/* LibraryKu V3: perpustakaan digital kampus (Beranda, Katalog, Dashboard, Tentang).
   Font sistem saja (tanpa unduhan), satu aksen teal, kontras sudah dihitung (min. 4,5:1 untuk teks). */

:root {
  color-scheme: light;

  --paper: #f3f6f6;
  --surface: #ffffff;
  --sunken: #e9eff0;
  --ink: #11242b;
  --ink-2: #3a4e56;
  --ink-3: #54666e;
  --placeholder: #5c6f77;
  --line: #d3dcde;
  --line-strong: #78898f;

  --accent: #0b6469;
  --accent-hover: #084d51;
  --accent-tint: #e0f0f0;
  --accent-tint-2: #c5e2e2;
  --on-accent: #ffffff;

  --danger: #a3242b;
  --danger-hover: #7e1a20;
  --danger-tint: #fbecec;
  --danger-line: #e4b3b6;
  --warn: #7a4a00;
  --warn-tint: #fbefd8;
  --ok: #17734f;

  /* Warna punggung buku per kategori */
  --tone-0: #0b6469;
  --tone-1: #11242b;
  --tone-2: #8a5a14;
  --tone-3: #3a4e56;
  --tone-4: #6b3a5b;

  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "DejaVu Sans", "Liberation Sans", Arial, sans-serif;
  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, "Noto Serif", "DejaVu Serif", "Liberation Serif", serif;
  --font-mono: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, "DejaVu Sans Mono", "Liberation Mono", monospace;

  --radius: 12px;
  --radius-sm: 8px;
  --gutter: clamp(16px, 4vw, 40px);
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scrollbar-color: var(--line-strong) var(--paper); }

body {
  margin: 0; min-height: 100vh; display: flex; flex-direction: column;
  background: var(--paper); color: var(--ink); font: 400 1rem/1.5 var(--font-sans);
}
main { flex: 1 0 auto; }
p, li, dd { text-wrap: pretty; }
main:focus { outline: none; }
h1[tabindex="-1"]:focus { outline: none; }

::selection { background: var(--accent-tint-2); color: var(--ink); }
input, select { caret-color: var(--accent); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
[hidden] { display: none !important; }
button { font: inherit; }
a.btn { text-decoration: none; }

code {
  padding: 1px 5px; border-radius: 4px; background: var(--sunken);
  font: 0.875em/1.4 var(--font-mono); overflow-wrap: anywhere;
}

.wrap { width: min(1200px, calc(100% - 2 * var(--gutter))); margin-inline: auto; }

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon { width: 20px; height: 20px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }

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

.skip-link {
  position: absolute; left: 16px; top: -64px; z-index: 60;
  padding: 10px 14px; border-radius: var(--radius-sm);
  background: var(--ink); color: #fff; font-weight: 600; text-decoration: none;
}
.skip-link:focus { top: 12px; }

.noscript { margin: 0; padding: 16px var(--gutter); color: var(--danger); font-weight: 500; }

/* ---------- Header + navigasi ---------- */
.appbar { position: sticky; top: 0; z-index: 20; background: var(--surface); border-bottom: 1px solid var(--line); }
.appbar-inner { display: flex; align-items: center; gap: 8px 28px; min-height: 64px; }

.brand { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; color: var(--ink); text-decoration: none; border-radius: var(--radius-sm); }
.brand-mark { width: 28px; height: 28px; }
.brand-mark rect { fill: var(--ink); }
.brand-mark .mark-accent { fill: var(--accent); }
.brand-name { font: 600 1.25rem/1 var(--font-serif); letter-spacing: -0.01em; }

.nav { display: flex; gap: 4px; margin-right: auto; }
.nav a {
  position: relative; display: inline-flex; align-items: center; min-height: 44px; padding: 0 14px;
  border-radius: var(--radius-sm); color: var(--ink-2); font-weight: 500; text-decoration: none;
  transition: background-color 0.15s, color 0.15s;
}
.nav a:hover { background: var(--sunken); color: var(--ink); }
.nav a[aria-current] { color: var(--accent-hover); font-weight: 600; }
.nav a[aria-current]::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 6px; height: 2px; border-radius: 2px; background: var(--accent);
}

.status {
  display: inline-flex; align-items: center; gap: 8px; min-height: 36px; padding: 6px 14px;
  border: 1px solid var(--line); border-radius: 999px; background: var(--surface);
  color: var(--ink-2); font-size: 0.875rem; white-space: nowrap;
}
.status-dot { width: 9px; height: 9px; flex: none; border-radius: 50%; background: var(--ink-3); }
.status[data-state="ready"] .status-dot { background: var(--ok); }
.status[data-state="error"] { border-color: var(--danger-line); background: var(--danger-tint); color: var(--danger); }
.status[data-state="error"] .status-dot { background: var(--danger); }

/* ---------- Pola umum halaman ---------- */
.eyebrow { margin: 0 0 12px; color: var(--accent-hover); font-size: 0.875rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; }

.page { padding-block: 40px 64px; }
.page-head { margin-bottom: 24px; }
.page-head h1 { margin: 0 0 10px; font: 600 clamp(1.875rem, 4vw, 2.5rem)/1.15 var(--font-serif); letter-spacing: -0.015em; text-wrap: balance; }
.page-lede { max-width: 62ch; margin: 0; color: var(--ink-2); font-size: 1.0625rem; }
.page-head-row { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 20px 40px; }

.block { padding-block: 40px 8px; }
.block h2, .strip-title { margin: 0 0 16px; font: 600 1.625rem/1.2 var(--font-serif); letter-spacing: -0.01em; }
.block-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 24px; margin-bottom: 16px; }
.block-head h2 { margin: 0; }
.link-arrow { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; color: var(--accent-hover); font-weight: 600; text-underline-offset: 3px; }

/* ---------- Beranda: hero ---------- */
.hero { background: var(--surface); border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: 40px 72px; align-items: center; padding-block: 64px 56px; }
.hero h1 {
  max-width: 17ch; margin: 0 0 18px;
  font: 600 clamp(2.25rem, 5vw, 3.5rem)/1.08 var(--font-serif); letter-spacing: -0.02em; text-wrap: balance;
}
.lede { max-width: 54ch; margin: 0 0 28px; color: var(--ink-2); font-size: 1.125rem; line-height: 1.55; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn-lg { min-height: 48px; padding: 0 22px; font-size: 1rem; }

/* Rak buku: punggung buku diambil dari data database */
.shelf-wrap { margin: 0; }
.shelf {
  display: flex; align-items: flex-end; gap: 6px; margin: 0; padding: 0 20px; list-style: none;
  min-height: 240px; border-bottom: 10px solid var(--ink); border-radius: 2px;
}
.spine {
  position: relative; flex: 0 0 var(--w, 52px); width: var(--w, 52px); height: var(--h, 190px);
  display: flex; align-items: flex-start; justify-content: center; padding: 14px 4px 10px;
  border-radius: 3px 3px 1px 1px; background: var(--tone-0); color: #fff; overflow: hidden;
}
.spine[data-tone="1"] { background: var(--tone-1); }
.spine[data-tone="2"] { background: var(--tone-2); }
.spine[data-tone="3"] { background: var(--tone-3); }
.spine[data-tone="4"] { background: var(--tone-4); }
.spine::before, .spine::after { content: ""; position: absolute; left: 0; right: 0; height: 3px; background: rgb(255 255 255 / 0.55); }
.spine::before { top: 8px; }
.spine::after { bottom: 8px; }
.spine-title {
  writing-mode: vertical-rl; max-height: calc(var(--h, 190px) - 40px); margin-top: 8px;
  font: 600 0.9375rem/1.2 var(--font-serif); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.spine-empty { flex-basis: 40px; width: 40px; padding: 0; border: 2px dashed var(--line-strong); background: transparent; }
.spine-empty::before, .spine-empty::after { display: none; }
.shelf-wrap figcaption { margin-top: 14px; color: var(--ink-3); font-size: 0.9375rem; }

/* ---------- Beranda: sekilas koleksi ---------- */
.strip { padding-block: 36px 8px; }
.ledger-strip { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 0; border-block: 1px solid var(--line-strong); }
.ledger-strip > div { display: flex; flex-direction: column; gap: 2px; padding: 18px 20px; }
.ledger-strip > div + div { border-left: 1px solid var(--line); }
.ledger-strip dd { margin: 0; font: 600 2.25rem/1.1 var(--font-serif); font-variant-numeric: tabular-nums; }
.ledger-strip dt { color: var(--ink-2); font-size: 0.9375rem; }
.strip-note { margin: 10px 0 0; color: var(--ink-3); font-size: 0.875rem; }
.ledger-compact { min-width: min(100%, 420px); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.ledger-compact dd { font-size: 1.625rem; }
.ledger-compact > div { padding: 12px 16px; }

/* ---------- Kartu buku ---------- */
.cards { display: grid; gap: 16px; margin: 0; padding: 0; list-style: none; }
.cards-recent { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.cards-catalog { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.cards-note { grid-column: 1 / -1; }

.card {
  position: relative; display: flex; flex-direction: column; gap: 6px; min-width: 0;
  padding: 20px 20px 16px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface);
}
/* Pembatas buku di sudut kanan atas, warnanya mengikuti kategori */
.card::before {
  content: ""; position: absolute; top: -1px; right: 18px; width: 14px; height: 28px; background: var(--tone-0);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 78%, 0 100%);
}
.card[data-tone="1"]::before { background: var(--tone-1); }
.card[data-tone="2"]::before { background: var(--tone-2); }
.card[data-tone="3"]::before { background: var(--tone-3); }
.card[data-tone="4"]::before { background: var(--tone-4); }
.card .tag { align-self: flex-start; margin-right: 32px; }
.card-title { margin: 8px 0 0; font: 600 1.1875rem/1.3 var(--font-serif); overflow-wrap: anywhere; }
.card-author { margin: 0; color: var(--ink-2); overflow-wrap: anywhere; }
.card-meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 12px; margin: auto 0 0; padding-top: 14px; color: var(--ink-3); font-size: 0.9375rem; }
.stock-ok { color: var(--ink-2); font-weight: 600; font-variant-numeric: tabular-nums; }
.card-skeleton { min-height: 150px; }

.tag {
  display: inline-block; padding: 3px 10px; border-radius: 6px;
  background: var(--accent-tint); color: var(--accent-hover); font-size: 0.875rem; font-weight: 500; overflow-wrap: anywhere;
}
.stock-out { display: inline-block; padding: 2px 8px; border-radius: 6px; background: var(--warn-tint); color: var(--warn); font-weight: 600; }

/* ---------- Beranda: informasi ---------- */
.info-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px 40px; margin-bottom: 56px; }
.info-grid h3 { margin: 0 0 6px; font: 600 1.1875rem/1.3 var(--font-serif); }
.info-grid p { margin: 0; max-width: 40ch; color: var(--ink-2); }

/* ---------- Toolbar, input, tombol ---------- */
.toolbar { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 14px; }
.panel .toolbar { margin: 0; padding: 16px; }
.search { position: relative; flex: 1 1 240px; min-width: 0; }
.search-icon { position: absolute; left: 12px; top: 50%; margin-top: -10px; color: var(--ink-3); pointer-events: none; }
.filter { flex: 0 1 220px; min-width: 160px; }

input, select {
  width: 100%; min-height: 44px; padding: 0 12px;
  border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  background: var(--surface); color: var(--ink); font: inherit;
  transition: border-color 0.15s, background-color 0.15s;
}
input::placeholder { color: var(--placeholder); opacity: 1; }
.search input { padding-left: 42px; }
select {
  appearance: none; padding-right: 40px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2354666e' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center; background-size: 18px;
}
input:hover, select:hover { border-color: var(--ink-3); }
input:focus-visible, select:focus-visible { border-color: var(--accent); }
input[aria-invalid="true"], select[aria-invalid="true"] { border-color: var(--danger); background-color: #fffafa; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 16px; border: 1px solid transparent; border-radius: var(--radius-sm);
  font-weight: 600; line-height: 1.2; cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:not(:disabled):hover { background: var(--accent-hover); }
.btn-secondary { background: var(--surface); color: var(--ink); border-color: var(--line-strong); }
.btn-secondary:not(:disabled):hover { background: var(--sunken); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:not(:disabled):hover { background: var(--danger-hover); }
.btn-danger-outline { background: var(--surface); color: var(--danger); border-color: var(--danger-line); }
.btn-danger-outline:not(:disabled):hover { background: var(--danger-tint); border-color: var(--danger); }
.btn-sm { min-height: 36px; padding: 0 12px; font-size: 0.9375rem; }

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; flex: none;
  border: 1px solid transparent; border-radius: var(--radius-sm); background: transparent; color: var(--ink-2); cursor: pointer;
}
.icon-btn:hover { background: var(--sunken); }

.result-count { margin: 0 0 16px; color: var(--ink-3); font-size: 0.9375rem; }

/* ---------- Dashboard ---------- */
.notice {
  display: flex; align-items: flex-start; gap: 10px; margin: 0 0 16px; padding: 12px 16px;
  border: 1px solid #e6cf9f; border-radius: var(--radius-sm); background: var(--warn-tint); color: var(--warn);
  font-size: 0.9375rem;
}
.notice .icon { margin-top: 2px; }
.panel { overflow: hidden; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }

.list-meta {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 16px;
  padding: 10px 16px; border-top: 1px solid var(--line); color: var(--ink-3); font-size: 0.875rem;
}
.list-meta p { margin: 0; }

.books { width: 100%; border-collapse: collapse; }
.books th {
  padding: 10px 16px; border-top: 1px solid var(--line); background: var(--sunken);
  color: var(--ink-3); font-size: 0.875rem; font-weight: 600; text-align: left;
}
.books td { padding: 14px 16px; border-top: 1px solid var(--line); vertical-align: middle; transition: background-color 0.6s; }
.books tbody tr:hover td { background: #f6fafa; }
.books tbody tr.is-changed td { background: var(--accent-tint); }
.books tbody tr.state-row:hover td, .books tbody tr.skeleton-row:hover td { background: transparent; }

.col-category { width: 140px; }
.col-year { width: 76px; font-variant-numeric: tabular-nums; }
.col-stock { width: 104px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.col-actions { width: 196px; text-align: right; white-space: nowrap; }

.book-title { margin: 0; font: 600 1.0625rem/1.3 var(--font-serif); color: var(--ink); overflow-wrap: anywhere; }
.book-author { display: block; margin-top: 2px; color: var(--ink-2); font-size: 0.9375rem; overflow-wrap: anywhere; }
.row-actions { display: flex; justify-content: flex-end; gap: 8px; }

/* Keadaan: memuat, kosong, tidak cocok, gagal */
.skeleton-row td { padding: 18px 16px; }
.sk { display: block; height: 14px; border-radius: 6px; background: linear-gradient(90deg, var(--sunken) 25%, #f4f8f8 50%, var(--sunken) 75%); background-size: 200% 100%; animation: shimmer 1.4s linear infinite; }
.sk + .sk { margin-top: 10px; }
.sk-a { width: 52%; height: 18px; }
.sk-b { width: 30%; }
.sk-tag { width: 28%; height: 20px; }
@keyframes shimmer { to { background-position: -200% 0; } }

.state { display: flex; flex-direction: column; align-items: center; padding: 48px 24px; text-align: center; }
.cards-note .state { border: 1px dashed var(--line-strong); border-radius: var(--radius); background: var(--surface); }
.state-icon { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%; background: var(--sunken); color: var(--ink-2); }
.state[data-tone="error"] .state-icon { background: var(--danger-tint); color: var(--danger); }
.state-title { margin: 16px 0 4px; font: 600 1.1875rem/1.3 var(--font-serif); }
.state-text { max-width: 46ch; margin: 0; color: var(--ink-2); }
.state-detail { max-width: 46ch; margin: 8px 0 0; color: var(--ink-3); font-size: 0.875rem; overflow-wrap: anywhere; }
.state .btn { margin-top: 20px; }

/* ---------- Dialog formulir & hapus ---------- */
.dialog {
  width: min(440px, calc(100vw - 32px)); padding: 0; border: 0; border-radius: 16px;
  background: var(--surface); color: var(--ink); box-shadow: 0 24px 64px rgb(17 36 43 / 0.28);
}
.dialog-form { width: min(520px, calc(100vw - 32px)); max-height: calc(100dvh - 32px); }
.dialog::backdrop { background: rgb(17 36 43 / 0.55); }
.dialog[open] { animation: dialog-in 0.16s ease-out; }
@keyframes dialog-in { from { opacity: 0; } }
.dialog-body { padding: 24px; }
.dialog h2 { margin: 0 0 8px; font: 600 1.25rem/1.3 var(--font-serif); }
.dialog p { margin: 0; color: var(--ink-2); }
.dialog strong { color: var(--ink); overflow-wrap: anywhere; }
.dialog .dialog-error { margin-top: 12px; color: var(--danger); font-weight: 500; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 24px; }

.editor-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.editor-head h2 { margin: 0 0 4px; font-size: 1.375rem; }
.editor-head p { font-size: 0.9375rem; }
.editor-head .icon-btn { margin: -8px -8px 0 0; }
.dialog-form[data-mode="edit"] h2::after {
  content: "Mode edit"; margin-left: 10px; padding: 1px 8px; border: 1px solid var(--accent); border-radius: 6px;
  color: var(--accent-hover); font: 600 0.8125rem/1.5 var(--font-sans); vertical-align: middle;
}

.field { margin-bottom: 14px; }
.field label { display: block; margin-bottom: 6px; font-weight: 600; font-size: 0.9375rem; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field-hint { margin: 6px 0 0; color: var(--ink-3); font-size: 0.875rem; }
.field-error { margin: 6px 0 0; color: var(--danger); font-size: 0.9375rem; font-weight: 500; }
.form-error { margin: 0 0 4px; padding: 10px 12px; border: 1px solid var(--danger-line); border-radius: var(--radius-sm); background: var(--danger-tint); color: var(--danger) !important; font-weight: 500; }
.form-actions { display: flex; justify-content: flex-end; gap: 12px; margin-top: 20px; }

/* ---------- Tentang ---------- */
.about-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 40px 64px; align-items: start; }
.about-copy h2, .compose-role h2, .api h2 { margin: 28px 0 8px; font: 600 1.375rem/1.25 var(--font-serif); }
.about-copy h2:first-child { margin-top: 0; }
.about-copy p, .compose-role p { max-width: 58ch; margin: 0 0 12px; color: var(--ink-2); }
.plain-list { margin: 0; padding-left: 20px; color: var(--ink-2); }
.plain-list li { margin-bottom: 6px; }
.plain-list strong { color: var(--ink); }
.tech { margin: 0; border-top: 1px solid var(--line); }
.tech > div { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.tech dt { color: var(--ink-3); font-weight: 600; }
.tech dd { margin: 0; color: var(--ink); }
.compose-role { margin-top: 32px; }
.compose-role h2 { margin-top: 0; }

.flow { margin: 0; }
.flow-list { margin: 0; padding: 0; list-style: none; }
.flow-item { position: relative; padding: 14px 16px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); }
.flow-item + .flow-item { margin-top: 22px; }
.flow-item + .flow-item::before { content: ""; position: absolute; left: 24px; top: -22px; width: 1px; height: 22px; background: var(--line-strong); }
.flow-item + .flow-item::after {
  content: ""; position: absolute; left: 20px; top: -9px; width: 9px; height: 9px;
  border-right: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); transform: rotate(45deg);
}
.flow-item strong { display: block; font: 600 1.0625rem/1.3 var(--font-serif); }
.flow-item strong code { margin-left: 6px; font-weight: 500; }
.flow-item span { color: var(--ink-2); font-size: 0.9375rem; }
.flow figcaption { margin-top: 14px; color: var(--ink-3); font-size: 0.875rem; }

.method {
  padding: 3px 9px; border: 1px solid var(--line-strong); border-radius: 6px;
  background: var(--paper); color: var(--ink); font-size: 0.8125rem; white-space: nowrap;
}
.api { margin-top: 48px; padding-top: 12px; border-top: 1px solid var(--line); }
.api h2 { margin-top: 16px; }
.api > p { margin: 0 0 12px; color: var(--ink-2); }
.endpoint-list { margin: 0; padding: 0; list-style: none; }
.endpoint-list li { display: grid; grid-template-columns: 84px minmax(0, 240px) minmax(0, 1fr); gap: 4px 16px; align-items: baseline; padding: 10px 0; border-top: 1px solid var(--line); }
.endpoint-list .method, .endpoint-list li > code { justify-self: start; }
.endpoint-list a { padding-block: 6px; color: var(--accent-hover); font: 0.9375rem/1.4 var(--font-mono); text-underline-offset: 3px; overflow-wrap: anywhere; }
.endpoint-list span { color: var(--ink-2); }

/* ---------- Toast & footer ---------- */
.toast {
  position: fixed; right: 24px; bottom: 24px; z-index: 40; max-width: min(380px, calc(100vw - 32px));
  padding: 12px 16px; border-radius: 10px; background: var(--ink); color: #fff;
  box-shadow: 0 10px 28px rgb(17 36 43 / 0.28);
  opacity: 0; transform: translateY(8px); pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
}
.toast.is-visible { opacity: 1; transform: none; }
.toast.is-error { background: var(--danger); }

.footer { flex: none; border-top: 1px solid var(--line); background: var(--surface); color: var(--ink-3); font-size: 0.9375rem; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 32px; padding-block: 24px 28px; }
.footer-brand { display: flex; flex-direction: column; gap: 2px; }
.footer-name { color: var(--ink); font: 600 1.125rem/1.2 var(--font-serif); }
.footer-nav { display: flex; flex-wrap: wrap; gap: 4px 8px; }
.footer-nav a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 10px; color: var(--ink-2); text-underline-offset: 3px; }

/* ---------- Responsif ---------- */
@media (max-width: 980px) {
  .hero-grid, .about-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-grid { padding-block: 44px 40px; }
  .hero h1 { max-width: 22ch; }
  .info-grid { grid-template-columns: minmax(0, 1fr); margin-bottom: 40px; }
  .info-grid p { max-width: 60ch; }
  #refreshBtn { flex: 0 0 44px; width: 44px; padding: 0; }
  #refreshLabel { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
}

/* Tablet portrait & HP: tabel menjadi daftar baris; Edit dan Hapus selalu terlihat. */
@media (max-width: 860px) {
  .books, .books tbody { display: block; }
  /* Sembunyi secara visual tetapi tetap terbaca pembaca layar. overflow wajib hidden: clip-path saja
     membiarkan teks header memperlebar area gulir (halaman melebar di HP). */
  .books thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .books tbody tr { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; padding: 16px; border-top: 1px solid var(--line); }
  .books tbody tr:hover { background: #f6fafa; }
  .books td { display: block; width: auto; padding: 0; border: 0; }
  .books tbody tr:hover td, .books tbody tr.is-changed td { background: transparent; }
  .books tbody tr.is-changed { background: var(--accent-tint); }
  .books td.col-title { flex: 1 0 100%; }
  .books td.col-actions { flex: 0 0 auto; margin-left: auto; }
  .books td[data-label]:not(.col-category)::before { content: attr(data-label) " "; color: var(--ink-3); }

  .books tbody tr.state-row, .books tbody tr.skeleton-row { display: block; padding: 0; }
  .books tbody tr.state-row:hover, .books tbody tr.skeleton-row:hover { background: transparent; }
  .books tbody tr.skeleton-row td { padding: 16px; }

  .endpoint-list li { grid-template-columns: 84px minmax(0, 1fr); }
  .endpoint-list li span { grid-column: 2; }
  .endpoint-list a { display: inline-flex; align-items: center; min-height: 44px; padding-block: 0; }
}

@media (max-width: 720px) {
  /* Header dua baris: merek + status, lalu navigasi selebar layar. */
  .appbar { position: static; }
  .appbar-inner { flex-wrap: wrap; min-height: 0; padding-block: 8px 0; }
  .status { margin-left: auto; white-space: normal; line-height: 1.25; }
  .nav { order: 3; flex: 1 0 100%; margin: 0 -8px; }
  .nav a { flex: 1 1 0; justify-content: center; padding: 0 6px; }

  .hero-grid { gap: 32px; padding-block: 32px; }
  .lede { font-size: 1.0625rem; margin-bottom: 24px; }
  .page { padding-block: 28px 48px; }
  .block { padding-block: 32px 4px; }
  .block h2, .strip-title { font-size: 1.4375rem; }
  .shelf { min-height: 200px; padding: 0 12px; gap: 4px; }
  .spine { flex-basis: calc(var(--w, 52px) - 10px); width: calc(var(--w, 52px) - 10px); height: calc(var(--h, 190px) - 30px); }
  .spine-title { max-height: calc(var(--h, 190px) - 70px); font-size: 0.875rem; }
  .spine-empty { flex-basis: 28px; width: 28px; }
  .ledger-strip dd { font-size: 1.75rem; }
  .ledger-strip > div { padding: 14px 12px; }
  .toolbar > .btn { flex: 1 1 auto; white-space: nowrap; }
  .tech > div { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .toast { left: 16px; right: 16px; bottom: 16px; max-width: none; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 560px) {
  .filter { flex: 1 1 100%; }
  .hero-actions .btn { flex: 1 1 auto; }
  .books td.col-actions { flex: 1 0 100%; margin-left: 0; }
  .row-actions { display: grid; grid-template-columns: 1fr 1fr; margin-top: 4px; }
  .row-actions .btn-sm { min-height: 44px; }
  .field-row { grid-template-columns: minmax(0, 1fr); gap: 0; }
}

@media (max-width: 420px) {
  .brand-name { font-size: 1.125rem; }
  .dialog-body { padding: 20px 16px; }
  .dialog-actions { flex-direction: column-reverse; }
  .dialog-actions .btn { width: 100%; }
  .form-actions { flex-direction: column-reverse; }
  .form-actions .btn { width: 100%; }
  .ledger-compact dd { font-size: 1.375rem; }
}

@media (pointer: coarse) {
  .btn-sm { min-height: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  .sk { animation: none; background: var(--sunken); }
  .dialog[open] { animation: none; }
  .toast { transform: none; }
}

/* ---------- LibraryKu Unified: pilihan database ---------- */
body { --mode-accent: var(--accent); --mode-tint: var(--accent-tint); }
body[data-mode="nosql"] { --mode-accent: #00684a; --mode-tint: #def2ea; }

.mode-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 20px; margin: 0 0 14px; }
.mode-switch { display: inline-flex; margin: 0; padding: 4px; border: 1px solid var(--line-strong); border-radius: 12px; background: var(--surface); }
.mode-switch legend { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.mode-option { position: relative; display: block; }
.mode-option input { position: absolute; inset: 0; width: 100%; height: 100%; min-height: 0; margin: 0; opacity: 0; cursor: pointer; }
.mode-option span { display: flex; flex-direction: column; align-items: flex-start; gap: 0; min-width: 132px; min-height: 48px; padding: 6px 16px; border-radius: 8px; color: var(--ink-2); line-height: 1.25; }
.mode-option small { font-size: 0.8125rem; color: inherit; }
.mode-option strong { font-size: 1rem; }
.mode-option input:checked + span { background: var(--mode-accent); color: #fff; }
.mode-option input:not(:checked):hover + span { background: var(--sunken); }
.mode-option input:focus-visible + span { outline: 3px solid var(--ink); outline-offset: 2px; }
.mode-source { margin: 0; color: var(--ink-2); font-size: 0.9375rem; }
.mode-banner {
  margin: 0 0 16px; padding: 10px 14px; border: 1px solid var(--mode-accent); border-radius: var(--radius-sm);
  background: var(--mode-tint); color: var(--ink); font-size: 0.9375rem;
}
.mode-banner strong { color: var(--ink); }
.hero-note { max-width: 54ch; margin: 18px 0 0; color: var(--ink-2); font-size: 0.9375rem; }
.hero-note a, .strip-note a { color: var(--accent-hover); text-underline-offset: 3px; }
.info-grid { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
body[data-mode="nosql"] .btn-primary { background: var(--mode-accent); }
body[data-mode="nosql"] .btn-primary:not(:disabled):hover { background: #004d37; }

/* ---------- Perbandingan ---------- */
.block-tight { margin: 0 0 40px; }
.block-tight h2 { margin: 0 0 12px; font: 600 1.5rem/1.2 var(--font-serif); letter-spacing: -0.01em; }
.block-tight .block-head h2 { margin: 0; }
.cmp-live { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; align-items: start; }
.cmp-card { min-width: 0; padding: 18px 20px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.cmp-card h3 { margin: 0 0 10px; font: 600 1.1875rem/1.3 var(--font-serif); }
.kv { margin: 0 0 12px; }
.kv > div { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 8px; padding: 6px 0; border-top: 1px solid var(--line); }
.kv dt { color: var(--ink-3); }
.kv dd { margin: 0; overflow-wrap: anywhere; }
.cmp-label { margin: 0 0 6px; color: var(--ink-2); font-size: 0.9375rem; font-weight: 600; }
.code {
  margin: 0; padding: 12px 14px; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--paper); color: var(--ink); font: 0.8125rem/1.5 var(--font-mono); white-space: pre;
}
.note-small { margin: 10px 0 0; color: var(--ink-3); font-size: 0.9375rem; max-width: 72ch; }
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.cmp-table { width: 100%; min-width: 560px; border-collapse: collapse; }
.cmp-table th, .cmp-table td { padding: 10px 14px; border-top: 1px solid var(--line); text-align: left; vertical-align: top; }
.cmp-table thead th { border-top: 0; background: var(--sunken); color: var(--ink-3); font-size: 0.875rem; }
.cmp-table tbody th { width: 150px; color: var(--ink); font-weight: 600; }
.cmp-table td code { white-space: normal; }

@media (max-width: 720px) {
  .cmp-live { grid-template-columns: minmax(0, 1fr); }
  .kv > div { grid-template-columns: 100px minmax(0, 1fr); }
  .mode-option span { min-width: 120px; }
  .nav a { padding: 0 3px; font-size: 0.9375rem; }
  .nav { gap: 0; }
}