10%, transparent); }
.badge[data-grade="extrapolation"] { border-color: var(--g-extrapolation); color: var(--g-extrapolation); background: color-mix(in srgb, var(--g-extrapolation) 10%, transparent); }

.grade-note { line-height: 2; font-size: 0.88rem; color: var(--muted); }

.ped-line { margin: 10px 0 0; font-weight: 650; font-size: 0.95rem; }
.ped-text { margin: 8px 0 10px; font-size: 0.92rem; color: color-mix(in srgb, var(--text) 85%, var(--muted)); }

#legend-list { margin: 0; }
#legend-list dt { margin: 10px 0 2px; }
#legend-list dt:first-child { margin-top: 0; }
#legend-list dd { margin: 0; color: var(--muted); font-size: 0.9rem; }

footer { color: var(--muted); font-size: 0.82rem; padding: 8px 4px 0; }

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

dialog#explain {
  border: none;
  padding: 0;
  background: transparent;
  width: 100%;
  max-width: 640px;
  margin: auto auto 0;
}
dialog#explain::backdrop { background: rgb(8 9 10 / 0.6); }

.sheet {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px 20px 0 0;
  padding: 18px 18px calc(22px + env(safe-area-inset-bottom));
  max-height: 85dvh;
  overflow-y: auto;
  overscroll-behavior: contain;
}
@media (min-width: 700px) {
  dialog#explain { margin: auto; }
  .sheet { border-radius: 20px; }
}

.sheet-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
.close {
  border: 1px solid var(--border);
  background: var(--card-raise);
  color: var(--muted);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.85rem;
  cursor: pointer;
  flex-shrink: 0;
}
.close:hover { color: var(--text); border-color: var(--muted); }
.close:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

.formula {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.88rem;
  background: var(--formula-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  overflow-x: auto;
  white-space: nowrap;
  margin: 10px 0;
}

#explain-grade { margin: 0; }
#explain-desc { font-size: 0.93rem; color: color-mix(in srgb, var(--text) 90%, var(--muted)); margin: 10px 0 4px; }

.cite {
  border-top: 1px solid var(--border);
  padding: 12px 0 2px;
  margin-top: 12px;
}
.cite-src { margin: 0 0 4px; font-size: 0.85rem; color: var(--muted); }
.cite-finding { margin: 0 0 6px; font-size: 0.92rem; }
.cite-links { margin: 0; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.cite-links a { color: var(--accent); font-size: 0.85rem; word-break: break-all; }
.tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 1px 8px;
}
.cite-note { font-size: 0.8rem; color: var(--muted); }

/* ---------------------------------------------------------- trend verifier */

input[type="date"] {
  width: 100%;
  margin-top: 6px;
  font-size: 1rem;
  padding: 9px 12px;
  background: var(--card-raise);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-family: inherit;
}
input[type="date"]:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

.weigh-row { align-items: stretch; }
.weigh-row input[type="date"] { flex: 1.3; margin-top: 6px; }
.weigh-row input[type="number"] { flex: 1; }
.weigh-row .ghost { margin-top: 6px; }

.plan-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
}

.w-list { list-style: none; margin: 6px 0 0; padding: 0; }
.w-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 2px;
  border-bottom: 1px solid var(--border);
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
  color: color-mix(in srgb, var(--text) 85%, var(--muted));
}
.w-list li:last-child { border-bottom: none; }
.w-list button {
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 1rem;
  padding: 2px 8px;
  border-radius: 6px;
}
.w-list button:hover { color: var(--sev-block); }
.w-list button:focus-visible { outline: 2px solid var(--accent); }

.callbox {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  margin: 14px 0 4px;
  background: var(--card-raise);
}
.call-head { margin: 0 0 4px; }
.call-btn {
  font-size: 1.15rem;
  font-weight: 750;
  letter-spacing: -0.01em;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  color: var(--text);
  text-decoration: underline dotted;
  text-decoration-color: color-mix(in srgb, var(--accent) 55%, transparent);
  text-underline-offset: 5px;
}
.callbox[data-call="hold"] .call-btn { color: var(--g-verified); }
.callbox[data-call="adjust"] .call-btn { color: var(--sev-warn); }
.callbox[data-call="phase-change"] .call-btn { color: var(--g-preference); }
.callbox[data-call="insufficient"] .call-btn { color: var(--muted); }
.call-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.trend-line { margin: 6px 0 0; }
.trend-line button {
  border: none;
  background: transparent;
  color: color-mix(in srgb, var(--text) 80%, var(--muted));
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
  padding: 2px 0;
  cursor: pointer;
  text-align: left;
  text-decoration: underline dotted;
  text-decoration-color: color-mix(in srgb, var(--accent) 40%, transparent);
  text-underline-offset: 4px;
}
.trend-line button:hover { color: var(--text); }
.trend-line button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.callbox .warnbox { margin-top: 12px; margin-bottom: 0; }

.offerbox {
  border-left: 3px solid var(--g-preference);
  background: color-mix(in srgb, var(--g-preference) 8%, transparent);
  border-radius: 0 10px 10px 0;
  padding: 10px 12px;
  margin: 12px 0 0;
}
.offer-title { margin: 0; }
.offer-title button {
  border: none;
  background: transparent;
  color: var(--text);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0;
  cursor: pointer;
  text-decoration: underline dotted;
  text-decoration-color: color-mix(in srgb, var(--g-preference) 55%, transparent);
  text-underline-offset: 4px;
}
.offer-title button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.offer-line { margin: 4px 0 0; font-size: 0.9rem; color: color-mix(in srgb, var(--text) 80%, var(--muted)); }
.offer-actions { display: flex; gap: 8px; margin: 10px 0 0; flex-wrap: wrap; }

.apply { border-color: color-mix(in srgb, var(--sev-warn) 60%, var(--border)); color: var(--sev-warn); }
.apply:hover { border-color: var(--sev-warn); color: var(--sev-warn); }

.hunger,
.checkline {
  display: flex;
  gap: 8px;
  align-items: center;
  margin: 12px 0 0;
  font-size: 0.92rem;
  font-weight: 500;
}
.hunger input,
.checkline input { accent-color: var(--accent); width: 17px; height: 17px; }
.checkline { margin-bottom: 12px; }
.checkline-label {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.92rem;
  font-weight: 500;
  cursor: pointer;
}

.pmode-hint {
  display: flex;
  gap: 8px;
  align-items: center;
  margin: -6px 0 14px;
}
.pmode-hint .hint { margin: 0; }

.store-row { gap: 8px; margin-top: 14px; flex-wrap: wrap; }

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

@media (prefers-reduced-motion: no-preference) {
  dialog#explain[open] .sheet { animation: rise 0.18s ease-out; }
  @keyframes rise {
    from { transform: translateY(14px); opacity: 0.6; }
    to { transform: translateY(0); opacity: 1; }
  }
}