/* Trang chủ — Không gian văn hóa Hồ Chí Minh (theo thiết kế landing) */

@import url("https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&family=Lora:ital,wght@0,400;0,600;0,700;1,400;1,600&display=swap");

:root {
  --cream: #f9f8f4;
  --cream-deep: #f0ebe3;
  --ink: #2a2520;
  --ink-muted: #5c554c;
  --gold: #8b7355;
  --hero-fade: #f9f8f4;
}

body.page-landing {
  margin: 0;
  font-family: "DM Sans", system-ui, sans-serif;
  background: var(--cream);
  color: var(--ink);
  line-height: 1.65;
  padding-bottom: 88px;
}

body.page-redirect {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "DM Sans", system-ui, sans-serif;
  background: var(--cream);
  color: var(--ink);
}

.page-redirect__inner {
  text-align: center;
  padding: 24px;
}

.site-brand--static {
  position: static;
  transform: none;
  display: inline-block;
  margin: 0 auto 20px;
  padding: 10px 18px;
  background: #1a1510;
  border-radius: 10px;
}

.site-brand--static .site-brand__logo {
  height: clamp(48px, 12vw, 64px);
}

body.page-landing * {
  box-sizing: border-box;
}

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

.landing-serif {
  font-family: "Lora", Georgia, serif;
}

/* Hero */
.landing-hero {
  position: relative;
  min-height: min(92vh, 820px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  isolation: isolate;
  background-color: #1a1510;
}

.landing-hero__bg {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      to bottom,
      rgba(26, 21, 16, 0.45) 0%,
      rgba(26, 21, 16, 0.25) 38%,
      rgba(26, 21, 16, 0.55) 100%
    ),
    url("./assets/hero-reference.png");
  background-size: cover;
  background-position: center 35%;
  z-index: 0;
}

.landing-hero__fade {
  position: absolute;
  inset: 0;
  top: auto;
  height: 38%;
  background: linear-gradient(
    to bottom,
    transparent,
    var(--hero-fade)
  );
  z-index: 1;
  pointer-events: none;
}

.site-brand {
  position: absolute;
  top: max(18px, env(safe-area-inset-top, 0px));
  left: 50%;
  z-index: 3;
  display: block;
  line-height: 0;
  transform: translateX(-50%);
  opacity: 0.98;
  transition: opacity 0.2s ease;
}

.site-brand:hover {
  opacity: 1;
}

.site-brand:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.85);
  outline-offset: 4px;
  border-radius: 4px;
}

.site-brand__logo {
  display: block;
  height: clamp(44px, 10vw, 60px);
  width: auto;
  max-width: min(360px, 90vw);
  object-fit: contain;
}

.landing-hero__inner {
  position: relative;
  z-index: 2;
  width: min(720px, 90%);
  padding: 120px 0 140px;
}

.landing-hero__label {
  margin: 0 0 16px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.38em;
  text-transform: uppercase;
  opacity: 0.95;
}

.landing-hero__title {
  margin: 0 0 24px;
  font-family: "Lora", Georgia, serif;
  font-weight: 600;
  font-size: clamp(42px, 9vw, 76px);
  line-height: 1.05;
  letter-spacing: 0.02em;
  text-shadow: 0 4px 40px rgba(0, 0, 0, 0.35);
}

.landing-hero__quote {
  margin: 0 auto;
  max-width: 34em;
  font-family: "Lora", Georgia, serif;
  font-size: clamp(15px, 2.2vw, 18px);
  font-style: italic;
  font-weight: 400;
  line-height: 1.7;
  opacity: 0.95;
}

/* Intro */
.landing-intro {
  padding: 72px 0 88px;
}

.landing-wrap {
  width: min(1040px, 92%);
  margin: 0 auto;
}

.landing-intro__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.landing-intro__title {
  margin: 0 0 20px;
  font-family: "Lora", Georgia, serif;
  font-size: clamp(26px, 3.4vw, 34px);
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
}

.landing-intro__text {
  margin: 0;
  font-size: 16px;
  color: var(--ink-muted);
}

.landing-intro__figure {
  margin: 0;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(42, 37, 32, 0.12);
}

.landing-intro__figure img {
  display: block;
  width: 100%;
  height: min(380px, 48vw);
  object-fit: cover;
  object-position: center;
}

/* Feature cards */
.landing-features {
  padding: 8px 0 96px;
}

.landing-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.landing-card {
  background: #fff;
  border: 1px solid rgba(139, 115, 85, 0.18);
  border-radius: 14px;
  padding: 28px 24px 30px;
  box-shadow: 0 8px 28px rgba(42, 37, 32, 0.06);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.landing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(42, 37, 32, 0.1);
}

.landing-card__icon {
  width: 40px;
  height: 40px;
  margin-bottom: 18px;
  color: var(--gold);
}

.landing-card__icon svg {
  width: 100%;
  height: 100%;
}

.landing-card__title {
  margin: 0 0 12px;
  font-family: "Lora", Georgia, serif;
  font-size: 20px;
  font-weight: 600;
}

.landing-card__text {
  margin: 0;
  font-size: 15px;
  color: var(--ink-muted);
  line-height: 1.65;
}

.landing-card__link {
  display: inline-block;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.landing-card__link:hover {
  border-bottom-color: var(--gold);
}

/* Quotes */
.landing-quotes {
  padding: 56px 0 100px;
  text-align: center;
}

.landing-quotes__label {
  margin: 0 0 56px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--gold);
}

.landing-quote-block {
  margin: 0 auto 52px;
  max-width: 640px;
}

.landing-quote-block:last-child {
  margin-bottom: 0;
}

.landing-quote-block blockquote {
  margin: 0 0 14px;
  font-family: "Lora", Georgia, serif;
  font-size: clamp(19px, 2.6vw, 24px);
  font-style: italic;
  font-weight: 400;
  line-height: 1.55;
  color: var(--ink);
}

.landing-quote-block__meta {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.landing-quote-block__year {
  font-family: "DM Sans", sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.landing-quote-block cite {
  display: block;
  font-family: "DM Sans", sans-serif;
  font-size: 14px;
  font-style: normal;
  color: var(--ink-muted);
}

/* Footer band */
.landing-foot {
  position: relative;
  padding: 96px 24px 40px;
  text-align: center;
  background-color: var(--cream-deep);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'%3E%3Cpath fill='%238b7355' fill-opacity='0.06' d='M40 0L48 12h16L52 20l8 12-20-8-20 8 8-12-12-8h16z'/%3E%3C/svg%3E");
  overflow: hidden;
}

.landing-foot::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 90% 60% at 50% 0%,
    rgba(240, 235, 227, 0.9),
    transparent 65%
  );
  pointer-events: none;
}

.landing-foot__inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
}

.landing-foot__quote {
  margin: 0 0 12px;
  font-family: "Lora", Georgia, serif;
  font-size: clamp(22px, 3.5vw, 30px);
  font-weight: 600;
  line-height: 1.35;
}

.landing-foot__attr {
  margin: 0 0 28px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
}

.landing-foot__rule {
  width: 48px;
  height: 1px;
  margin: 0 auto 20px;
  background: var(--gold);
  opacity: 0.5;
}

.landing-foot__tag {
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--ink-muted);
}

.landing-foot__brand {
  margin: 0;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--ink-muted);
}

.landing-foot__links {
  margin-top: 28px;
  font-size: 13px;
}

.landing-foot__links a {
  color: var(--gold);
  text-decoration: none;
}

.landing-foot__links a:hover {
  text-decoration: underline;
}

.landing-foot__sep {
  margin: 0 8px;
  color: rgba(92, 85, 76, 0.45);
}

/* Bottom nav */
.landing-dock {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 100;
  display: flex;
  justify-content: space-around;
  align-items: stretch;
  gap: 4px;
  padding: 10px 12px calc(12px + env(safe-area-inset-bottom, 0));
  background: rgba(249, 248, 244, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid rgba(139, 115, 85, 0.2);
  box-shadow: 0 -8px 32px rgba(42, 37, 32, 0.06);
}

.landing-dock a {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 4px;
  padding: 6px 4px;
  font-size: 11px;
  font-weight: 500;
  color: var(--ink-muted);
  text-decoration: none;
  border-radius: 10px;
  transition: background 0.2s ease, color 0.2s ease;
}

.landing-dock a svg {
  width: 22px;
  height: 22px;
  opacity: 0.85;
}

.landing-dock a:hover,
.landing-dock a:focus-visible {
  background: rgba(139, 115, 85, 0.1);
  color: var(--ink);
  outline: none;
}

.landing-dock a.is-active {
  color: var(--ink);
  font-weight: 600;
}

.landing-dock a.is-active svg {
  opacity: 1;
  color: var(--gold);
}

/* Scroll reveal */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 880px) {
  .landing-intro__grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .landing-intro__figure img {
    height: 280px;
  }

  .landing-cards {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .landing-card {
    transition: none;
  }

  .landing-card:hover {
    transform: none;
  }
}

/* ——— Trang nội dung (cùng hệ với trang chủ) ——— */

.landing-hero--page {
  min-height: 0;
  align-items: flex-end;
}

.landing-hero--page .landing-hero__bg {
  background-position: center 40%;
}

.landing-hero__inner--page {
  padding: 88px 0 96px;
  width: min(880px, 92%);
  text-align: center;
}

.landing-hero--page .landing-hero__title {
  font-size: clamp(28px, 5vw, 46px);
  margin-bottom: 16px;
}

.landing-hero__desc {
  margin: 0 auto;
  max-width: 40em;
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: clamp(15px, 2vw, 17px);
  font-style: normal;
  font-weight: 400;
  line-height: 1.65;
  opacity: 0.92;
}

.landing-page-main {
  padding: 28px 0 108px;
}

body.page-landing .container {
  width: min(1040px, 92%);
  margin: 0 auto;
}

body.page-landing main.container {
  padding-left: 0;
  padding-right: 0;
}

body.page-landing .block {
  background: #fff;
  border: 1px solid rgba(139, 115, 85, 0.18);
  border-radius: 14px;
  padding: 22px 26px;
  margin: 0 0 22px;
  box-shadow: 0 8px 28px rgba(42, 37, 32, 0.06);
}

body.page-landing .block:last-child {
  margin-bottom: 0;
}

body.page-landing .block h2 {
  margin: 0 0 10px;
  font-family: "Lora", Georgia, serif;
  font-size: clamp(21px, 2.5vw, 28px);
  font-weight: 600;
  color: var(--ink);
}

body.page-landing .section-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

body.page-landing .section-head h2 {
  margin: 0;
}

body.page-landing .count {
  margin: 0;
  font-size: 14px;
  color: var(--ink-muted);
}

body.page-landing .count strong {
  color: var(--ink);
  font-weight: 600;
}

body.page-landing .controls {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 14px;
  margin-top: 8px;
}

body.page-landing .search-wrap,
body.page-landing .filter-wrap {
  display: block;
  margin: 14px 0 18px;
}

body.page-landing .search-wrap span,
body.page-landing .filter-wrap span {
  display: block;
  margin-bottom: 8px;
  color: var(--ink-muted);
  font-size: 14px;
}

body.page-landing input[type="text"],
body.page-landing select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid rgba(139, 115, 85, 0.28);
  border-radius: 10px;
  font-size: 15px;
  font-family: inherit;
  background: #fff;
  color: var(--ink);
}

body.page-landing input[type="text"]:focus,
body.page-landing select:focus {
  outline: 2px solid rgba(139, 115, 85, 0.35);
  outline-offset: 0;
}

body.page-landing .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 8px;
}

body.page-landing .card {
  border: 1px solid rgba(139, 115, 85, 0.16);
  border-radius: 12px;
  padding: 16px 16px 18px;
  background: #fff;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: 0 4px 18px rgba(42, 37, 32, 0.05);
}

body.page-landing .card h3 {
  margin: 0;
  font-family: "Lora", Georgia, serif;
  font-size: 17px;
  line-height: 1.35;
  font-weight: 600;
  color: var(--ink);
}

body.page-landing .card p,
body.page-landing .muted {
  margin: 0;
  color: var(--ink-muted);
  font-size: 14px;
}

body.page-landing .meta {
  color: var(--ink-muted);
  font-size: 13px;
}

body.page-landing .badge {
  display: inline-block;
  width: fit-content;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--gold);
  background: rgba(139, 115, 85, 0.12);
  border-radius: 999px;
  padding: 4px 10px;
}

body.page-landing .badge.success {
  background: rgba(46, 125, 50, 0.12);
  color: #2e7d32;
}

body.page-landing .card .actions {
  margin-top: auto;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

body.page-landing .btn {
  display: inline-block;
  text-decoration: none;
  border-radius: 10px;
  padding: 10px 16px;
  font-weight: 600;
  font-size: 14px;
  border: 0;
  cursor: pointer;
  font-family: inherit;
}

body.page-landing .btn.primary {
  background: var(--gold);
  color: #fff;
}

body.page-landing .btn.primary:hover {
  filter: brightness(1.05);
}

body.page-landing .btn.secondary {
  background: rgba(139, 115, 85, 0.12);
  color: var(--ink);
}

body.page-landing .btn.secondary:hover {
  background: rgba(139, 115, 85, 0.2);
}

body.page-landing .goals {
  margin: 12px 0 0;
  padding-left: 20px;
  color: var(--ink-muted);
}

body.page-landing .goals li {
  margin-bottom: 8px;
}

body.page-landing .goals li:last-child {
  margin-bottom: 0;
}

body.page-landing .note {
  background: rgba(139, 115, 85, 0.08);
  border: 1px solid rgba(139, 115, 85, 0.22);
  border-radius: 10px;
  padding: 14px 16px;
  margin-top: 16px;
  font-size: 14px;
  color: var(--ink-muted);
}

body.page-landing .note strong {
  color: var(--ink);
}

body.page-landing .timeline {
  border-left: 3px solid rgba(139, 115, 85, 0.35);
  margin-left: 10px;
  padding-left: 18px;
}

body.page-landing .timeline-item {
  position: relative;
  margin-bottom: 18px;
  padding-bottom: 8px;
}

body.page-landing .timeline-item:last-child {
  margin-bottom: 0;
}

body.page-landing .timeline-item::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 6px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(139, 115, 85, 0.2);
}

body.page-landing .timeline-item h3 {
  margin: 0 0 6px;
  font-family: "Lora", Georgia, serif;
  font-size: 18px;
  font-weight: 600;
}

body.page-landing .kpi {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 6px;
}

body.page-landing .timeline-highlights {
  margin: 10px 0 0;
  padding-left: 1.15rem;
  font-size: 14px;
  color: var(--ink-muted);
  line-height: 1.55;
}

body.page-landing .timeline-highlights li {
  margin-bottom: 6px;
}

body.page-landing .timeline-highlights li:last-child {
  margin-bottom: 0;
}

body.page-landing .goals a {
  color: var(--gold);
  font-weight: 600;
  text-decoration: none;
}

body.page-landing .goals a:hover {
  text-decoration: underline;
}

body.page-landing .section-lead {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-muted);
}

body.page-landing .museum-portal a {
  color: var(--gold);
  font-weight: 600;
  text-decoration: none;
}

body.page-landing .museum-portal a:hover {
  text-decoration: underline;
}

body.page-landing .card__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}

body.page-landing .card--museum .card__hint {
  margin: 0 0 12px;
  font-size: 13px;
}

body.page-landing .grid--museums {
  margin-top: 16px;
}

body.page-landing #bao-tang-3d {
  scroll-margin-top: 24px;
}

body.page-landing .block--infographic {
  padding: 0;
  overflow: hidden;
}

body.page-landing .block--infographic .infographic {
  margin: 0;
  line-height: 0;
  border: none;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

body.page-landing .block--infographic .infographic img {
  display: block;
  width: 100%;
  height: auto;
  margin: 0;
  border-radius: 0;
}

body.page-landing .timeline-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 14px;
  margin-top: 16px;
  padding-top: 4px;
}

body.page-landing .timeline-figure {
  margin: 0;
  border-radius: 10px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(139, 115, 85, 0.2);
  box-shadow: 0 2px 10px rgba(44, 36, 24, 0.06);
}

body.page-landing .timeline-figure__link {
  display: block;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: rgba(139, 115, 85, 0.08);
}

body.page-landing .timeline-figure__link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.25s ease;
}

body.page-landing .timeline-figure__link:hover img {
  transform: scale(1.04);
}

body.page-landing .timeline-figure figcaption {
  padding: 10px 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

body.page-landing .timeline-figure__code {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
}

body.page-landing .timeline-figure__title {
  font-size: 13px;
  line-height: 1.45;
  color: var(--ink-muted);
}

/* Flipbook module */
body.page-landing .block--flipbook {
  overflow: hidden;
}

body.page-landing .flipbook-module {
  margin-top: 8px;
  border-radius: 16px;
  border: 1px solid rgba(139, 115, 85, 0.28);
  background: linear-gradient(180deg, #f9f6ef 0%, #f3ece0 100%);
  color: var(--ink);
  padding: 12px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.75);
}

body.page-landing .flipbook-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
  padding: 10px;
  border-radius: 12px;
  border: 1px solid rgba(139, 115, 85, 0.2);
  background: rgba(255, 255, 255, 0.45);
}

body.page-landing .flipbook-toolbar__group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

body.page-landing .flipbook-btn {
  border: 1px solid rgba(139, 115, 85, 0.32);
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink);
  border-radius: 10px;
  height: 34px;
  min-width: 34px;
  padding: 0 11px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
}

body.page-landing .flipbook-btn:hover,
body.page-landing .flipbook-btn:focus-visible {
  background: rgba(139, 115, 85, 0.12);
  border-color: rgba(139, 115, 85, 0.45);
}

body.page-landing .flipbook-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

body.page-landing .flipbook-btn--ghost {
  background: rgba(249, 248, 244, 0.72);
}

body.page-landing .flipbook-page {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
}

body.page-landing .flipbook-page input {
  width: 62px;
  height: 34px;
  border-radius: 10px;
  border: 1px solid rgba(139, 115, 85, 0.3);
  background: #fff;
  color: var(--ink);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  text-align: center;
}

body.page-landing .flipbook-zoom-badge {
  min-width: 50px;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--gold);
}

body.page-landing .flipbook-body {
  position: relative;
  border-radius: 13px;
  border: 1px solid rgba(139, 115, 85, 0.2);
  background: #fdfbf6;
  overflow: hidden;
}

body.page-landing .flipbook-outline-panel {
  position: absolute;
  z-index: 12;
  top: 0;
  left: 0;
  bottom: 0;
  width: min(78vw, 330px);
  background: rgba(247, 242, 233, 0.98);
  border-right: 1px solid rgba(139, 115, 85, 0.24);
  box-shadow: 10px 0 20px rgba(42, 37, 32, 0.12);
  padding: 14px 12px;
  overflow: auto;
}

body.page-landing .flipbook-outline-title {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
}

body.page-landing .flipbook-outline-list ul {
  margin: 4px 0 0;
  padding-left: 16px;
}

body.page-landing .flipbook-outline-list button {
  border: 0;
  background: transparent;
  color: var(--ink);
  font-family: inherit;
  font-size: 13px;
  line-height: 1.4;
  text-align: left;
  padding: 4px 0;
  cursor: pointer;
}

body.page-landing .flipbook-outline-list button:hover,
body.page-landing .flipbook-outline-list button:focus-visible {
  text-decoration: underline;
}

body.page-landing .flipbook-stage-wrap {
  padding: 12px;
}

body.page-landing .flipbook-status {
  margin: 0 0 8px;
  color: var(--ink-muted);
  font-size: 13px;
  line-height: 1.45;
}

body.page-landing .flipbook-stage {
  min-height: clamp(380px, 64vh, 620px);
  max-height: 72vh;
  border: 1px solid rgba(139, 115, 85, 0.24);
  border-radius: 12px;
  background: linear-gradient(180deg, #f6efe4 0%, #f3ebde 100%);
  overflow: auto;
  display: grid;
  place-items: center;
  padding: 14px;
}

body.page-landing .flipbook-sheet {
  position: relative;
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 16px 40px rgba(42, 37, 32, 0.2);
  transform-origin: center right;
}

body.page-landing .flipbook-sheet::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 10px;
  box-shadow: inset 0 0 0 1px rgba(9, 18, 36, 0.08);
  pointer-events: none;
}

body.page-landing .flipbook-sheet canvas {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 10px;
}

body.page-landing .flipbook-sheet.is-flip-next {
  animation: flipbookNext 360ms cubic-bezier(0.2, 0.75, 0.2, 1);
}

body.page-landing .flipbook-sheet.is-flip-prev {
  animation: flipbookPrev 360ms cubic-bezier(0.2, 0.75, 0.2, 1);
}

body.page-landing .flipbook-hint {
  margin: 8px 0 0;
  color: var(--ink-muted);
  font-size: 12px;
  line-height: 1.45;
}

body.page-landing .flipbook-shelf {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

body.page-landing .flipbook-book-btn {
  border: 1px solid rgba(139, 115, 85, 0.28);
  border-radius: 14px;
  background: linear-gradient(170deg, #f8f3ea 0%, #efe4d1 100%);
  padding: 8px;
  text-align: left;
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(42, 37, 32, 0.13);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

body.page-landing .flipbook-book-btn:hover,
body.page-landing .flipbook-book-btn:focus-visible {
  transform: translateY(-2px);
}

body.page-landing .flipbook-book-btn.is-active {
  box-shadow: 0 0 0 2px rgba(139, 115, 85, 0.45), 0 8px 18px rgba(42, 37, 32, 0.18);
}

body.page-landing .flipbook-book-cover {
  border-radius: 10px;
  background: rgba(139, 115, 85, 0.12);
  aspect-ratio: 3 / 4;
  width: 100%;
  object-fit: cover;
  display: block;
}

body.page-landing .flipbook-book-title {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.35;
  color: var(--ink);
  font-weight: 600;
}

body.page-landing .flipbook-outline-panel .flipbook-hint {
  color: var(--ink-muted);
}

@keyframes flipbookNext {
  0% {
    transform: rotateY(0deg) translateX(0);
    filter: brightness(1);
  }
  48% {
    transform: rotateY(-84deg) translateX(20px);
    filter: brightness(0.84);
  }
  100% {
    transform: rotateY(0deg) translateX(0);
    filter: brightness(1);
  }
}

@keyframes flipbookPrev {
  0% {
    transform: rotateY(0deg) translateX(0);
    filter: brightness(1);
  }
  48% {
    transform: rotateY(84deg) translateX(-20px);
    filter: brightness(0.84);
  }
  100% {
    transform: rotateY(0deg) translateX(0);
    filter: brightness(1);
  }
}

@media (max-width: 1080px) {
  body.page-landing .flipbook-shelf {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  body.page-landing .flipbook-stage {
    min-height: clamp(340px, 60vh, 560px);
  }
}

@media (max-width: 860px) {
  body.page-landing .flipbook-module {
    padding: 9px;
  }

  body.page-landing .flipbook-toolbar__group {
    width: 100%;
    justify-content: flex-start;
  }

  body.page-landing .flipbook-outline-panel {
    width: min(90vw, 320px);
  }

  body.page-landing .flipbook-stage {
    min-height: clamp(300px, 56vh, 500px);
    max-height: 66vh;
    padding: 10px;
  }

  body.page-landing .flipbook-stage-wrap {
    padding: 10px;
  }

  body.page-landing .flipbook-shelf {
    display: flex;
    overflow-x: auto;
    gap: 10px;
    padding-bottom: 2px;
    scroll-snap-type: x proximity;
  }

  body.page-landing .flipbook-book-btn {
    flex: 0 0 132px;
    scroll-snap-align: start;
  }
}

@media (max-width: 760px) {
  body.page-landing .flipbook-shelf {
    gap: 8px;
  }

  body.page-landing .flipbook-book-btn {
    flex-basis: 122px;
  }

  body.page-landing .flipbook-stage {
    min-height: clamp(280px, 54vh, 460px);
    max-height: 60vh;
    padding: 8px;
  }

  body.page-landing .flipbook-stage-wrap {
    padding: 8px;
  }

  body.page-landing .flipbook-toolbar__group {
    width: 100%;
    gap: 6px;
  }
}

@media (max-width: 520px) {
  body.page-landing .flipbook-toolbar {
    padding: 8px;
  }

  body.page-landing .flipbook-btn {
    height: 32px;
    min-width: 32px;
    padding: 0 9px;
    font-size: 13px;
  }

  body.page-landing .flipbook-page {
    font-size: 13px;
  }

  body.page-landing .flipbook-page input {
    width: 54px;
    height: 32px;
    font-size: 13px;
  }

  body.page-landing .flipbook-zoom-badge {
    min-width: 44px;
    font-size: 12px;
  }

  body.page-landing .flipbook-hint {
    font-size: 11px;
  }
}

@media (prefers-reduced-motion: reduce) {
  body.page-landing .flipbook-book-btn,
  body.page-landing .flipbook-sheet.is-flip-next,
  body.page-landing .flipbook-sheet.is-flip-prev {
    transition: none;
    animation: none;
  }
}

@media (max-width: 760px) {
  body.page-landing .timeline-gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }
}

@media (max-width: 760px) {
  body.page-landing .controls {
    grid-template-columns: 1fr;
  }

  .landing-hero__inner--page {
    padding: 56px 0 72px;
  }
}