:root {
  color-scheme: dark;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  --page: #080d16;
  --panel: #111b2b;
  --panel-raised: #17253a;
  --text: #e9f4ff;
  --muted: #93a7bb;
  --line: #2b3d53;
  --accent: #39c8ee;
  --accent-strong: #087fa9;
  --danger: #ff8f8f;
  --focus: #ffe08a;
  --shadow: 0 18px 50px #0008;
}

body.light {
  color-scheme: light;
  --page: #edf4fb;
  --panel: #ffffff;
  --panel-raised: #e1edf7;
  --text: #152437;
  --muted: #526477;
  --line: #cbd9e6;
  --accent: #087fa9;
  --accent-strong: #066889;
  --danger: #a72828;
  --focus: #8a5e00;
  --shadow: 0 18px 50px #17344b26;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  min-width: 320px;
  min-height: 100vh;
  min-height: 100svh;
  margin: 0;
  background: var(--page);
  color: var(--text);
  transition: background-color 160ms ease, color 160ms ease;
}

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

button,
.button,
input,
select,
textarea {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
}

button,
.button {
  min-height: 44px;
  padding: 10px 14px;
  cursor: pointer;
  text-align: center;
  transition: border-color 140ms ease, background-color 140ms ease, transform 140ms ease;
}

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

button:active,
.button:active {
  transform: translateY(1px);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
  transform: none;
}

button:focus-visible,
.button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

input,
select,
textarea {
  width: 100%;
  min-height: 46px;
  padding: 11px 13px;
}

textarea {
  min-height: 90px;
  resize: vertical;
}

input::placeholder,
textarea::placeholder {
  color: var(--muted);
  opacity: 0.82;
}

.app-shell {
  width: min(100%, 1320px);
  margin: 0 auto;
  padding: max(24px, env(safe-area-inset-top)) max(20px, env(safe-area-inset-right)) max(22px, env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left));
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 10px 0 8px;
}

.brand h1 {
  margin: 8px 0 4px;
  font-size: clamp(30px, 5vw, 44px);
  line-height: 1.1;
  letter-spacing: -0.035em;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.2em;
}

.subtitle {
  margin: 10px 0 0;
  color: var(--muted);
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}

.button-primary {
  border-color: var(--accent-strong);
  background: var(--accent-strong);
  color: #fff;
}

.button-primary:hover {
  border-color: var(--accent);
  background: var(--accent);
  color: #06121a;
}

.button-quiet {
  background: transparent;
}

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

.admin-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 24px 0 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: color-mix(in srgb, var(--panel) 86%, transparent);
}

.file-button {
  user-select: none;
}

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

.browse-tools {
  display: flex;
  align-items: stretch;
  gap: 12px;
  margin: 28px 0 14px;
}

.search-control {
  position: relative;
  display: flex;
  flex: 1 1 420px;
  align-items: center;
  min-width: 0;
}

.search-control input {
  min-height: 50px;
  padding-left: 44px;
}

.search-icon {
  position: absolute;
  left: 15px;
  color: var(--muted);
  font-size: 25px;
  line-height: 1;
  pointer-events: none;
}

.filter-control {
  flex: 0 1 240px;
  min-width: 180px;
}

.filter-control select {
  min-height: 50px;
}

.app-status {
  min-height: 22px;
  margin: 8px 1px 14px;
  color: var(--muted);
  font-size: 13px;
}

.app-status[data-kind="error"],
.form-error {
  color: var(--danger);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 255px), 1fr));
  align-items: stretch;
  gap: 15px;
}

.card {
  display: flex;
  min-width: 0;
  min-height: 190px;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
  padding: 19px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
  box-shadow: 0 5px 18px #0000000a;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.card-content {
  min-width: 0;
}

.card-category {
  display: inline-flex;
  max-width: 100%;
  padding: 5px 9px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 13%, transparent);
  color: var(--accent);
  font-size: 11px;
  font-weight: 750;
  overflow-wrap: anywhere;
}

.card h2 {
  margin: 13px 0 8px;
  font-size: 19px;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.card-description,
.card-url,
.card-empty {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.card-url {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.card-empty {
  color: var(--muted);
  font-style: italic;
}

.card-link-wrap {
  display: inline-flex;
  margin-top: 10px;
}

.card-actions {
  display: none;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

body.admin-mode .card-actions {
  display: flex;
}

.card-actions button {
  min-height: 38px;
  padding: 7px 10px;
  font-size: 13px;
}

.card-actions .delete-card {
  margin-left: auto;
  color: var(--danger);
}

.empty-state {
  grid-column: 1 / -1;
  padding: 32px 18px;
  border: 1px dashed var(--line);
  border-radius: 16px;
  color: var(--muted);
  text-align: center;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 12px 24px;
  flex-wrap: wrap;
  margin-top: 32px;
  padding: 18px 2px 4px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.modal {
  width: min(560px, calc(100vw - 28px));
  max-width: none;
  max-height: min(88dvh, 800px);
  padding: 0;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--page);
  color: var(--text);
  box-shadow: var(--shadow);
}

.modal::backdrop {
  background: #020710b8;
  backdrop-filter: blur(4px);
}

.modal-small {
  width: min(460px, calc(100vw - 28px));
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: clamp(20px, 5vw, 28px);
}

.modal-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 2px;
}

.modal-heading h2 {
  margin: 7px 0 0;
  font-size: 23px;
}

.icon-button {
  width: 42px;
  min-width: 42px;
  min-height: 42px;
  padding: 0;
  border-radius: 50%;
  background: transparent;
  font-size: 25px;
  line-height: 1;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
  font-size: 14px;
  font-weight: 650;
}

.field small {
  color: var(--muted);
  font-size: 12px;
  font-weight: 400;
}

.form-error {
  min-height: 18px;
  margin: 0;
  font-size: 13px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 9px;
  flex-wrap: wrap;
  margin-top: 2px;
}

.inline-form {
  display: flex;
  gap: 9px;
}

.inline-form input {
  min-width: 0;
}

.category-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: min(40vh, 340px);
  margin: 0;
  padding: 0;
  overflow: auto;
  list-style: none;
}

.category-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.category-info {
  min-width: 0;
  overflow-wrap: anywhere;
}

.category-count {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.category-actions {
  display: flex;
  flex: 0 0 auto;
  gap: 6px;
}

.category-actions button {
  min-height: 38px;
  padding: 7px 10px;
  font-size: 13px;
}

@media (max-width: 760px) {
  .app-shell {
    padding-top: max(12px, env(safe-area-inset-top));
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    padding-top: 4px;
    padding-bottom: 4px;
  }

  .admin-toolbar {
    margin-top: 14px;
    padding: 10px;
  }

  .header-actions {
    justify-content: flex-start;
    width: 100%;
  }

  .browse-tools {
    align-items: stretch;
    flex-direction: column;
    margin: 14px 0 8px;
    gap: 8px;
  }

  .app-status {
    min-height: 18px;
    margin: 4px 1px 8px;
  }

  .search-control,
  .filter-control {
    flex-basis: auto;
  }

  .filter-control {
    width: 100%;
  }

  .card-grid {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
    gap: 11px;
  }

  .card {
    min-height: 0;
    gap: 12px;
    padding: 16px;
  }

  .card h2 {
    margin: 9px 0 6px;
  }

  .site-footer {
    flex-direction: column;
    gap: 8px;
    margin-top: 20px;
    padding-top: 14px;
  }
}

@media (max-width: 440px) {
  .header-actions > button {
    flex: 1 1 140px;
  }

  .admin-toolbar > .button {
    flex: 1 1 135px;
  }

  .inline-form {
    align-items: stretch;
    flex-direction: column;
  }

  .category-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .category-actions {
    width: 100%;
  }
}

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