/* Lockbud / Kilit Dostu web. Tokens mirror src/theme/tokens.ts (spec §6.2–§6.4).
   Self-hosted fonts only (spec §9.9): no third-party request before or after consent. */

@font-face { font-family: 'Nunito'; src: url('/fonts/Nunito_800ExtraBold.ttf') format('truetype'); font-weight: 800; font-style: normal; font-display: swap; }
@font-face { font-family: 'Nunito'; src: url('/fonts/Nunito_900Black.ttf') format('truetype'); font-weight: 900; font-style: normal; font-display: swap; }
@font-face { font-family: 'Onest'; src: url('/fonts/Onest_400Regular.ttf') format('truetype'); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: 'Onest'; src: url('/fonts/Onest_600SemiBold.ttf') format('truetype'); font-weight: 500 700; font-style: normal; font-display: swap; }

:root {
  color-scheme: light dark;
  --bg: #FBF7EF;
  --surface: #FFFFFF;
  --surface-alt: #F3EDE1;
  --border: #E4DCCB;
  --text: #1B2A21;
  --text-muted: #56645B;
  --primary: #2D6A4A;
  --on-primary: #FFFFFF;
  --primary-soft: #DCEEDF;
  --on-primary-soft: #1E4A33;
  --apricot-text: #94491A;
  --apricot-soft: #FCE9D6;
  --key: #E9B23A;
  --key-text: #7A5600;
  --key-soft: #FBEFCF;
  --danger: #B93A28;
  --on-danger: #FFFFFF;
  --danger-soft: #FBE3DE;
  --input-border: #7F8C84;
  --disabled-bg: #E4DCCB;
  --disabled-text: #56645B;
  --pressed-overlay: rgba(27, 42, 33, 0.08);
  --skeleton-base: #F3EDE1;
  --skeleton-highlight: #FBF7EF;
  --shadow: 0 6px 20px rgba(27, 42, 33, 0.08);

  --font-display: 'Nunito', ui-rounded, system-ui, sans-serif;
  --font-ui: 'Onest', system-ui, -apple-system, 'Segoe UI', sans-serif;

  --s-4: 4px; --s-8: 8px; --s-12: 12px; --s-16: 16px; --s-20: 20px; --s-24: 24px; --s-32: 32px; --s-40: 40px; --s-56: 56px;
  --r-card: 24px; --r-button: 18px; --r-input: 14px; --r-chip: 999px;
  --touch: 44px; --primary-h: 58px;
  --dur-fast: 150ms; --dur-base: 250ms;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0E1914;
    --surface: #15231C;
    --surface-alt: #1D2E25;
    --border: #2B4035;
    --text: #F2EEE4;
    --text-muted: #A8B5AC;
    --primary: #86D6A2;
    --on-primary: #0B2316;
    --primary-soft: #1C3A2A;
    --on-primary-soft: #C4EBD0;
    --apricot-text: #FFB57A;
    --apricot-soft: #3A2616;
    --key: #F4CB5C;
    --key-text: #F4CB5C;
    --key-soft: #3A2F12;
    --danger: #FF8B75;
    --on-danger: #2A0A04;
    --danger-soft: #3D1A14;
    --input-border: #6E8277;
    --disabled-bg: #1D2E25;
    --disabled-text: #6E8277;
    --pressed-overlay: rgba(242, 238, 228, 0.10);
    --skeleton-base: #1D2E25;
    --skeleton-highlight: #2B4035;
    --shadow: none; /* dark theme uses bg → surface → surface-alt steps instead of shadows */
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 17px; /* body 17/24 */
  line-height: 24px;
  font-variant-ligatures: no-common-ligatures; /* "fi", "fl" ligatures break Turkish dotless ı readings */
  font-feature-settings: 'liga' 0, 'clig' 0;
  -webkit-font-smoothing: antialiased;
  overflow-wrap: anywhere;
}
/* Language: html[lang] is set by /assets/lang.js before first paint. No text-transform anywhere (Turkish İ/ı). */
html[lang='en'] [data-lang='tr'], html[lang='tr'] [data-lang='en'] { display: none !important; }

.page { max-width: 560px; margin: 0 auto; padding: 0 var(--s-20) var(--s-40); min-height: 100vh; display: flex; flex-direction: column; }
main { flex: 1; }

/* Header */
.top { display: flex; align-items: center; justify-content: space-between; gap: var(--s-12); padding: var(--s-12) 0; }
.brand { display: inline-flex; align-items: center; gap: var(--s-8); min-height: var(--touch); color: var(--text); text-decoration: none; font-family: var(--font-display); font-weight: 900; font-size: 20px; }
.brand img { width: 32px; height: 36px; }
.lang-switch { display: inline-flex; gap: var(--s-4); }
.lang-switch a { display: inline-flex; align-items: center; justify-content: center; min-width: var(--touch); min-height: var(--touch); padding: 0 var(--s-8); border-radius: var(--r-chip); color: var(--text-muted); text-decoration: none; font-weight: 600; font-size: 15px; }
.lang-switch a[aria-current='true'] { color: var(--on-primary-soft); background: var(--primary-soft); }

/* Type scale (spec §6.3) */
.display { font-family: var(--font-display); font-weight: 900; font-size: 36px; line-height: 46px; margin: var(--s-24) 0 var(--s-8); letter-spacing: -0.2px; }
h1, .title1 { font-family: var(--font-display); font-weight: 800; font-size: 28px; line-height: 36px; margin: var(--s-24) 0 var(--s-12); }
h2, .title2 { font-family: var(--font-display); font-weight: 800; font-size: 22px; line-height: 28px; margin: var(--s-32) 0 var(--s-8); }
h3, .headline { font-family: var(--font-ui); font-weight: 600; font-size: 17px; line-height: 22px; margin: var(--s-24) 0 var(--s-8); }
p { margin: 0 0 var(--s-12); }
.lead { font-size: 19px; line-height: 27px; color: var(--text-muted); margin-bottom: var(--s-24); }
.muted { color: var(--text-muted); }
.footnote { font-size: 13px; line-height: 18px; color: var(--text-muted); }
.subhead { font-size: 15px; line-height: 20px; }
.tabular { font-variant-numeric: tabular-nums; }

a { color: var(--primary); text-decoration: underline; text-underline-offset: 2px; }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible, label:focus-within { outline: 3px solid var(--primary); outline-offset: 2px; }

/* Cards */
.card { background: var(--surface); border-radius: var(--r-card); padding: var(--s-20); box-shadow: var(--shadow); margin: var(--s-16) 0; }
.card.alt { background: var(--surface-alt); box-shadow: none; }
.card > :last-child { margin-bottom: 0; }

/* Bud illustration */
.bud { display: block; margin: var(--s-16) auto var(--s-8); width: 120px; height: 140px; }
.bud.small { width: 72px; height: 84px; }
.hero { text-align: center; }

/* Buttons (spec §6.7) */
.btn {
  position: relative; display: flex; align-items: center; justify-content: center; gap: var(--s-8);
  width: 100%; min-height: var(--primary-h); padding: var(--s-16) var(--s-20);
  border: 0; border-radius: var(--r-button);
  font: 600 17px/22px var(--font-ui); font-variant-ligatures: no-common-ligatures; text-align: center; text-decoration: none;
  cursor: pointer; transition: transform var(--dur-fast) ease-out, background-color var(--dur-fast);
  margin: var(--s-8) 0;
}
.btn::after { content: ''; position: absolute; inset: 0; border-radius: inherit; background: transparent; transition: background-color var(--dur-fast); pointer-events: none; }
.btn:active:not(:disabled)::after { background: var(--pressed-overlay); }
.btn:active:not(:disabled) { transform: scale(0.97); }
.btn-primary { background: var(--primary); color: var(--on-primary); }
.btn-secondary { background: var(--primary-soft); color: var(--on-primary-soft); }
.btn-tertiary { background: transparent; color: var(--primary); min-height: var(--touch); text-decoration: underline; text-underline-offset: 3px; }
.btn-danger-text { background: transparent; color: var(--danger); min-height: var(--touch); font-size: 15px; }
.btn:disabled, .btn[aria-disabled='true'] { background: var(--disabled-bg); color: var(--disabled-text); cursor: not-allowed; }
.btn-tertiary:disabled, .btn-danger-text:disabled { background: transparent; }
.btn .spinner { width: 18px; height: 18px; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Form fields */
.field { margin: var(--s-16) 0; }
.field label, .label { display: block; font-weight: 600; font-size: 15px; line-height: 20px; margin-bottom: var(--s-8); }
.field .hint { font-size: 13px; line-height: 18px; color: var(--text-muted); margin-top: var(--s-8); }
input[type='text'], input[type='email'], input[type='password'], input[inputmode='numeric'] {
  width: 100%; min-height: 52px; padding: var(--s-12) var(--s-16);
  border: 1px solid var(--input-border); border-radius: var(--r-input);
  background: var(--surface); color: var(--text);
  font: 400 17px/24px var(--font-ui); font-variant-ligatures: no-common-ligatures;
}
.card input[type='text'], .card input[type='email'], .card input[inputmode='numeric'] { background: var(--surface-alt); }
input:focus { outline: none; border: 2px solid var(--primary); padding: calc(var(--s-12) - 1px) calc(var(--s-16) - 1px); }
input:disabled { background: var(--disabled-bg); color: var(--disabled-text); border-color: var(--border); }
input.pin { font: 900 28px/36px var(--font-display); letter-spacing: 12px; text-align: center; max-width: 220px; font-variant-numeric: tabular-nums; }
.check { display: flex; align-items: center; gap: var(--s-12); min-height: var(--touch); cursor: pointer; font-size: 15px; line-height: 20px; }
.check input { width: 24px; height: 24px; accent-color: var(--primary); margin: 0; flex: none; }

/* Chips and badges */
.chips { display: flex; flex-wrap: wrap; gap: var(--s-8); margin: var(--s-12) 0; }
.chip { display: inline-flex; align-items: center; gap: var(--s-4); min-height: 32px; padding: var(--s-4) var(--s-12); border-radius: var(--r-chip); background: var(--primary-soft); color: var(--on-primary-soft); font-weight: 600; font-size: 15px; line-height: 20px; }
.chip.key { background: var(--key-soft); color: var(--key-text); }
.chip.apricot { background: var(--apricot-soft); color: var(--apricot-text); }

/* Banners */
.banner { display: flex; gap: var(--s-12); align-items: flex-start; border-radius: 16px; padding: var(--s-12) var(--s-16); margin: var(--s-16) 0; font-size: 15px; line-height: 20px; }
.banner.notice { background: var(--key-soft); color: var(--text); }
.banner.info { background: var(--primary-soft); color: var(--on-primary-soft); }
.banner.error { background: var(--danger-soft); color: var(--text); }
.banner.error strong { color: var(--danger); }
.banner .icon { flex: none; width: 20px; height: 20px; margin-top: 0; }
.banner p { margin: 0; }

/* Note quote */
.note { margin: var(--s-12) 0; padding: var(--s-12) var(--s-16); border-left: 3px solid var(--key); background: var(--surface-alt); border-radius: 0 var(--r-input) var(--r-input) 0; font-size: 17px; }

/* Steps list on landing */
.steps { list-style: none; padding: 0; margin: var(--s-16) 0; display: grid; gap: var(--s-12); }
.steps li { display: flex; gap: var(--s-12); align-items: center; background: var(--surface); border-radius: 18px; padding: var(--s-12) var(--s-16); box-shadow: var(--shadow); min-height: 56px; font-weight: 600; }
.steps .num { flex: none; display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; border-radius: 50%; background: var(--primary-soft); color: var(--on-primary-soft); font-family: var(--font-display); font-weight: 900; }

/* FAQ */
details { background: var(--surface); border-radius: 18px; margin: var(--s-12) 0; box-shadow: var(--shadow); }
summary { cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: var(--s-12); min-height: 56px; padding: var(--s-12) var(--s-16); font-weight: 600; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; font: 900 22px/1 var(--font-display); color: var(--primary); flex: none; }
details[open] summary::after { content: '−'; }
details > div { padding: 0 var(--s-16) var(--s-16); }
details > div > :last-child { margin-bottom: 0; }

/* Legal documents */
.doc h2 { margin-top: var(--s-40); }
.doc ul, .doc ol { padding-left: var(--s-24); margin: 0 0 var(--s-12); }
.doc li { margin: var(--s-4) 0; }
.doc table { width: 100%; border-collapse: collapse; margin: var(--s-12) 0 var(--s-16); font-size: 15px; line-height: 20px; display: block; overflow-x: auto; }
.doc th, .doc td { text-align: left; vertical-align: top; padding: var(--s-8); border-bottom: 1px solid var(--border); min-width: 110px; }
.doc th { font-weight: 600; }
.doc em.todo { font-style: normal; color: var(--key-text); background: var(--key-soft); padding: 0 var(--s-4); border-radius: 4px; }
mark.ph { background: var(--key-soft); color: var(--key-text); padding: 0 var(--s-4); border-radius: 4px; font-weight: 600; }
.meta { font-size: 15px; color: var(--text-muted); }
.toc { display: flex; flex-wrap: wrap; gap: var(--s-8); margin: var(--s-16) 0; }
.toc a { display: inline-flex; align-items: center; min-height: var(--touch); padding: 0 var(--s-12); border-radius: var(--r-chip); background: var(--surface-alt); color: var(--text); text-decoration: none; font-size: 15px; font-weight: 600; }

/* Skeleton */
.skeleton { border-radius: 12px; background: var(--skeleton-base); position: relative; overflow: hidden; }
.skeleton::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, transparent, var(--skeleton-highlight), transparent); transform: translateX(-100%); animation: shimmer 1.2s infinite; }
@keyframes shimmer { to { transform: translateX(100%); } }
.sk-circle { width: 96px; height: 112px; margin: var(--s-16) auto; border-radius: 32px; }
.sk-line { height: 20px; margin: var(--s-12) 0; }
.sk-line.w60 { width: 60%; } .sk-line.w80 { width: 80%; } .sk-line.h58 { height: 58px; border-radius: var(--r-button); }

/* Footer */
.foot { margin-top: var(--s-40); padding-top: var(--s-16); border-top: 1px solid var(--border); font-size: 15px; }
.foot nav { display: flex; flex-wrap: wrap; gap: 0 var(--s-16); }
.foot a { display: inline-flex; align-items: center; min-height: var(--touch); color: var(--text-muted); }
.foot p { color: var(--text-muted); font-size: 13px; line-height: 18px; margin-top: var(--s-8); }

.draft { margin: var(--s-12) 0; }
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.center { text-align: center; }
.stack-tight > * { margin-top: 0; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  .skeleton::after { display: none; }
  .btn:active:not(:disabled) { transform: none; }
}

@media (min-width: 600px) {
  .page { padding-top: var(--s-16); }
  .display { font-size: 44px; line-height: 54px; }
}

.chips-center { justify-content: center; }
.foot-actions { margin-top: var(--s-32); padding-top: var(--s-8); border-top: 1px solid var(--border); }
.waitlist-row { display: grid; gap: var(--s-8); }
.soon { display: inline-flex; align-items: center; min-height: 28px; padding: 0 var(--s-12); border-radius: var(--r-chip); background: var(--key-soft); color: var(--key-text); font-size: 13px; font-weight: 600; margin-left: var(--s-8); vertical-align: middle; }
.honest { padding-left: var(--s-20); }
.honest li { margin: var(--s-8) 0; }
/* Headings receive programmatic focus on view changes (screen readers); no visible ring for that. */
h1[tabindex='-1']:focus { outline: none; }
.card .field:first-child { margin-top: 0; }
.card > :first-child, details > div > :first-child { margin-top: 0; }