:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f3f1ea;
  --surface: #fffcf7;
  --surface-2: #f6f3eb;
  --text: #1c2a28;
  --muted: #5d6e6b;
  --line: #e4ddd2;
  --accent: #0f6e6b;
  --accent-soft: #e5f3f1;
  --on-accent: #ffffff;
  --good: #17693c;
  --good-soft: #e5f6ec;
  --warn: #8a5608;
  --warn-soft: #fff3dc;
  --bad: #9d1c32;
  --bad-soft: #fdecef;
  --on-bad: #ffffff;
  --shadow: 0 10px 30px rgba(48, 42, 32, 0.06);
  --chart-1: #0f6e6b;
  --chart-2: #c46b45;
  --chart-flag: #a56b12;
  --chart-bad: #9d1c32;
  --chart-normal: #0f6e6b;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #101615;
  --surface: #1a2321;
  --surface-2: #222c2a;
  --text: #e7f1ef;
  --muted: #a9bbb7;
  --line: #31423e;
  --accent: #7edcd4;
  --accent-soft: #163330;
  --on-accent: #06211f;
  --good: #8ee0b0;
  --good-soft: #143226;
  --warn: #f0c27a;
  --warn-soft: #3a2c12;
  --bad: #ff8b9a;
  --bad-soft: #3d1620;
  --on-bad: #2a0c12;
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
  --chart-1: #7edcd4;
  --chart-2: #f0a07a;
  --chart-flag: #f0c27a;
  --chart-bad: #ff8b9a;
  --chart-normal: #7edcd4;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  max-width: 100%;
  min-height: 100%;
}

body {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.45;
  background: var(--bg);
  color: var(--text);
  padding-top: env(safe-area-inset-top);
}

img, svg, canvas, video { max-width: 100%; }

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

[hidden] { display: none !important; }

.skip {
  position: absolute;
  left: 8px;
  top: 8px;
  transform: translateY(-150%);
  background: var(--surface);
  color: var(--text);
  padding: 8px 12px;
  z-index: 50;
  border-radius: 8px;
}

.skip:focus { transform: none; }

.shell {
  min-height: 100dvh;
  background: var(--bg);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: stretch;
  padding: 12px 16px 10px;
  background: var(--bg);
}

.brand {
  display: flex;
  gap: 10px;
  align-items: center;
  min-width: 0;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 12px;
}

.eyebrow {
  margin: 0;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

h1, h2, h3, p { overflow-wrap: anywhere; }

h1 {
  margin: 0;
  font-size: 1.45rem;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

h2 {
  margin: 0 0 8px;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

h3 { margin: 0; font-size: 1rem; }

.disclaimer {
  margin: 0;
  color: var(--warn);
  background: var(--warn-soft);
  border-radius: 12px;
  padding: 8px 10px;
  font-size: 0.8125rem;
  font-weight: 650;
  line-height: 1.35;
}

main {
  padding: 4px 16px calc(84px + env(safe-area-inset-bottom));
}

.stack { display: grid; gap: 12px; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 16px;
  box-shadow: var(--shadow);
  min-width: 0;
}

.card p { margin: 6px 0 0; }

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

.metric {
  margin: 4px 0 0;
  font-size: 1.7rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
  line-height: 1.15;
}

.row-between {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: flex-start;
}

.pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1.3;
  background: var(--surface-2);
  color: var(--muted);
  max-width: 100%;
}

.pill.normal { background: var(--good-soft); color: var(--good); }
.pill.low, .pill.high { background: var(--warn-soft); color: var(--warn); }
.pill.critical { background: var(--bad-soft); color: var(--bad); }

.sample-tag {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
}

.guidance {
  margin-top: 8px;
  color: var(--text);
  font-size: 0.95rem;
}

.trend-note {
  margin-top: 8px;
  font-weight: 650;
}

.seek {
  background: #7d1024;
  color: #fff;
  border-radius: 18px;
  padding: 16px;
}

.seek strong {
  display: block;
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.seek p { margin: 6px 0 0; }

.hint {
  background: var(--accent-soft);
  border: 1px solid transparent;
}

.btn, .btn-primary, .btn-secondary, .btn-danger, .btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid transparent;
  font-weight: 700;
  text-align: center;
  width: 100%;
  position: relative;
}

.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-secondary { background: var(--surface); color: var(--text); border-color: var(--line); }
.btn-danger { background: var(--bad); color: var(--on-bad); }
.btn-ghost {
  width: auto;
  min-height: 44px;
  background: transparent;
  color: var(--accent);
  padding: 8px 10px;
}

.btn-row { display: grid; gap: 8px; }

.file-btn input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.type-grid, .segment {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.segment { grid-template-columns: repeat(4, 1fr); }

.type-grid button, .segment button {
  min-height: 48px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  font-weight: 650;
  padding: 8px;
}

.type-grid button[aria-pressed="true"],
.segment button[aria-pressed="true"] {
  background: var(--accent);
  color: var(--on-accent);
  border-color: transparent;
}

form { display: grid; gap: 12px; margin-top: 14px; }

.field {
  display: grid;
  gap: 6px;
  min-width: 0;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--muted);
}

.field input, .field select, .field textarea, .plain-input {
  width: 100%;
  min-height: 48px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  padding: 10px 12px;
  font-size: 16px;
  font-weight: 550;
}

textarea { min-height: 96px; resize: vertical; }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.grid-2 > * { min-width: 0; }

.form-error {
  margin: 0;
  color: var(--bad);
  font-weight: 700;
}

.entry {
  display: grid;
  gap: 8px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.entry:first-child { border-top: 0; padding-top: 0; }

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

.entry-actions button {
  flex: 1;
  min-height: 44px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--surface-2);
  font-weight: 700;
}

.progress-track {
  height: 10px;
  border-radius: 999px;
  background: var(--surface-2);
  overflow: hidden;
  border: 1px solid var(--line);
}

.progress-bar {
  height: 100%;
  width: 0;
  background: var(--accent);
}

.review-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px;
  margin-bottom: 10px;
  background: var(--surface-2);
}

.review-row > * { min-width: 0; }
.span-2 { grid-column: 1 / -1; }

.chart-box { position: relative; height: 220px; }
.chart-box canvas { width: 100% !important; height: 100% !important; }

.point-list {
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 0.875rem;
  font-variant-numeric: tabular-nums;
}

.point-list li { padding: 2px 0; }

pre.raw {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.8rem;
  background: var(--surface-2);
  border-radius: 12px;
  padding: 12px;
  max-height: 220px;
  overflow: auto;
}

.tabbar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10;
  display: flex;
  background: var(--surface);
  border-top: 1px solid var(--line);
  padding: 4px 4px calc(4px + env(safe-area-inset-bottom));
}

.tabbar button {
  flex: 1 1 0;
  min-width: 0;
  min-height: 52px;
  border: 0;
  background: transparent;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 4px 2px;
}

.tabbar button[aria-selected="true"] { color: var(--accent); }

.tabbar svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: rgba(16, 22, 21, 0.5);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 16px;
  padding-bottom: calc(16px + env(safe-area-inset-bottom));
}

.modal-card {
  width: min(520px, 100%);
  background: var(--surface);
  color: var(--text);
  border-radius: 20px;
  padding: 20px;
  max-height: min(80dvh, 640px);
  overflow: auto;
}

.modal-actions { display: grid; gap: 8px; margin-top: 16px; }

#modal-body { white-space: pre-wrap; }

.toast {
  position: fixed;
  z-index: 35;
  left: 50%;
  bottom: calc(78px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  width: min(440px, calc(100% - 32px));
  background: var(--text);
  color: var(--bg);
  border-radius: 14px;
  padding: 12px 14px;
  font-weight: 650;
  pointer-events: none;
}

details summary { font-weight: 700; min-height: 44px; display: flex; align-items: center; }

.noscript {
  margin: 16px;
  padding: 16px;
  background: var(--warn-soft);
  border-radius: 12px;
}

@media (min-width: 900px) {
  body { background: #d5dedb; }
  :root[data-theme="dark"] body, :root[data-theme="dark"] { background: #0b0f0e; }
  .shell {
    width: min(760px, calc(100% - 48px));
    margin: 24px auto;
    min-height: calc(100dvh - 48px);
    border-radius: 28px;
    box-shadow: 0 24px 60px rgba(20, 32, 30, 0.16);
    overflow: clip;
    position: relative;
  }
  .tabbar {
    position: sticky;
    width: auto;
    border-radius: 0 0 28px 28px;
  }
  main { padding-bottom: 24px; }
  .modal { align-items: center; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}