:root {
  --bg: #c5cad1;
  --bg-deep: #9aa3ae;
  --ink: #12151a;
  --muted: #3a424c;
  --surface: rgba(245, 247, 250, 0.72);
  --line: rgba(18, 21, 26, 0.14);
  --accent: #c6ff1a;
  --accent-ink: #10140a;
  --danger: #b42318;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
  --display: 'Syne', system-ui, sans-serif;
  --radius: 2px;
  --lab-bg: #0b0d10;
  --lab-panel: #12151a;
  --lab-line: rgba(198, 255, 26, 0.14);
  --lab-text: #d7dde6;
  --lab-muted: #8b93a0;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.55;
  background:
    radial-gradient(120% 80% at 10% -10%, #e4e8ee 0%, transparent 55%),
    radial-gradient(90% 70% at 100% 20%, #aeb6c0 0%, transparent 50%),
    linear-gradient(165deg, var(--bg) 0%, var(--bg-deep) 100%);
  background-attachment: fixed;
}

body.modal-open {
  overflow: hidden;
}

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.07;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.top,
main,
.foot {
  position: relative;
  z-index: 1;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  max-width: 1120px;
  margin: 0 auto;
}

.logo {
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--ink);
}

nav {
  display: flex;
  gap: 1.25rem;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

nav a:hover {
  color: var(--ink);
}

.hero {
  min-height: calc(100vh - 4.5rem);
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-content: center;
  max-width: 1120px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

@media (min-width: 900px) {
  .hero {
    grid-template-columns: 1fr 1.05fr;
    align-items: center;
    gap: 3rem;
    padding-top: 1rem;
  }
}

.brand {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(3.5rem, 12vw, 7rem);
  line-height: 0.9;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
  animation: rise 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.5vw, 2.35rem);
  line-height: 1.15;
  margin: 0 0 0.85rem;
  max-width: 14ch;
  animation: rise 0.9s 0.08s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.lede {
  margin: 0 0 1.75rem;
  color: var(--muted);
  max-width: 36ch;
  animation: rise 0.9s 0.16s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  animation: rise 0.9s 0.24s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.btn {
  appearance: none;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.85rem 1.15rem;
  cursor: pointer;
  border-radius: var(--radius);
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn.primary {
  background: var(--accent);
  border-color: var(--accent-ink);
  color: var(--accent-ink);
  font-weight: 500;
}

.btn.ghost {
  background: transparent;
}

.btn.light {
  border-color: rgba(215, 221, 230, 0.35);
  color: var(--lab-text);
}

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

.hero-visual {
  min-height: 280px;
  animation: fade 1.2s 0.2s ease both;
}

.scope {
  width: 100%;
  height: 100%;
  min-height: 280px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(18, 21, 26, 0.06), rgba(18, 21, 26, 0.16)),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 47px,
      rgba(18, 21, 26, 0.06) 48px
    );
}

.scope canvas {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: top;
}

.panel {
  max-width: 1120px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
  border-top: 1px solid var(--line);
}

.panel h2 {
  font-family: var(--display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.section-lede {
  margin: 0 0 2rem;
  color: var(--muted);
  max-width: 48ch;
}

.dropzone {
  display: grid;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px dashed var(--ink);
  backdrop-filter: blur(8px);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.dropzone input[type='file'] {
  position: absolute;
  opacity: 0;
  width: 0.1px;
  height: 0.1px;
  overflow: hidden;
  z-index: -1;
}

.drop-label {
  display: grid;
  gap: 0.35rem;
  padding: 2.5rem 1rem;
  text-align: center;
  cursor: pointer;
  border: 1px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.dropzone.dragover .drop-label,
.drop-label:hover {
  border-color: var(--ink);
  background: rgba(198, 255, 26, 0.18);
}

.dropzone.has-file {
  border-style: solid;
  border-color: var(--ink);
  background: rgba(198, 255, 26, 0.1);
}

.drop-title {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.25rem;
}

.drop-meta {
  color: var(--muted);
  font-size: 0.8rem;
}

.file-chip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--ink);
  background: rgba(198, 255, 26, 0.28);
  font-size: 0.8rem;
}

.file-chip span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 500;
}

.chip-clear {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--ink);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  padding: 0 0.2rem;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: flex-end;
}

select {
  font-family: var(--mono);
  font-size: 0.8rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  border-radius: var(--radius);
}

.status {
  margin-top: 1rem;
  font-size: 0.85rem;
}

.status.error {
  color: var(--danger);
}

.status.busy::after {
  content: '';
  display: inline-block;
  width: 0.55em;
  height: 0.55em;
  margin-left: 0.5em;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 0.9s ease-in-out infinite;
}

.progress {
  margin-top: 0.75rem;
  height: 3px;
  background: rgba(18, 21, 26, 0.12);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #8aa812, var(--accent));
  transition: width 0.35s ease;
}

/* ── Modal lab ─────────────────────────────────────── */

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 1rem;
}

.modal[hidden] {
  display: none !important;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(80% 60% at 50% 0%, rgba(198, 255, 26, 0.08), transparent 55%),
    rgba(8, 10, 12, 0.72);
  backdrop-filter: blur(10px);
  animation: fade 0.25s ease both;
}

.modal-panel {
  position: relative;
  z-index: 1;
  width: min(1180px, 100%);
  max-height: min(92vh, 980px);
  display: flex;
  flex-direction: column;
  background:
    linear-gradient(165deg, #14181f 0%, var(--lab-bg) 45%, #0a0c0f 100%);
  border: 1px solid var(--lab-line);
  color: var(--lab-text);
  box-shadow:
    0 0 0 1px rgba(198, 255, 26, 0.05),
    0 40px 120px rgba(0, 0, 0, 0.55);
  animation: modalIn 0.35s cubic-bezier(0.22, 1, 0.36, 1) both;
  overflow: hidden;
}

.modal-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0%, rgba(198, 255, 26, 0.03) 50%, transparent 100%),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 3px,
      rgba(255, 255, 255, 0.01) 4px
    );
  opacity: 0.7;
}

.modal-top {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-start;
  justify-content: space-between;
  padding: 1.15rem 1.25rem;
  border-bottom: 1px solid var(--lab-line);
  background: rgba(18, 21, 26, 0.65);
}

.modal-kicker {
  margin: 0 0 0.25rem;
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
}

.modal-heading h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  letter-spacing: -0.02em;
  color: #fff;
}

.result-sub {
  margin: 0.3rem 0 0;
  color: var(--lab-muted);
  font-size: 0.78rem;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.modal-scroll {
  position: relative;
  overflow: auto;
  padding: 1.15rem 1.25rem 1.75rem;
  flex: 1;
}

.docs-panel {
  width: min(960px, 100%);
  max-height: min(94vh, 1040px);
}

.docs-viewer {
  position: relative;
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: #0d0f12;
}

.docs-viewer iframe {
  flex: 1;
  width: 100%;
  min-height: 72vh;
  border: none;
  background: #fff;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 0.55rem;
  margin-bottom: 1rem;
}

.metric {
  padding: 0.75rem 0.85rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(198, 255, 26, 0.12);
}

.metric span {
  display: block;
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--lab-muted);
}

.metric strong {
  font-family: var(--display);
  font-size: 1.2rem;
  font-weight: 700;
  display: block;
  line-height: 1.15;
  margin-top: 0.15rem;
  color: #fff;
}

.metric em {
  display: block;
  font-style: normal;
  font-size: 0.65rem;
  color: var(--lab-muted);
  margin-top: 0.12rem;
}

.plot-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  margin-bottom: 1.15rem;
}

@media (min-width: 900px) {
  .plot-grid {
    grid-template-columns: 1fr 1fr;
  }

  .plot-wide {
    grid-column: 1 / -1;
  }
}

.plot-card {
  border: 1px solid rgba(198, 255, 26, 0.12);
  background:
    linear-gradient(180deg, rgba(198, 255, 26, 0.04), transparent 40%),
    rgba(255, 255, 255, 0.02);
  padding: 0.65rem 0.65rem 0.35rem;
}

.plot-head {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: baseline;
  padding: 0.15rem 0.35rem 0.45rem;
}

.plot-head h3 {
  margin: 0;
  font-family: var(--display);
  font-size: 0.95rem;
  color: #fff;
}

.plot-head span {
  font-size: 0.65rem;
  color: var(--lab-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-align: right;
}

.plot {
  width: 100%;
  min-height: 260px;
}

.plot-wide .plot {
  min-height: 340px;
}

.music-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  margin-bottom: 1rem;
}

@media (min-width: 800px) {
  .music-grid {
    grid-template-columns: 0.95fr 1.05fr;
  }
}

.music-block {
  padding: 1rem 1.1rem 1.15rem;
  border: 1px solid rgba(198, 255, 26, 0.12);
  background: rgba(255, 255, 255, 0.02);
}

.music-block h4 {
  margin: 0 0 0.85rem;
  font-family: var(--display);
  font-size: 1rem;
  color: #fff;
}

.block-label {
  margin: 0.85rem 0 0.45rem;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--lab-muted);
}

.strip-label {
  margin-top: 0.25rem;
}

.key-name {
  display: block;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 2.8rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--accent);
}

.key-sub {
  display: block;
  margin-top: 0.35rem;
  color: var(--lab-muted);
  font-size: 0.75rem;
}

.scale-row,
.peaks-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.note-pill,
.peak-pill {
  display: inline-flex;
  flex-direction: column;
  gap: 0.1rem;
  padding: 0.4rem 0.55rem;
  border: 1px solid rgba(198, 255, 26, 0.18);
  min-width: 3.2rem;
  background: rgba(255, 255, 255, 0.02);
}

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

.note-pill strong,
.peak-pill strong {
  font-family: var(--display);
  font-size: 0.95rem;
}

.note-pill small,
.peak-pill small {
  color: var(--lab-muted);
  font-size: 0.65rem;
}

.note-pill.tonic small {
  color: var(--accent-ink);
  opacity: 0.7;
}

.mix-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.45rem;
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid rgba(198, 255, 26, 0.12);
}

.mix-stat span {
  display: block;
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--lab-muted);
}

.mix-stat strong {
  font-family: var(--display);
  font-size: 0.95rem;
  color: #fff;
}

.explain-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.explain-list li {
  padding-left: 0.85rem;
  border-left: 2px solid var(--accent);
  color: var(--lab-muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

.form-strip {
  display: flex;
  gap: 3px;
  min-height: 4.5rem;
  margin-bottom: 1rem;
  border: 1px solid rgba(198, 255, 26, 0.12);
  overflow: hidden;
}

.form-seg {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.2rem;
  padding: 0.55rem 0.65rem;
  min-width: 0;
  border-right: 1px solid rgba(198, 255, 26, 0.1);
  background: rgba(255, 255, 255, 0.03);
}

.form-seg:last-child {
  border-right: none;
}

.form-seg strong {
  font-family: var(--display);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.form-seg span {
  font-size: 0.65rem;
  color: var(--lab-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.form-drop {
  background: rgba(198, 255, 26, 0.18);
}

.form-build {
  background: rgba(168, 201, 26, 0.12);
}

.layers-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.55rem;
  margin-bottom: 0.75rem;
}

.layer-chip {
  display: grid;
  gap: 0.2rem;
  padding: 0.7rem 0.8rem;
  border: 1px solid rgba(198, 255, 26, 0.12);
  border-left-width: 3px;
  background: rgba(255, 255, 255, 0.02);
}

.layer-chip.presence-high {
  border-left-color: var(--accent);
}

.layer-chip.presence-medium {
  border-left-color: #8aa812;
}

.layer-chip.presence-low,
.layer-chip.presence-unknown {
  border-left-color: rgba(215, 221, 230, 0.3);
}

.layer-chip strong {
  font-family: var(--display);
  font-size: 0.9rem;
  text-transform: uppercase;
  color: #fff;
}

.layer-chip span {
  font-size: 0.68rem;
  color: var(--lab-muted);
}

.layer-chip em {
  font-style: normal;
  font-size: 0.72rem;
  color: var(--lab-text);
  opacity: 0.85;
}

.raw-wrap {
  margin-top: 1rem;
  border: 1px solid rgba(198, 255, 26, 0.12);
  background: rgba(0, 0, 0, 0.25);
}

.raw-wrap summary {
  cursor: pointer;
  padding: 0.85rem 1rem;
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.95rem;
  list-style: none;
  color: #fff;
}

.raw-wrap summary::-webkit-details-marker {
  display: none;
}

.raw-wrap[open] summary {
  border-bottom: 1px solid rgba(198, 255, 26, 0.12);
}

.output {
  margin: 0;
  max-height: 320px;
  overflow: auto;
  padding: 1.15rem;
  background: #07080a;
  color: #d7dde6;
  font-size: 0.72rem;
  line-height: 1.45;
}

.lab-busy {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: grid;
  place-items: center;
  background: rgba(8, 10, 12, 0.72);
  backdrop-filter: blur(6px);
}

.lab-busy[hidden] {
  display: none !important;
}

.lab-busy-inner {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--accent);
  background: var(--lab-panel);
  font-family: var(--display);
  font-weight: 700;
  color: #fff;
}

.lab-busy-inner p {
  margin: 0;
}

.busy-pulse {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 0.9s ease-in-out infinite;
}

.dna-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.dna-list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.25rem;
}

@media (min-width: 700px) {
  .dna-list li {
    grid-template-columns: 10rem 1fr;
    align-items: baseline;
  }
}

.dna-list strong {
  font-family: var(--display);
  font-size: 1.05rem;
}

.foot {
  max-width: 1120px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.75rem;
  border-top: 1px solid var(--line);
}

.foot-social {
  justify-content: center;
  padding: 2.25rem 1.5rem 3rem;
}

.foot code {
  color: var(--ink);
}

.foot-links {
  display: flex;
  align-items: center;
  gap: 1.35rem;
}

.foot-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  color: var(--ink);
  text-decoration: none;
  border: 1px solid var(--line);
  background: var(--surface);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.foot-icon:hover {
  transform: translateY(-2px);
  border-color: var(--ink);
  background: rgba(198, 255, 26, 0.18);
}

.foot-icon svg {
  width: 1.55rem;
  height: 1.55rem;
  fill: currentColor;
}

.foot-mail {
  font-size: 1.65rem;
  line-height: 1;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.35;
    transform: scale(0.85);
  }
  50% {
    opacity: 1;
    transform: scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* ── Open Source page ─────────────────────────────── */

.oss-main {
  max-width: 1120px;
  margin: 0 auto;
}

.oss-hero {
  padding-top: 2.5rem;
}

.oss-kicker {
  margin: 0 0 0.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.oss-hero h1 {
  font-family: var(--display);
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0 0 0.75rem;
}

.oss-lede {
  max-width: 52ch;
}

.repo-box {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  align-items: center;
  margin-top: 1.75rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--ink);
  background: rgba(198, 255, 26, 0.12);
}

.repo-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  width: 100%;
}

.repo-url {
  flex: 1;
  min-width: 0;
  font-size: 0.78rem;
  word-break: break-all;
  color: var(--ink);
}

.repo-copy {
  flex-shrink: 0;
}

.oss-section {
  padding-top: 3rem;
}

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

@media (min-width: 768px) {
  .oss-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.oss-card {
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--line);
  background: var(--surface);
}

.oss-card h3 {
  margin: 0 0 0.5rem;
  font-family: var(--display);
  font-size: 1.05rem;
}

.oss-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.55;
}

.oss-card code {
  font-size: 0.78rem;
  color: var(--ink);
}

.oss-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.oss-tags li {
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--line);
  font-size: 0.78rem;
  background: var(--surface);
}

.oss-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1.5rem;
  counter-reset: step;
}

.oss-steps li {
  counter-increment: step;
  padding-left: 2.5rem;
  position: relative;
}

.oss-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 1.75rem;
  height: 1.75rem;
  display: grid;
  place-items: center;
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.85rem;
  background: var(--accent);
  color: var(--accent-ink);
}

.oss-steps strong {
  display: block;
  margin-bottom: 0.35rem;
  font-family: var(--display);
}

.oss-steps pre {
  margin: 0.5rem 0 0;
  padding: 0.85rem 1rem;
  background: #12151a;
  color: #d7dde6;
  font-size: 0.72rem;
  line-height: 1.5;
  overflow-x: auto;
}

.oss-steps a {
  color: var(--ink);
}

.oss-areas {
  border-top: none;
}