/* Harf — landing site stylesheet. No frameworks, no external assets. */

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

:root {
  color-scheme: light dark;

  --teal: #14504D;
  --teal-deep: #0E2B29;
  --orange: #F5A623;
  --cream: #F7F3EA;
  --ink: #1A1A1A;

  --bg: var(--cream);
  --surface: #FFFFFF;
  --text: var(--ink);
  --muted: #4A4A45;
  --border: #E3DCCB;
  --heading: var(--teal);
  --link: #135450;
  --band-bg: var(--teal);
  --band-text: #F7F3EA;
  --band-muted: #CFE0DD;
  --footer-bg: var(--teal-deep);
  --code-bg: #0E2B29;
  --code-text: #E8F0EE;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101C1B;
    --surface: #182B29;
    --text: #EAE7DE;
    --muted: #B4C2BF;
    --border: #2C4441;
    --heading: #9FCEC8;
    --link: #9FCEC8;
    --band-bg: #123230;
    --band-text: #EAE7DE;
    --band-muted: #B4C2BF;
    --footer-bg: #0C1F1E;
    --code-bg: #0C1F1E;
    --code-text: #DCE8E5;
  }
}

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

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

body {
  margin: 0;
  font-family: system-ui, "Segoe UI", -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  background: var(--bg);
  color: var(--text);
  overflow-wrap: break-word;
}

.wrap {
  max-inline-size: 66rem;
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

/* ---------- Accessibility helpers ---------- */

.sr-only {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  inset-block-start: -3rem;
  inset-inline-start: 1rem;
  z-index: 10;
  background: var(--orange);
  color: var(--ink);
  padding: .5rem 1rem;
  border-radius: 0 0 .5rem .5rem;
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus {
  inset-block-start: 0;
}

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

/* ---------- Links ---------- */

a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: .15em;
}

a:hover { text-decoration-thickness: .12em; }

/* ---------- Teal bands (hero, privacy) ---------- */

.band {
  background: var(--band-bg);
  color: var(--band-text);
}

.band a { color: inherit; }
.band h2 { color: inherit; }
.band .muted { color: var(--band-muted); }

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

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: .5rem 1.5rem;
  padding-block: 1.1rem;
}

.brand {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: .01em;
}

.site-header nav {
  display: flex;
  gap: 1.25rem;
}

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

.hero {
  padding-block: clamp(2.5rem, 7vw, 5rem);
}

.hero h1 {
  margin: 0 0 .75rem;
  font-size: clamp(1.7rem, 4.5vw, 2.7rem);
  line-height: 1.2;
  max-inline-size: 24em;
}

.tagline {
  margin: 0 0 1.75rem;
  max-inline-size: 46em;
  font-size: 1.06rem;
}

.swap-demo {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 2rem;
  margin-block-end: 2rem;
}

.swap {
  margin: 0;
  padding: .55rem .9rem;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: .6rem;
  font-size: 1.15rem;
}

.swap-wrong {
  font-family: ui-monospace, "Cascadia Code", Consolas, Menlo, monospace;
  text-decoration: line-through;
  text-decoration-thickness: .09em;
  opacity: .78;
}

.swap-right { font-weight: 700; }

.arrow {
  color: var(--orange);
  font-weight: 700;
  margin-inline: .25rem;
}

.swap-note {
  font-size: .82rem;
  color: var(--band-muted);
  margin-inline-start: .35rem;
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-block-end: 1.25rem;
}

.btn {
  display: inline-block;
  padding: .7rem 1.4rem;
  border-radius: .55rem;
  font-weight: 600;
  text-decoration: none;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--orange);
  color: var(--ink);
  border-color: var(--orange);
}

.btn-primary:hover { filter: brightness(1.06); }

.btn-ghost {
  border-color: currentColor;
  color: inherit;
}

.fineprint {
  margin: 0;
  font-size: .88rem;
  color: var(--band-muted);
  max-inline-size: 50em;
}

/* ---------- Sections ---------- */

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

.section h2 {
  margin: 0 0 1.5rem;
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  line-height: 1.25;
  color: var(--heading);
}

.section > .wrap > p.lead {
  max-inline-size: 50em;
  margin-block-start: -0.75rem;
  margin-block-end: 1.5rem;
}

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

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

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1.25rem;
}

.steps li {
  counter-increment: step;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: .75rem;
  padding: 1.25rem;
}

.steps li::before {
  content: counter(step);
  display: inline-grid;
  place-items: center;
  inline-size: 2rem;
  block-size: 2rem;
  border-radius: 50%;
  background: var(--teal);
  color: #FFFFFF;
  font-weight: 700;
  margin-block-end: .6rem;
}

html[lang="ar"] .steps li::before {
  content: counter(step, arabic-indic);
}

.steps h3, .card h3 {
  margin: 0 0 .35rem;
  font-size: 1.05rem;
}

.steps p, .card p {
  margin: 0;
  font-size: .95rem;
  color: var(--muted);
}

/* ---------- Feature cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: .75rem;
  padding: 1.25rem;
}

.card h3::before {
  content: "";
  display: block;
  inline-size: 2rem;
  block-size: 3px;
  border-radius: 2px;
  background: var(--orange);
  margin-block-end: .55rem;
}

/* ---------- Language table ---------- */

.table-wrap {
  overflow-x: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: .75rem;
}

table {
  border-collapse: collapse;
  inline-size: 100%;
  min-inline-size: 38rem;
  font-size: .95rem;
}

caption { /* caption is visually hidden; heading above serves sighted users */
  position: absolute;
  clip-path: inset(50%);
  inline-size: 1px;
  block-size: 1px;
  overflow: hidden;
}

th, td {
  padding: .65rem .9rem;
  text-align: start;
  border-block-end: 1px solid var(--border);
}

thead th {
  background: var(--teal);
  color: #FFFFFF;
  font-weight: 600;
  white-space: nowrap;
}

tbody tr:last-child th,
tbody tr:last-child td { border-block-end: 0; }

tbody th { font-weight: 600; }

td.yes { color: var(--heading); font-weight: 600; }
td.no  { color: var(--muted); }

.footnote {
  font-size: .88rem;
  color: var(--muted);
  max-inline-size: 50em;
  margin-block-start: 1rem;
}

/* ---------- Privacy list ---------- */

.promises {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .85rem;
  max-inline-size: 52em;
}

.promises li {
  padding-inline-start: 1.6rem;
  position: relative;
}

.promises li::before {
  content: "✓";
  position: absolute;
  inset-inline-start: 0;
  color: var(--orange);
  font-weight: 700;
}

/* ---------- Code / kbd ---------- */

pre {
  background: var(--code-bg);
  color: var(--code-text);
  padding: 1rem 1.25rem;
  border-radius: .6rem;
  overflow-x: auto;
  direction: ltr;
  text-align: left;
  font-size: .9rem;
  line-height: 1.6;
  max-inline-size: 52em;
}

code, kbd {
  font-family: ui-monospace, "Cascadia Code", Consolas, Menlo, monospace;
}

p code, li code {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: .3rem;
  padding: .05em .35em;
  font-size: .9em;
  direction: ltr;
  unicode-bidi: isolate;
}

kbd {
  display: inline-block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-block-end-width: 2px;
  border-radius: .35rem;
  padding: .05rem .45rem;
  font-size: .85em;
  direction: ltr;
  unicode-bidi: isolate;
}

.band p code, .band li code, .band kbd {
  background: rgba(255, 255, 255, .1);
  border-color: rgba(255, 255, 255, .3);
  color: inherit;
}

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

.faq details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: .6rem;
  max-inline-size: 52em;
}

.faq details + details { margin-block-start: .75rem; }

.faq summary {
  cursor: pointer;
  font-weight: 600;
  padding: .9rem 1.1rem;
  border-radius: .6rem;
}

.faq summary::marker { color: var(--orange); }

.faq details[open] summary {
  border-block-end: 1px solid var(--border);
  border-end-start-radius: 0;
  border-end-end-radius: 0;
}

.faq details p {
  margin: 0;
  padding: .85rem 1.1rem 1rem;
  color: var(--muted);
}

.faq details p + p { padding-block-start: 0; }

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

.site-footer {
  background: var(--footer-bg);
  color: #F7F3EA;
  padding-block: 2.25rem;
  font-size: .92rem;
}

.site-footer a { color: inherit; }

.site-footer .wrap {
  display: grid;
  gap: 1rem;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.5rem;
}

.site-footer p { margin: 0; color: #CFE0DD; }

.lang-switch {
  display: inline-block;
  border: 1px solid rgba(255, 255, 255, .45);
  border-radius: 2rem;
  padding: .2rem .9rem;
  text-decoration: none;
  font-weight: 600;
}

.lang-switch:hover { border-color: var(--orange); }