:root {
  --bg: #f2f2f2;
  --surface: #ffffff;
  --surface-muted: #f0f0f0;
  --surface-accent: #e6e6e6;
  --text: #111111;
  --text-soft: #4d4d4d;
  --line: #d9d9d9;
  --brand: #111111;
  --brand-ink: #ffffff;
  --danger: #222222;
  --warning: #333333;
  --success: #000000;
  --radius-sm: 0.625rem;
  --radius-md: 0.875rem;
  --radius-lg: 1rem;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 14px 30px rgba(15, 23, 42, 0.08);
  --site-width: 72rem;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  background: linear-gradient(180deg, #f7f7f7 0%, #ececec 55%, #f7f7f7 100%);
  color: var(--text);
  font-family: "Courier New", Courier, "Lucida Console", "Liberation Mono", monospace;
  line-height: 1.5;
  text-wrap: pretty;
  overflow-x: hidden;
}

a {
  color: inherit;
}

h1,
h2,
h3,
h4,
h5,
h6,
p,
ul,
ol,
figure {
  margin: 0;
}

h1,
h2,
h3,
h4,
h5,
h6,
p,
li,
a,
small,
label,
span,
button,
input,
textarea,
select,
th,
td {
  overflow-wrap: anywhere;
}

img,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

.app-shell {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  padding-left: max(0.75rem, env(safe-area-inset-left));
  padding-right: max(0.75rem, env(safe-area-inset-right));
  padding-top: max(0.75rem, env(safe-area-inset-top));
  padding-bottom: max(0.75rem, env(safe-area-inset-bottom));
}

.app-header,
.app-nav,
.content-container,
.app-footer {
  width: min(var(--site-width), 100%);
  margin-inline: auto;
}

.app-header {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1rem;
  box-shadow: var(--shadow-sm);
}

.app-header h1 {
  font-size: clamp(1.3rem, 4vw, 2rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
}

.app-nav {
  margin-top: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 0.625rem;
  box-shadow: var(--shadow-sm);
}

.nav-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.nav-pills a,
.nav-button {
  min-height: 44px;
  padding: 0.55rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-muted);
  color: var(--text);
  text-decoration: none;
  font-size: 0.95rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.nav-pills a:hover,
.nav-button:hover {
  background: var(--surface-accent);
  border-color: #bdbdbd;
  transform: translateY(-1px);
}

.nav-pills a:focus-visible,
.nav-button:focus-visible,
.btn-link:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid #222222;
  outline-offset: 2px;
}

.nav-inline-form {
  margin: 0;
}

.content-container {
  margin-top: 0.9rem;
  flex: 1;
  display: grid;
  gap: 0.9rem;
}

.flash-list {
  list-style: none;
  display: grid;
  gap: 0.6rem;
  padding: 0;
}

.flash-item {
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 0.7rem 0.85rem;
  box-shadow: var(--shadow-sm);
}

.flash-error {
  border-color: #c7c7c7;
  background: #f5f5f5;
}

.flash-success {
  border-color: #bdbdbd;
  background: #f0f0f0;
}

.flash-warning {
  border-color: #c9c9c9;
  background: #f3f3f3;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 0.95rem;
  box-shadow: var(--shadow-sm);
}

.card h2,
.card h3 {
  line-height: 1.25;
}

.card p + p {
  margin-top: 0.5rem;
}

.card-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: 1fr;
}

.section-title {
  margin-bottom: 0.65rem;
  color: var(--text-soft);
  font-size: 0.98rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.notice-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
}

.notice-dismiss {
  min-height: 44px;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  border: 1px solid #bcbcbc;
  background: #ececec;
  color: #1a1a1a;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.hero-shelves {
  display: grid;
  gap: 0.95rem;
}

.library-panel {
  display: grid;
  gap: 0.8rem;
}

.library-panel-head {
  display: grid;
  gap: 0.25rem;
}

.library-panel-head h2 {
  font-size: 1.15rem;
}

.library-panel-head p {
  color: var(--text-soft);
}

.preview-grid {
  display: grid;
  gap: 0.55rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.preview-card {
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--surface-muted);
  aspect-ratio: 3 / 4;
}

.preview-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.link-grid .card {
  display: grid;
  gap: 0.6rem;
}

.link-grid h3 {
  font-size: 1rem;
}

.link-grid p {
  color: var(--text-soft);
}

.btn-link {
  min-height: 44px;
  padding: 0.58rem 0.95rem;
  border-radius: 0.7rem;
  border: 1px solid #bdbdbd;
  background: #ececec;
  color: #1a1a1a;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  font-weight: 600;
}

.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.form-card {
  display: grid;
  gap: 0.85rem;
}

.form-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: 1fr;
}

.form-field {
  display: grid;
  gap: 0.35rem;
}

.form-field label {
  font-weight: 600;
  font-size: 0.94rem;
}

input,
textarea,
select,
button {
  font: inherit;
}

input,
textarea,
select {
  width: 100%;
  min-height: 44px;
  padding: 0.56rem 0.7rem;
  border-radius: 0.65rem;
  border: 1px solid #c2c2c2;
  background: #fff;
  color: var(--text);
}

textarea {
  min-height: 7.5rem;
  resize: vertical;
}

button {
  min-height: 44px;
  padding: 0.58rem 0.95rem;
  border-radius: 0.7rem;
  border: 1px solid #111111;
  background: var(--brand);
  color: var(--brand-ink);
  cursor: pointer;
  font-weight: 600;
}

button:hover {
  background: #000000;
}

.small-note {
  color: var(--text-soft);
  font-size: 0.9rem;
}

.metric-strip {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: 1fr;
}

.metric-value {
  font-size: clamp(1.2rem, 4vw, 1.8rem);
  font-weight: 700;
}

.books-table {
  display: none;
}

.books-table table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.books-table th,
.books-table td {
  text-align: left;
  padding: 0.65rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.books-table thead th {
  background: var(--surface-muted);
}

.books-table tbody tr:last-child td {
  border-bottom: 0;
}

.books-cards {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: 1fr;
}

.book-card {
  display: grid;
  gap: 0.45rem;
}

.book-meta {
  color: var(--text-soft);
  font-size: 0.92rem;
}

.gallery-route-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

.gallery-route-card {
  display: grid;
  gap: 0.7rem;
}

.gallery-detail-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: 1fr;
}

.gallery-detail-tile {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: flex-end;
  padding: 0.85rem;
}

.js-expandable-image {
  cursor: zoom-in;
}

.gallery-detail-tile::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.08), rgba(0, 0, 0, 0.68));
  z-index: 1;
}

.tile-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tile-title {
  position: relative;
  z-index: 2;
  color: #fff;
  font-weight: 600;
}

.tile-title-empty {
  position: relative;
  z-index: 2;
  color: #111111;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 999px;
  padding: 0.45rem 0.8rem;
}

.session-hidden {
  display: none !important;
}

.gallery-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.gallery-lightbox[hidden] {
  display: none !important;
}

.gallery-lightbox img {
  max-width: min(96vw, 1200px);
  max-height: 92vh;
  border-radius: 0.75rem;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.5);
  cursor: zoom-out;
}

body.lightbox-open {
  overflow: hidden;
}

.music-card {
  display: grid;
  gap: 0.65rem;
}

.music-embed-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 0.75rem;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #111111;
}

.music-embed-wrap iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.admin-item {
  display: grid;
  gap: 0.8rem;
}

.item-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.item-actions form {
  margin: 0;
}

.inline-form {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  align-items: center;
}

.inline-form input[type="text"],
.inline-form input[type="search"] {
  flex: 1 1 12rem;
}

.app-footer {
  margin-top: 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  color: var(--text-soft);
  text-align: center;
  padding: 0.75rem;
  font-size: 0.92rem;
}

@media (min-width: 480px) {
  .app-shell {
    padding-left: max(1rem, env(safe-area-inset-left));
    padding-right: max(1rem, env(safe-area-inset-right));
  }

  .content-container {
    gap: 1rem;
  }

  .preview-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .metric-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .gallery-route-grid,
  .gallery-detail-grid,
  .books-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .app-header {
    padding: 1.2rem 1.35rem;
  }

  .app-nav {
    padding: 0.8rem;
  }

  .content-container {
    margin-top: 1rem;
    gap: 1.15rem;
  }

  .card {
    padding: 1.1rem;
  }

  .hero-shelves {
    grid-template-columns: minmax(16rem, 22rem) 1fr;
    align-items: start;
  }

  .preview-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .form-field-full {
    grid-column: 1 / -1;
  }

  .gallery-route-grid,
  .gallery-detail-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .metric-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .books-table {
    display: block;
  }

  .books-cards {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}