/* Hallmark · pre-emit critique: P4 H4 E4 S4 R4 V4 */
/* Hallmark · genre: playful · macrostructure: Catalogue · F6 product-grid knobs: ratio=3/4, density=4-up, micro-action=none
 * theme: custom · vibe: "pastel pink, lavender, mint, cotton-soft" · paper: oklch(97% 0.012 340) · accent: oklch(70% 0.13 355)
 * display: Baloo 2 · body: Quicksand · axes: light / rounded-sans / chromatic-other (candy-pink ~355°)
 * nav: N13-adapted (inline live-filter search pill — user-specified layout) · footer: Ft8 marquee
 * enrichment: Tier-A CSS pastel covers + emoji (user-approved editable content placeholders)
 * contrast: pass (40–41) · slop: pass (42–45) · honest: pass (46) · chrome: pass (47) · tokens: pass (48)
 * responsive: pass (49) · icons: pass (30, custom SVG set) · mobile: pass (34, 49, 50–57)
 * studied: no · context: user-provided
 */

/* ── 기본 ─────────────────────────────────────────── */

* { box-sizing: border-box; }

html { overflow-x: clip; }

body {
  overflow-x: clip;
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 500;
  line-height: 1.55;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: clip;
  clip-path: inset(50%);
  white-space: nowrap;
}

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

/* ── 헤더: 왼쪽 로고 · 오른쪽 서치바 ───────────────── */

.top {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: var(--color-paper);
  border-bottom: var(--rule-hair) solid var(--color-rule);
}

.top__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
  max-width: 68rem;
  margin-inline: auto;
  padding: var(--space-md) clamp(1rem, 4vw, 2.5rem) var(--space-sm);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  text-decoration: none;
  color: var(--color-ink);
}

.brand__paw {
  width: 1.75rem;
  height: 1.75rem;
  color: var(--color-accent);
  transform: rotate(-10deg);
}

.brand__name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 800;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.search {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex: 1 1 14rem;
  max-width: 22rem;
  min-width: 0;
  padding: 0 var(--space-md);
  background: var(--color-paper-2);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-pill);
  transition: border-color var(--dur-short) var(--ease-out);
}

.search:hover { border-color: var(--color-accent); }

/* 포커스 링은 즉시 나타나요 (outline은 transition에 없음) */
.search:focus-within {
  border-color: var(--color-accent);
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.search__icon {
  width: 1rem;
  height: 1rem;
  flex: none;
  color: var(--color-muted);
}

.search__input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: none;
  padding: var(--space-sm) 0;
  font: inherit;
  color: var(--color-ink);
}

.search__input:focus-visible { outline: none; } /* 포커스 표시는 .search 테두리가 대신함 */

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

/* ── 메뉴: 카테고리 칩 ─────────────────────────────── */

.cats {
  max-width: 68rem;
  margin-inline: auto;
  padding: 0 clamp(1rem, 4vw, 2.5rem) var(--space-md);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.chip {
  min-height: 2.25rem;
  padding: var(--space-2xs) var(--space-md);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-pill);
  background: var(--color-paper);
  color: var(--color-ink-2);
  font: inherit;
  font-weight: 700;
  font-size: var(--text-sm);
  white-space: nowrap;
  cursor: pointer;
  transition: border-color var(--dur-short) var(--ease-out),
              background-color var(--dur-short) var(--ease-out),
              transform var(--dur-micro) var(--ease-out);
}

.chip:hover { border-color: var(--color-accent); }
.chip:active { transform: translateY(1px); }

.chip[aria-pressed="true"] {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
}

/* ── 책꽂이 ───────────────────────────────────────── */

.shelf {
  max-width: 68rem;
  margin-inline: auto;
  padding: var(--space-lg) clamp(1rem, 4vw, 2.5rem) var(--space-3xl);
}

.shelf__count {
  margin: 0 0 var(--space-lg);
  color: var(--color-muted);
  font-size: var(--text-sm);
  font-weight: 700;
}

.grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(10.5rem, 100%), 1fr));
  gap: var(--space-xl) var(--space-lg);
}

.book { min-width: 0; }

.book__cover {
  position: relative;
  aspect-ratio: 3 / 4;
  display: grid;
  place-items: center;
  border-radius: var(--radius-card);
  transition: transform var(--dur-short) var(--ease-out),
              box-shadow var(--dur-short) var(--ease-out);
}

/* 책등 느낌의 얇은 선 */
.book__cover::before {
  content: "";
  position: absolute;
  inset-block: 0;
  inset-inline-start: 9%;
  width: 1px;
  background: var(--color-paper);
  opacity: 0.55;
}

.book__emoji { font-size: clamp(2.75rem, 6vw, 3.75rem); }

@media (hover: hover) and (pointer: fine) {
  .book:hover .book__cover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-whisper);
  }
}

/* 표지 색 — books.js 의 color 이름과 짝꿍 */
.book__cover--pink     { background: linear-gradient(150deg, var(--cover-pink-a),     var(--cover-pink-b)); }
.book__cover--mint     { background: linear-gradient(150deg, var(--cover-mint-a),     var(--cover-mint-b)); }
.book__cover--lavender { background: linear-gradient(150deg, var(--cover-lavender-a), var(--cover-lavender-b)); }
.book__cover--sky      { background: linear-gradient(150deg, var(--cover-sky-a),      var(--cover-sky-b)); }
.book__cover--peach    { background: linear-gradient(150deg, var(--cover-peach-a),    var(--cover-peach-b)); }
.book__cover--lemon    { background: linear-gradient(150deg, var(--cover-lemon-a),    var(--cover-lemon-b)); }

.book__title {
  margin: var(--space-sm) 0 0;
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 700;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.book__author {
  margin: var(--space-2xs) 0 0;
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.book__stars {
  margin: var(--space-2xs) 0 0;
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
}

.book__stars .is-full  { color: var(--color-star); }
.book__stars .is-empty { color: var(--color-rule); }

/* 처음 열 때 한 번만 사르르 나타나기 */
.book.reveal {
  opacity: 0;
  transform: translateY(8px);
  animation: reveal var(--dur-long) var(--ease-out) forwards;
  animation-delay: calc(var(--i, 0) * 40ms);
}

@keyframes reveal {
  to { opacity: 1; transform: none; }
}

/* ── 검색 결과가 없을 때 ───────────────────────────── */

.empty { padding-block: var(--space-xl); }

.empty__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 700;
}

.empty__hint {
  margin: var(--space-2xs) 0 var(--space-md);
  color: var(--color-muted);
}

.btn {
  min-height: 2.75rem;
  padding: var(--space-xs) var(--space-lg);
  border: var(--rule-hair) solid var(--color-ink);
  border-radius: var(--radius-pill);
  background: var(--color-paper);
  color: var(--color-ink);
  font: inherit;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color var(--dur-short) var(--ease-out),
              transform var(--dur-micro) var(--ease-out);
}

.btn:hover { background: var(--color-paper-2); }
.btn:active { transform: translateY(1px); }

.chip:disabled,
.btn:disabled,
.search__input:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* ── 푸터: 흐르는 글자 ─────────────────────────────── */

.foot-marquee {
  overflow: hidden;
  border-top: 2px solid var(--color-ink);
  background: var(--color-paper-2);
}

.foot-marquee__track {
  display: flex;
  white-space: nowrap;
  padding-block: var(--space-md);
  animation: foot-marquee 48s linear infinite;
}

.foot-marquee__track span {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.08em;
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  color: var(--color-ink-2);
}

@keyframes foot-marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── 움직임을 줄이고 싶은 사람에게 ──────────────────── */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 150ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 150ms !important;
  }
  .foot-marquee__track { animation: none; }
  .book.reveal { animation: reveal 150ms linear forwards; }
}

/* ── 좁은 화면 ────────────────────────────────────── */

@media (max-width: 40rem) {
  .search { flex-basis: 100%; max-width: none; }
  .chip { min-height: 2.75rem; }
  .grid {
    grid-template-columns: repeat(auto-fill, minmax(min(8.5rem, 100%), 1fr));
    gap: var(--space-lg) var(--space-md);
  }
  .book__title { font-size: var(--text-base); }
}