:root {
  color-scheme: light dark;
  --font-ui: "Segoe UI Variable Text", "Segoe UI", "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  --font-display: "Segoe UI Variable Display", "Segoe UI", "SF Pro Display", "Helvetica Neue", Arial, sans-serif;

  --bg: #f5f7fb;
  --bg-subtle: #edf1f7;
  --panel: rgba(255, 255, 255, 0.9);
  --panel-strong: #ffffff;
  --panel-border: rgba(16, 24, 40, 0.08);
  --panel-border-strong: rgba(16, 24, 40, 0.12);
  --text: #1f2329;
  --text-muted: #5d6b82;
  --accent: #0f6cbd;
  --accent-hover: #115ea3;
  --accent-soft: rgba(15, 108, 189, 0.08);
  --good: #107c10;
  --good-soft: rgba(16, 124, 16, 0.1);
  --warn: #986f0b;
  --warn-soft: rgba(152, 111, 11, 0.12);
  --danger: #c42b1c;
  --danger-soft: rgba(196, 43, 28, 0.12);
  --shadow: 0 8px 28px rgba(15, 23, 42, 0.08);
  --radius: 12px;
  --radius-sm: 8px;
  --shell-width: 1240px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11161d;
    --bg-subtle: #161c24;
    --panel: rgba(28, 34, 43, 0.88);
    --panel-strong: rgba(31, 38, 48, 0.96);
    --panel-border: rgba(255, 255, 255, 0.08);
    --panel-border-strong: rgba(255, 255, 255, 0.12);
    --text: #f3f6fb;
    --text-muted: #b7c0cf;
    --accent: #4cc2ff;
    --accent-hover: #79d3ff;
    --accent-soft: rgba(76, 194, 255, 0.12);
    --good: #8fd98f;
    --good-soft: rgba(143, 217, 143, 0.12);
    --warn: #f2ce6e;
    --warn-soft: rgba(242, 206, 110, 0.14);
    --danger: #ff8a80;
    --danger-soft: rgba(255, 138, 128, 0.14);
    --shadow: 0 14px 32px rgba(0, 0, 0, 0.24);
  }
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  line-height: 1.45;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-hover);
}

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

img {
  max-width: 100%;
}

.shell {
  width: min(var(--shell-width), calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px 0 48px;
}

.hero,
.browser-hero,
.section-head,
.album-card-head,
.image-card-head,
.lightbox-meta,
.key-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}

.hero,
.browser-hero {
  margin-bottom: 20px;
  padding: 22px 24px;
  border: 1px solid var(--panel-border);
  border-radius: calc(var(--radius) + 2px);
  background: var(--panel-strong);
  box-shadow: var(--shadow);
}

.hero h1,
.browser-hero h1,
.login-shell h1,
.card h2,
.album-card h3,
.image-card h3,
.browser-card h3,
.lightbox-meta h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.hero h1,
.browser-hero h1,
.login-shell h1 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
}

.card h2,
.lightbox-meta h2 {
  font-size: 1.2rem;
}

.section-head {
  margin-bottom: 14px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.lede,
.meta dt,
.album-stats,
.key-meta,
.empty-inline,
.empty-state p,
.section-meta,
.browser-card p,
.image-card p,
.lightbox-meta p {
  color: var(--text-muted);
}

.section-meta {
  margin: 6px 0 0;
  font-size: 0.95rem;
}

.stats,
.dashboard-grid,
.album-grid,
.gallery-grid,
.detail-layout,
.browser-grid {
  display: grid;
  gap: 16px;
}

.stats {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 20px;
}

.dashboard-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 20px;
}

.album-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.gallery-grid {
  grid-template-columns: repeat(auto-fit, minmax(232px, 1fr));
}

.browser-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
}

.detail-layout {
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.95fr);
  align-items: start;
}

.section-block {
  margin-top: 22px;
}

.card,
.album-card,
.image-card,
.browser-card,
.stat-card,
.empty-state,
.lightbox-card {
  border-radius: var(--radius);
  border: 1px solid var(--panel-border);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.card,
.stat-card,
.empty-state {
  padding: 18px;
}

.card.danger {
  border-color: var(--danger-soft);
}

.stat-card {
  display: grid;
  gap: 10px;
  min-height: 112px;
  align-content: space-between;
}

.stat-card-link {
  color: inherit;
  text-decoration: none;
}

.stat-card-link:hover {
  color: inherit;
  border-color: var(--accent);
  background: var(--panel-strong);
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.stat-card strong {
  font-size: clamp(1.8rem, 2.8vw, 2.6rem);
  font-weight: 600;
}

.album-card,
.image-card,
.browser-card,
.lightbox-card {
  overflow: hidden;
}

.album-card {
  padding: 16px;
  display: grid;
  gap: 14px;
}

.album-card p {
  margin: 4px 0 0;
}

.album-stats,
.chip-row,
.hero-actions,
.album-card-badges,
.browser-nav,
.pager,
.image-card-actions,
.toolbar-form {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.image-thumb,
.browser-thumb {
  display: block;
  background: var(--bg-subtle);
}

.image-thumb {
  aspect-ratio: 4 / 3;
}

.browser-thumb {
  aspect-ratio: 5 / 4;
}

.image-thumb img,
.browser-thumb img,
.preview,
.lightbox-frame {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.image-card-body,
.browser-card-body {
  padding: 14px 16px 16px;
}

.image-card h3,
.browser-card h3 {
  font-size: 1.02rem;
}

.image-card p,
.browser-card p {
  margin: 4px 0 0;
}

.image-card-actions {
  justify-content: space-between;
  margin-top: 12px;
}

.preview {
  aspect-ratio: 4 / 3;
  border-radius: 14px;
  border: 1px solid var(--panel-border);
  background: var(--bg-subtle);
  margin-bottom: 16px;
}

.stack {
  display: grid;
  gap: 12px;
}

label {
  display: grid;
  gap: 6px;
}

label > span {
  font-size: 0.92rem;
  color: var(--text-muted);
}

input,
select,
textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--panel-border-strong);
  background: var(--panel-strong);
  color: var(--text);
  outline: none;
  transition: border-color 120ms ease, box-shadow 120ms ease, background 120ms ease;
}

textarea {
  resize: vertical;
}

input::placeholder,
textarea::placeholder {
  color: var(--text-muted);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

button,
.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 11px 15px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 120ms ease, border-color 120ms ease, opacity 120ms ease;
}

button:hover,
.button-link:hover {
  background: var(--accent-hover);
  color: #fff;
}

button:disabled,
select:disabled,
input:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--panel-border-strong);
}

.ghost:hover {
  background: var(--bg-subtle);
  color: var(--text);
}

.danger {
  background: var(--danger);
  color: #fff;
}

.danger:hover {
  background: #a4261a;
}

.danger-text {
  color: var(--danger);
}

.inline {
  display: inline-flex;
}

.notice {
  margin: 0 0 16px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--panel-border-strong);
  background: var(--accent-soft);
}

.meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 14px;
}

.meta dd {
  margin: 0;
}

.key-list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.key-row {
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--panel-border);
  background: var(--panel-strong);
}

.key-meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 4px;
  font-size: 0.9rem;
}

.chip,
.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 0.82rem;
  font-weight: 600;
}

.chip {
  border: 1px solid var(--panel-border);
  background: var(--bg-subtle);
  color: var(--text-muted);
}

.badge-neutral {
  background: var(--bg-subtle);
  color: var(--text-muted);
}

.badge-good {
  background: var(--good-soft);
  color: var(--good);
}

.badge-warn {
  background: var(--warn-soft);
  color: var(--warn);
}

.empty-state {
  min-height: 140px;
  display: grid;
  align-content: center;
  text-align: center;
}

.empty-state h3 {
  margin: 0 0 6px;
}

.empty-inline {
  margin-top: 10px;
}

.login-shell {
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: 20px;
  align-items: center;
}

.brand-panel {
  padding: 12px;
}

.brand-panel .lede {
  max-width: 32rem;
}

.login-card {
  padding: 20px;
}

.narrow {
  width: min(560px, 100%);
  margin: 72px auto 0;
}

.browser-shell,
.lightbox-shell {
  display: grid;
  gap: 14px;
}

.pager,
.browser-nav {
  justify-content: center;
  align-items: center;
}

.pager-state {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.toolbar-form {
  align-items: end;
}

.compact-field {
  min-width: 116px;
}

.compact-field span {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.pure-browser-grid .browser-card {
  border-radius: 10px;
}

.pure-browser-grid .browser-thumb {
  aspect-ratio: 4 / 3;
}

.lightbox-frame {
  aspect-ratio: 16 / 10;
  background: var(--bg-subtle);
}

.lightbox-meta {
  padding: 16px 18px 18px;
}

.disabled-link {
  opacity: 0.45;
  cursor: default;
  pointer-events: none;
}

.secret {
  overflow: auto;
  padding: 14px;
  border-radius: 14px;
  border: 1px solid var(--panel-border);
  background: var(--bg-subtle);
}

code,
pre {
  font-family: "Cascadia Code", "SFMono-Regular", "Consolas", monospace;
}

@media (max-width: 1040px) {
  .dashboard-grid,
  .detail-layout,
  .login-shell {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .stats {
    grid-template-columns: 1fr;
  }

  .hero,
  .browser-hero,
  .section-head,
  .album-card-head,
  .image-card-head,
  .lightbox-meta,
  .key-row {
    flex-direction: column;
  }

  .shell {
    width: min(100vw - 16px, 100%);
    padding-top: 16px;
  }

  .browser-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .hero-actions,
  .toolbar-form,
  .pager,
  .browser-nav,
  .image-card-actions {
    width: 100%;
  }

  .pager,
  .browser-nav {
    gap: 12px;
  }

  .pager .button-link,
  .browser-nav .button-link,
  .hero-actions .button-link,
  .toolbar-form .button-link,
  .toolbar-form button {
    flex: 1 1 calc(50% - 12px);
  }

  .pager-state {
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .browser-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero,
  .browser-hero,
  .card,
  .stat-card,
  .empty-state {
    padding-left: 14px;
    padding-right: 14px;
  }

  .toolbar-form .compact-field {
    flex: 1 1 100%;
  }

  .toolbar-form select,
  .toolbar-form button,
  .pager .button-link,
  .browser-nav .button-link,
  .hero-actions .button-link {
    width: 100%;
  }
}