@layer tokens, reset, components, page;

@layer tokens {
  :root {
    --bg: #EEF1F0;
    --surface: #FFFFFF;
    --ink: #16191D;
    --ink-soft: #5A6360;
    --line: #D5DAD8;
    --accent: #006E4E;
    --accent-ink: #FFFFFF;
    --warn: #B7791F;
    --radius: 10px;
    --radius-s: 6px;
    --radius-pill: 99px;
    --control-h: 40px;
    --gap: 12px;
    --gap-l: 20px;
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-7: 32px;
    --page-pad: clamp(16px, 4vw, 40px);
    --content-max: 1240px;
    --page-top: var(--space-7);
    --header-h: 68px;
    --search-h: 112px;
    --search-max: 760px;
    --screw-size: 10px;
    --plate-border: 2px;
    --border-hairline: 1px;
    --plate-h: 96px;
    --plate-max: 230px;
    --card-min-h: 180px;
    --plate-font-size: clamp(25px, 4vw, 39px);
    --plate-glyph-height: calc(var(--plate-h) * .52);
    --search-glyph-height: clamp(22px, 3.2vw, 36px);
    --plate-letter-spacing: 0.08em;
    --shadow-card: 0 1px 2px rgb(0 0 0 / .06);
    --shadow-card-hover: 0 3px 8px rgb(0 0 0 / .1);
    --card-lift: 2px;
    --stats-table-min: 560px;
    --focus-ring: 2px;
    --focus-offset: 2px;
    --transition-chip: 120ms ease;
    --transition-card: 120ms ease;
    --result-columns: repeat(4, minmax(0, 1fr));
    --filter-toggle-display: none;
    --filter-sheet-display: block;
    --filter-sheet-position: static;
    --filter-sheet-inset: auto;
    --filter-sheet-max-height: none;
    --filter-sheet-overflow: visible;
    --filter-sheet-transform: none;
    --filter-sheet-padding: 0;
    --filter-sheet-background: transparent;
    --filter-sheet-shadow: none;
    --filter-sheet-radius: 0;
    --filter-sheet-z: auto;
    --filter-sheet-open-transform: none;
    --filter-head-display: none;
    --result-meta-direction: row;
    --result-meta-align: baseline;
    --stats-intro-direction: row;
    --stats-intro-align: baseline;
  }

  @media (prefers-color-scheme: dark) {
    :root {
      --bg: #14181B;
      --surface: #1D2226;
      --ink: #E8ECEA;
      --ink-soft: #9AA5A0;
      --line: #313A3E;
      --accent: #36A47E;
      --accent-ink: #0D2119;
      --warn: #D39A40;
    }
  }

  @media (max-width: 1023px) {
    :root {
      --result-columns: repeat(3, minmax(0, 1fr));
    }
  }

  @media (max-width: 767px) {
    :root {
      --result-columns: repeat(2, minmax(0, 1fr));
    }
  }

  @media (max-width: 479px) {
    :root {
      --result-columns: minmax(0, 1fr);
      --filter-toggle-display: inline-flex;
      --filter-sheet-display: flex;
      --filter-sheet-position: fixed;
      --filter-sheet-inset: auto 0 0;
      --filter-sheet-max-height: 82vh;
      --filter-sheet-overflow: auto;
      --filter-sheet-transform: translateY(105%);
      --filter-sheet-padding: var(--space-5) var(--page-pad) var(--space-7);
      --filter-sheet-background: var(--surface);
      --filter-sheet-shadow: 0 -10px 28px rgb(0 0 0 / .18);
      --filter-sheet-radius: var(--radius) var(--radius) 0 0;
      --filter-sheet-z: 10;
      --filter-sheet-open-transform: translateY(0);
      --filter-head-display: flex;
      --result-meta-direction: column;
      --result-meta-align: flex-start;
      --stats-intro-direction: column;
      --stats-intro-align: flex-start;
      --plate-font-size: 30px;
    }
  }

  @media (max-width: 375px) {
    :root {
      --page-pad: 12px;
      --plate-h: 88px;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    :root {
      --transition-chip: none;
      --transition-card: none;
    }
  }
}

@layer reset {
  *, *::before, *::after {
    box-sizing: border-box;
  }

  html {
    min-width: 320px;
    background: var(--bg);
  }

  [hidden] {
    display: none !important;
  }

  body {
    min-width: 320px;
    min-height: 100vh;
    margin: 0;
    overflow-x: hidden;
    background: var(--bg);
    color: var(--ink);
    font-family: "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;
    line-height: 1.5;
  }

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

  button, a {
    -webkit-tap-highlight-color: transparent;
  }

  button {
    cursor: pointer;
  }

  a {
    color: inherit;
  }

  :where(button, a, input, select):focus-visible {
    outline: var(--focus-ring) solid var(--accent);
    outline-offset: var(--focus-offset);
  }
}

@layer components {
  .c-site-header {
    border-bottom: var(--border-hairline) solid var(--line);
    background: var(--bg);
  }

  .c-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--gap-l);
    min-height: var(--header-h);
    max-width: var(--content-max);
    margin: 0 auto;
    padding: 0 var(--page-pad);
  }

  .c-wordmark {
    color: var(--ink);
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: .12em;
    text-decoration: none;
    white-space: nowrap;
  }

  .c-nav {
    display: flex;
    align-items: center;
    gap: var(--space-4);
  }

  .c-nav-link {
    padding: var(--space-2) 0;
    color: var(--ink-soft);
    font-size: .9375rem;
    text-decoration: none;
    &[aria-current="page"] {
      color: var(--accent);
      font-weight: 700;
    }
  }

  .c-page-shell {
    width: min(100%, var(--content-max));
    margin: 0 auto;
    padding: var(--page-top) var(--page-pad) var(--space-6);
  }

  .c-search-section {
    display: grid;
    gap: var(--space-2);
    justify-items: center;
    margin-bottom: var(--gap-l);
  }

  .c-search-plate {
    position: relative;
    display: grid;
    place-items: center;
    width: min(100%, var(--search-max));
    min-height: var(--search-h);
    border: var(--plate-border) solid #16191D;
    border-radius: var(--radius-s);
    background: #FFFFFF;
    color: #16191D;
  }

  .c-search-screw {
    position: absolute;
    top: 50%;
    width: var(--screw-size);
    height: var(--screw-size);
    transform: translateY(-50%);
    border: var(--border-hairline) solid #5A6360;
    border-radius: 50%;
    background: #FFFFFF;
    &[data-side="left"] {
      left: var(--space-4);
    }

    &[data-side="right"] {
      right: var(--space-4);
    }
  }

  .c-filters {
    min-width: 0;
  }

  .c-search-input {
    position: absolute;
    z-index: 2;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
    padding: 0 var(--space-7);
    opacity: 1;
    background: transparent;
    color: transparent;
    -webkit-text-fill-color: transparent;
    caret-color: var(--accent);
    &::placeholder {
      color: transparent;
      opacity: 1;
      -webkit-text-fill-color: transparent;
    }
  }

  .c-search-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 0;
    max-width: calc(100% - var(--space-7));
    gap: var(--space-1);
    overflow: hidden;
    color: #16191D;
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: clamp(1.15rem, 5vw, 2rem);
    font-weight: 800;
    letter-spacing: .08em;
    white-space: nowrap;
  }

  .c-pattern-char {
    display: block;
    flex: 0 0 auto;
    width: calc(var(--search-glyph-height) * .5555556);
    height: var(--search-glyph-height);
    aspect-ratio: 100 / 180;
    color: inherit;
    text-align: center;
  }

  .c-pattern-slot {
    display: block;
    flex: 0 0 auto;
    width: calc(var(--search-glyph-height) * .5555556);
    min-width: 0;
    height: var(--search-glyph-height);
    border-bottom: var(--border-hairline) dashed #5A6360;
  }

  .c-pattern-elision {
    display: inline-block;
    min-width: 2ch;
    text-align: center;
  }

  .c-search-hint {
    margin: 0;
    color: var(--ink-soft);
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: .75rem;
  }

  .c-filter-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: var(--control-h);
    margin-bottom: var(--space-2);
  }

  .c-filter-toggle {
    display: var(--filter-toggle-display);
    align-items: center;
    gap: var(--space-2);
    min-height: var(--control-h);
    border: var(--border-hairline) solid var(--line);
    border-radius: var(--radius-s);
    padding: 0 var(--space-3);
    background: var(--surface);
  }

  .c-filter-count {
    display: inline-grid;
    place-items: center;
    min-width: 1.5em;
    min-height: 1.5em;
    border-radius: var(--radius-pill);
    background: var(--accent);
    color: var(--accent-ink);
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: .75rem;
  }

  .c-clear-button {
    min-height: var(--control-h);
    border: 0;
    padding: 0 var(--space-2);
    background: transparent;
    color: var(--accent);
    font-size: .875rem;
  }

  .c-filter-sheet {
    position: var(--filter-sheet-position);
    inset: var(--filter-sheet-inset);
    z-index: var(--filter-sheet-z);
    display: var(--filter-sheet-display);
    flex-direction: column;
    max-height: var(--filter-sheet-max-height);
    overflow: var(--filter-sheet-overflow);
    transform: var(--filter-sheet-transform);
    padding: var(--filter-sheet-padding);
    border-radius: var(--filter-sheet-radius);
    background: var(--filter-sheet-background);
    box-shadow: var(--filter-sheet-shadow);
  }

  .c-filter-sheet-head {
    display: var(--filter-head-display);
    align-items: center;
    justify-content: space-between;
    gap: var(--gap);
    margin-bottom: var(--space-4);
  }

  .c-filter-sheet-title {
    margin: 0;
    font-size: 1rem;
  }

  .c-filter-sheet-close {
    min-height: var(--control-h);
    border: 0;
    background: transparent;
    color: var(--accent);
  }

  .c-filter-groups {
    display: grid;
    gap: var(--gap);
  }

  .c-filter-group {
    min-width: 0;
    margin: 0;
    border: 0;
    padding: 0;
  }

  .c-filter-legend {
    margin-bottom: var(--space-2);
    color: var(--ink-soft);
    font-size: .8125rem;
    font-weight: 700;
  }

  .c-chip-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    min-width: 0;
  }

  .c-chip {
    min-height: var(--control-h);
    max-width: 100%;
    border: var(--border-hairline) solid var(--line);
    border-radius: var(--radius-s);
    padding: 0 var(--space-3);
    overflow: hidden;
    background: var(--surface);
    color: var(--ink);
    font-size: .875rem;
    text-overflow: ellipsis;
    white-space: nowrap;
    transition: background-color var(--transition-chip), border-color var(--transition-chip), color var(--transition-chip);
    &:hover,
    &[aria-checked="true"] {
      border-color: var(--accent);
      background: var(--accent);
      color: var(--accent-ink);
    }
  }

  .c-toggle-label {
    display: inline-flex;
    align-items: center;
    min-height: var(--control-h);
    gap: var(--space-2);
    color: var(--ink);
    font-size: .875rem;
  }

  .c-toggle-input {
    width: 1rem;
    height: 1rem;
    accent-color: var(--accent);
  }

  .c-result-meta {
    display: flex;
    align-items: var(--result-meta-align);
    flex-direction: var(--result-meta-direction);
    justify-content: space-between;
    gap: var(--gap);
    margin: var(--gap-l) 0 var(--gap);
    color: var(--ink-soft);
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: .8125rem;
  }

  .c-result-count {
    color: var(--ink);
  }

  .c-result-grid {
    display: grid;
    grid-template-columns: var(--result-columns);
    gap: var(--gap);
  }

  .c-plate-card {
    display: grid;
    gap: var(--space-3);
    min-width: 0;
    min-height: var(--card-min-h);
    border: var(--border-hairline) solid var(--line);
    border-radius: var(--radius);
    padding: var(--space-3);
    background: var(--surface);
    box-shadow: var(--shadow-card);
    transition: transform var(--transition-card), box-shadow var(--transition-card);
    &:hover {
      transform: translateY(calc(var(--card-lift) * -1));
      box-shadow: var(--shadow-card-hover);
    }
  }

  .c-card-station {
    justify-self: start;
    max-width: 100%;
    border-radius: var(--radius-s);
    padding: var(--space-1) var(--space-2);
    overflow: hidden;
    background: var(--bg);
    color: var(--ink-soft);
    font-size: .75rem;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .c-plate-copy {
    display: grid;
    place-items: center;
    width: 100%;
    min-width: 0;
    min-height: var(--plate-h);
    border: 0;
    padding: var(--space-2);
    background: transparent;
  }

  .c-plate-glyph {
    display: flex;
    align-items: center;
    justify-content: center;
    place-items: center;
    width: min(100%, var(--plate-max));
    min-height: var(--plate-h);
    border: var(--plate-border) solid #16191D;
    border-radius: var(--radius-s);
    padding: var(--space-2);
    overflow: hidden;
    background: #FFFFFF;
    color: #16191D;
    font-size: var(--plate-font-size);
    letter-spacing: var(--plate-letter-spacing);
    line-height: 1;
    text-overflow: clip;
    white-space: nowrap;
    &[data-shape="long"] {
      --plate-glyph-height: calc(var(--plate-h) * .44);
    }
    &[data-shape="short"] {
      --plate-letter-spacing: .13em;
    }
  }

  .c-plate-character {
    display: block;
    flex: 0 0 auto;
    width: calc(var(--plate-glyph-height) * .5555556);
    height: var(--plate-glyph-height);
    aspect-ratio: 100 / 180;
    color: inherit;
  }

  .c-plate-fallback {
    font-family: "Arial Narrow", "Roboto Condensed", "Helvetica Neue", sans-serif;
    font-stretch: condensed;
    font-weight: 900;
  }

  .c-card-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    min-height: var(--space-5);
  }

  .c-update {
    color: var(--ink-soft);
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: .75rem;
  }

  .c-stale {
    border-radius: var(--radius-s);
    padding: var(--space-1) var(--space-2);
    background: var(--warn);
    color: #FFFFFF;
  }

  .c-load-more {
    display: block;
    min-height: var(--control-h);
    margin: var(--gap-l) auto 0;
    border: var(--border-hairline) solid var(--accent);
    border-radius: var(--radius-s);
    padding: 0 var(--space-5);
    background: transparent;
    color: var(--accent);
  }

  .c-state {
    display: grid;
    justify-items: center;
    gap: var(--space-3);
    padding: var(--space-7) var(--space-4);
    color: var(--ink-soft);
    text-align: center;
  }

  .c-state-message {
    margin: 0;
  }

  .c-site-footer {
    max-width: var(--content-max);
    margin: 0 auto;
    padding: var(--space-5) var(--page-pad) var(--space-6);
    border-top: var(--border-hairline) solid var(--line);
    color: var(--ink-soft);
    font-size: .75rem;
  }

  .c-stats-intro {
    display: flex;
    align-items: var(--stats-intro-align);
    flex-direction: var(--stats-intro-direction);
    justify-content: space-between;
    gap: var(--gap);
    margin-bottom: var(--gap-l);
  }

  .c-page-title {
    margin: 0;
    font-size: clamp(1.35rem, 3vw, 1.75rem);
  }

  .c-stats-updated {
    color: var(--ink-soft);
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: .75rem;
  }

  .c-stats-section {
    margin-top: var(--gap-l);
    border: var(--border-hairline) solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
  }

  .c-stats-section-title {
    margin: 0;
    padding: var(--space-4) var(--space-4) var(--space-3);
    font-size: 1rem;
  }

  .c-stats-table-wrap {
    width: 100%;
    overflow-x: auto;
  }

  .c-stats-table {
    width: 100%;
    min-width: var(--stats-table-min);
    border-collapse: collapse;
    font-size: .875rem;
    & th,
    & td {
      padding: var(--space-3) var(--space-4);
      border-top: var(--border-hairline) solid var(--line);
      text-align: left;
      vertical-align: middle;
    }

    & th {
      color: var(--ink-soft);
      font-size: .75rem;
      font-weight: 700;
    }
  }

  .c-table-number {
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    text-align: right;
    white-space: nowrap;
  }

  .c-bar-track {
    width: 100%;
    height: var(--space-2);
    overflow: hidden;
    border-radius: var(--radius-pill);
    background: var(--bg);
  }

  .c-bar-fill {
    width: var(--bar-size, 0%);
    height: 100%;
    border-radius: inherit;
    background: var(--accent);
  }
}

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

  .page-main {
    min-height: 60vh;
  }

  .page-stats {
    --page-top: var(--space-6);
  }

  body[data-filter-open="true"] {
    --filter-sheet-transform: var(--filter-sheet-open-transform);
    overflow: hidden;
  }

  body[data-filter-open="true"]::before {
    position: fixed;
    z-index: 9;
    inset: 0;
    content: "";
    background: rgb(0 0 0 / .38);
  }

}