/*
 * Holmes — landing site
 * Same visual language as the app: warm paper, ink, library green.
 * Tokens mirror mobile/src/design/tokens.ts.
 */

/* Self-hosted fonts (SIL Open Font License; see fonts/OFL-*.txt). Latin subset from Fontsource. */
@font-face {
  font-family: "Fraunces";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/fraunces-latin-400-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Fraunces";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("fonts/fraunces-latin-500-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Fraunces";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("fonts/fraunces-latin-600-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Fraunces";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/fraunces-latin-400-italic.woff2") format("woff2");
}

@font-face {
  font-family: "Fraunces";
  font-style: italic;
  font-weight: 500;
  font-display: swap;
  src: url("fonts/fraunces-latin-500-italic.woff2") format("woff2");
}

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/inter-latin-400-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("fonts/inter-latin-500-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("fonts/inter-latin-600-normal.woff2") format("woff2");
}

:root {
  color-scheme: light dark;

  --bg: #F6F1E7;
  --surface: #FFFDF8;
  --ink: #1E1B16;
  --ink-muted: #5C554A;
  --line: #E4DCCB;
  --line-strong: #CFC4AE;
  --accent: #2F4A3A;
  --accent-ink: #FFFDF8;
  --accent-wash: #E7E9DC;
  --lens: #FFFDF8;
  --focus: #2F4A3A;
  --glint: #FFFFFF;

  --serif: "Fraunces", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --measure: 36rem;
  --wide: 70rem;
  --gutter: clamp(1.25rem, 5vw, 3rem);
  --radius: 14px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14120F;
    --surface: #1E1B17;
    --ink: #EDE6D8;
    --ink-muted: #B9B0A0;
    --line: #332E27;
    --line-strong: #4A4339;
    --accent: #9CC3A8;
    --accent-ink: #14120F;
    --accent-wash: #1D2620;
    --lens: #1E1B17;
    --focus: #9CC3A8;
    --glint: rgb(237 230 216 / 0.3);
  }
}

/* ---------- Base ---------- */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: 2rem;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg);
  /* A whisper of paper grain. */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .45 0 0 0 0 .38 0 0 0 0 .28 0 0 0 1 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.16'/%3E%3C/svg%3E");
  background-blend-mode: multiply;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

@media (prefers-color-scheme: dark) {
  body {
    background-blend-mode: soft-light;
  }
}

main {
  flex: 1 0 auto;
}

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

h1,
h2,
h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-optical-sizing: auto;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0;
  text-wrap: balance;
}

p,
ul,
ol,
dl {
  margin: 0;
}

p {
  text-wrap: pretty;
}

a {
  color: var(--accent);
  text-decoration-line: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  text-decoration-color: color-mix(in srgb, currentColor 40%, transparent);
  transition: text-decoration-color 160ms ease;
}

a:hover {
  text-decoration-color: currentColor;
}

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

::selection {
  background: var(--accent);
  color: var(--accent-ink);
}

.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: -4rem;
  z-index: 10;
  padding: 0.6rem 1rem;
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: 999px;
  font-weight: 500;
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

.wrap {
  width: 100%;
  max-width: calc(var(--wide) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding-block: 1.75rem;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.wordmark svg {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--accent);
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  list-style: none;
  padding: 0;
}

.site-nav a {
  color: var(--ink-muted);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
}

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

.site-nav a[aria-current="page"] {
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.45em;
}

/* ---------- Shared type ---------- */

.overline {
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.rule {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 0;
}

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

.hero {
  padding-block: clamp(2.5rem, 8vw, 6rem) clamp(3.5rem, 9vw, 7rem);
}

.hero .wrap {
  display: grid;
  gap: clamp(2.5rem, 6vw, 4rem);
  align-items: center;
}

@media (min-width: 860px) {
  .hero .wrap {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
}

.hero h1 {
  font-size: clamp(3.75rem, 13vw, 7.5rem);
  font-weight: 500;
  line-height: 0.95;
  letter-spacing: -0.035em;
}

.tagline {
  margin-top: 1.25rem;
  font-family: var(--serif);
  font-size: clamp(1.5rem, 4.2vw, 2.25rem);
  font-style: italic;
  font-weight: 400;
  line-height: 1.2;
  color: var(--accent);
  letter-spacing: -0.01em;
}

.lede {
  margin-top: 1.75rem;
  max-width: 33rem;
  font-size: clamp(1.0625rem, 2.2vw, 1.1875rem);
  line-height: 1.7;
  color: var(--ink-muted);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
  margin-top: 2.25rem;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 3rem;
  padding: 0.75rem 1.4rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.2;
  text-decoration: none;
  box-shadow: 0 1px 0 rgb(0 0 0 / 0.04), 0 8px 24px -12px color-mix(in srgb, var(--accent) 70%, transparent);
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.button svg {
  width: 1.1rem;
  height: 1.1rem;
  flex: none;
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 1px 0 rgb(0 0 0 / 0.04), 0 12px 28px -12px color-mix(in srgb, var(--accent) 80%, transparent);
}

@media (max-width: 379px) {
  .button {
    padding-inline: 1.1rem;
    font-size: 0.9375rem;
    gap: 0.5rem;
  }
}

.button:focus-visible {
  outline-offset: 4px;
  border-radius: 999px;
}

@media (prefers-reduced-motion: reduce) {
  .button,
  a {
    transition: none;
  }

  .button:hover {
    transform: none;
  }
}

.fine {
  font-size: 0.9375rem;
  color: var(--ink-muted);
}

.hero-art {
  justify-self: center;
  width: min(100%, 26rem);
}

.hero-art svg {
  width: 100%;
  height: auto;
  overflow: visible;
}

/* Inline-SVG paints. Kept as simple class selectors so they also reach the
   <use> copies of the drawing (the magnified view inside the lens). */
.svg-ink {
  stroke: var(--ink);
}

.svg-ink-fill {
  fill: var(--ink);
}

.svg-accent {
  stroke: var(--accent);
}

.svg-lens {
  fill: var(--lens);
}

.svg-wash {
  fill: var(--accent-wash);
}

.svg-glint {
  stroke: var(--glint);
}

.hero-art figcaption {
  margin-top: 1rem;
  text-align: center;
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.9375rem;
  color: var(--ink-muted);
}

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

.features {
  padding-block: clamp(3.5rem, 9vw, 6.5rem);
  border-top: 1px solid var(--line);
}

.section-head {
  display: grid;
  gap: 0.75rem;
  max-width: 40rem;
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.section-head h2 {
  font-size: clamp(1.875rem, 5vw, 2.75rem);
  font-weight: 500;
  letter-spacing: -0.02em;
}

.feature-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 2.5rem;
  counter-reset: feature;
}

@media (min-width: 760px) {
  .feature-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(2rem, 4vw, 3.5rem);
  }
}

.feature {
  counter-increment: feature;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line-strong);
}

.feature::before {
  content: counter(feature, upper-roman) ".";
  display: block;
  margin-bottom: 1rem;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1rem;
  color: var(--accent);
}

.feature h3 {
  font-size: clamp(1.5rem, 3vw, 1.75rem);
  font-weight: 500;
  margin-bottom: 0.75rem;
}

.feature p {
  color: var(--ink-muted);
}

/* ---------- Casebook ---------- */

.casebook {
  padding-block: clamp(3.5rem, 9vw, 6.5rem);
  background: var(--surface);
  border-block: 1px solid var(--line);
}

.casebook .wrap {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
}

@media (min-width: 860px) {
  .casebook .wrap {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
  }
}

.casebook h2 {
  font-size: clamp(1.875rem, 5vw, 2.75rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-top: 0.75rem;
}

.casebook .intro p {
  margin-top: 1rem;
  color: var(--ink-muted);
  max-width: 28rem;
}

.notes {
  list-style: none;
  padding: 0;
  border-top: 1px solid var(--line);
}

.notes li {
  display: grid;
  grid-template-columns: 1.75rem minmax(0, 1fr);
  gap: 0.25rem 0.75rem;
  padding-block: 1.1rem;
  border-bottom: 1px solid var(--line);
}

.notes svg {
  grid-row: span 2;
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.3rem;
  color: var(--accent);
}

.notes strong {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.1875rem;
  line-height: 1.35;
}

.notes span {
  color: var(--ink-muted);
  font-size: 0.96875rem;
}

/* ---------- Holmes and Muse ---------- */

@media (max-width: 559px) {
  .site-nav .nav-wide {
    display: none;
  }
}

.companion {
  padding-block: clamp(3.5rem, 9vw, 6.5rem);
}

.section-head > p:not(.overline) {
  color: var(--ink-muted);
  max-width: 36rem;
}

.compare {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 760px) {
  .compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(1.25rem, 3vw, 2rem);
  }
}

.compare-card {
  display: grid;
  align-content: start;
  gap: 0.75rem;
  padding: clamp(1.5rem, 4vw, 2.25rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.compare-card.is-holmes {
  background: var(--accent-wash);
  border-color: var(--line-strong);
}

.compare-label {
  font-family: var(--serif);
  font-style: italic;
  color: var(--accent);
}

.compare-card h3 {
  font-size: clamp(1.5rem, 3vw, 1.75rem);
  font-weight: 500;
}

.compare-card ul {
  display: grid;
  gap: 0.5rem;
  padding-left: 1.2rem;
  color: var(--ink-muted);
}

.compare-link {
  margin-top: 0.5rem;
  font-weight: 500;
}

.compare-note {
  margin-top: 1.5rem;
}

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

.home-faq {
  padding-block: clamp(3.5rem, 9vw, 6.5rem);
  background: var(--surface);
  border-block: 1px solid var(--line);
}

.home-faq .faq {
  max-width: 46rem;
}

.home-faq .faq h3 {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 500;
  margin-bottom: 0.75rem;
}

/* ---------- Closing ---------- */

.closing {
  padding-block: clamp(4rem, 10vw, 7.5rem);
  text-align: center;
}

.closing .wrap {
  display: grid;
  justify-items: center;
  gap: 1.25rem;
}

.closing .wrap > svg {
  width: 2.25rem;
  height: 2.25rem;
  color: var(--accent);
}

.closing h2 {
  font-size: clamp(1.875rem, 5.5vw, 3rem);
  font-weight: 500;
  font-style: italic;
  letter-spacing: -0.02em;
  max-width: 22ch;
}

.closing p {
  max-width: 32rem;
  color: var(--ink-muted);
}

.closing .actions {
  justify-content: center;
  margin-top: 0.75rem;
}

/* ---------- Document pages (privacy, terms, support) ---------- */

.doc-head {
  padding-block: clamp(2rem, 7vw, 4.5rem) clamp(2rem, 5vw, 3rem);
  border-bottom: 1px solid var(--line);
}

.doc-head h1 {
  margin-top: 0.75rem;
  font-size: clamp(2.5rem, 8vw, 4.25rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.02;
}

.doc-head .summary {
  margin-top: 1.25rem;
  max-width: 38rem;
  font-family: var(--serif);
  font-size: clamp(1.1875rem, 2.8vw, 1.375rem);
  line-height: 1.5;
  color: var(--ink-muted);
}

.doc-head .meta {
  margin-top: 1.25rem;
  font-size: 0.875rem;
  color: var(--ink-muted);
}

.doc-body {
  padding-block: clamp(2.5rem, 6vw, 4rem) clamp(4rem, 9vw, 6rem);
}

.doc-body .wrap {
  display: grid;
  gap: 2.5rem;
}

@media (min-width: 960px) {
  .doc-body .wrap {
    grid-template-columns: 14rem minmax(0, var(--measure));
    gap: clamp(3rem, 7vw, 6rem);
  }
}

.toc {
  font-size: 0.9375rem;
}

@media (min-width: 960px) {
  .toc {
    position: sticky;
    top: 2rem;
    align-self: start;
  }
}

.toc h2 {
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 0.75rem;
}

.toc ol {
  list-style: none;
  padding: 0;
  border-left: 1px solid var(--line-strong);
}

.toc li a {
  display: block;
  padding: 0.3rem 0 0.3rem 1rem;
  color: var(--ink-muted);
  text-decoration: none;
  line-height: 1.4;
}

.toc li a:hover {
  color: var(--ink);
}

@media (max-width: 959px) {
  .toc {
    padding: 1.25rem 1.25rem 1rem;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
  }

  .toc ol {
    border-left: 0;
    columns: 2 12rem;
    column-gap: 1.5rem;
  }

  .toc li a {
    padding-left: 0;
  }
}

.prose {
  max-width: var(--measure);
  min-width: 0;
}

.prose > section + section {
  margin-top: 3rem;
}

.prose h2 {
  font-size: clamp(1.5rem, 3.6vw, 1.875rem);
  font-weight: 500;
  letter-spacing: -0.015em;
  margin-bottom: 1rem;
}

.prose h3 {
  font-size: 1.1875rem;
  font-weight: 600;
  margin: 1.75rem 0 0.5rem;
}

.prose p + p,
.prose p + ul,
.prose ul + p,
.prose p + dl,
.prose dl + p {
  margin-top: 1rem;
}

.prose ul {
  padding-left: 1.25rem;
}

.prose li {
  padding-left: 0.25rem;
}

.prose li + li {
  margin-top: 0.5rem;
}

.prose li::marker {
  color: var(--accent);
}

.prose strong {
  font-weight: 600;
}

.ledger {
  border-top: 1px solid var(--line);
}

.ledger > div {
  display: grid;
  gap: 0.25rem;
  padding-block: 1rem;
  border-bottom: 1px solid var(--line);
}

@media (min-width: 600px) {
  .ledger > div {
    grid-template-columns: 11rem minmax(0, 1fr);
    gap: 1.25rem;
  }
}

.ledger dt {
  font-weight: 600;
}

.ledger dd {
  margin: 0;
  color: var(--ink-muted);
}

.callout {
  margin-top: 1.5rem;
  padding: 1.25rem 1.4rem;
  background: var(--accent-wash);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.callout p {
  color: var(--ink);
}

/* FAQ */

.faq {
  border-top: 1px solid var(--line);
}

.faq > section {
  padding-block: 2rem;
  border-bottom: 1px solid var(--line);
}

.prose .faq > section + section {
  margin-top: 0;
}

.faq h2 {
  font-size: clamp(1.375rem, 3.2vw, 1.625rem);
  margin-bottom: 0.75rem;
}

.faq p,
.faq ol,
.faq ul {
  color: var(--ink-muted);
}

.faq ol {
  padding-left: 1.4rem;
}

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

.faq p + ol,
.faq ol + p {
  margin-top: 0.75rem;
}

.contact-card {
  margin-top: 3rem;
  padding: clamp(1.5rem, 4vw, 2.25rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.contact-card h2 {
  margin-bottom: 0.5rem;
}

.contact-card p {
  color: var(--ink-muted);
}

.contact-card .email {
  display: inline-block;
  margin-top: 1rem;
  font-family: var(--serif);
  font-size: clamp(1.25rem, 4.5vw, 1.625rem);
  font-weight: 500;
  overflow-wrap: anywhere;
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 2.5rem 3rem;
  font-size: 0.9375rem;
  color: var(--ink-muted);
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem 2rem;
}

.site-footer .sign {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.site-footer .sign svg {
  width: 1.125rem;
  height: 1.125rem;
  color: var(--accent);
}

.site-footer .motto {
  font-family: var(--serif);
  font-style: italic;
  color: var(--ink);
}

.site-footer ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  list-style: none;
  padding: 0;
}

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

.site-footer a:hover {
  color: var(--ink);
  text-decoration: underline;
}

.site-footer small {
  font-size: inherit;
  white-space: nowrap;
}

@media print {
  body {
    background: none;
  }

  .site-nav,
  .toc,
  .skip-link {
    display: none;
  }
}