/* Materia Medica Indonesia — design tokens */
:root {
  --bg: #f8f6f1;
  --bg-soft: #f1eee6;
  --surface: #ffffff;
  --ink: #17231d;
  --ink-2: #33423a;
  --muted: #66746c;
  --line: #e5e0d5;
  --line-strong: #d6d0c2;
  --accent: #2f6b4f;
  --accent-ink: #ffffff;
  --accent-soft: #e4efe8;
  --accent-2: #b5652b;
  --worse: #b4412f;
  --worse-soft: #fbe9e5;
  --better: #2b7a4b;
  --better-soft: #e3f3e8;
  --rel: #3f5fa8;
  --dose: #8a5a12;
  --shadow: 0 1px 2px rgba(23, 35, 29, .05), 0 8px 24px -12px rgba(23, 35, 29, .18);
  --shadow-lg: 0 2px 4px rgba(23, 35, 29, .05), 0 24px 48px -20px rgba(23, 35, 29, .28);
  --radius: 14px;
  --radius-sm: 9px;
  --font-ui: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --topbar-h: 64px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e1411; --bg-soft: #131b17; --surface: #161f1b; --ink: #e8efe9; --ink-2: #c9d4cd;
    --muted: #93a39a; --line: #243029; --line-strong: #2f3d35; --accent: #6cc59a; --accent-ink: #0b1510;
    --accent-soft: #1b2e24; --accent-2: #e39a62; --worse: #f08a78; --worse-soft: #3a1f1a;
    --better: #74d39c; --better-soft: #16301f; --rel: #93aef0; --dose: #e2b86a;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px -12px rgba(0,0,0,.6);
    --shadow-lg: 0 2px 4px rgba(0,0,0,.4), 0 24px 48px -20px rgba(0,0,0,.7);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0e1411; --bg-soft: #131b17; --surface: #161f1b; --ink: #e8efe9; --ink-2: #c9d4cd;
  --muted: #93a39a; --line: #243029; --line-strong: #2f3d35; --accent: #6cc59a; --accent-ink: #0b1510;
  --accent-soft: #1b2e24; --accent-2: #e39a62; --worse: #f08a78; --worse-soft: #3a1f1a;
  --better: #74d39c; --better-soft: #16301f; --rel: #93aef0; --dose: #e2b86a;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px -12px rgba(0,0,0,.6);
  --shadow-lg: 0 2px 4px rgba(0,0,0,.4), 0 24px 48px -20px rgba(0,0,0,.7);
  color-scheme: dark;
}

/* Base */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--topbar-h) + 16px); }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 400 16px/1.65 var(--font-ui); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration: underline; }
img, svg { display: block; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.15; letter-spacing: -.01em; margin: 0 0 .5em; }
p { margin: 0 0 1em; }
small, .small { font-size: .875rem; }
.muted { color: var(--muted); }
.muted-ink { color: var(--muted); font-weight: 500; }
.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--accent-ink); padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 12px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
svg { stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* Top bar */
.topbar {
  position: sticky; top: 0; z-index: 40; height: var(--topbar-h);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none !important; }
.brand-mark { width: 30px; height: 30px; color: var(--accent); }
.brand-text { font-family: var(--font-display); font-size: 1.12rem; font-weight: 500; letter-spacing: -.01em; white-space: nowrap; }
.brand-text b { font-weight: 700; color: var(--accent); }
.topbar-title {
  flex: 1; min-width: 0; display: flex; align-items: center; gap: 10px;
  margin-left: 6px; padding-left: 18px; border-left: 1px solid var(--line);
  color: var(--ink); text-decoration: none !important;
  opacity: 0; transform: translateY(8px); pointer-events: none; transition: opacity .2s ease, transform .2s ease;
}
.topbar.stuck .topbar-title { opacity: 1; transform: none; pointer-events: auto; }
.tt-name { font-family: var(--font-display); font-weight: 600; font-size: 1.12rem; line-height: 1.2; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tt-sec { flex: none; font-size: .78rem; font-weight: 600; color: var(--accent); background: var(--accent-soft); padding: 2px 10px; border-radius: 999px; white-space: nowrap; }
.tt-sec:empty { display: none; }
.topbar-title:hover .tt-name { color: var(--accent); }
.topnav { display: flex; flex: none; align-items: center; gap: 4px; }
.topnav a { color: var(--ink-2); text-decoration: none; font-weight: 500; font-size: .94rem; padding: 8px 12px; border-radius: 999px; }
.topnav a:hover, .topnav a[aria-current] { background: var(--accent-soft); color: var(--accent); }
.icon-btn {
  display: grid; place-items: center; width: 38px; height: 38px; margin-left: 4px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink-2); cursor: pointer;
}
.icon-btn:hover { border-color: var(--line-strong); color: var(--accent); }
.icon-btn svg { width: 18px; height: 18px; }
.i-moon { display: none; }
:root[data-theme="dark"] .i-sun { display: none; }
:root[data-theme="dark"] .i-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .i-sun { display: none; }
  :root:not([data-theme="light"]) .i-moon { display: block; }
}

/* Buttons, chips, badges */
.btn {
  display: inline-flex; align-items: center; gap: 8px; border: 1px solid transparent; border-radius: 999px;
  padding: 10px 18px; font: 600 .95rem var(--font-ui); cursor: pointer; text-decoration: none !important;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { filter: brightness(1.06); }
.btn-ghost { background: var(--surface); color: var(--ink-2); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--line-strong); color: var(--accent); }
.btn-sm { padding: 6px 12px; font-size: .85rem; }
.chip {
  display: inline-flex; align-items: center; white-space: nowrap; padding: 5px 12px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--line); color: var(--ink-2); font-size: .86rem; font-weight: 500; text-decoration: none !important;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.badge { display: inline-block; font-size: .72rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; padding: 3px 9px; border-radius: 999px; background: var(--bg-soft); color: var(--muted); border: 1px solid var(--line); }
.badge-live { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.eyebrow { font-size: .8rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--accent-2); margin-bottom: 14px; }
.kbd { font: 500 .78rem var(--font-ui); color: var(--muted); border: 1px solid var(--line-strong); border-bottom-width: 2px; border-radius: 6px; padding: 1px 7px; }

/* Search */
.search { position: relative; display: flex; align-items: center; gap: 8px; background: var(--surface); border: 1px solid var(--line-strong); border-radius: 999px; padding: 6px 6px 6px 48px; box-shadow: var(--shadow); transition: border-color .15s, box-shadow .15s; }
.search:focus-within { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft), var(--shadow); }
.search-icon { position: absolute; left: 18px; width: 20px; height: 20px; color: var(--muted); }
.search input { flex: 1; min-width: 0; border: 0; background: transparent; color: var(--ink); font: 400 1.02rem var(--font-ui); padding: 10px 0; outline: none; }
.search input::placeholder { color: var(--muted); }
.search input::-webkit-search-cancel-button { cursor: pointer; }
.search-book { padding-right: 14px; }

/* Home hero */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(60rem 30rem at 85% -10%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 60%),
    radial-gradient(40rem 22rem at -5% 110%, color-mix(in srgb, var(--accent-2) 12%, transparent), transparent 60%);
}
.hero-inner { position: relative; padding: 88px 20px 72px; max-width: 880px; }
.hero-title { font-size: clamp(2.2rem, 5.4vw, 4rem); font-weight: 600; margin-bottom: 20px; }
.hero-title em { font-style: italic; font-weight: 500; color: var(--accent); }
.hero-lead { font-size: 1.14rem; color: var(--ink-2); max-width: 640px; margin-bottom: 30px; }
.search-hero { max-width: 640px; }
.quick { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 18px; }

/* Shelf */
.shelf-section { padding: 64px 20px 24px; }
.section-head { margin-bottom: 26px; }
.section-head h2 { font-size: 1.9rem; margin-bottom: 6px; }
.shelf { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 22px; }
.book-card { display: flex; flex-direction: column; gap: 14px; color: var(--ink); text-decoration: none !important; }
.book-card h3 { font-size: 1.05rem; margin: 8px 0 2px; }
.book-card p { margin: 0; font-size: .9rem; }
.book-card-soon { opacity: .72; }
.book-card-live .cover { transition: transform .2s, box-shadow .2s; }
.book-card-live:hover .cover { transform: translateY(-4px) rotate(-.6deg); box-shadow: var(--shadow-lg); }
.cover {
  position: relative; aspect-ratio: 3 / 4; border-radius: 6px 14px 14px 6px; padding: 22px 18px 18px 26px;
  display: flex; flex-direction: column; color: #f7f1e3; box-shadow: var(--shadow); overflow: hidden;
  background: linear-gradient(135deg, #25533d, #173828);
}
.cover::before { content: ""; position: absolute; left: 10px; top: 0; bottom: 0; width: 2px; background: rgba(255,255,255,.18); box-shadow: 4px 0 0 rgba(0,0,0,.12); }
.cover::after { content: ""; position: absolute; inset: 0; background: radial-gradient(120% 60% at 100% 0%, rgba(255,255,255,.14), transparent 60%); }
.cover-title { font-family: var(--font-display); font-size: 1.22rem; font-weight: 600; line-height: 1.12; }
.cover-author { margin-top: auto; font-size: .78rem; letter-spacing: .06em; text-transform: uppercase; opacity: .9; }
.cover-year { font-size: .74rem; opacity: .7; }
.cover-live { background: linear-gradient(140deg, #2f6b4f 0%, #1c4232 70%); }
.cover-live .cover-title { font-size: 1.6rem; }
.cover-1 { background: linear-gradient(140deg, #6b4a2f, #3f2a19); }
.cover-2 { background: linear-gradient(140deg, #3d4f78, #232f4b); }
.cover-3 { background: linear-gradient(140deg, #7a3b3b, #4a2020); }
.cover-0 { background: linear-gradient(140deg, #4f5a3a, #2d3420); }
.cover-lg { width: 190px; flex: none; }
.cover-lg .cover-title { font-size: 1.9rem; }

/* Features */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; padding: 48px 20px 80px; }
.feature { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.feature h3 { font-size: 1.15rem; margin: 14px 0 6px; }
.feature p { margin: 0; font-size: .95rem; }
.feature-icon { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); }
.feature-icon svg { width: 20px; height: 20px; }

/* Breadcrumbs */
.crumbs { display: flex; flex-wrap: wrap; gap: 8px; font-size: .86rem; color: var(--muted); margin-bottom: 14px; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--accent); }

/* Book page */
.book-hero { border-bottom: 1px solid var(--line); background: linear-gradient(180deg, var(--bg-soft), var(--bg)); }
.book-hero-inner { display: flex; gap: 40px; align-items: center; padding-top: 44px; padding-bottom: 40px; }
.book-hero-text h1 { font-size: clamp(1.8rem, 3.6vw, 2.7rem); margin-bottom: 14px; }
.lead { font-size: 1.06rem; color: var(--ink-2); max-width: 720px; }
.stats { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 6px; }
.stats div { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 10px 16px; display: flex; flex-direction: column; min-width: 110px; }
.stats b { font-family: var(--font-display); font-size: 1.5rem; line-height: 1.2; }
.stats span { font-size: .8rem; color: var(--muted); }
.finder { position: sticky; top: var(--topbar-h); z-index: 30; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); padding: 14px 0 10px; }
.letters { display: flex; gap: 2px; overflow-x: auto; margin-top: 10px; padding-bottom: 4px; scrollbar-width: none; }
.letters::-webkit-scrollbar { display: none; }
.letters a { flex: none; min-width: 32px; text-align: center; padding: 4px 8px; border-radius: 8px; font-size: .86rem; font-weight: 600; color: var(--ink-2); text-decoration: none; }
.letters a:hover, .letters a.active { background: var(--accent-soft); color: var(--accent); }
.letters a.dim { opacity: .3; pointer-events: none; }
.letter-group { padding-top: 28px; }
.letter-title { font-size: 2rem; color: var(--accent); border-bottom: 1px solid var(--line); padding-bottom: 8px; margin-bottom: 16px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.rcard {
  display: flex; flex-direction: column; gap: 3px; padding: 16px 18px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line); color: var(--ink); text-decoration: none !important;
  transition: border-color .15s, transform .15s, box-shadow .15s;
}
.rcard:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); transform: translateY(-2px); box-shadow: var(--shadow); }
.rcard-name { font-family: var(--font-display); font-weight: 600; font-size: 1.08rem; line-height: 1.25; }
.rcard-common { font-size: .88rem; color: var(--accent); font-weight: 500; }
.rcard-excerpt { font-size: .86rem; color: var(--muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-top: 4px; }
#remedyIndex { padding-bottom: 80px; }
.results-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-top: 26px; }
.results-head h2 { font-size: 1.35rem; margin: 0; }
.results-head p { margin: 0; }
.empty { padding: 40px 0; color: var(--muted); text-align: center; }
.symptom-results { padding-bottom: 12px; }
.hits { list-style: none; margin: 14px 0 16px; padding: 0; display: grid; gap: 10px; }
.hit { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 18px; }
.hit-top { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.hit-name { font-family: var(--font-display); font-weight: 600; font-size: 1.08rem; color: var(--ink); text-decoration: none; }
.hit-name:hover { color: var(--accent); }
.hit-common { color: var(--muted); font-size: .86rem; margin-left: 6px; }
.hit-count { font-size: .78rem; color: var(--muted); }
.snip { display: block; margin-top: 8px; font-size: .92rem; color: var(--ink-2); text-decoration: none !important; }
.snip:hover .snip-text { color: var(--ink); }
.snip-sec { display: inline-block; font-size: .72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; color: var(--accent); background: var(--accent-soft); border-radius: 6px; padding: 1px 7px; margin-right: 8px; }
mark { background: color-mix(in srgb, var(--accent-2) 26%, transparent); color: inherit; border-radius: 3px; padding: 0 2px; }

/* Remedy page */
.remedy-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 48px; padding-top: 32px; padding-bottom: 80px; }
.toc { position: relative; }
.toc-inner { position: sticky; top: calc(var(--topbar-h) + 24px); max-height: calc(100vh - var(--topbar-h) - 48px); overflow-y: auto; padding-right: 6px; }
.toc-title { font-size: .76rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; }
.toc ol { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--line); }
.toc-link { display: block; padding: 5px 0 5px 14px; margin-left: -1px; border-left: 2px solid transparent; color: var(--muted); text-decoration: none !important; font-size: .9rem; }
.toc-link:hover { color: var(--ink); }
.toc-link.active { color: var(--accent); border-left-color: var(--accent); font-weight: 600; }
.toc-chips { display: none; }
.remedy { max-width: 780px; }
.remedy-head { padding-bottom: 22px; border-bottom: 1px solid var(--line); margin-bottom: 8px; }
.remedy-head h1 { font-size: clamp(2.1rem, 4.6vw, 3.2rem); margin-bottom: 6px; }
.common { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; font-size: 1.15rem; color: var(--accent); font-weight: 500; margin-bottom: 18px; }
.common-en { display: none; font-size: .95rem; color: var(--muted); font-style: italic; font-weight: 400; }
.show-en .common-en { display: inline; }
.toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; }
.switch { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; font-size: .92rem; color: var(--ink-2); user-select: none; }
.switch input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.switch-track { position: relative; width: 40px; height: 23px; border-radius: 999px; background: var(--line-strong); transition: background .2s; flex: none; }
.switch-thumb { position: absolute; top: 3px; left: 3px; width: 17px; height: 17px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.3); transition: transform .2s; }
.switch input:checked + .switch-track { background: var(--accent); }
.switch input:checked + .switch-track .switch-thumb { transform: translateX(17px); }
.switch input:focus-visible + .switch-track { outline: 2px solid var(--accent); outline-offset: 2px; }
.notice { margin: 16px 0 0; font-size: .9rem; background: color-mix(in srgb, var(--accent-2) 12%, var(--surface)); border: 1px solid color-mix(in srgb, var(--accent-2) 30%, var(--line)); border-radius: var(--radius-sm); padding: 10px 14px; }
.notice-info { background: color-mix(in srgb, var(--rel) 10%, var(--surface)); border-color: color-mix(in srgb, var(--rel) 28%, var(--line)); }
.tag { display: inline-block; vertical-align: 2px; font: 600 .66rem var(--font-ui); letter-spacing: .05em; text-transform: uppercase; color: var(--rel); border: 1px solid color-mix(in srgb, var(--rel) 35%, var(--line)); border-radius: 5px; padding: 0 5px; margin-left: 4px; }
.sec { padding-top: 30px; }
.sec-title { display: flex; align-items: baseline; gap: 10px; font-size: 1.45rem; margin-bottom: 12px; }
.sec-title small { display: none; font-family: var(--font-ui); font-size: .78rem; font-weight: 500; color: var(--muted); letter-spacing: .02em; }
.show-en .sec-title small { display: inline; }
.sec-title::before { content: ""; flex: none; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); transform: translateY(-4px); }
.sec-mod .sec-title::before { background: var(--accent-2); }
.sec-rel .sec-title::before { background: var(--rel); }
.sec-dose .sec-title::before { background: var(--dose); }
.para { margin-bottom: 14px; }
.t-id { font-size: 1.04rem; line-height: 1.8; color: var(--ink); margin: 0; }
.t-en { display: none; margin: 0; font-size: .95rem; line-height: 1.7; color: var(--muted); }
.show-en .para { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; padding-bottom: 14px; border-bottom: 1px dashed var(--line); }
.show-en .t-en { display: block; }
.para-untranslated .t-id { color: var(--ink-2); font-style: italic; }
.show-en .para-untranslated { grid-template-columns: 1fr; }
.show-en .para-untranslated .t-en { display: none; }
.sec-mod .t-id { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 18px; }
.mod { display: inline-block; font-size: .8em; font-weight: 700; letter-spacing: .02em; border-radius: 6px; padding: 0 7px; font-style: normal; }
.mod-worse { color: var(--worse); background: var(--worse-soft); }
.mod-better { color: var(--better); background: var(--better-soft); }
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); }
.pager-link { display: flex; flex-direction: column; gap: 2px; padding: 14px 18px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); color: var(--ink); text-decoration: none !important; }
.pager-link:hover { border-color: var(--accent); }
.pager-link small { color: var(--muted); }
.pager-link span { font-family: var(--font-display); font-weight: 600; }
.pager-next { text-align: right; grid-column: 2; }

/* About / prose */
.prose-page { max-width: 760px; padding-top: 40px; padding-bottom: 80px; }
.prose-page h1 { font-size: clamp(2rem, 4vw, 2.8rem); }
.prose-page h2 { font-size: 1.4rem; margin-top: 1.8em; }
.prose-page.center { text-align: center; padding-top: 100px; }
.callout { background: var(--surface); border: 1px solid var(--line); border-left: 4px solid var(--accent-2); border-radius: var(--radius-sm); padding: 14px 18px; }

/* Footer */
.footer { border-top: 1px solid var(--line); background: var(--bg-soft); padding: 36px 0; }
.footer-inner { display: grid; grid-template-columns: 1.2fr 1fr; gap: 28px; }
.footer-brand { font-family: var(--font-display); font-size: 1.1rem; margin-bottom: 6px; }
.footer-brand b { color: var(--accent); }
.footer p { margin: 0; }

.to-top { position: fixed; right: 20px; bottom: 20px; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line); background: var(--surface); color: var(--ink-2); box-shadow: var(--shadow); display: grid; place-items: center; cursor: pointer; opacity: 0; transform: translateY(10px); pointer-events: none; transition: opacity .2s, transform .2s; z-index: 35; }
.to-top.show { opacity: 1; transform: none; pointer-events: auto; }
.to-top svg { width: 20px; height: 20px; }

/* Responsive */
@media (max-width: 960px) {
  .remedy-layout { grid-template-columns: minmax(0, 1fr); gap: 0; padding-top: 20px; }
  .toc { display: none; }
  .toc-chips {
    display: flex; gap: 6px; overflow-x: auto; position: sticky; top: var(--topbar-h); z-index: 20;
    margin: 0 -20px; padding: 10px 20px; background: color-mix(in srgb, var(--bg) 90%, transparent);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); scrollbar-width: none;
  }
  .toc-chips::-webkit-scrollbar { display: none; }
  .toc-chips .chip.active { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
  .show-en .para { grid-template-columns: 1fr; gap: 8px; }
  .footer-inner { grid-template-columns: 1fr; }
}
@media (max-width: 700px) {
  :root { --topbar-h: 58px; }
  .wrap { padding: 0 16px; }
  .brand-text { font-size: 1rem; }
  .topnav a { padding: 6px 9px; font-size: .88rem; }
  .hero-inner { padding: 56px 16px 48px; }
  .book-hero-inner { flex-direction: column; align-items: flex-start; gap: 24px; padding-top: 28px; }
  .cover-lg { width: 130px; }
  .cover-lg .cover-title { font-size: 1.3rem; }
  .grid { grid-template-columns: 1fr; }
  .shelf { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
  .toc-chips { margin: 0 -16px; padding: 10px 16px; }
  .search .kbd { display: none; }
  .search-hero .btn { padding: 10px 14px; }
  .t-id { font-size: 1rem; }
  .pager { grid-template-columns: 1fr; }
  .pager-next { grid-column: 1; }
}
@media (max-width: 700px) {
  /* On phones the remedy name replaces the site name once the page title has scrolled away. */
  .topbar.stuck .brand-text, .topbar.stuck .topnav a { display: none; }
  .topbar:not(.stuck) .topbar-title { display: none; }
  .topbar-title { margin-left: 0; padding-left: 10px; }
  .tt-name { font-size: 1.02rem; }
  .tt-sec { display: none; }
}
@media (max-width: 480px) {
  .topnav .nav-about { display: none; }
  .topbar-inner { gap: 8px; }
  .brand { gap: 7px; min-width: 0; }
  .brand-mark { width: 26px; height: 26px; flex: none; }
  .brand-text { font-size: .94rem; overflow: hidden; text-overflow: ellipsis; }
  .topnav { flex: none; gap: 2px; }
  .topnav a { padding: 6px 8px; }
  .icon-btn { width: 34px; height: 34px; margin-left: 2px; }
}
.footer-links { display: flex; gap: 16px; margin-top: 10px; font-size: .9rem; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}
@media print {
  .topbar, .toc, .toc-chips, .toolbar, .pager, .footer, .to-top, .finder { display: none !important; }
  .remedy-layout { display: block; }
}