:root {
  color-scheme: light dark;
  --bg: #f3ead2;
  --bg-2: #e5d4ab;
  --panel: rgba(255, 250, 235, 0.88);
  --panel-strong: #fff9e9;
  --text: #29271f;
  --muted: #6b624f;
  --line: rgba(69, 60, 41, 0.23);
  --brand: #476c43;
  --brand-2: #8c512f;
  --accent: #d09a36;
  --danger: #a34336;
  --shadow: 0 14px 40px rgba(56, 42, 20, 0.11);
  --radius: 18px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171c17;
    --bg-2: #222a20;
    --panel: rgba(36, 42, 33, 0.91);
    --panel-strong: #2b3227;
    --text: #f3ead2;
    --muted: #b9ad91;
    --line: rgba(235, 220, 185, 0.18);
    --brand: #8fb083;
    --brand-2: #d28a5d;
    --accent: #e0b455;
    --danger: #e07d6f;
    --shadow: 0 14px 40px rgba(0, 0, 0, 0.24);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

.auth-locked body > :not(.auth-gate) { display: none !important; }

.auth-gate {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.auth-card {
  width: min(480px, 100%);
  padding: clamp(26px, 6vw, 46px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.auth-card h1 { margin-top: 8px; font-size: clamp(2rem, 9vw, 3.8rem); }
.auth-form { display: grid; gap: 12px; margin-top: 24px; }
.auth-error { margin: 0; color: var(--danger); }

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background:
    radial-gradient(circle at 10% -10%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 28rem),
    linear-gradient(145deg, var(--bg), var(--bg-2));
  font: 16px/1.65 ui-serif, Georgia, "Noto Serif SC", "Songti SC", serif;
}

button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: var(--brand); }

.site-shell { min-height: 100vh; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(18px);
}

.nav-wrap, .page, .footer-inner {
  width: min(1180px, calc(100% - 32px));
  margin-inline: auto;
}

.nav-wrap {
  display: flex;
  align-items: center;
  gap: 22px;
  min-height: 68px;
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: .02em;
  white-space: nowrap;
}

.brand small { color: var(--muted); font-weight: 500; }

.nav-links {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-links::-webkit-scrollbar { display: none; }

.nav-links a {
  padding: 8px 11px;
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] { color: var(--text); background: var(--panel-strong); }

.page { padding: 48px 0 72px; }
.hero { padding: 34px 0 28px; }
.eyebrow { color: var(--brand-2); font-weight: 750; letter-spacing: .11em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.25; }
h1 { max-width: 850px; margin: 8px 0 14px; font-size: clamp(2rem, 6vw, 4.8rem); letter-spacing: -.04em; }
h2 { margin: 0 0 14px; font-size: clamp(1.4rem, 3vw, 2.15rem); }
h3 { margin: 0 0 8px; font-size: 1.08rem; }
.lead { max-width: 780px; margin: 0; color: var(--muted); font-size: 1.08rem; }

.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.stat strong { display: block; margin-top: 4px; font-size: 2rem; line-height: 1.1; }
.muted { color: var(--muted); }
.tiny { font-size: .86rem; }
.section { margin-top: 42px; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 18px; margin-bottom: 15px; }
.section-head p { margin: 0; color: var(--muted); }

.button, button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 42px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--text);
  background: var(--panel-strong);
  text-decoration: none;
  cursor: pointer;
}
.button:hover, button:hover { transform: translateY(-1px); box-shadow: 0 7px 18px color-mix(in srgb, var(--text) 9%, transparent); }
.button.primary, button.primary { border-color: transparent; color: #fff; background: var(--brand); }
.button.danger, button.danger { color: var(--danger); }
.button.ghost, button.ghost { background: transparent; box-shadow: none; }

.actions { display: flex; flex-wrap: wrap; gap: 9px; }
.stack { display: grid; gap: 12px; }
.cluster { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; }

.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: .84rem;
  background: color-mix(in srgb, var(--panel-strong) 70%, transparent);
}
.tag.high, .tag.todo { color: var(--brand-2); }
.tag.done { color: var(--brand); }

.progress {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: color-mix(in srgb, var(--muted) 20%, transparent);
}
.progress > span { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--brand), var(--accent)); transition: width .3s ease; }

.todo-row, .question-row, .boss-row {
  display: grid;
  gap: 10px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}
.todo-row:first-child, .question-row:first-child, .boss-row:first-child { border-top: 0; }
.todo-main { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 12px; align-items: start; }
.todo-main input { width: 20px; height: 20px; margin-top: 4px; accent-color: var(--brand); }
.todo-row.is-done h3 { text-decoration: line-through; color: var(--muted); }
.todo-meta { display: flex; flex-wrap: wrap; gap: 7px; }
.why { margin: 4px 0 0; color: var(--muted); }

.toolbar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; }
.field { display: grid; gap: 6px; min-width: 150px; }
.field.grow { flex: 1 1 280px; }
label { color: var(--muted); font-size: .9rem; }
input[type="text"], input[type="search"], input[type="password"], select, textarea {
  width: 100%;
  min-height: 43px;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 11px;
  outline: none;
  color: var(--text);
  background: var(--panel-strong);
}
textarea { min-height: 120px; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--brand); box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 20%, transparent); }

dialog {
  width: min(680px, calc(100% - 28px));
  max-height: 88vh;
  padding: 0;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  background: var(--panel-strong);
  box-shadow: 0 30px 80px rgba(0,0,0,.32);
}
dialog::backdrop { background: rgba(0,0,0,.5); backdrop-filter: blur(3px); }
.dialog-body { padding: 24px; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 9px; margin-top: 18px; }

.callout { border-left: 4px solid var(--accent); padding: 13px 16px; background: color-mix(in srgb, var(--accent) 9%, transparent); }
.timeline { position: relative; display: grid; gap: 16px; padding-left: 26px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px; background: var(--line); }
.timeline-item { position: relative; }
.timeline-item::before { content: ""; position: absolute; left: -24px; top: 8px; width: 10px; height: 10px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 5px var(--bg); }

.guide-layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 30px; align-items: start; }
.guide-menu { position: sticky; top: 94px; display: grid; gap: 6px; }
.guide-menu a { padding: 9px 12px; border-radius: 9px; color: var(--muted); text-decoration: none; }
.guide-menu a:hover { color: var(--text); background: var(--panel); }
.prose section { scroll-margin-top: 92px; margin-bottom: 48px; }
.prose li + li { margin-top: 7px; }
.prose table { width: 100%; border-collapse: collapse; }
.prose th, .prose td { padding: 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }

.photo-grid { columns: 4 220px; column-gap: 16px; }
.photo-card { break-inside: avoid; margin-bottom: 16px; overflow: hidden; padding: 0; }
.photo-card img { display: block; width: 100%; height: auto; background: var(--bg-2); }
.photo-caption { padding: 13px 15px; }
.empty { padding: 42px 20px; border: 1px dashed var(--line); border-radius: var(--radius); color: var(--muted); text-align: center; }

.recipe-recommendations { align-items: stretch; }
.recipe-card { display: flex; flex-direction: column; }
.recipe-card h3 { margin-top: 12px; }
.recipe-card .muted:last-child { margin-top: auto; }
.food-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; margin: 10px 0; }
.food-stats span { padding: 7px 8px; border-radius: 9px; background: color-mix(in srgb, var(--brand) 8%, transparent); text-align: center; font-size: .86rem; }
.food-stats b { display: block; color: var(--text); font-size: 1rem; }
.recipe-list { margin-top: 16px; padding-top: 6px; padding-bottom: 6px; }
.recipe-row { display: grid; grid-template-columns: minmax(160px, .75fr) minmax(260px, 1.3fr) minmax(280px, 1fr); gap: 22px; align-items: start; padding: 18px 0; border-top: 1px solid var(--line); }
.recipe-row:first-child { border-top: 0; }
.recipe-row p { margin: 4px 0; }
.recipe-name { display: grid; justify-items: start; gap: 5px; }
.seed-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.seed-card { display: grid; grid-template-columns: auto minmax(110px, 1fr) auto minmax(130px, 1fr); gap: 11px; align-items: center; }
.seed-card h3 { margin: 1px 0 0; }
.seed-card strong { display: block; }
.seed-mark { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; color: var(--brand); background: color-mix(in srgb, var(--brand) 12%, transparent); font-size: 1.35rem; }
.seed-arrow { color: var(--muted); }
.seed-card > .cluster, .seed-card > .nutrients { grid-column: 2 / -1; }
.nutrients { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
.nutrients span { padding: 6px 8px; border-radius: 8px; background: color-mix(in srgb, var(--accent) 8%, transparent); font-size: .84rem; text-align: center; }
.reference-image { display: block; width: min(100%, 540px); height: auto; margin-top: 14px; border-radius: 12px; }
details summary { list-style: none; width: max-content; }
details summary::-webkit-details-marker { display: none; }

.circuit-list, .scan-list { margin-top: 16px; padding-top: 6px; padding-bottom: 6px; }
.circuit-row { display: grid; grid-template-columns: auto minmax(180px, .75fr) minmax(260px, 1.25fr) minmax(270px, 1.1fr); gap: 18px; align-items: start; padding: 18px 0; border-top: 1px solid var(--line); }
.circuit-row:first-child, .scan-row:first-child { border-top: 0; }
.circuit-row.is-done h3, .scan-row.is-done h3 { text-decoration: line-through; color: var(--muted); }
.circuit-check input, .scan-row > input { width: 20px; height: 20px; margin-top: 4px; accent-color: var(--brand); }
.circuit-title { display: grid; justify-items: start; gap: 5px; }
.circuit-row p { margin: 4px 0; }
.scan-targets { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.scan-targets b { color: var(--text); }
.board-alpha { background: color-mix(in srgb, var(--brand) 13%, transparent); }
.board-beta { background: color-mix(in srgb, var(--accent) 13%, transparent); }
.board-gamma { background: color-mix(in srgb, var(--brand-2) 13%, transparent); }
.scan-row { display: grid; grid-template-columns: auto minmax(190px, 1.2fr) minmax(105px, .55fr) minmax(180px, 1fr) minmax(130px, .65fr); gap: 16px; align-items: center; padding: 14px 0; border-top: 1px solid var(--line); }
.scan-row h3, .scan-row p { margin: 0; }
.scan-row > div { display: grid; align-content: center; gap: 2px; }
.bio-amount strong { font-size: 1.45rem; color: var(--brand); }

footer { border-top: 1px solid var(--line); }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding: 26px 0 38px; color: var(--muted); font-size: .9rem; }

@media (max-width: 850px) {
  .grid-4, .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .guide-layout { grid-template-columns: 1fr; }
  .guide-menu { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .recipe-row { grid-template-columns: 1fr 1.5fr; }
  .recipe-row > :last-child { grid-column: 1 / -1; }
  .seed-grid { grid-template-columns: 1fr; }
  .circuit-row { grid-template-columns: auto minmax(160px, .7fr) minmax(0, 1.3fr); }
  .circuit-row > :last-child { grid-column: 2 / -1; }
  .scan-row { grid-template-columns: auto minmax(180px, 1fr) minmax(95px, auto); }
  .scan-row > :nth-child(4), .scan-row > :nth-child(5) { grid-column: 2 / -1; }
}

@media (max-width: 600px) {
  .nav-wrap { align-items: flex-start; flex-direction: column; gap: 4px; padding: 11px 0 8px; }
  .nav-links { width: 100%; }
  .page { padding-top: 28px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .section-head { align-items: flex-start; flex-direction: column; }
  .todo-main { grid-template-columns: auto minmax(0, 1fr); }
  .todo-main > .actions { grid-column: 2; }
  .guide-menu { grid-template-columns: 1fr 1fr; }
  .recipe-row { grid-template-columns: 1fr; gap: 10px; }
  .recipe-row > :last-child { grid-column: auto; }
  .seed-card { grid-template-columns: auto minmax(0, 1fr); }
  .seed-card .seed-arrow { display: none; }
  .seed-card > :nth-child(4), .seed-card > .cluster, .seed-card > .nutrients { grid-column: 2; }
  .food-stats, .nutrients { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .circuit-row { grid-template-columns: auto minmax(0, 1fr); gap: 10px; }
  .circuit-row > :nth-child(3), .circuit-row > :last-child { grid-column: 2; }
  .scan-row { grid-template-columns: auto minmax(0, 1fr) auto; gap: 10px; }
  .scan-row > :nth-child(4), .scan-row > :nth-child(5) { grid-column: 2 / -1; }
}