/*
  VerbKey — website styles.
  Palette and type follow mobile/src/theme/tokens.ts so the site and the app
  read as one product. No framework, no build step.
*/

/* ─── Tokens ─────────────────────────────────────────────── */

:root {
  --paper: #f6f3ec;
  --paper-raised: #fffdf8;
  --ink: #16161a;
  --ink-soft: #5a5a66;
  --ink-faint: #8a8a94;
  --rule: #e2ddd1;
  --accent: #b6593f;
  --accent-hot: #a04a32;
  --accent-wash: #f3e5df;
  --deep: #1f2a44;
  --shadow: 18px 40px -24px rgba(31, 42, 68, 0.28);
  --shadow-sm: 0 2px 10px -4px rgba(31, 42, 68, 0.25);

  --serif: "Fraunces", "New York", Charter, "Iowan Old Style", Georgia, serif;
  --sans:
    system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", sans-serif;

  --measure: 62ch;
  --gutter: 20px;
  --radius: 18px;
  --radius-sm: 12px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #14131a;
    --paper-raised: #1c1b23;
    --ink: #f3efe6;
    --ink-soft: #a9a6b2;
    --ink-faint: #7d7a87;
    --rule: #2c2a35;
    --accent: #e08063;
    --accent-hot: #ef9075;
    --accent-wash: #2a1f1c;
    --deep: #c3cde4;
    --shadow: 18px 40px -24px rgba(0, 0, 0, 0.7);
    --shadow-sm: 0 2px 10px -4px rgba(0, 0, 0, 0.6);
  }
}

:root[data-theme="dark"] {
  --paper: #14131a;
  --paper-raised: #1c1b23;
  --ink: #f3efe6;
  --ink-soft: #a9a6b2;
  --ink-faint: #7d7a87;
  --rule: #2c2a35;
  --accent: #e08063;
  --accent-hot: #ef9075;
  --accent-wash: #2a1f1c;
  --deep: #c3cde4;
  --shadow: 18px 40px -24px rgba(0, 0, 0, 0.7);
  --shadow-sm: 0 2px 10px -4px rgba(0, 0, 0, 0.6);
}

/* ─── Base ───────────────────────────────────────────────── */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0 0 0.5em;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.5rem, 7vw, 4.1rem);
}
h2 {
  font-size: clamp(1.85rem, 4vw, 2.6rem);
}
h3 {
  font-size: 1.2rem;
  font-family: var(--sans);
  font-weight: 650;
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 1.1em;
  max-width: var(--measure);
}

a {
  color: var(--accent);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

a:hover {
  color: var(--accent-hot);
}

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

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 12px 18px;
  z-index: 100;
}

.skip-link:focus {
  left: 12px;
  top: 12px;
}

/* ─── Layout ─────────────────────────────────────────────── */

.wrap {
  width: 100%;
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

section {
  padding-block: clamp(56px, 9vw, 104px);
}

.eyebrow {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.lede {
  font-size: clamp(1.05rem, 2.2vw, 1.28rem);
  color: var(--ink-soft);
  line-height: 1.55;
}

.section-head {
  max-width: 44ch;
  margin-bottom: clamp(32px, 5vw, 52px);
}

/* ─── Brand mark ─────────────────────────────────────────── */

.mark {
  display: block;
  width: 30px;
  height: 30px;
  flex: none;
}

.mark-shape {
  fill: var(--accent);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-size: 1.32rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: none;
}

.wordmark:hover {
  color: var(--ink);
}

/* ─── Nav ────────────────────────────────────────────────── */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 66px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.95rem;
}

.nav-links a {
  color: var(--ink-soft);
  text-decoration: none;
}

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

@media (max-width: 720px) {
  .nav-links {
    display: none;
  }
}

/* ─── Buttons ────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 14px 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  font: inherit;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform 0.16s ease,
    background-color 0.16s ease,
    box-shadow 0.16s ease;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--accent-hot);
  color: #fff;
  transform: translateY(-1px);
}

.btn-quiet {
  background: transparent;
  color: var(--ink);
  border-color: var(--rule);
}

.btn-quiet:hover {
  color: var(--ink);
  border-color: var(--ink-faint);
}

.btn-sm {
  padding: 9px 17px;
  font-size: 0.92rem;
}

.cta-note {
  font-size: 0.88rem;
  color: var(--ink-faint);
  margin-top: 14px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

/* ─── Hero ───────────────────────────────────────────────── */

.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(48px, 8vw, 92px) clamp(56px, 9vw, 108px);
}

.hero::before {
  content: "";
  position: absolute;
  inset: -30% 40% 30% -20%;
  background: radial-gradient(
    closest-side,
    color-mix(in srgb, var(--accent) 18%, transparent),
    transparent
  );
  pointer-events: none;
  z-index: 0;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: clamp(32px, 6vw, 72px);
  align-items: center;
}

.hero h1 {
  margin-bottom: 20px;
}

.hero .lede {
  max-width: 46ch;
  margin-bottom: 28px;
}

.hero-langs {
  display: flex;
  gap: 8px;
  margin-top: 26px;
  font-size: 0.85rem;
  color: var(--ink-faint);
  align-items: center;
}

@media (max-width: 880px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-art {
    order: -1;
  }
}

/* ─── Phone mock ─────────────────────────────────────────── */

.hero-art {
  display: flex;
  justify-content: center;
}

.phone {
  position: relative;
  width: min(300px, 78vw);
  aspect-ratio: 9 / 19.2;
  background: var(--paper-raised);
  border: 9px solid #1a1a1f;
  border-radius: 46px;
  box-shadow: var(--shadow);
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}

.phone::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 50%;
  transform: translateX(-50%);
  width: 86px;
  height: 22px;
  background: #1a1a1f;
  border-radius: 0 0 14px 14px;
}

.screen-label {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 14px 0 20px;
  text-align: center;
}

.prompt {
  font-family: var(--serif);
  font-size: 1.42rem;
  line-height: 1.25;
  margin-bottom: 4px;
}

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

.prompt-hint {
  font-size: 0.85rem;
  color: var(--ink-faint);
  margin-bottom: 18px;
}

.choices {
  display: grid;
  gap: 9px;
  margin-top: 6px;
}

.choice {
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 0.97rem;
  background: var(--paper);
}

.choice-right {
  border-color: var(--accent);
  background: var(--accent-wash);
  color: var(--accent-hot);
  font-weight: 600;
}

.phone-footer {
  margin-top: 22px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--ink-faint);
}

/* ─── Bands ──────────────────────────────────────────────── */

.band {
  background: var(--deep);
  color: var(--paper);
}

.band h2,
.band h3 {
  color: var(--paper);
}

.band p {
  color: color-mix(in srgb, var(--paper) 78%, transparent);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .band {
    background: var(--paper-raised);
    color: var(--ink);
  }
  :root:not([data-theme="light"]) .band h2,
  :root:not([data-theme="light"]) .band h3 {
    color: var(--ink);
  }
  :root:not([data-theme="light"]) .band p {
    color: var(--ink-soft);
  }
}

.statement {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3.6vw, 2.5rem);
  line-height: 1.24;
  max-width: 24ch;
  margin: 0;
  text-wrap: balance;
}

/* ─── Steps ──────────────────────────────────────────────── */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 3vw, 34px);
  counter-reset: step;
}

.step {
  border-top: 2px solid var(--accent);
  padding-top: 20px;
}

.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  display: block;
  font-family: var(--serif);
  font-size: 0.95rem;
  color: var(--accent);
  margin-bottom: 10px;
}

.step p {
  color: var(--ink-soft);
  margin: 0;
  font-size: 0.97rem;
}

/* ─── Cards ──────────────────────────────────────────────── */

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2.4vw, 26px);
}

.card {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 26px 24px;
}

.card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.97rem;
}

.card-icon {
  width: 34px;
  height: 34px;
  margin-bottom: 16px;
  color: var(--accent);
}

.lang-card {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.lang-card .lang-native {
  font-family: var(--serif);
  font-size: 1.3rem;
}

.lang-card .lang-count {
  font-size: 0.85rem;
  color: var(--ink-faint);
  margin-left: auto;
}

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

/* ─── Founder ────────────────────────────────────────────── */

.founder {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 24px;
  align-items: start;
  max-width: 760px;
}

.founder-mark {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent-wash);
  display: grid;
  place-items: center;
}

.founder-mark svg {
  width: 30px;
  height: 30px;
}

.founder blockquote {
  margin: 0;
  font-size: 1.06rem;
}

.founder cite {
  display: block;
  margin-top: 6px;
  font-style: normal;
  font-size: 0.9rem;
  color: var(--ink-faint);
}

/* ─── FAQ ────────────────────────────────────────────────── */

.faq {
  max-width: 760px;
}

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

.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 20px 40px 20px 0;
  font-weight: 600;
  position: relative;
}

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

.faq summary::after {
  content: "";
  position: absolute;
  right: 6px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.2s ease;
}

.faq details[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
}

.faq details p {
  margin: 0 0 20px;
  color: var(--ink-soft);
}

/* ─── Final CTA ──────────────────────────────────────────── */

.final {
  text-align: center;
}

.final .lede,
.final p {
  margin-inline: auto;
}

.final .cta-row {
  justify-content: center;
}

/* ─── Footer ─────────────────────────────────────────────── */

.footer {
  border-top: 1px solid var(--rule);
  padding-block: 52px 40px;
  font-size: 0.93rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}

.footer h4 {
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 14px;
  font-weight: 700;
}

.footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

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

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

.footer-tagline {
  color: var(--ink-faint);
  max-width: 30ch;
  margin-top: 14px;
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: space-between;
  align-items: center;
  color: var(--ink-faint);
  font-size: 0.86rem;
  border-top: 1px solid var(--rule);
  padding-top: 24px;
}

.social {
  display: flex;
  gap: 14px;
}

.social a {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--rule);
  border-radius: 50%;
  color: var(--ink-soft);
}

.social a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.social svg {
  width: 17px;
  height: 17px;
}

@media (max-width: 720px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}

/* ─── Document pages (privacy, support) ──────────────────── */

.doc-head {
  border-bottom: 1px solid var(--rule);
  padding-block: clamp(40px, 6vw, 68px) clamp(28px, 4vw, 40px);
}

.doc-head h1 {
  font-size: clamp(2.1rem, 5vw, 3.1rem);
  margin-bottom: 14px;
}

.doc-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
  padding-block: clamp(36px, 5vw, 60px);
}

.toc {
  position: sticky;
  top: 90px;
  font-size: 0.89rem;
}

.toc-title {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 700;
  margin-bottom: 12px;
}

.toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
  border-left: 1px solid var(--rule);
}

.toc a {
  color: var(--ink-soft);
  text-decoration: none;
  display: block;
  padding-left: 14px;
  margin-left: -1px;
  border-left: 1px solid transparent;
}

.toc a:hover {
  color: var(--accent);
  border-left-color: var(--accent);
}

@media (max-width: 860px) {
  .doc-layout {
    grid-template-columns: 1fr;
  }
  .toc {
    position: static;
    background: var(--paper-raised);
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    padding: 20px;
  }
}

.prose {
  max-width: 68ch;
}

.prose h2 {
  font-size: clamp(1.4rem, 3vw, 1.85rem);
  margin-top: 2.2em;
  scroll-margin-top: 90px;
}

.prose h3 {
  font-size: 1.08rem;
  margin-top: 1.9em;
  scroll-margin-top: 90px;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose ul,
.prose ol {
  padding-left: 1.3em;
  margin: 0 0 1.2em;
  max-width: var(--measure);
}

.prose li {
  margin-bottom: 0.5em;
}

.prose hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 2.6em 0;
}

.prose code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.88em;
  background: var(--accent-wash);
  padding: 2px 6px;
  border-radius: 5px;
}

.prose blockquote {
  margin: 0 0 1.2em;
  padding-left: 18px;
  border-left: 3px solid var(--accent);
  color: var(--ink-soft);
}

.table-scroll {
  overflow-x: auto;
  margin: 0 0 1.6em;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
}

.prose table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.93rem;
}

.prose th,
.prose td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

.prose th {
  background: var(--accent-wash);
  font-weight: 650;
  white-space: nowrap;
}

.prose tbody tr:last-child td {
  border-bottom: 0;
}

/* ─── Scroll reveal ──────────────────────────────────────── */

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
  }
}