/* ============================================================
   QR Scanner — /apps/qr_scanner/
   A Swiss-grid utility page built from the anatomy of a QR code:
   finder marks at the corners, timing-pattern rules, a quiet zone of
   white space, and one module grid in the hero. Violet comes from the
   app's seed colour (#5B4CF5); lavender #B8AAFF is its scanner chrome.
   Light is the base (the app's natural look); dark follows the site
   toggle with the same three-block pattern as /css/index.css.
   ============================================================ */

/* ---------- Tokens -------------------------------------------- */

:root {
  --f-display: "Space Grotesk", "IBM Plex Sans KR", system-ui, sans-serif;
  --f-body: "Manrope", "IBM Plex Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --page-w: 1200px;
  --gut: clamp(16px, 4.6vw, 48px);
  --mod: 3px;                 /* one module of the small finder marks */
  --laser: #b8aaff;           /* the app's scan brackets + scan line */
  --app-measure: var(--page-w);
  --gutter: var(--gut);

  /* scan-type accents, from lib/core/utils/scan_type_ui.dart */
  --t-url: #3d7bf4;
  --t-wifi: #0fa3a8;
  --t-contact: #e08a00;
  --t-email: #e0419b;
  --t-phone: #34a853;
  --t-text: #8456f6;
}

/* Light — the base. Written as :root:not([data-theme="dark"]) so it
   outranks index.css's own light block (same specificity, later). */
:root:not([data-theme="dark"]) {
  color-scheme: light;
  --bg: #f5f4fb;
  --bg-raised: #ffffff;
  --bg-inset: #eceaf6;
  --bg-hover: #e8e5f7;
  --line: #dcd8ee;
  --line-strong: #bdb6de;
  --fg: #17142b;
  --fg-muted: #555170;
  --fg-faint: #8a86a3;
  --accent: #4e3ee6;
  --accent-strong: #3a2ac9;
  --accent-ink: #ffffff;
  --accent-soft: rgba(78, 62, 230, 0.1);

  --mark: #c3bde3;
  --grid-line: rgba(78, 62, 230, 0.075);
  --err: #ba1a1a;
  --tag-bg: 13%;
  --tag-mix: #000000;
  --tag-amt: 24%;
  --frame: #1d1a33;
  --frame-edge: rgba(255, 255, 255, 0.12);
  --lift: 0 40px 80px -36px rgba(36, 26, 120, 0.42), 0 18px 36px -20px rgba(36, 26, 120, 0.28);
  --badge: #17142b;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0e0d19;
    --bg-raised: #15132a;
    --bg-inset: #0a0913;
    --bg-hover: #1c1a35;
    --line: #262340;
    --line-strong: #3a3662;
    --fg: #ecebf8;
    --fg-muted: #a6a2c6;
    --fg-faint: #6f6b93;
    --accent: #aba3ff;
    --accent-strong: #c7c1ff;
    --accent-ink: #14104a;
    --accent-soft: rgba(171, 163, 255, 0.13);

    --mark: #3d3966;
    --grid-line: rgba(171, 163, 255, 0.06);
    --err: #ffb4ab;
    --tag-bg: 22%;
    --tag-mix: #ffffff;
    --tag-amt: 35%;
    --frame: #2a2748;
    --frame-edge: rgba(255, 255, 255, 0.16);
    --lift: 0 40px 80px -30px rgba(0, 0, 0, 0.75), 0 18px 36px -18px rgba(0, 0, 0, 0.6);
    --badge: #000000;
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0e0d19;
  --bg-raised: #15132a;
  --bg-inset: #0a0913;
  --bg-hover: #1c1a35;
  --line: #262340;
  --line-strong: #3a3662;
  --fg: #ecebf8;
  --fg-muted: #a6a2c6;
  --fg-faint: #6f6b93;
  --accent: #aba3ff;
  --accent-strong: #c7c1ff;
  --accent-ink: #14104a;
  --accent-soft: rgba(171, 163, 255, 0.13);

  --mark: #3d3966;
  --grid-line: rgba(171, 163, 255, 0.06);
  --err: #ffb4ab;
  --tag-bg: 22%;
  --tag-mix: #ffffff;
  --tag-amt: 35%;
  --frame: #2a2748;
  --frame-edge: rgba(255, 255, 255, 0.16);
  --lift: 0 40px 80px -30px rgba(0, 0, 0, 0.75), 0 18px 36px -18px rgba(0, 0, 0, 0.6);
  --badge: #000000;
}

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

body.app-qr_scanner {
  font-family: var(--f-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  overflow-x: clip;
}

.app-qr_scanner main h1,
.app-qr_scanner main h2,
.app-qr_scanner main h3 {
  font-family: var(--f-display);
  color: var(--fg);
  text-wrap: balance;
}

.app-qr_scanner main h2 {
  font-size: clamp(2rem, 1.25rem + 2.6vw, 3.25rem);
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: -0.035em;
  max-width: 19ch;
  margin: 0 0 0.45em;
}

.app-qr_scanner main h3 {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 0.6em;
}

.app-qr_scanner code {
  font-size: 0.84em;
  padding: 0.05em 0.35em;
  background: var(--bg-inset);
  border-color: var(--line);
  color: var(--fg);
  white-space: nowrap;
}

.sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

main svg use {
  pointer-events: none;
}

/* Icon strokes — every <svg><use> icon on the page */
.tabs svg,
.type svg,
.vf-type svg,
.type-tag svg,
.gen-status svg,
.gen-actions svg,
.gen-clear svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex: none;
}

/* Path eyebrows — real URLs, per site convention */
.crumb {
  margin: 0 0 1.1rem;
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 0.9375rem;
  letter-spacing: 0;
  color: var(--fg-muted);
}

.crumb a {
  color: var(--fg-muted);
  text-decoration: underline;
  text-decoration-color: var(--line-strong);
  text-underline-offset: 0.25em;
}

.crumb a:hover {
  color: var(--accent);
  text-decoration-color: currentColor;
}

/* Phone frames */
.app-qr_scanner .app-device {
  --device-frame: var(--frame);
  --device-edge: var(--frame-edge);
  --device-shadow: var(--lift);
}

.app-qr_scanner .store-badge {
  --badge-bg: var(--badge);
  --badge-focus: var(--accent);
}

/* ---------- QR anatomy as ornament ---------------------------- */

/* Finder pattern: 7 modules — 1 dark ring, 1 light ring, 3×3 core */
.finder,
.gen-eye,
.get-eye {
  --m: var(--mod);
  display: block;
  flex: none;
  width: calc(var(--m) * 7);
  height: calc(var(--m) * 7);
  border: var(--m) solid currentColor;
  padding: var(--m);
}

.finder::before,
.gen-eye::before,
.get-eye::before {
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  background: currentColor;
}

/* Section rule: finder · timing pattern · finder, the top edge of a symbol */
.qr-rule {
  display: flex;
  align-items: flex-end;
  color: var(--mark);
  margin-bottom: 1.75rem;
}

.qr-rule .timing {
  flex: 1;
  height: var(--mod);
  margin: 0 var(--mod);
  background: repeating-linear-gradient(90deg, currentColor 0 var(--mod), transparent var(--mod) calc(var(--mod) * 2));
}

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

.qr-hero {
  position: relative;
  overflow: clip;
  border-bottom: 1px solid var(--line);
}

/* the module grid */
.qr-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 24px 24px;
  background-position: calc(50% + 12px) -1px;
  -webkit-mask-image: radial-gradient(ellipse 60% 75% at 74% 50%, #000 35%, transparent 78%);
  mask-image: radial-gradient(ellipse 60% 75% at 74% 50%, #000 35%, transparent 78%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  max-width: var(--page-w);
  margin: 0 auto;
  padding: clamp(32px, 4.5vw, 64px) var(--gut) clamp(48px, 5.5vw, 80px);
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 64px);
  align-items: center;
}

.hero-title {
  margin: 0;
  letter-spacing: normal;
}

.hero-name {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: clamp(22px, 3vw, 34px);
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.2;
}

.hero-name img {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  box-shadow: 0 0 0 1px var(--line);
}

.hero-slogan {
  display: block;
  font-size: clamp(2.5rem, 1.2rem + 4.2vw, 4.4rem);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: -0.048em;
}

.hero-slogan > span {
  display: block;
}

/* The full stops are QR modules: square, violet, on the baseline */
.hero-slogan .m {
  display: inline-block;
  width: 0.15em;
  height: 0.15em;
  margin-left: 0.05em;
  overflow: hidden;
  vertical-align: baseline;
  color: transparent;
  background: var(--accent);
}

.hero-lede {
  max-width: 36em;
  margin: clamp(22px, 3vw, 32px) 0 clamp(26px, 3.4vw, 36px);
  font-size: clamp(1.0625rem, 1rem + 0.3vw, 1.1875rem);
  color: var(--fg-muted);
}

.hero-note {
  margin: 0.9rem 0 0;
  font-size: 0.9375rem;
  color: var(--fg-muted);
}

.hero-stage {
  --pw: clamp(240px, 21vw, 284px);
  --overlap: 44px;
  position: relative;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  min-width: 0;
}

.hero-phone {
  --device-w: var(--pw);
}

/* ---------- Viewfinder (an illustration of the Scan tab) ------- */

.vf {
  position: absolute;
  z-index: 2;
  right: calc(var(--pw) - var(--overlap));
  bottom: 4%;
  width: clamp(204px, 17vw, 240px);
  margin: 0;
}

.vf-screen {
  position: relative;
  overflow: hidden;
  padding: 20px 20px 66px;
  border-radius: 30px;
  background:
    radial-gradient(90% 60% at 18% 8%, rgba(126, 108, 255, 0.35), transparent 70%),
    radial-gradient(80% 60% at 90% 100%, rgba(15, 163, 168, 0.18), transparent 70%),
    #120f24;
  box-shadow: var(--lift), inset 0 0 0 1px rgba(255, 255, 255, 0.09);
}

.vf-window {
  position: relative;
  aspect-ratio: 1;
}

.vf-card {
  position: absolute;
  inset: 12%;
  overflow: hidden;
  border-radius: 10px;
  background: #fff;
}

.vf-card svg {
  display: block;
  width: 100%;
  height: 100%;
}

.vf-brackets {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  fill: none;
  stroke: var(--laser);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 5px rgba(184, 170, 255, 0.6));
}

.vf-brackets path {
  vector-effect: non-scaling-stroke;
}

/* Scan line: 3 px core + 52 px glow, 2.2 s each way, as in the app */
.vf-line {
  position: absolute;
  inset: 3%;
  overflow: hidden;
  border-radius: 12px;
  pointer-events: none;
}

.vf-line::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
      transparent calc(50% - 26px),
      rgba(184, 170, 255, 0.4) calc(50% - 1.5px),
      var(--laser) calc(50% - 1.5px),
      var(--laser) calc(50% + 1.5px),
      rgba(184, 170, 255, 0.4) calc(50% + 1.5px),
      transparent calc(50% + 26px));
  transform: translateY(-50%);
  animation: vf-sweep 2.2s ease-in-out infinite alternate;
}

@keyframes vf-sweep {
  from { transform: translateY(-50%); }
  to { transform: translateY(50%); }
}

.vf.is-paused .vf-line::before {
  animation-play-state: paused;
}

/* The lock-on outline the app draws round a detected code. The scan
   line sweeps, the outline pops on, the result sheet slides up: one
   moment, in CSS, so it plays with or without JS. */
.vf-lock {
  position: absolute;
  inset: 8.5%;
  border: 3px solid #dcd5ff;
  border-radius: 14px;
  background: rgba(184, 170, 255, 0.16);
  box-shadow: 0 0 16px 3px rgba(184, 170, 255, 0.65);
  animation:
    vf-lock-in 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 1.5s both,
    vf-pulse 1.8s ease-in-out 2s infinite alternate;
}

@keyframes vf-lock-in {
  from { opacity: 0; transform: scale(1.07); }
  to { opacity: 1; transform: none; }
}

@keyframes vf-pulse {
  to { box-shadow: 0 0 24px 6px rgba(184, 170, 255, 0.9); }
}

.vf.is-paused .vf-line::before,
.vf.is-paused .vf-lock,
.vf.is-paused .vf-sheet,
.vf.is-paused .vf-hint {
  animation-play-state: paused;
}

.vf-hint {
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  margin: 0;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.35);
  color: #fff;
  font-size: 0.6875rem;
  font-weight: 500;
  line-height: 1.3;
  white-space: nowrap;
  animation: vf-fade-out 0.3s ease 1.6s both;
}

@keyframes vf-fade-out {
  to { opacity: 0; }
}

/* Result sheet: the app's bottom sheet, in its light theme */
.vf-sheet {
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: 8px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 9px;
  padding: 7px 7px 7px 8px;
  border-radius: 20px;
  background: #f7f4ff;
  color: #1b1830;
  box-shadow: 0 -6px 24px -8px rgba(0, 0, 0, 0.5);
  animation: vf-sheet-in 0.55s cubic-bezier(0.2, 0.8, 0.2, 1) 1.75s both;
}

@keyframes vf-sheet-in {
  from { opacity: 0; transform: translateY(115%); visibility: hidden; }
  to { opacity: 1; transform: none; visibility: visible; }
}

.vf-type {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(61, 123, 244, 0.12);
  color: #2f66d6;
}

.vf-type svg {
  width: 19px;
  height: 19px;
}

.vf-text {
  min-width: 0;
  line-height: 1.25;
}

.vf-text b {
  display: block;
  font-family: var(--f-display);
  font-size: 0.8125rem;
  font-weight: 600;
}

.vf-text span {
  display: block;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  font-size: 0.6875rem;
  color: #514c6b;
}

.vf-open {
  display: inline-grid;
  place-items: center;
  min-width: 56px;
  min-height: 44px;
  padding: 0 12px;
  border-radius: 14px;
  background: #4f3fe8;
  color: #fff;
  font-size: 0.8125rem;
  font-weight: 700;
  text-decoration: none;
}

.vf-open:hover {
  color: #fff;
  text-decoration: none;
  background: #3b2bd0;
}

.vf-open:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
  box-shadow: 0 0 0 4px #4f3fe8;
}

.vf figcaption {
  margin-top: 14px;
  padding-right: calc(var(--overlap) + 8px);
  font-size: 0.8125rem;
  line-height: 1.45;
  color: var(--fg-muted);
}

/* ---------- Tab strip (the app's bottom bar, up top) ---------- */

.tabs {
  position: sticky;
  top: var(--nav-h);
  z-index: 40;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  backdrop-filter: saturate(1.4) blur(14px);
}

.tabs-inner {
  max-width: var(--page-w);
  margin: 0 auto;
  padding: 6px var(--gut);
  display: flex;
  justify-content: center;
  gap: clamp(4px, 2vw, 16px);
}

.tabs a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 clamp(14px, 2.4vw, 22px);
  border-radius: 999px;
  color: var(--fg-muted);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.tabs a:hover {
  color: var(--fg);
  background: var(--bg-hover);
  text-decoration: none;
}

.tabs a[aria-current] {
  color: var(--fg);
  background: var(--accent-soft);
}

.tabs a[aria-current] svg {
  color: var(--accent);
}

.tabs svg {
  width: 20px;
  height: 20px;
}

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

.sec {
  max-width: var(--page-w);
  margin: 0 auto;
  padding: clamp(72px, 10vw, 136px) var(--gut) 0;
  scroll-margin-top: calc(var(--nav-h) + 40px);
}

.sec-head {
  margin-bottom: clamp(36px, 5vw, 64px);
}

.sec-lede {
  max-width: 58ch;
  margin: 0;
  font-size: clamp(1.0625rem, 1rem + 0.3vw, 1.1875rem);
  color: var(--fg-muted);
}

/* Hairline spec rows */
.specs {
  margin: 0;
  border-top: 1px solid var(--line-strong);
}

.specs > div {
  display: grid;
  grid-template-columns: minmax(9rem, 0.42fr) minmax(0, 1fr);
  gap: 6px 28px;
  padding: 18px 0 19px;
  border-bottom: 1px solid var(--line);
}

.specs dt {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 1.0625rem;
  line-height: 1.45;
  letter-spacing: -0.01em;
}

.specs dd {
  margin: 0;
  color: var(--fg-muted);
}

/* ---------- Scan ---------------------------------------------- */

.scan-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: center;
}

.scan-phones {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-bottom: 8%;
}

.phone-a {
  --device-w: clamp(220px, 21vw, 280px);
}

.phone-b {
  --device-w: clamp(200px, 19vw, 252px);
  margin: 16% 0 0 -9%;
}

.types {
  margin-top: clamp(64px, 9vw, 112px);
}

.types-table {
  width: 100%;
  margin: 0;
  border-collapse: collapse;
  font-size: 1rem;
}

.types-table th,
.types-table td {
  padding: 14px 20px 14px 0;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: none;
  vertical-align: middle;
  text-align: left;
}

.types-table thead th {
  padding-top: 0;
  padding-bottom: 10px;
  border-bottom-color: var(--line-strong);
  font-family: var(--f-body);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--fg-muted);
}

.types-table td {
  color: var(--fg-muted);
}

.types-table td:last-child {
  color: var(--fg);
  font-weight: 700;
  white-space: nowrap;
  padding-right: 0;
}

.types-table tbody th {
  width: 13rem;
  font-weight: 400;
}

.type-tag {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--fg);
}

.type-tag svg {
  width: 38px;
  height: 38px;
  padding: 8px;
  border-radius: 11px;
  stroke-width: 1.9;
  color: color-mix(in srgb, var(--t) calc(100% - var(--tag-amt)), var(--tag-mix));
  background: color-mix(in srgb, var(--t) var(--tag-bg), transparent);
}

.type-tag[data-type="url"] { --t: var(--t-url); }
.type-tag[data-type="wifi"] { --t: var(--t-wifi); }
.type-tag[data-type="contact"] { --t: var(--t-contact); }
.type-tag[data-type="email"] { --t: var(--t-email); }
.type-tag[data-type="phone"] { --t: var(--t-phone); }
.type-tag[data-type="text"] { --t: var(--t-text); }

.types-note {
  margin: 16px 0 0;
  font-size: 0.9375rem;
  color: var(--fg-muted);
}

/* ---------- History ------------------------------------------- */

.hist-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(32px, 8vw, 128px);
  align-items: center;
}

.hist-demo {
  margin-bottom: clamp(28px, 4vw, 44px);
}

html:not(.js) .hist-demo {
  display: none;
}

.seg {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  background: var(--bg-raised);
}

.seg button {
  min-height: 44px;
  padding: 0 16px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--fg-muted);
  font-family: var(--f-body);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.seg button:hover {
  color: var(--fg);
  background: var(--bg-hover);
}

.seg button[aria-pressed="true"] {
  background: var(--accent);
  color: var(--accent-ink);
}

.hist-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

.hist-phone {
  --device-w: clamp(240px, 23vw, 296px);
}

.hist-figure figcaption {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--fg-muted);
}

/* ---------- Generate (the live one) ---------------------------- */

.gen {
  --m: 4px;
  position: relative;
  padding: clamp(22px, 3.6vw, 52px);
  border: 1px solid var(--line-strong);
  background: var(--bg-raised);
}

/* Registration marks: three finder patterns on the corners and an
   alignment pattern on the fourth, each with its light separator. */
.gen-eye {
  --m: 4px;
  position: absolute;
  color: var(--mark);
  background: var(--bg);
  box-shadow: 0 0 0 var(--m) var(--bg);
}

.gen-eye-tl { top: calc(var(--m) * -3.5 - 0.5px); left: calc(var(--m) * -3.5 - 0.5px); }
.gen-eye-tr { top: calc(var(--m) * -3.5 - 0.5px); right: calc(var(--m) * -3.5 - 0.5px); }
.gen-eye-bl { bottom: calc(var(--m) * -3.5 - 0.5px); left: calc(var(--m) * -3.5 - 0.5px); }

.gen-align {
  --m: 4px;
  position: absolute;
  right: calc(var(--m) * -2.5 - 0.5px);
  bottom: calc(var(--m) * -2.5 - 0.5px);
  width: calc(var(--m) * 5);
  height: calc(var(--m) * 5);
  padding: var(--m);
  border: var(--m) solid var(--mark);
  background: var(--bg);
  box-shadow: 0 0 0 var(--m) var(--bg);
}

.gen-align::before {
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  background: var(--mark);
}

.gen-form {
  margin: 0;
}

.gen-types {
  min-width: 0;
  margin: 0 0 clamp(24px, 3vw, 36px);
  padding: 0;
  border: 0;
}

.types-strip {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 3px;
  margin: -3px;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  scrollbar-color: var(--line-strong) transparent;
}

.type {
  position: relative;
  flex: 1 0 84px;
  scroll-snap-align: start;
}

.type input,
.swatch input,
.chip input,
.segbtn input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.type > span {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  height: 86px;
  padding: 0 6px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--fg-muted);
  font-size: 0.8125rem;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.type svg {
  width: 26px;
  height: 26px;
}

.type > span:hover {
  color: var(--fg);
  border-color: var(--line-strong);
}

.type input:checked + span {
  color: var(--fg);
  font-weight: 700;
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
  background: var(--accent-soft);
}

.type input:checked + span svg {
  color: var(--accent);
}

.type input:focus-visible + span,
.chip input:focus-visible + span,
.segbtn input:focus-visible + span {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.gen-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 400px);
  grid-template-rows: auto auto 1fr;
  grid-template-areas:
    "fields preview"
    "custom preview"
    "custom actions";
  column-gap: clamp(32px, 5vw, 80px);
  row-gap: 24px;
}

.gen-preview { grid-area: preview; align-self: start; }
.gen-in { grid-area: fields; }
.gen-actions { grid-area: actions; }
.gen-custom { grid-area: custom; align-self: start; }

/* Preview — the app's _PreviewHero: tinted backdrop, white card */
.gen-card {
  padding: clamp(16px, 2vw, 24px);
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 17%, var(--bg-raised)), var(--bg-inset));
}

.gen-qr {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 10px 24px -10px rgba(30, 20, 90, 0.28);
}

.gen-qr svg {
  display: block;
  width: 100%;
  height: 100%;
}

.gen-empty {
  margin: 0;
  padding: 24px;
  max-width: 18em;
  text-align: center;
  font-size: 0.9375rem;
  color: #5f5f66;
}

.gen-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  margin: 14px 0 0;
  font-size: 0.9375rem;
  font-weight: 600;
  text-align: center;
}

.gen-status svg {
  width: 18px;
  height: 18px;
}

.gen-status[data-tone="ready"] { color: var(--accent); }
.gen-status[data-tone="idle"] { color: var(--fg-muted); }
.gen-status[data-tone="error"] { color: var(--err); }

.gen-meta {
  display: grid;
  grid-template-columns: 0.8fr 1fr 1.25fr;
  margin: 18px 0 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.gen-meta > div {
  padding: 9px 12px 10px;
  border-left: 1px solid var(--line);
}

.gen-meta > div:first-child {
  border-left: 0;
  padding-left: 0;
}

.gen-meta dt {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--fg-muted);
}

.gen-meta dd {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* Fields */
.gen-fields-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.app-qr_scanner main .gen-fields-title {
  margin: 0;
  font-size: 1.1875rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.gen-clear {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-right: -10px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--fg-muted);
  cursor: pointer;
}

.gen-clear svg {
  width: 22px;
  height: 22px;
}

.gen-clear:hover:not(:disabled) {
  color: var(--fg);
  background: var(--bg-hover);
}

.gen-clear:disabled {
  opacity: 0.35;
  cursor: default;
}

.gen-fields {
  display: grid;
  gap: 14px;
}

.field label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--fg-muted);
}

.field input,
.field textarea {
  display: block;
  width: 100%;
  min-height: 52px;
  padding: 13px 16px;
  border: 1px solid transparent;
  border-radius: 12px;
  background: var(--bg-inset);
  color: var(--fg);
  font-family: var(--f-body);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.5;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.field textarea {
  min-height: 100px;
  resize: vertical;
}

.field input::placeholder,
.field textarea::placeholder {
  color: color-mix(in srgb, var(--fg-muted) 75%, transparent);
}

.field input:hover,
.field textarea:hover {
  border-color: var(--line-strong);
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
  background: var(--bg-raised);
}

/* Actions */
.gen-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  align-content: start;
}

.btn-fill,
.btn-line {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  padding: 0 14px;
  border-radius: 14px;
  font-family: var(--f-body);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.2;
  cursor: pointer;
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.btn-fill svg,
.btn-line svg {
  width: 20px;
  height: 20px;
}

.btn-fill {
  border: 0;
  background: var(--accent);
  color: var(--accent-ink);
}

.btn-fill:hover:not(:disabled) {
  background: var(--accent-strong);
}

.btn-line {
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--accent);
}

.btn-line:hover:not(:disabled) {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.btn-fill:focus-visible,
.btn-line:focus-visible,
.seg button:focus-visible,
.gen-clear:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn-fill:disabled,
.btn-line:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.gen-toast {
  grid-column: 1 / -1;
  min-height: 1.5em;
  margin: 2px 0 0;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--fg-muted);
  text-align: center;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.gen-toast.is-on {
  opacity: 1;
}

/* Customize — the app's expander */
.gen-custom {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--bg);
}

.gen-custom summary {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 2px 12px;
  min-height: 56px;
  padding: 16px 56px 16px 20px;
  list-style: none;
  cursor: pointer;
  border-radius: 16px;
}

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

.gen-custom summary::after {
  content: "";
  position: absolute;
  right: 24px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--fg-muted);
  border-bottom: 2px solid var(--fg-muted);
  transform: translateY(-75%) rotate(45deg);
  transition: transform 0.2s ease;
}

.gen-custom[open] summary::after {
  transform: translateY(-25%) rotate(-135deg);
}

.gen-custom summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.gen-custom-title {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 1.0625rem;
}

.gen-summary {
  font-size: 0.875rem;
  color: var(--fg-muted);
}

.gen-custom-body {
  display: grid;
  gap: 22px;
  padding: 2px 20px 22px;
}

.opt {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.opt legend {
  padding: 0;
  margin-bottom: 10px;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--fg);
}

.swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.swatch {
  position: relative;
}

.swatch > span {
  position: relative;
  display: block;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--sw);
  box-shadow: 0 0 0 1px var(--line-strong);
  cursor: pointer;
  transition: box-shadow 0.15s ease;
}

.swatch input:checked + span {
  box-shadow: 0 0 0 3px var(--bg), 0 0 0 5px var(--accent);
}

.swatch input:checked + span::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 46%;
  width: 13px;
  height: 7px;
  border-left: 2.5px solid #fff;
  border-bottom: 2.5px solid #fff;
  transform: translate(-50%, -50%) rotate(-45deg);
}

.swatch input:focus-visible + span {
  outline: 2px solid var(--accent);
  outline-offset: 7px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip > span {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 17px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.chip > span:hover,
.segbtn > span:hover {
  background: var(--bg-hover);
}

.chip input:checked + span {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.gen-blurb {
  margin: 8px 0 0;
  font-size: 0.875rem;
  color: var(--fg-muted);
}

.opt-pair {
  display: flex;
  flex-wrap: wrap;
  gap: 22px 36px;
}

.segs {
  display: inline-flex;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
}

.segbtn {
  position: relative;
}

.segbtn > span {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
}

.segbtn:first-child > span { border-radius: 11px 0 0 11px; }
.segbtn:last-child > span { border-radius: 0 11px 11px 0; }
.segbtn + .segbtn > span { border-left: 1px solid var(--line-strong); }

.segbtn input:checked + span {
  background: var(--accent-soft);
  color: var(--fg);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.gen-noscript {
  margin: 24px 0 0;
  color: var(--fg-muted);
}

/* After the generator: the real Customize screen */
.gen-after {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(32px, 7vw, 104px);
  align-items: center;
  margin-top: clamp(64px, 9vw, 112px);
  padding-left: clamp(0px, 6vw, 96px);
}

.gen-phone {
  --device-w: clamp(210px, 19vw, 250px);
}

.gen-after-copy p {
  max-width: 54ch;
  color: var(--fg-muted);
}

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

.trust {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
}

.trust li {
  padding: 20px 28px 24px 0;
  border-bottom: 1px solid var(--line);
  color: var(--fg-muted);
}

.trust li + li {
  padding-left: 28px;
  border-left: 1px solid var(--line);
}

.trust b {
  display: block;
  margin-bottom: 6px;
  font-family: var(--f-display);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--fg);
}

.fine {
  max-width: 72ch;
  margin: 24px 0 0;
  font-size: 0.9375rem;
  color: var(--fg-muted);
}

.fine a {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

/* ---------- Get it -------------------------------------------- */

.get {
  position: relative;
  max-width: calc(var(--page-w) - 2 * var(--gut));
  margin: clamp(88px, 12vw, 152px) auto clamp(64px, 9vw, 112px);
  border: 1px solid var(--line-strong);
  width: calc(100% - 2 * var(--gut));
}

.get-eye {
  --m: 7px;
  position: absolute;
  color: var(--fg);
}

.get-eye-tl { top: clamp(16px, 3vw, 32px); left: clamp(16px, 3vw, 32px); }
.get-eye-tr { top: clamp(16px, 3vw, 32px); right: clamp(16px, 3vw, 32px); }
.get-eye-bl { bottom: clamp(16px, 3vw, 32px); left: clamp(16px, 3vw, 32px); }

.get-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: clamp(84px, 11vw, 136px) var(--gut);
}

.get-icon {
  width: 72px;
  height: 72px;
  margin-bottom: 24px;
  border-radius: 18px;
  box-shadow: 0 0 0 1px var(--line);
}

.app-qr_scanner main .get h2 {
  max-width: 16ch;
  margin-bottom: 0.3em;
}

.get p {
  margin: 0 0 28px;
  color: var(--fg-muted);
}

.get .store-badges {
  justify-content: center;
}

/* ---------- Responsive ---------------------------------------- */

@media (max-width: 1080px) {
  .gen-body {
    grid-template-columns: minmax(0, 1fr) minmax(260px, 340px);
  }
}

@media (max-width: 980px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-stage {
    justify-content: center;
    padding: 8px 0 0 clamp(90px, 22vw, 200px);
  }

  .hero-phone {
    margin-right: 0;
  }

  .vf {
    left: max(0px, calc(50% - 300px));
    bottom: 4%;
  }

  .qr-hero::before {
    -webkit-mask-image: radial-gradient(ellipse 80% 45% at 50% 72%, #000 30%, transparent 78%);
    mask-image: radial-gradient(ellipse 80% 45% at 50% 72%, #000 30%, transparent 78%);
  }

  .scan-grid,
  .hist-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  /* header, switcher, phone, then the details */
  .hist-copy {
    display: contents;
  }

  .hist-copy > .sec-head { order: 1; margin-bottom: 0; }
  .hist-demo { order: 2; margin-bottom: 0; }
  .hist-figure { order: 3; }
  .hist-copy > .specs { order: 4; }

  .gen-after {
    padding-left: 0;
  }
}

@media (max-width: 860px) {
  .gen-body {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: none;
    grid-template-areas:
      "preview"
      "fields"
      "actions"
      "custom";
  }

  .gen-preview {
    width: 100%;
    max-width: 420px;
    justify-self: center;
  }

  .trust {
    grid-template-columns: minmax(0, 1fr);
  }

  .trust li + li {
    padding-left: 0;
    border-left: 0;
  }
}

@media (max-width: 640px) {
  .app-qr_scanner main h2 {
    max-width: none;
  }

  .hero-stage {
    padding-left: 34%;
  }

  .hero-phone {
    --device-w: min(58vw, 250px);
    --device-bezel: 8px;
    --device-radius: 38px;
  }

  .vf {
    left: 0;
    bottom: 3%;
    width: min(50vw, 210px);
  }

  .vf-screen {
    padding: 14px 14px 60px;
    border-radius: 24px;
  }

  .vf-hint {
    font-size: 0.625rem;
  }

  /* the "scan this with your phone" note is for computers */
  .vf figcaption {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }

  .specs > div {
    grid-template-columns: minmax(0, 1fr);
  }

  .scan-phones {
    padding-bottom: 0;
  }

  .phone-a {
    --device-w: min(52vw, 240px);
  }

  .phone-b {
    --device-w: min(46vw, 210px);
  }

  .types-table thead {
    display: none;
  }

  .types-table tr {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 6px 16px;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
  }

  .types-table tbody tr:first-child {
    border-top: 1px solid var(--line-strong);
  }

  .types-table th,
  .types-table td {
    padding: 0;
    border: 0;
  }

  .types-table tbody th {
    width: auto;
  }

  .types-table td:nth-child(2) {
    grid-column: 1 / -1;
    grid-row: 2;
    padding-left: 50px;
    font-size: 0.9375rem;
  }

  .types-table td:last-child {
    grid-column: 2;
    grid-row: 1;
  }

  .gen-after {
    grid-template-columns: minmax(0, 1fr);
    justify-items: center;
  }

  .gen-after-copy {
    justify-self: stretch;
  }

  .get-eye {
    --m: 5px;
  }
}

@media (max-width: 440px) {
  .gen-actions {
    grid-template-columns: minmax(0, 1fr);
  }

  .tabs a {
    padding: 0 12px;
    gap: 6px;
  }

  .gen-meta {
    grid-template-columns: 0.7fr 1fr 1.3fr;
  }

  .gen-meta > div {
    padding-left: 8px;
    padding-right: 6px;
  }

  .gen-meta dd {
    font-size: 0.9375rem;
  }
}

/* ---------- Motion preferences -------------------------------- */

@media (prefers-reduced-motion: reduce) {
  /* the scan line holds still over the code, already locked on */
  .vf-line::before {
    animation: none;
    transform: translateY(-14%);
  }

  .vf-lock,
  .vf-sheet {
    animation: none;
  }

  .vf-hint {
    animation: none;
    opacity: 0;
  }
}