/* Tacit website. Colors and type follow the app (pixel-perfect-capture/src/styles.css). */

:root {
  --background: oklch(0.975 0.004 85);
  --foreground: oklch(0.22 0.01 260);
  --card: oklch(1 0 0);
  --primary: oklch(0.32 0.04 250);
  --primary-hover: oklch(0.4 0.045 250);
  --primary-foreground: oklch(0.98 0 0);
  --secondary: oklch(0.95 0.005 85);
  --muted: oklch(0.955 0.004 85);
  --muted-foreground: oklch(0.48 0.01 260);
  --accent: oklch(0.94 0.01 85);
  --border: oklch(0.91 0.005 85);
  --ring: oklch(0.6 0.03 250);
  --success: oklch(0.52 0.13 155);
  --warning: oklch(0.72 0.14 70);
  --destructive: oklch(0.55 0.2 27);
  --pill: oklch(0.16 0.004 260);
  --pill-raised: oklch(0.23 0.005 260);
  --pill-foreground: oklch(0.97 0 0);
  --pill-muted: oklch(0.72 0.005 260);
  --pill-border: oklch(1 0 0 / 9%);
  --signal: oklch(0.66 0.21 25);
  --ease-morph: cubic-bezier(0.32, 0.72, 0, 1);

  --font-sans: "Geist", ui-sans-serif, system-ui, sans-serif;
  --font-display: "Instrument Serif", ui-serif, Georgia, serif;
  --font-mono: "Geist Mono", ui-monospace, monospace;
  --radius: 0.5rem;
  --max: 72rem;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

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

body {
  margin: 0;
  background: var(--background);
  color: var(--foreground);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "ss01", "cv11";
}

h1,
h2,
h3 {
  text-wrap: balance;
  margin: 0;
}

p {
  margin: 0;
  text-wrap: pretty;
}

a {
  color: var(--primary);
  text-underline-offset: 3px;
}

a:hover {
  color: var(--primary-hover);
}

:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 3px;
  border-radius: 4px;
}

img,
svg {
  display: block;
  max-width: 100%;
}

code,
kbd {
  font-family: var(--font-mono);
  font-size: 0.875em;
}

kbd {
  display: inline-block;
  min-width: 1.5em;
  padding: 0 0.35em;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: var(--card);
  text-align: center;
  line-height: 1.5;
}

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 100;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  background: var(--pill);
  color: var(--pill-foreground);
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
  color: var(--pill-foreground);
}

.wrap {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(0.975 0.004 85 / 85%);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 200ms ease;
}

.site-header.scrolled {
  border-bottom-color: var(--border);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 4rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--foreground);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.brand:hover {
  color: var(--foreground);
}

.brand-mark {
  width: 1.75rem;
  height: 1.75rem;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 400;
  line-height: 1;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.9rem;
}

.nav a {
  color: var(--muted-foreground);
  text-decoration: none;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--foreground);
}

.nav a.btn-primary,
.nav a.btn-primary:hover {
  color: var(--pill-foreground);
}

.nav .nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

@media (max-width: 52rem) {
  .nav .nav-links {
    display: none;
  }
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0.6rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color 160ms ease,
    transform 160ms var(--ease-morph),
    box-shadow 160ms ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn svg {
  width: 1.05em;
  height: 1.05em;
  flex: none;
}

.btn-primary {
  background: var(--pill);
  color: var(--pill-foreground);
  box-shadow:
    0 0 0 1px oklch(1 0 0 / 10%) inset,
    0 4px 14px oklch(0 0 0 / 18%);
}

.btn-primary:hover {
  background: var(--pill-raised);
  color: var(--pill-foreground);
}

.btn-secondary {
  background: var(--card);
  color: var(--foreground);
  border-color: var(--border);
}

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

.btn-small {
  min-height: 2.25rem;
  padding: 0.35rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  min-height: 3.25rem;
  padding: 0.75rem 1.6rem;
  font-size: 1.02rem;
}

/* ---------- Type helpers ---------- */

.eyebrow {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted-foreground);
}

.display {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.04;
}

.section {
  padding-block: clamp(4rem, 9vw, 7rem);
}

.section-head {
  max-width: 42rem;
  margin-bottom: clamp(2.25rem, 5vw, 3.5rem);
}

.section-head h2 {
  margin-top: 0.75rem;
  font-size: clamp(2.25rem, 5vw, 3.4rem);
}

.section-head p {
  margin-top: 1rem;
  color: var(--muted-foreground);
  font-size: 1.08rem;
}

.section-alt {
  background: var(--card);
  border-block: 1px solid var(--border);
}

/* ---------- Hero ---------- */

.hero {
  padding-block: clamp(3rem, 8vw, 6rem) clamp(3.5rem, 8vw, 6rem);
  overflow: hidden;
}

.hero .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

@media (max-width: 60rem) {
  .hero .wrap {
    grid-template-columns: minmax(0, 1fr);
  }
}

.hero h1 {
  margin-top: 1rem;
  font-size: clamp(3rem, 7.4vw, 5.4rem);
}

.hero h1 em {
  font-style: italic;
  color: var(--primary);
}

.hero .lede {
  margin-top: 1.4rem;
  max-width: 34rem;
  font-size: 1.15rem;
  color: var(--muted-foreground);
}

.download-block {
  margin-top: 2rem;
}

.download-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.download-note {
  margin-top: 0.85rem;
  font-size: 0.85rem;
  color: var(--muted-foreground);
}

.demo-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.1rem;
  font-size: 0.85rem;
  color: var(--muted-foreground);
}

.demo-row > span {
  flex-basis: 100%;
}

.demo-row .btn svg {
  width: 0.85em;
  height: 0.85em;
  opacity: 0.6;
}

.other-platforms {
  margin-top: 0.6rem;
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.other-platforms ul {
  display: inline;
  list-style: none;
  margin: 0;
  padding: 0;
}

.other-platforms li {
  display: inline;
}

.other-platforms li + li::before {
  content: "·";
  margin-inline: 0.45rem;
  color: var(--border);
}

/* ---------- Product mockup (CSS only) ---------- */

.mock {
  position: relative;
  padding-bottom: 3.25rem;
}

.mock-window {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--card);
  box-shadow:
    0 1px 0 oklch(1 0 0) inset,
    0 30px 60px -20px oklch(0.3 0.03 250 / 25%),
    0 12px 24px -12px oklch(0 0 0 / 12%);
  overflow: hidden;
  font-size: 0.8rem;
}

.mock-bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 0.9rem;
  border-bottom: 1px solid var(--border);
  background: var(--muted);
}

.mock-bar span {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: var(--border);
}

.mock-bar strong {
  margin-left: 0.6rem;
  font-weight: 500;
  color: var(--muted-foreground);
}

.mock-body {
  display: grid;
  grid-template-columns: 9.5rem minmax(0, 1fr);
  min-height: 19rem;
}

.mock-list {
  border-right: 1px solid var(--border);
  padding: 0.6rem;
  display: grid;
  align-content: start;
  gap: 0.3rem;
}

.mock-list div {
  padding: 0.45rem 0.55rem;
  border-radius: 6px;
  color: var(--muted-foreground);
  line-height: 1.3;
}

.mock-list div b {
  display: block;
  color: var(--foreground);
  font-weight: 500;
}

.mock-list .active {
  background: var(--accent);
}

.mock-detail {
  padding: 1rem 1.1rem;
  display: grid;
  align-content: start;
  gap: 0.8rem;
}

.mock-detail h3 {
  font-size: 0.95rem;
  font-weight: 600;
}

.mock-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
}

.mock-field {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.4rem 0.55rem;
  line-height: 1.3;
}

.mock-field small {
  display: block;
  font-size: 0.68rem;
  color: var(--muted-foreground);
}

.mock-field.changed {
  border-color: oklch(0.6 0.13 155 / 60%);
  background: oklch(0.6 0.13 155 / 7%);
}

.mock-field .shielded {
  display: inline-block;
  width: 7.5rem;
  max-width: 100%;
  height: 0.8rem;
  vertical-align: middle;
  border-radius: 3px;
  background: repeating-linear-gradient(
    -45deg,
    oklch(0.8 0.005 260),
    oklch(0.8 0.005 260) 4px,
    oklch(0.86 0.005 260) 4px,
    oklch(0.86 0.005 260) 8px
  );
}

.mock-actions {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.mock-actions span {
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted-foreground);
}

.mock-actions span.go {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--primary-foreground);
}

.mock-bubble {
  position: absolute;
  right: -0.75rem;
  bottom: 5.25rem;
  max-width: 15.5rem;
  padding: 0.75rem 0.9rem;
  border-radius: 14px 14px 4px 14px;
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: 0 16px 30px -12px oklch(0 0 0 / 22%);
  font-size: 0.85rem;
  line-height: 1.4;
  animation: rise 700ms 500ms var(--ease-morph) both;
}

.mock-bubble small {
  display: block;
  margin-bottom: 0.2rem;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-foreground);
}

@media (max-width: 36rem) {
  .mock-body {
    grid-template-columns: minmax(0, 1fr);
  }
  .mock-list {
    display: none;
  }
  .mock-bubble {
    position: static;
    margin: 0.75rem 0 0 auto;
  }
}

.pill {
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.55rem 0.6rem 0.55rem 0.9rem;
  border-radius: 999px;
  background: var(--pill);
  color: var(--pill-foreground);
  border: 1px solid var(--pill-border);
  box-shadow: 0 10px 30px oklch(0 0 0 / 30%);
  font-size: 0.8rem;
  white-space: nowrap;
  animation: rise 700ms 200ms var(--ease-morph) both;
}

.pill .waves {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  height: 1rem;
}

.pill .waves i {
  width: 3px;
  height: 100%;
  border-radius: 999px;
  background: var(--pill-foreground);
  animation: wave 1.1s ease-in-out infinite;
}

.pill .waves i:nth-child(2) {
  animation-delay: 0.15s;
}

.pill .waves i:nth-child(3) {
  animation-delay: 0.3s;
}

.pill .waves i:nth-child(4) {
  animation-delay: 0.45s;
}

.pill .tally {
  color: var(--pill-muted);
}

.pill .tally b {
  color: var(--pill-foreground);
  font-weight: 500;
}

.pill .shield {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 50%;
  background: var(--pill-raised);
}

.pill .shield svg {
  width: 0.95rem;
  height: 0.95rem;
}

@media (max-width: 36rem) {
  .pill .tally-long {
    display: none;
  }
}

@keyframes wave {
  0%,
  100% {
    transform: scaleY(0.35);
  }
  50% {
    transform: scaleY(1);
  }
}

@keyframes rise {
  from {
    opacity: 0;
    translate: 0 8px;
    filter: blur(2px);
  }
  to {
    opacity: 1;
    translate: 0 0;
    filter: none;
  }
}

/* ---------- Problem ---------- */

.problem-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

@media (max-width: 52rem) {
  .problem-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.problem-quote {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.6vw, 2.5rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.problem-quote cite {
  display: block;
  margin-top: 1rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-style: normal;
  color: var(--muted-foreground);
}

.problem-points {
  display: grid;
  gap: 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.problem-points li {
  padding-left: 1.25rem;
  border-left: 2px solid var(--border);
}

.problem-points strong {
  display: block;
  font-weight: 600;
}

.problem-points span {
  color: var(--muted-foreground);
}

/* ---------- Steps ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

@media (max-width: 52rem) {
  .steps {
    grid-template-columns: minmax(0, 1fr);
  }
}

.step {
  position: relative;
  padding: 1.6rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--background);
}

.step-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted-foreground);
}

.step h3 {
  margin-top: 0.4rem;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 2.2rem;
  line-height: 1.1;
}

.step p {
  margin-top: 0.6rem;
  color: var(--muted-foreground);
}

.step-visual {
  margin-top: 1.25rem;
  padding: 0.9rem;
  border-radius: 10px;
  background: var(--card);
  border: 1px solid var(--border);
  font-size: 0.8rem;
  line-height: 1.45;
  min-height: 7.5rem;
}

.event {
  display: flex;
  gap: 0.5rem;
  padding: 0.25rem 0;
}

.event time {
  font-family: var(--font-mono);
  color: var(--muted-foreground);
  flex: none;
}

.map-node {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.5rem;
  border-radius: 6px;
}

.map-node + .map-node {
  margin-top: 0.3rem;
}

.map-node .dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--primary);
  flex: none;
}

.map-node.judgment .dot {
  background: var(--warning);
}

.map-node.guard {
  margin-left: 1.05rem;
  background: oklch(0.72 0.14 70 / 10%);
  color: oklch(0.38 0.08 60);
}

.tutor-line {
  padding: 0.5rem 0.65rem;
  border-radius: 8px;
  background: var(--pill);
  color: var(--pill-foreground);
}

.tutor-lock {
  margin-top: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--muted-foreground);
}

.tutor-lock svg {
  width: 0.9rem;
  height: 0.9rem;
}

/* ---------- Features ---------- */

.feature-groups {
  display: grid;
  gap: clamp(2.5rem, 5vw, 3.5rem);
}

.feature-group {
  display: grid;
  grid-template-columns: minmax(0, 15rem) minmax(0, 1fr);
  gap: clamp(1.25rem, 4vw, 3rem);
  padding-top: clamp(2rem, 4vw, 2.75rem);
  border-top: 1px solid var(--border);
}

.feature-group:first-child {
  border-top: 0;
  padding-top: 0;
}

@media (max-width: 52rem) {
  .feature-group {
    grid-template-columns: minmax(0, 1fr);
  }
}

.feature-group h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.9rem;
  line-height: 1.1;
}

.feature-group > div > p {
  margin-top: 0.5rem;
  color: var(--muted-foreground);
  font-size: 0.95rem;
}

.features {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (max-width: 40rem) {
  .features {
    grid-template-columns: minmax(0, 1fr);
  }
}

.feature {
  padding: 1.25rem 1.3rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
}

.section-alt .feature {
  background: var(--background);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 8px;
  background: var(--pill);
  color: var(--pill-foreground);
}

.feature-icon svg {
  width: 1.05rem;
  height: 1.05rem;
}

.feature h4 {
  margin: 0.85rem 0 0;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.005em;
}

.feature p {
  margin-top: 0.35rem;
  color: var(--muted-foreground);
  font-size: 0.93rem;
}

.badge {
  display: inline-block;
  margin-left: 0.4rem;
  padding: 0.05rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--muted);
  color: var(--muted-foreground);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  vertical-align: 0.15em;
}

/* ---------- Trust ---------- */

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

@media (max-width: 60rem) {
  .trust-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 40rem) {
  .trust-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.trust-card {
  padding: 1.4rem;
  border-radius: 14px;
  background: var(--pill);
  color: var(--pill-foreground);
  border: 1px solid var(--pill-border);
}

.trust-card h3 {
  font-size: 1rem;
  font-weight: 600;
}

.trust-card p {
  margin-top: 0.45rem;
  color: var(--pill-muted);
  font-size: 0.93rem;
}

.trust-card kbd {
  background: var(--pill-raised);
  color: var(--pill-foreground);
  border-color: var(--pill-border);
}

.trust-dark {
  background: oklch(0.13 0.004 260);
  color: var(--pill-foreground);
}

.trust-dark .eyebrow,
.trust-dark .section-head p {
  color: var(--pill-muted);
}

.trust-dark a {
  color: var(--pill-foreground);
}

/* ---------- Getting started ---------- */

.start-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (max-width: 52rem) {
  .start-strip {
    grid-template-columns: minmax(0, 1fr);
  }
}

.start-strip li {
  display: flex;
  gap: 1rem;
  padding: 1.4rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--card);
}

.start-strip .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  flex: none;
  border-radius: 50%;
  background: var(--pill);
  color: var(--pill-foreground);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.start-strip h3 {
  font-size: 1rem;
  font-weight: 600;
}

.start-strip p {
  margin-top: 0.3rem;
  color: var(--muted-foreground);
  font-size: 0.93rem;
}

/* ---------- Downloads ---------- */

.platforms {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

@media (max-width: 52rem) {
  .platforms {
    grid-template-columns: minmax(0, 1fr);
  }
}

.platform {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--background);
}

.platform.is-yours {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary);
}

.platform h3 {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.1rem;
  font-weight: 600;
}

.platform h3 svg {
  width: 1.3rem;
  height: 1.3rem;
}

.platform p {
  color: var(--muted-foreground);
  font-size: 0.9rem;
}

.platform .yours {
  display: none;
  margin-left: auto;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--primary);
}

.platform.is-yours .yours {
  display: inline;
}

.platform-steps {
  display: grid;
  gap: 0.45rem;
  margin: 0;
  padding-left: 1.2rem;
  font-size: 0.875rem;
}

.platform-steps li::marker {
  color: var(--muted-foreground);
  font-family: var(--font-mono);
  font-size: 0.8em;
}

.platform-steps code,
.platform-tip code {
  padding: 0.05rem 0.3rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--muted);
  overflow-wrap: anywhere;
}

.platform .platform-tip {
  font-size: 0.8rem;
}

.platform .links {
  display: grid;
  gap: 0.5rem;
  margin-top: auto;
}

.platform .file {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted-foreground);
  word-break: break-all;
}

/* ---------- FAQ ---------- */

.faq {
  max-width: 50rem;
}

.faq details {
  border-bottom: 1px solid var(--border);
}

.faq summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.15rem 0;
  font-weight: 500;
  font-size: 1.05rem;
  cursor: pointer;
  list-style: none;
}

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

.faq summary::after {
  content: "";
  width: 0.6rem;
  height: 0.6rem;
  flex: none;
  border-right: 1.5px solid var(--muted-foreground);
  border-bottom: 1.5px solid var(--muted-foreground);
  transform: rotate(45deg) translateY(-2px);
  transition: transform 200ms var(--ease-morph);
}

.faq details[open] summary::after {
  transform: rotate(-135deg) translateY(-2px);
}

.faq .answer {
  padding-bottom: 1.25rem;
  color: var(--muted-foreground);
}

.faq .answer p + p,
.faq .answer p + ul,
.faq .answer ul + p {
  margin-top: 0.6rem;
}

.faq .answer ul {
  margin: 0;
  padding-left: 1.2rem;
}

.faq .answer strong {
  color: var(--foreground);
  font-weight: 500;
}

/* ---------- CTA + footer ---------- */

.cta {
  text-align: center;
}

.cta h2 {
  font-size: clamp(2.4rem, 6vw, 4rem);
}

.cta p {
  margin: 1rem auto 0;
  max-width: 34rem;
  color: var(--muted-foreground);
}

.cta .download-row {
  justify-content: center;
  margin-top: 2rem;
}

.site-footer {
  padding-block: 2.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.site-footer ul {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer a {
  color: var(--muted-foreground);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--foreground);
}

/* ---------- Install guide page ---------- */

.doc {
  display: grid;
  grid-template-columns: 14rem minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  padding-block: clamp(2.5rem, 6vw, 4.5rem) 5rem;
}

@media (max-width: 56rem) {
  .doc {
    grid-template-columns: minmax(0, 1fr);
  }
  .doc-toc {
    display: none;
  }
}

.doc-toc {
  position: sticky;
  top: 5.5rem;
  align-self: start;
  font-size: 0.875rem;
}

.doc-toc ol {
  margin: 0.75rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.45rem;
}

.doc-toc a {
  color: var(--muted-foreground);
  text-decoration: none;
}

.doc-toc a:hover {
  color: var(--foreground);
}

.prose {
  max-width: 44rem;
}

.prose h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.6rem, 6vw, 3.8rem);
  line-height: 1.05;
  letter-spacing: -0.015em;
}

.prose .lede {
  margin-top: 1rem;
  font-size: 1.12rem;
  color: var(--muted-foreground);
}

.prose h2 {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 2rem;
  line-height: 1.15;
}

.prose h3 {
  margin-top: 1.75rem;
  font-size: 1.08rem;
  font-weight: 600;
}

.prose p,
.prose ul,
.prose ol,
.prose table,
.prose .callout {
  margin-top: 0.85rem;
}

.prose ul,
.prose ol {
  padding-left: 1.3rem;
}

.prose li + li {
  margin-top: 0.35rem;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.prose th,
.prose td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.prose th {
  font-weight: 600;
  background: var(--muted);
}

.prose code {
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  background: var(--muted);
  border: 1px solid var(--border);
}

.prose pre {
  margin-top: 0.85rem;
  padding: 0.9rem 1rem;
  border-radius: 10px;
  background: var(--pill);
  color: var(--pill-foreground);
  overflow-x: auto;
}

.prose pre code {
  padding: 0;
  background: none;
  border: 0;
  color: inherit;
}

.callout {
  padding: 1rem 1.15rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
}

.callout strong {
  font-weight: 600;
}

.table-scroll {
  overflow-x: auto;
}