:root {
  --paper: #f4f0e6;
  --paper-2: #ebe4d6;
  --card: #fffcf6;
  --ink: #1c1915;
  --muted: #5e574c;
  --line: #ddd4c4;
  --cinnabar: #9d341f;
  --cinnabar-bright: #c2412d;
  --pine: #1e4a42;
  --pine-soft: #e5f0ec;
  --indigo: #2c3d72;
  --bronze: #7a4e22;
  --gold: #8c6a32;
  --shadow: 0 1px 0 rgba(28, 25, 21, 0.04);
  --serif: "Iowan Old Style", Palatino, "Palatino Linotype", "Songti TC", "Source Han Serif TC", "Noto Serif TC", "PMingLiU", "Times New Roman", serif;
  --sans: "Avenir Next", "Segoe UI", "PingFang TC", "Hiragino Sans", "Noto Sans TC", sans-serif;
  --header-h: 4.25rem;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #141311;
    --paper-2: #1e1c18;
    --card: #232019;
    --ink: #f4efe6;
    --muted: #c2b9ab;
    --line: #3c362c;
    --cinnabar: #f0a090;
    --cinnabar-bright: #e07a68;
    --pine: #9ed8c9;
    --pine-soft: #1a2c28;
    --indigo: #c5d0f2;
    --bronze: #e2c09a;
    --gold: #e4c98a;
    --shadow: 0 1px 0 rgba(0, 0, 0, 0.3);
    color-scheme: dark;
  }
}

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

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  margin: 0;
  background:
    radial-gradient(1200px 500px at 90% -10%, rgba(194, 65, 45, 0.08), transparent 55%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.05rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--cinnabar);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--cinnabar-bright);
}

:focus-visible {
  outline: 2px solid var(--cinnabar-bright);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--ink);
  color: var(--paper);
  padding: 0.5rem 0.8rem;
  z-index: 20;
}

.skip:focus {
  top: 0.6rem;
}

.wrap {
  width: min(1140px, calc(100% - 2.4rem));
  margin-inline: auto;
  min-width: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  min-height: var(--header-h);
  flex-wrap: wrap;
  min-width: 0;
  max-width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: inherit;
  text-decoration: none;
  margin-right: auto;
}

.seal {
  width: 2.1rem;
  height: 2.1rem;
  display: grid;
  place-items: center;
  border: 1.5px solid var(--cinnabar-bright);
  color: var(--cinnabar);
  font-family: var(--serif);
  font-weight: 700;
  letter-spacing: 0;
  border-radius: 4px;
}

.wordmark {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.wordmark strong {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.wordmark span {
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.9rem;
  align-items: center;
  min-width: 0;
  max-width: 100%;
}

.nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.92rem;
}

.nav a:hover {
  color: var(--cinnabar);
  text-decoration: underline;
}

.lang {
  display: flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
}

.lang a,
.lang span {
  padding: 0.28rem 0.7rem;
  font-size: 0.82rem;
  text-decoration: none;
  color: var(--muted);
}

.lang .is-current {
  background: var(--ink);
  color: var(--paper);
}

.crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.4rem;
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.crumbs li {
  display: flex;
  gap: 0.4rem;
}

.crumbs li + li::before {
  content: "/";
  color: var(--line);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(240px, 0.7fr);
  gap: 2.5rem;
  align-items: end;
  padding: 3.2rem 0 2rem;
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--pine);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
}

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.08;
}

h1 {
  margin: 0;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  max-width: 14ch;
}

.lede {
  margin: 1.1rem 0 0;
  max-width: 42rem;
  font-size: 1.12rem;
  color: var(--ink);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.4rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: 999px;
  padding: 0.55rem 0.95rem;
  text-decoration: none;
  border: 1px solid var(--ink);
  color: var(--ink);
  font-size: 0.92rem;
}

.btn.primary {
  background: var(--ink);
  color: var(--paper);
}

.btn:hover {
  border-color: var(--cinnabar);
}

.btn.primary:hover {
  background: var(--cinnabar);
  border-color: var(--cinnabar);
  color: #fff;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.1rem 1.15rem 1rem;
  box-shadow: var(--shadow);
}

.panel ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

.panel li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.55rem 0;
  border-top: 1px solid var(--line);
  font-size: 0.95rem;
}

.panel li:first-child {
  border-top: 0;
}

.panel strong {
  font-variant-numeric: tabular-nums;
  font-family: var(--serif);
  font-size: 1.25rem;
}

.panel .label {
  color: var(--muted);
}

.checked {
  margin: 0.8rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.note,
.group,
.toolbar {
  margin-bottom: 1.2rem;
}

.note,
.group,
#catalog,
.card {
  scroll-margin-top: 6.5rem;
}

.note {
  background: var(--pine-soft);
  border-left: 3px solid var(--pine);
  padding: 0.95rem 1.05rem 1.05rem;
  border-radius: 0 12px 12px 0;
}

.note h2 {
  font-size: 1.2rem;
  margin: 0 0 0.45rem;
}

.note p {
  margin: 0.45rem 0 0;
  max-width: 68rem;
}

.group {
  background: transparent;
}

.group h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  margin: 0 0 0.6rem;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1rem;
  align-items: end;
  justify-content: space-between;
  padding: 0.4rem 0 0.8rem;
  position: sticky;
  top: var(--header-h);
  z-index: 5;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(10px);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.filters button {
  font: inherit;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  cursor: pointer;
}

.filters button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.search {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: min(100%, 260px);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.search input {
  font: inherit;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.55rem 0.7rem;
  font-size: 1rem;
}

.count {
  margin: 0;
  width: 100%;
  color: var(--muted);
  font-size: 0.88rem;
}

.group-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  border-top: 1px solid var(--ink);
  padding-top: 1rem;
  margin-bottom: 0.8rem;
}

.index {
  font-family: var(--serif);
  color: var(--muted);
  font-size: 0.95rem;
}

.group-intro {
  max-width: 46rem;
  margin: 0 0 1rem;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 0.9rem;
  margin-bottom: 2rem;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1rem;
  box-shadow: var(--shadow);
  min-height: 100%;
}

.card-top {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
}

.card img {
  width: 72px;
  height: 72px;
  border-radius: 16px;
  object-fit: cover;
  background: var(--paper-2);
  flex: none;
}

.kicker {
  margin: 0 0 0.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.badge {
  letter-spacing: 0.08em;
  border-radius: 999px;
  padding: 0.1rem 0.45rem;
  border: 1px solid currentColor;
}

.badge.new { color: var(--cinnabar); }
.badge.oss { color: var(--pine); }
.badge.ios { color: var(--indigo); }

.card h3 {
  margin: 0;
  font-size: 1.35rem;
}

.aka {
  margin: 0.15rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.blurb {
  margin: 0;
  flex: 1;
}

.meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.stores {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.store {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.32rem 0.7rem;
  border: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
  font-size: 0.88rem;
  background: var(--paper);
}

.store:hover {
  border-color: var(--cinnabar);
  color: var(--cinnabar);
}

.empty {
  padding: 1.5rem 0 2rem;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--ink);
  margin-top: 1rem;
  padding: 1.5rem 0 2.5rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 1.2rem;
}

.site-footer h2 {
  font-size: 1rem;
  margin: 0 0 0.4rem;
  color: var(--ink);
}

.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer li {
  margin: 0.25rem 0;
}

.fine {
  margin-top: 1.2rem;
  font-size: 0.8rem;
}

@media (max-width: 860px) {
  .hero,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: none;
  }

  .header-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    column-gap: 0.6rem;
  }

  .brand {
    margin-right: 0;
    min-width: 0;
    grid-column: 1;
    grid-row: 1;
  }

  .lang {
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
  }

  .nav {
    grid-column: 1 / -1;
    grid-row: 2;
    width: auto;
    order: 0;
    min-width: 0;
  }

  .toolbar {
    position: static;
  }

  .panel li {
    gap: 0.6rem;
  }

  .panel .label {
    min-width: 0;
  }
}

@media (max-width: 640px) {
  .wrap {
    width: min(1140px, calc(100% - 1.4rem));
  }

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

  .wordmark strong {
    font-size: 1rem;
  }

  .lang a,
  .lang span {
    padding: 0.28rem 0.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  * {
    transition: none !important;
  }
}

@media print {
  .site-header,
  .toolbar,
  .lang,
  .hero-actions {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }

  .card,
  .panel {
    break-inside: avoid;
  }

  a {
    color: black;
  }
}