/* Layout idea: a calm, tidy reading room. White header, one friendly blue for actions, soft solid book covers as the only real colour on the page. Single light theme by choice. */
:root {
  --primary: #7b5cd6;     /* actions */
  --primary-deep: #5e43b5;
  --sun: #f6b93b;         /* small warm highlights */
  --leaf: #2f9e74;        /* good: available, active */
  --berry: #d9506b;       /* attention: overdue, inactive */
  --ink: #2e2546;
  --ink-soft: #6b6385;
  --paper: #f3eefc;
  --card: #ffffff;
  --line: #e6ddf5;
  --hero: #ffe9f1;
  --font-display: "Baloo 2", "Comic Sans MS", system-ui, sans-serif;
  --font-body: "Nunito", system-ui, -apple-system, "Segoe UI", sans-serif;
  color-scheme: light;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--paper); color: var(--ink); font-family: var(--font-body); font-size: 17px; line-height: 1.5; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.15; margin: 0; text-wrap: balance; }
h1 { font-size: 2rem; }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.15rem; }
.mark { background: none; padding: 0; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; transition: transform .15s ease, background-color .15s ease; }
:focus-visible { outline: 3px solid var(--sun); outline-offset: 2px; }


header.app { background: #fdfbff; color: var(--ink); padding: 12px 16px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; margin-right: auto; }
.brand svg { width: 34px; height: 34px; flex: none; }
.brand svg rect:last-child { fill: var(--primary); }
.brand h1 { font-size: 1.5rem; }
nav.tabs { display: flex; flex-wrap: wrap; gap: 4px; }
nav.tabs button { background: transparent; border: 0; color: var(--ink-soft); font-weight: 800; padding: 8px 14px; border-radius: 12px; }
nav.tabs button:hover { background: var(--paper); color: var(--ink); }
nav.tabs button[aria-current="page"] { background: #efe8fd; color: var(--primary-deep); }
.badge { display: inline-block; min-width: 22px; padding: 0 6px; border-radius: 999px; background: var(--sun); color: var(--ink); font-size: .8rem; margin-left: 4px; text-align: center; }
.who .btn { padding: 6px 14px; }
.who { font-weight: 700; display: flex; align-items: center; gap: 8px; color: var(--ink-soft); }
.avatar { width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; font-family: var(--font-display); font-weight: 700; color: #fff; background: var(--primary); }
.who button { background: transparent; color: var(--ink-soft); border: 1px solid var(--line); border-radius: 10px; padding: 5px 12px; font-weight: 700; }
.who button:hover { color: var(--ink); background: var(--paper); }

main { max-width: 1040px; margin: 0 auto; padding: 24px 16px 64px; display: grid; gap: 20px; }
.lead { color: var(--ink-soft); margin: 4px 0 0; }

.hero { border-radius: 20px; padding: 20px 24px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 16px; background: var(--hero); color: var(--ink); }
.hero h2 { font-size: 1.8rem; }
.hero p { margin: 4px 0 0; color: var(--ink-soft); font-weight: 600; }
.hero svg { width: 150px; height: auto; }
.hero svg > path[fill="#fff"]:not([stroke]) { fill: #f28bb3; }
.hero svg > circle { fill: var(--sun); opacity: .5; }
.hero.admin { background: #ece5fc; }
.hero, .login .sky { background-image: radial-gradient(#ffffff 1.5px, transparent 2px); background-size: 22px 22px; }

.banner { border-radius: 14px; padding: 14px 18px; font-weight: 700; display: flex; gap: 12px; align-items: center; }
.banner.warn { background: #fdecef; color: #8e2a40; }
.banner.info { background: #fff3d6; color: #6b4a00; }
.banner.ok { background: #e3f4ec; color: #1d6248; }

.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.search { flex: 1 1 240px; padding: 12px 16px; border-radius: 14px; border: 2px solid var(--line); background: var(--card); }
.search:focus { border-color: var(--primary); outline: none; }
.chip { border: 2px solid var(--line); background: var(--card); color: var(--ink); border-radius: 999px; padding: 5px 14px; font-weight: 700; }
.chip:hover { border-color: #c9d3e6; }
.chip[aria-pressed="true"] { background: var(--primary); color: #fff; border-color: var(--primary); }

.shelf { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 18px; }
.book { --c: var(--primary); background: color-mix(in srgb, var(--c) 14%, white); border: 1px solid color-mix(in srgb, var(--c) 28%, white); border-radius: 16px; padding: 10px 10px 14px; text-align: left; display: grid; gap: 6px; color: var(--ink); }
.book:hover { transform: translateY(-3px); box-shadow: 0 8px 18px -12px rgba(38,48,74,.35); }
.cover {
  aspect-ratio: 2 / 3; border-radius: 6px 12px 12px 6px; position: relative; overflow: hidden; display: flex; flex-direction: column; justify-content: flex-end; gap: 4px;
  padding: 12px 12px 12px 18px; color: #fff; font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; line-height: 1.1;
  background: linear-gradient(180deg, rgba(255,255,255,.1), rgba(0,0,0,.06)), var(--c);
  box-shadow: inset 7px 0 0 rgba(0,0,0,.12);
}
.cover .by { font-family: var(--font-body); font-size: .7em; font-weight: 600; opacity: .9; }
.cover img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.book .t { font-weight: 800; line-height: 1.2; }
.book .a { color: var(--ink-soft); font-size: .9rem; }
.pill { justify-self: start; display: inline-block; font-size: .8rem; font-weight: 800; padding: 2px 10px; border-radius: 999px; }
.pill.free { background: #e3f4ec; color: #1d6248; }
.pill.taken { background: #eef1f6; color: var(--ink-soft); }
.pill.late { background: #fdecef; color: #8e2a40; }
.pill.wait { background: #fff1d1; color: #7a5600; }

.card { background: var(--card); border-radius: 18px; padding: 20px; border: 1px solid var(--line); }
.detail { display: grid; grid-template-columns: minmax(160px, 260px) 1fr; gap: 24px; align-items: start; }
.detail .cover { font-size: 1.5rem; }
.detail .info { display: grid; gap: 12px; }
.big { background: var(--primary); color: #fff; border: 0; border-radius: 14px; padding: 13px 26px; font-weight: 800; font-size: 1.1rem; justify-self: start; box-shadow: 0 3px 0 var(--primary-deep); }
.big:hover { background: var(--primary-deep); }
.big:active { transform: translateY(2px); box-shadow: 0 1px 0 var(--primary-deep); }
.big[disabled] { background: #c7cedd; box-shadow: none; cursor: not-allowed; }
.link { background: none; border: 0; color: var(--primary-deep); font-weight: 800; padding: 0; justify-self: start; }
.btn { border: 1px solid var(--line); background: var(--card); color: var(--ink); border-radius: 10px; padding: 6px 12px; font-weight: 800; }
.btn:hover { background: var(--paper); }
.btn.go { background: var(--leaf); color: #fff; border-color: var(--leaf); }
.btn.no { color: var(--berry); }
.btn.main { background: var(--primary); color: #fff; border-color: var(--primary); }

.loan { display: grid; grid-template-columns: 64px 1fr auto; gap: 16px; align-items: center; }
.loan .cover { font-size: .55rem; padding: 6px 6px 6px 10px; }
.days { font-family: var(--font-display); font-size: 2rem; font-weight: 700; line-height: 1; text-align: center; font-variant-numeric: tabular-nums; color: var(--leaf); }
.days small { display: block; font-family: var(--font-body); font-size: .8rem; font-weight: 700; color: var(--ink-soft); }
.days.late { color: var(--berry); }

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.tile { background: #ece5fc; border-radius: 18px; padding: 18px; border: 1px solid #d9cdf6; text-align: left; display: grid; gap: 4px; color: var(--ink); }
.tile:hover { transform: translateY(-2px); }
.tile .n { font-family: var(--font-display); font-size: 2.4rem; font-weight: 700; line-height: 1; font-variant-numeric: tabular-nums; color: var(--primary); }
.tile .s { color: var(--ink-soft); }
.tile.req { background: #fff3d6; border-color: #f6dfa6; }
.tile.late { background: #fde8ec; border-color: #f6c6d0; }
.tile.end { background: #e2f4ec; border-color: #bfe5d3; }
.tile.req .n { color: #b97b05; }
.tile.late .n { color: var(--berry); }
.tile.end .n { color: var(--leaf); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font-size: .8rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .05em; }
td .acts { display: flex; flex-wrap: wrap; gap: 6px; }
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 8px; vertical-align: middle; }

form.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
label { display: grid; gap: 4px; font-weight: 700; font-size: .95rem; }
input[type="text"], input[type="date"], input[type="tel"], input[type="password"], input[type="number"], select, textarea { padding: 10px 12px; border: 2px solid var(--line); border-radius: 12px; background: #fff; color: var(--ink); width: 100%; }
input:focus, select:focus, textarea:focus { border-color: var(--primary); outline: none; }
textarea { min-height: 80px; resize: vertical; }
.full { grid-column: 1 / -1; }
.photo-pick { display: flex; gap: 14px; align-items: center; border: 2px dashed var(--line); border-radius: 14px; padding: 12px; }
.photo-pick .cover { width: 70px; font-size: .6rem; padding: 6px 6px 6px 10px; flex: none; }

.about { display: grid; grid-template-columns: 170px 1fr; gap: 28px; align-items: start; }
.about-pic svg { width: 100%; height: auto; }
.about-text { display: grid; gap: 10px; max-width: 62ch; }
.about-text p { margin: 0; }
.about-cards .card:nth-child(1) { background: #ece5fc; border-color: #d9cdf6; }
.about-cards .card:nth-child(2) { background: #fff3d6; border-color: #f6dfa6; }
.about-cards .card:nth-child(3) { background: #e2f4ec; border-color: #bfe5d3; }
.steps { margin: 8px 0 0; padding-left: 22px; display: grid; gap: 6px; }
@media (max-width: 600px) { .about { grid-template-columns: 1fr; } .about-pic { max-width: 130px; } }
.login { max-width: 420px; margin: 32px auto; text-align: center; display: grid; gap: 14px; overflow: hidden; padding-top: 0; }
.login .sky { margin: 0 -20px; padding: 20px 0 6px; background: var(--hero); }
.login .sky svg { width: 180px; height: auto; }
.login .sky svg > path[fill="#fff"]:not([stroke]) { fill: #f28bb3; }
.login form { display: grid; gap: 14px; text-align: left; }
.login .hint { font-size: .9rem; color: var(--ink-soft); margin: 0; }

.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--ink); color: #fff; padding: 12px 20px; border-radius: 14px; font-weight: 700; max-width: calc(100% - 32px); box-shadow: 0 8px 24px rgba(38,48,74,.25); }
.empty { color: var(--ink-soft); font-weight: 700; padding: 8px 0; }
.row-between { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; }

@media (max-width: 600px) {
  h1 { font-size: 1.6rem; }
  .hero { grid-template-columns: 1fr; }
  .hero svg { width: 120px; justify-self: center; order: -1; }
  .detail { grid-template-columns: 1fr; }
  .detail .cover { max-width: 200px; }
  .loan { grid-template-columns: 52px 1fr; }
  .loan .days { grid-column: 2; text-align: left; }
  .shelf { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } .book:hover, .tile:hover { transform: none; } }
.loading { display: grid; place-items: center; align-content: center; gap: 14px; min-height: 70vh; padding: 24px 16px; text-align: center; }
.loading p, .wait p { margin: 0; font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; color: var(--ink); }
.loading small, .wait small { color: var(--ink-soft); font-weight: 600; min-height: 1.2em; }
.loading .big { justify-self: center; }
.hop { display: flex; gap: 7px; align-items: flex-end; height: 70px; }
.hop span { width: 18px; border-radius: 5px; box-shadow: inset 4px 0 0 rgba(0,0,0,.1); animation: hop 1.2s ease-in-out infinite; }
.hop span:nth-child(1) { height: 48px; background: var(--primary); }
.hop span:nth-child(2) { height: 60px; background: #f28bb3; animation-delay: .15s; }
.hop span:nth-child(3) { height: 52px; background: var(--sun); animation-delay: .3s; }
@keyframes hop { 0%, 60%, 100% { transform: translateY(0); } 30% { transform: translateY(-14px); } }
.wait { position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; padding: 16px; background: rgba(243, 238, 252, .72); }
.wait[hidden] { display: none; }
.wait .box { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 24px 32px; display: grid; justify-items: center; gap: 10px; text-align: center; max-width: 340px; box-shadow: 0 12px 32px -16px rgba(46, 37, 70, .35); }
.nap { font-family: var(--font-display); font-size: 2.6rem; font-weight: 700; color: var(--primary); line-height: 1; }
.nap span { font-size: .75em; margin-left: 2px; opacity: .7; }
.nap span + span { font-size: .55em; opacity: .5; }
@media (prefers-reduced-motion: reduce) { .hop span { animation: none; } }
.inline-form { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.inline-form input { max-width: 200px; }
.btn[disabled], .big[disabled] { opacity: .7; }
.toast.err { background: var(--berry); }
.busy { pointer-events: none; }
.card-pic { max-width: 560px; }
.card-pic img { display: block; width: 100%; height: auto; border-radius: 12px; box-shadow: 0 10px 28px -16px rgba(46, 37, 70, .45); }
#printArea { display: none; }
@media print {
  @page { size: A4; margin: 15mm; }
  body.print-card { background: #fff; }
  body.print-card #app, body.print-card #wait { display: none; }
  body.print-card #printArea { display: block; }
  #printArea img { width: 95mm; height: auto; }
}