:root {
  --bg: #e8ebf0;
  --bg-deep: #d9dee6;
  --ink: #12141a;
  --ink-soft: #4a5160;
  --line: #c5ccd8;
  --surface: #f4f6f9;
  --accent: #0b6b6e;
  --accent-ink: #f0fafa;
  --pill: #dde2ea;
  --viewer: #cfd5df;
  --max: 1080px;
  --radius: 3px;
}

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

html {
  color-scheme: light;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  font-family: "DM Sans", system-ui, sans-serif;
  font-optical-sizing: auto;
  color: var(--ink);
  background-color: var(--bg);
  background-image:
    linear-gradient(180deg, #dfe4ec 0%, transparent 220px),
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 11px,
      rgba(18, 20, 26, 0.03) 11px,
      rgba(18, 20, 26, 0.03) 12px
    );
  line-height: 1.5;
  -webkit-tap-highlight-color: rgba(11, 107, 110, 0.12);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
.btn {
  font: inherit;
  cursor: pointer;
}

#app {
  max-width: var(--max);
  margin: 0 auto;
  padding:
    max(1.25rem, env(safe-area-inset-top))
    max(1rem, env(safe-area-inset-right))
    max(2.5rem, env(safe-area-inset-bottom))
    max(1rem, env(safe-area-inset-left));
}

@media (min-width: 641px) {
  #app {
    padding:
      max(2rem, env(safe-area-inset-top))
      max(1.25rem, env(safe-area-inset-right))
      max(4rem, env(safe-area-inset-bottom))
      max(1.25rem, env(safe-area-inset-left));
  }
}

.loading {
  color: var(--ink-soft);
  margin: 4rem 0;
}

/* ——— Home ——— */

.hero {
  padding: 1.5rem 0 2.5rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2rem;
}

.brand {
  font-family: "Instrument Serif", Georgia, serif;
  font-size: clamp(2.75rem, 8vw, 4.25rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0 0 0.75rem;
}

.brand em {
  font-style: italic;
  color: var(--accent);
}

.lede {
  max-width: 34rem;
  margin: 0;
  font-size: 1.05rem;
  color: var(--ink-soft);
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  background: var(--pill);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  text-transform: uppercase;
}

.pill.accent {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

.section-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 1rem;
}

/* ——— Method ——— */

.method {
  margin: 0 0 2.5rem;
  padding: 0 0 2.25rem;
  border-bottom: 1px solid var(--line);
}

.method-headline {
  font-family: "Instrument Serif", Georgia, serif;
  font-size: clamp(1.65rem, 3.5vw, 2.15rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 0.65rem;
  max-width: 28rem;
}

.method-lede {
  margin: 0 0 1.35rem;
  max-width: 36rem;
  color: var(--ink-soft);
  font-size: 1rem;
}

.method-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}

.method-col {
  padding: 1.15rem 1.25rem 1.3rem;
}

.method-col + .method-col {
  border-left: 1px solid var(--line);
}

.method-col-title {
  margin: 0 0 0.45rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.method-col-body {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ink-soft);
  line-height: 1.55;
}

@media (max-width: 640px) {
  .method-split {
    grid-template-columns: 1fr;
  }

  .method-col + .method-col {
    border-left: none;
    border-top: 1px solid var(--line);
  }
}

.method-tools {
  margin-top: 1.75rem;
}

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

.tool-card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.15rem 1.25rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.tool-title {
  margin: 0;
  font-family: "Instrument Serif", Georgia, serif;
  font-size: 1.35rem;
  font-weight: 400;
  line-height: 1.15;
}

.tool-body {
  margin: 0;
  flex: 1;
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.55;
}

.tool-cta {
  align-self: flex-start;
  margin-top: 0.35rem;
}

.tool-grid:has(.tool-card:only-child) {
  grid-template-columns: minmax(0, 28rem);
}

@media (max-width: 640px) {
  .tool-grid {
    grid-template-columns: 1fr;
  }
}

/* ——— Skills ——— */

.skills {
  margin: 0 0 2.5rem;
  padding: 0 0 2.25rem;
  border-bottom: 1px solid var(--line);
}

.install-box {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 0.85rem;
  margin: 0 0 1.35rem;
  padding: 0.85rem 1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.install-cmd {
  flex: 1 1 16rem;
  font-size: 0.86rem;
  overflow-x: auto;
  white-space: nowrap;
}

.install-copy {
  flex: 0 0 auto;
}

.skill-repo {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
}

.skill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: 1rem;
}

.skill-card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.15rem 1.25rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

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

.skill-slash {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.5rem;
  background: var(--pill);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
}

.skill-title {
  margin: 0;
  font-family: "Instrument Serif", Georgia, serif;
  font-size: 1.35rem;
  font-weight: 400;
  line-height: 1.15;
}

.skill-body {
  margin: 0;
  flex: 1;
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.55;
}

.skill-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 240px), 1fr));
  gap: 1rem;
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.15s ease, transform 0.15s ease;
  /* Let taps go to the card link; thumbnails don't steal gestures. */
  -webkit-touch-callout: none;
}

@media (hover: hover) and (pointer: fine) {
  .card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
  }
}

.card:focus-visible {
  border-color: var(--accent);
  outline: none;
}

.card-viewer {
  display: block;
  width: 100%;
  height: 200px;
  background: var(--viewer);
  --poster-color: transparent;
  pointer-events: none;
}

.card-body {
  padding: 0.9rem 1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  flex: 1;
}

.card-title {
  font-family: "Instrument Serif", Georgia, serif;
  font-size: 1.35rem;
  font-weight: 400;
  margin: 0;
  line-height: 1.15;
}

.card-blurb {
  margin: 0;
  font-size: 0.88rem;
  color: var(--ink-soft);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: auto;
  padding-top: 0.5rem;
}

/* ——— Detail ——— */

.detail-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.back {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  min-height: 44px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink-soft);
  border: none;
  background: transparent;
  padding: 0.35rem 0;
}

.back:hover {
  color: var(--accent);
}

.detail-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 1.5rem;
  align-items: start;
}

.viewer-shell {
  position: relative;
  background: var(--viewer);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 280px;
  touch-action: none;
}

.detail-viewer {
  display: block;
  width: 100%;
  height: min(62vh, 520px);
  background: var(--viewer);
}

.viewer-toolbar {
  position: absolute;
  top: 0.7rem;
  right: 0.7rem;
  z-index: 2;
  display: flex;
  gap: 0.4rem;
}

.viewer-toggle {
  min-height: 36px;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(244, 246, 249, 0.92);
  color: var(--ink);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  backdrop-filter: blur(6px);
}

.viewer-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.viewer-toggle.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

.detail-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem 1.5rem;
}

.detail-title {
  font-family: "Instrument Serif", Georgia, serif;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 400;
  margin: 0 0 0.75rem;
  line-height: 1.1;
}

.detail-blurb {
  margin: 0 0 1.25rem;
  color: var(--ink-soft);
  font-size: 1rem;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 1.1rem;
  border-radius: var(--radius);
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--bg);
  font-weight: 600;
  font-size: 0.9rem;
}

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

.btn.secondary {
  background: transparent;
  color: var(--ink);
}

.btn.secondary:hover {
  background: var(--bg-deep);
  border-color: var(--ink);
  color: var(--ink);
}

.hint {
  margin: 1rem 0 0;
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.hint-touch {
  display: none;
}

.site-footer {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.not-found {
  padding: 3rem 0;
}

.not-found h1 {
  font-family: "Instrument Serif", Georgia, serif;
  font-weight: 400;
  font-size: 2rem;
  margin: 0 0 0.75rem;
}

/* ——— Mobile polish ——— */

@media (max-width: 760px) {
  .detail-layout {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .detail-nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .detail-nav .meta-row {
    margin-top: 0;
  }

  .detail-viewer {
    height: min(52vh, 420px);
    height: min(52dvh, 420px);
  }

  .detail-panel {
    padding: 1.1rem 1.1rem 1.25rem;
  }

  .detail-actions {
    flex-direction: column;
  }

  .detail-actions .btn {
    width: 100%;
  }

  .hint-touch {
    display: block;
  }

  .site-footer {
    margin-top: 2rem;
  }
}

@media (max-width: 640px) {
  .hero {
    padding: 0.75rem 0 1.75rem;
    margin-bottom: 1.5rem;
  }

  .brand {
    font-size: clamp(2.25rem, 11vw, 3.25rem);
  }

  .lede {
    font-size: 0.98rem;
  }

  .method {
    margin-bottom: 1.75rem;
    padding-bottom: 1.75rem;
  }

  .method-col,
  .tool-card,
  .skill-card {
    padding: 1rem 1.05rem 1.15rem;
  }

  .tool-cta {
    width: 100%;
  }

  .card-viewer {
    height: 220px;
  }

  .grid {
    gap: 0.85rem;
  }
}

@media (max-width: 380px) {
  .pill {
    font-size: 0.7rem;
    padding: 0.18rem 0.45rem;
  }

  .card-blurb {
    -webkit-line-clamp: 2;
  }
}