/* Receipts. Tokens first: change one value and both themes follow.
   Two surface languages, on purpose:
   - PAPER (ink border + hard offset shadow, 2px radius): the receipt, the primary button.
   - CHROME (hairline border, pill radius): header, chips, secondary controls.
   One document scroll on every page: only the thin header is fixed. The receipt is an overlay. */
:root {
  color-scheme: light;
  --bg: #faf6ea; --surface: #fffdf6; --ink: #1d1a16; --muted: #5b564e;
  --line: rgba(29, 26, 22, .14); --accent: #1f3d2f; --accent-ink: #faf6ea; --shadow: #1d1a16;
  --glass: rgba(250, 246, 234, .82);
  --match: #14663f; --match-bg: #dcefe3;
  --partial: #8a5200; --partial-bg: #f9ebcf;
  --skip: #3a455e; --skip-bg: #e3e7f0;
  --close: #6e3a70; --close-bg: #f0e3f0;
  --track: #e8e1cf; --glow: #d4ff4d;
  --font-display: "Instrument Sans", "Space Grotesk", system-ui, sans-serif;
  --font-sans: "Space Grotesk", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "Space Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --r-paper: 2px; --r-pill: 999px;
  --header-h: 64px;
  --s-1: 4px; --s-2: 8px; --s-3: 12px; --s-4: 16px; --s-5: 24px; --s-6: 32px; --s-7: 48px; --s-8: 72px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-expo: cubic-bezier(0.16, 1, 0.3, 1);
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #171310; --surface: #241e1a; --ink: #f1ece1; --muted: #b3aa9c;
  --line: rgba(241, 236, 225, .16); --accent: #8fd6a9; --accent-ink: #11231a; --shadow: #000;
  --glass: rgba(23, 19, 16, .78);
  --match: #86e0ae; --match-bg: #1d3a2b;
  --partial: #f2bf62; --partial-bg: #3d2e12;
  --skip: #aebcd9; --skip-bg: #26304a;
  --close: #e3b8e0; --close-bg: #3a2339;
  --track: #3a322b;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; font-size: 16px; overflow-x: clip; scrollbar-gutter: stable; scroll-padding-top: calc(var(--header-h) + 12px); }
@media (min-width: 1024px) { html { font-size: 17px; } }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 1rem/1.55 var(--font-sans); -webkit-font-smoothing: antialiased; overflow-x: clip; -webkit-tap-highlight-color: transparent; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 500; letter-spacing: -.01em; text-wrap: balance; margin: 0; }
p { text-wrap: pretty; margin: 0; }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; }
img { max-width: 100%; }
[hidden] { display: none !important; }
::selection { background: var(--accent); color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
[tabindex="-1"]:focus { outline: none; } /* headings are focused only so screen readers announce the new step */
.skip { position: fixed; left: 12px; top: -60px; z-index: 100; background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: var(--r-pill); text-decoration: none; transition: top .15s; }
.skip:focus { top: 12px; }
.kicker { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .2em; text-transform: uppercase; }
.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
@media (min-width: 768px) { .wrap { padding: 0 28px; } }
h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); line-height: 1.05; letter-spacing: -.025em; }
.lede { margin-top: 10px; color: var(--muted); font-size: 1.05rem; max-width: 62ch; }
.status { margin: 14px 0 0; min-height: 1.5em; font-size: .95rem; color: var(--muted); }
.status.err { color: var(--skip); font-weight: 500; }

/* ---------- header (the only fixed element) ---------- */
.site-header { position: sticky; top: 0; z-index: 40; background: var(--glass); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.bar { height: var(--header-h); display: flex; align-items: center; gap: 8px; }
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font: 600 1.35rem/1 var(--font-display); letter-spacing: -.02em; min-height: 44px; }
.nav { display: flex; gap: 2px; margin-left: auto; }
.nav a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 14px; border-radius: var(--r-pill); text-decoration: none; font-weight: 500; font-size: .95rem; color: var(--muted); }
.nav a[aria-current="page"] { color: var(--ink); background: color-mix(in srgb, var(--ink) 8%, transparent); }
@media (max-width: 440px) { .logo span { display: none; } .nav a { padding: 0 10px; } }

.icon-btn { display: inline-grid; place-items: center; width: 44px; height: 44px; border: 0; background: none; border-radius: var(--r-pill); color: var(--muted); }
.icon-btn:disabled { opacity: .35; cursor: default; }
.icon-btn .i { grid-area: 1 / 1; display: grid; place-items: center; transition: opacity .2s ease-out; }
.icon-btn .i + .i { opacity: 0; }
[data-theme="dark"] .icon-btn .i:first-child { opacity: 0; }
[data-theme="dark"] .icon-btn .i + .i { opacity: 1; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 10px 18px; border-radius: var(--r-paper); border: 1.5px solid var(--ink); background: var(--surface); color: var(--ink); font: 600 .95rem var(--font-display); text-decoration: none; }
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: 3px 3px 0 var(--shadow); }
.btn:disabled { opacity: .55; cursor: default; }

/* hover only where hover exists */
@media (hover: hover) and (pointer: fine) {
  .btn-primary, .card, .sample { transition: transform .18s var(--ease-out), box-shadow .18s var(--ease-out); }
  .btn-primary:hover { transform: translate(-2px, -2px); box-shadow: 5px 5px 0 var(--shadow); }
  .card:hover, .sample:hover { transform: translate(-2px, -2px); box-shadow: 4px 4px 0 var(--shadow); border-color: var(--ink); }
  .icon-btn:hover, .nav a:hover { background: color-mix(in srgb, var(--ink) 8%, transparent); color: var(--ink); }
  .go-on svg { transition: transform .2s var(--ease-out); }
  .go-on a:hover svg { transform: translateX(3px); }
}

/* ---------- stepper ---------- */
.stepper { display: flex; gap: 10px; list-style: none; padding: 0; margin: 22px 0 0; font: 400 .72rem/1 var(--font-mono); letter-spacing: .14em; text-transform: uppercase; }
.stepper li { flex: 1; display: flex; align-items: center; gap: 8px; color: var(--muted); border-top: 2px solid var(--line); padding-top: 10px; }
.stepper li.done { border-color: var(--accent); color: var(--ink); }
.stepper li[aria-current="step"] { border-color: var(--ink); color: var(--ink); }
.stepper .n { width: 22px; height: 22px; border-radius: 50%; border: 1.5px solid currentColor; display: inline-grid; place-items: center; font-size: .68rem; letter-spacing: 0; flex: 0 0 auto; }
.stepper li.done .n { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
@media (max-width: 560px) { .stepper .t { display: none; } .stepper li[aria-current="step"] .t { display: inline; } .stepper li[aria-current="step"] { flex: 2; } }

section[id^="step-"] { padding-top: var(--s-5); }

/* ---------- panels ---------- */
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.panel h2 { font-size: 1.25rem; margin-bottom: 4px; }
.panel .sub { color: var(--muted); font-size: .9rem; margin-bottom: 12px; }

/* ---------- step 1: choose ---------- */
.choose { display: grid; gap: var(--s-4); margin-top: var(--s-5); grid-template-columns: minmax(0, 1fr); }
.choose .panel { display: flex; flex-direction: column; }
.choose .drop { flex: 1; }
@media (min-width: 900px) { .choose { grid-template-columns: 1fr 1fr; gap: var(--s-5); align-items: stretch; } }
.samples { display: grid; gap: 10px; }
.sample { display: grid; grid-template-columns: 64px 1fr; grid-template-areas: "img name" "img line"; column-gap: 14px; align-items: center; min-height: 84px; padding: 10px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg); text-decoration: none; }
.sample img { grid-area: img; width: 64px; height: 64px; border-radius: 50%; object-fit: cover; object-position: 50% 30%; }
.sample .s-name { grid-area: name; font: 600 1.05rem var(--font-display); align-self: end; }
.sample .s-line { grid-area: line; color: var(--muted); font-size: .88rem; align-self: start; }
.drop { position: relative; display: grid; justify-items: center; align-content: center; gap: 2px; min-height: 168px; padding: 24px 16px; text-align: center; border: 2px dashed var(--ink); border-radius: 14px; background: var(--bg); cursor: pointer; }
.drop-ic { color: var(--accent); margin-bottom: 4px; }
.drop-main { font: 600 1.1rem var(--font-display); }
.drop-sub { color: var(--muted); font-size: .9rem; }
.drop input { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; font-size: 16px; }
.drop:focus-within { outline: 2px solid var(--accent); outline-offset: 3px; }
.drop.over { border-style: solid; background: color-mix(in srgb, var(--accent) 10%, var(--bg)); }
.tips { list-style: none; padding: 0; margin: 14px 0; display: grid; gap: 8px 14px; grid-template-columns: 1fr 1fr; font-size: .88rem; }
.tips li { display: flex; align-items: center; gap: 8px; }
.tips svg { flex: 0 0 auto; color: var(--accent); }
.btn-block { width: 100%; margin-top: 10px; }
.cam { display: grid; gap: 12px; margin-top: 4px; }
.cam-view { position: relative; width: 100%; max-width: 340px; margin: 0 auto; aspect-ratio: 3 / 4; border: 1.5px solid var(--ink); border-radius: var(--r-paper); overflow: hidden; background: #0d0b09; }
.cam-view video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transform: scaleX(-1); }
.cam-oval { position: absolute; left: 17%; right: 17%; top: 9%; bottom: 9%; border: 2px dashed #fff; border-radius: 50%; box-shadow: 0 0 0 999px rgba(0, 0, 0, .35); pointer-events: none; }
.cam-count { position: absolute; inset: 0; display: grid; place-items: center; font: 600 5rem var(--font-display); color: #fff; text-shadow: 0 2px 12px rgba(0, 0, 0, .6); pointer-events: none; }
.cam-hint { margin: 0; color: var(--muted); font-size: .9rem; text-align: center; }
.cam-btns { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.drop.paused { opacity: .55; cursor: not-allowed; border-style: dotted; }
.drop.paused input { cursor: not-allowed; }
.live-sim { display: grid; gap: 6px; justify-items: center; margin-top: 10px; text-align: center; }
.privacy { display: flex; gap: 10px; align-items: flex-start; color: var(--muted); font-size: .82rem; }
.privacy svg { flex: 0 0 auto; color: var(--accent); margin-top: 2px; }

/* ---------- a photo with a mask ---------- */
.photo { position: relative; aspect-ratio: var(--ar, .8); width: 100%; margin: 0 auto; border: 1.5px solid var(--ink); border-radius: var(--r-paper); overflow: hidden; background: var(--track); line-height: 0; }
.photo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 35%; display: block; }
.photo img.mask { pointer-events: none; opacity: 0; transition: opacity .35s var(--ease-out); filter: drop-shadow(0 0 2px var(--glow)) drop-shadow(0 0 2px var(--glow)) drop-shadow(0 0 1px #fff); }
.photo img.mask.on { opacity: 1; }
.photo.hasmask > img:first-child { filter: brightness(.72); }
.photo .tag { position: absolute; left: 8px; bottom: 8px; z-index: 2; max-width: calc(100% - 16px); background: color-mix(in srgb, var(--ink) 90%, transparent); color: var(--bg); font: 400 .72rem/1.3 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; padding: 5px 9px; border-radius: 2px; }

/* ---------- step 2: analyze ---------- */
.analyze { display: grid; gap: 24px; margin-top: 22px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 760px) { .analyze { grid-template-columns: 300px minmax(0, 1fr); align-items: start; gap: 36px; } }
.analyze .photo { max-width: 320px; }
.stages { list-style: none; margin: 0; padding: 0; }
.stages li { display: flex; align-items: center; gap: 12px; padding: 10px 0; color: var(--muted); border-bottom: 1.5px dashed var(--line); }
.stages li::before { content: ""; width: 14px; height: 14px; border-radius: 50%; border: 1.5px solid currentColor; flex: 0 0 auto; }
.stages li.now { color: var(--ink); font-weight: 600; }
.stages li.now::before { background: var(--accent); border-color: var(--accent); animation: pulse 1.2s ease-in-out infinite; }
.stages li.done { color: var(--ink); }
.stages li.done::before { background: var(--match); border-color: var(--match); }
@keyframes pulse { 50% { opacity: .35; } }
.timer { margin: 14px 0 0; color: var(--muted); font-size: .9rem; }
.an-actions { margin-top: 16px; }
.an-error { margin-top: 18px; padding: 16px; border: 1.5px solid var(--skip); border-radius: 12px; background: var(--skip-bg); color: var(--skip); display: grid; gap: 12px; justify-items: start; }
.photo.scanning::after { content: ""; position: absolute; left: 0; right: 0; top: -20%; height: 20%; z-index: 2; pointer-events: none;
  background: linear-gradient(to bottom, transparent, color-mix(in srgb, var(--glow) 70%, transparent), transparent); animation: sweep 1.5s linear infinite; }
@keyframes sweep { to { top: 100%; } }

/* ---------- step 3: results (one scroll) ---------- */
.skin { display: grid; gap: var(--s-5); grid-template-columns: minmax(0, 1fr); }
@media (min-width: 760px) { .skin { grid-template-columns: 300px minmax(0, 1fr); gap: 40px; align-items: start; } }
.skin-photo .photo { max-width: 340px; }
.skin-main > .kicker { color: var(--muted); margin: 0 0 8px; }
.skin-main h1 { font-size: clamp(1.8rem, 3.8vw, 2.7rem); max-width: 18ch; }
.meta { margin-top: 8px; color: var(--muted); font-size: .92rem; }
.skin-main .bars { margin-top: 18px; }
.hint { margin-top: 8px; color: var(--muted); font-size: .82rem; }
.skin-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
@media (max-width: 559px) { .skin-actions .btn { flex: 1 1 100%; } }

.bars { display: grid; gap: 0 28px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 560px) { .bars { grid-template-columns: 1fr 1fr; } }
.bar-row { display: grid; grid-template-columns: 100px 1fr 28px; align-items: center; gap: 10px; min-height: 32px; width: 100%; padding: 2px 4px; border: 0; background: none; text-align: left; border-radius: 6px; }
@media (pointer: coarse) { .bar-row { min-height: 44px; } }
.bar-row .name { font-size: .9rem; }
.bar-row .track { position: relative; height: 8px; border-radius: 99px; background: var(--track); }
.bar-row .fill { position: absolute; inset: 0 auto 0 0; border-radius: 99px; }
.bar-row .tick { position: absolute; top: -2px; bottom: -2px; width: 1px; background: var(--muted); opacity: .5; }
.bar-row b { text-align: right; font-size: .85rem; }
.bar-row[aria-pressed="true"] .name { font-weight: 700; }
.bar-row[aria-pressed="true"] { background: color-mix(in srgb, var(--ink) 6%, transparent); }
.c-match { background: var(--match); } .c-partial { background: var(--partial); } .c-skip { background: var(--skip); }

.shelf-head { margin: var(--s-7) 0 var(--s-4); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; }
.shelf-head h2 { font-size: 1.6rem; }
.filters { display: flex; gap: 8px; overflow-x: auto; padding: 2px; margin: -2px; }
.chip { flex: 0 0 auto; min-height: 44px; padding: 8px 16px; border: 1px solid var(--line); border-radius: var(--r-pill); background: var(--surface); font-weight: 500; font-size: .92rem; }
.chip[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.shelf { display: grid; gap: 12px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 560px) { .shelf { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1000px) { .shelf { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.card { text-align: left; display: grid; gap: 4px; padding: 16px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); min-height: 44px; }
.card .brand { font-family: var(--font-mono); font-size: .68rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); }
.card .name { font: 600 1.05rem/1.25 var(--font-display); }
.card .claim { font-size: .9rem; color: var(--muted); }
.badge { display: inline-flex; align-items: center; gap: 6px; width: fit-content; padding: 3px 10px 3px 7px; border-radius: var(--r-pill); font: 700 .72rem var(--font-mono); letter-spacing: .1em; text-transform: uppercase; }
.b-match { color: var(--match); background: var(--match-bg); }
.b-partial { color: var(--partial); background: var(--partial-bg); }
.b-skip { color: var(--skip); background: var(--skip-bg); }
.b-close { color: var(--close); background: var(--close-bg); }
.b-inconclusive { color: var(--muted); background: var(--track); }

.claim { margin-top: var(--s-7); }
.cartbox { display: grid; gap: var(--s-3); }
.cartbox textarea { width: 100%; min-height: 120px; padding: 10px 14px; border: 1.5px solid var(--ink); border-radius: var(--r-paper); background: var(--surface); font: 400 1rem/1.5 var(--font-sans); color: var(--ink); resize: vertical; }
.cartbox textarea:focus-visible { outline-offset: 0; box-shadow: 3px 3px 0 var(--accent); }
.cartbtns { display: flex; gap: var(--s-2); flex-wrap: wrap; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
#cartOut { margin-top: var(--s-4); display: grid; gap: var(--s-3); }
.cart-total { display: flex; justify-content: space-between; align-items: baseline; gap: var(--s-3); flex-wrap: wrap; padding: var(--s-3) 0; border-top: 2px solid var(--ink); font: 700 .9rem var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }
.cart-total b { font-size: 1.3rem; }
.cart-row { display: grid; grid-template-columns: auto 1fr auto; gap: var(--s-3); align-items: center; text-align: left; padding: var(--s-3); border: 1px solid var(--line); border-radius: 10px; background: var(--surface); min-height: 44px; }
.cart-row .name { font-weight: 500; } .cart-row .why { grid-column: 2 / -1; color: var(--muted); font-size: .85rem; }
.flat { display: flex; align-items: center; gap: var(--s-3); flex-wrap: wrap; margin: var(--s-2) 0 var(--s-3); }
.card.changed { border-color: var(--close); box-shadow: 3px 3px 0 var(--close); }
.cart-note { color: var(--muted); font-size: .8rem; margin: 0; }
@media (min-width: 600px) { .cart-row { grid-template-columns: 124px 1fr auto; } .cart-row .badge { justify-self: start; } }
.panel a { text-underline-offset: 3px; }

footer { margin-top: var(--s-8); border-top: 1.5px solid var(--ink); padding: 26px 0 40px; color: var(--muted); font-size: .85rem; }
footer .wrap { display: grid; gap: var(--s-3); }
@media (min-width: 900px) { footer .wrap { grid-template-columns: 1fr 1.5fr 1fr; gap: var(--s-6); align-items: start; } }
footer a { color: var(--ink); text-underline-offset: 3px; }

/* ---------- the receipt (paper) ---------- */
.receipt { background: var(--surface); border: 1.5px solid var(--ink); border-radius: var(--r-paper); box-shadow: 4px 4px 0 var(--shadow); padding: 14px 18px 12px; }
.receipt .top { display: flex; justify-content: space-between; align-items: center; gap: 10px; color: var(--muted); }
.receipt .stamp { display: inline-flex; align-items: center; gap: 8px; margin: 12px 0 2px; padding: 4px 12px 4px 8px; border: 1.5px solid currentColor; border-radius: 3px; font: 700 1.05rem var(--font-mono); letter-spacing: .16em; text-transform: uppercase; transform: rotate(-2deg); }
.receipt .stamp.b-match { color: var(--match); background: transparent; } .receipt .stamp.b-partial { color: var(--partial); background: transparent; } .receipt .measured { margin-top: var(--s-3); padding: var(--s-3); border: 1px dashed var(--line); display: grid; gap: var(--s-2); justify-items: start; } .receipt .measured p { margin: 0; font-size: .85rem; color: var(--muted); }
.receipt .stamp.b-close { color: var(--close); background: transparent; } .receipt .stamp.b-skip { color: var(--skip); background: transparent; } .receipt .stamp.b-inconclusive { color: var(--muted); background: transparent; }
.receipt h3 { font-size: 1.2rem; margin: 8px 0 4px; }
.receipt .reason { font-size: 1rem; margin-bottom: 12px; }
.receipt dl { margin: 0; border-top: 1.5px dashed var(--line); }
.receipt dl > div { display: flex; align-items: baseline; gap: 8px; padding: 8px 0; border-bottom: 1.5px dashed var(--line); font-size: .88rem; }
.receipt dt { text-transform: uppercase; letter-spacing: .08em; font-family: var(--font-mono); font-size: .75rem; }
.receipt dd { margin: 0; }
.receipt .dots { flex: 1; border-bottom: 2px dotted var(--line); transform: translateY(-3px); }
.receipt .foot { margin-top: 10px; color: var(--muted); font-size: .78rem; }

/* ---------- receipt overlay: bottom sheet on phones, centered slip from 900px ---------- */
.backdrop { position: fixed; inset: 0; z-index: 50; background: rgba(0, 0, 0, .5); opacity: 0; pointer-events: none; transition: opacity .25s ease-out; }
.backdrop[data-open="true"] { opacity: 1; pointer-events: auto; }
.overlay { position: fixed; z-index: 60; left: 0; right: 0; bottom: 0; max-height: 90dvh; overflow-y: auto; overscroll-behavior: contain; background: var(--surface); border-top: 1.5px solid var(--ink); border-radius: 18px 18px 0 0; padding: 8px 16px calc(16px + env(safe-area-inset-bottom)); transform: translateY(105%); transition: transform .3s var(--ease-expo), visibility 0s linear .3s; visibility: hidden; }
.overlay[data-open="true"] { transform: none; visibility: visible; transition: transform .3s var(--ease-expo), visibility 0s; }
.overlay .grab { width: 44px; height: 4px; border-radius: 4px; background: var(--line); margin: 0 auto 4px; }
.ov-bar { display: flex; align-items: center; justify-content: space-between; }
.ov-nav { display: flex; align-items: center; gap: 2px; }
.ov-count { min-width: 5.5ch; text-align: center; color: var(--muted); font-size: .82rem; }
.ov-body { display: grid; gap: 14px; }
.ov-photo .photo { height: min(36dvh, 330px); width: auto; max-width: 100%; }
.ov-receipt .receipt { border: 0; box-shadow: none; padding: 0; animation: print .4s var(--ease-expo) both; }
@keyframes print { from { clip-path: inset(0 0 100% 0); } to { clip-path: inset(0 -8px -8px -8px); } }
@media (min-width: 900px) {
  .overlay { left: 50%; top: 50%; right: auto; bottom: auto; width: min(860px, calc(100vw - 48px)); max-height: calc(100dvh - 48px); border: 1.5px solid var(--ink); border-radius: var(--r-paper); box-shadow: 6px 6px 0 var(--shadow); padding: 8px 20px 22px; transform: translate(-50%, -47%) scale(.98); opacity: 0; transition: opacity .2s ease-out, transform .25s var(--ease-expo), visibility 0s linear .25s; }
  .overlay[data-open="true"] { transform: translate(-50%, -50%); opacity: 1; transition: opacity .2s ease-out, transform .25s var(--ease-expo), visibility 0s; }
  .overlay .grab { display: none; }
  .ov-body { grid-template-columns: 300px minmax(0, 1fr); gap: 28px; align-items: start; }
  .ov-photo .photo { height: auto; width: 100%; }
}

/* ---------- Skin Simulation preview (before/after) ---------- */
.photo img.sim { clip-path: inset(0 0 0 var(--pos, 50%)); }
.cmp-line { position: absolute; top: 0; bottom: 0; left: var(--pos, 50%); width: 2px; margin-left: -1px; background: #fff; box-shadow: 0 0 0 1px rgba(0,0,0,.35); z-index: 2; pointer-events: none; }
.cmp-line::after { content: ""; position: absolute; top: 50%; left: 50%; width: 30px; height: 30px; margin: -15px; border-radius: 50%; background: #fff; box-shadow: 0 0 0 1px rgba(0,0,0,.35), 0 2px 8px rgba(0,0,0,.3); }
.cmp { position: absolute; inset: 0; z-index: 3; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: ew-resize; touch-action: pan-y; }
.photo:has(.cmp:focus-visible) { outline: 2px solid var(--accent); outline-offset: 3px; }
.view-toggle { display: flex; gap: 8px; justify-content: center; margin-top: 10px; flex-wrap: wrap; }
.view-toggle .chip { min-height: 44px; padding: 6px 16px; font-size: .85rem; }
.photo.sweep img.sim { transition: clip-path .9s var(--ease-expo); }
.photo.sweep .cmp-line { transition: left .9s var(--ease-expo); }

/* Load-in and scroll reveal (reveal.js): Telogify's blur-fade, a spring (stiffness 120, damping 20) as a CSS curve, top down.
   `lo` is set by the inline <head> script, never without JS or under reduced motion. Never put data-reveal on .btn, .card or .sample. */
:root { --spring: cubic-bezier(0.16, 1, 0.3, 1); --spring-t: .6s; }
@supports (transition-timing-function: linear(0, 1)) {
  :root { --spring: linear(0, 0.025, 0.085, 0.166, 0.257, 0.35, 0.44, 0.523, 0.599, 0.667, 0.726, 0.777, 0.82, 0.856, 0.886, 0.911, 0.931, 0.947, 0.96, 0.97, 0.978, 0.984, 0.989, 0.992, 1); --spring-t: .52s; }
}
.lo [data-reveal]:not(.in) { opacity: 0; filter: blur(10px); transform: translateY(10px); }
.lo [data-reveal].in { opacity: 1; filter: blur(0); transform: none; transition: opacity var(--spring-t) var(--spring), filter var(--spring-t) var(--spring), transform var(--spring-t) var(--spring); }
@media (prefers-reduced-motion: reduce) { .lo [data-reveal]:not(.in) { opacity: 1; filter: none; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}

/* ---------- landing ---------- */
.hero { display: grid; gap: 36px; padding: 34px 0 8px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 900px) { .hero { grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 56px; align-items: center; padding: 56px 0 16px; } }
.hero-copy > .kicker { color: var(--muted); margin: 0 0 12px; }
.hero h1 { font-size: clamp(2.5rem, 6.2vw, 4.4rem); max-width: 13ch; }
.hero .lede { margin-top: 16px; font-size: 1.15rem; max-width: 46ch; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.cta .btn { min-height: 52px; padding: 12px 22px; font-size: 1.02rem; }
@media (max-width: 559px) { .cta .btn { flex: 1 1 100%; } }
.fine { margin-top: 12px; color: var(--muted); font-size: .85rem; }

.tape { display: grid; gap: 8px; justify-items: center; }
.slip { width: 100%; max-width: 470px; display: grid; grid-template-columns: 130px minmax(0, 1fr); grid-template-rows: repeat(6, auto) 1fr; column-gap: 18px; background: var(--surface); border: 1.5px solid var(--ink); border-radius: var(--r-paper); box-shadow: 6px 6px 0 var(--shadow); padding: 20px; transform: rotate(-1deg); }
.slip.print { animation: print .5s var(--ease-expo) both; }
.slip .photo { grid-column: 1; grid-row: 1 / span 4; width: 130px; align-self: start; margin: 0; }
.slip .receipt { display: contents; }
.slip .receipt .top { grid-column: 2; grid-row: 1; }
.slip .receipt .stamp { grid-column: 2; grid-row: 2; justify-self: start; }
.slip .receipt h3 { grid-column: 2; grid-row: 3; font-size: 1.1rem; }
.slip .receipt .reason { grid-column: 2; grid-row: 4; }
.slip .receipt dl { grid-column: 1 / -1; grid-row: 5; margin-top: var(--s-2); }
.slip .receipt .foot { grid-column: 1 / -1; grid-row: 6; }
.slip-total { grid-column: 1 / -1; grid-row: 7; align-self: end; display: flex; justify-content: space-between; align-items: baseline; gap: 10px; margin-top: var(--s-3); padding-top: 10px; border-top: 2px solid var(--ink); font: 700 .78rem var(--font-mono); letter-spacing: .1em; text-transform: uppercase; }
.slip-total b { font-size: 1rem; letter-spacing: 0; white-space: nowrap; }
@media (max-width: 559px) { .slip { grid-template-columns: 96px minmax(0, 1fr); column-gap: 12px; padding: 14px; } .slip .photo { width: 96px; } }
.tape-bar { display: flex; align-items: center; gap: 4px; }
.dots { display: flex; }
.dots button { position: relative; width: 36px; height: 44px; border: 0; background: none; }
.dots button::before { content: ""; position: absolute; left: 50%; top: 50%; width: 10px; height: 10px; margin: -5px; border-radius: 50%; border: 1.5px solid var(--muted); }
.dots button[aria-current="true"]::before { background: var(--ink); border-color: var(--ink); }

.proof { display: grid; gap: 20px; margin-top: var(--s-7); padding: 26px 0; border-top: 1.5px solid var(--ink); border-bottom: 1.5px solid var(--ink); }
@media (min-width: 760px) { .proof { grid-template-columns: repeat(3, 1fr); gap: 36px; } }
.proof b { display: block; font: 600 1.2rem/1.2 var(--font-display); margin-bottom: 4px; }
.proof span { color: var(--muted); font-size: .92rem; }
.proof a, .doc a { text-underline-offset: 3px; }

.teaser { margin-top: var(--s-7); }
.teaser > .kicker { color: var(--muted); margin-bottom: 14px; }
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
@media (min-width: 640px) { .steps { grid-template-columns: repeat(3, 1fr); gap: 32px; } }
.steps li { border-top: 1.5px solid var(--ink); padding-top: 10px; }
.steps .kicker { color: var(--accent); margin: 0 0 4px; }
.steps b { display: block; font: 600 1.15rem var(--font-display); }
.steps span { color: var(--muted); font-size: .92rem; }
.go-on { display: flex; flex-wrap: wrap; gap: 4px 24px; margin: 18px 0 0; }
.go-on a { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; font-weight: 500; text-decoration: underline; text-underline-offset: 3px; }

.closer { display: grid; justify-items: center; gap: 10px; text-align: center; padding: var(--s-8) 0 var(--s-2); }
.closer h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.closer p { color: var(--muted); }
.closer .btn { margin-top: 8px; min-height: 52px; padding: 12px 24px; }

/* ---------- how it works ---------- */
.how { padding: var(--s-6) 0 0; display: grid; gap: var(--s-7); }
.how-head > .kicker { color: var(--muted); margin: 0 0 var(--s-2); }
.triple { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--s-3); grid-template-columns: minmax(0, 1fr); }
@media (min-width: 760px) { .triple { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--s-4); } }
.triple li { display: grid; gap: 4px; align-content: start; padding: var(--s-4) 18px 18px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.triple .ic { color: var(--accent); margin-bottom: 6px; }
.triple b { font: 600 1.2rem var(--font-display); }
.triple span { color: var(--muted); font-size: .95rem; }

.rule { display: grid; gap: var(--s-5); padding: var(--s-5); background: var(--surface); border: 1.5px solid var(--ink); border-radius: var(--r-paper); box-shadow: 4px 4px 0 var(--shadow); }
@media (min-width: 900px) { .rule { grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: var(--s-7); align-items: center; padding: var(--s-6); } }
.rule-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-start; gap: var(--s-3); }
.rule h2 { font-size: 1.5rem; }
.rule .sub { color: var(--muted); font-size: .92rem; margin-top: 2px; }
.seg { display: flex; gap: var(--s-2); }
.gauge { margin-top: var(--s-5); }
.gauge-top { display: flex; justify-content: space-between; align-items: baseline; color: var(--muted); font-size: .9rem; }
.gauge-top b { font-size: 2rem; line-height: 1; color: var(--ink); }
.gauge-track { position: relative; height: 44px; margin: var(--s-3) 0 26px; }
.zones { position: absolute; left: 0; right: 0; top: 15px; height: 14px; display: flex; border-radius: 99px; overflow: hidden; }
.zones span { height: 100%; }
.zones .c-close { position: absolute; top: 0; height: 100%; background: repeating-linear-gradient(135deg, var(--bg) 0 2px, transparent 2px 5px); }
.gauge-track input { position: absolute; inset: 0; width: 100%; height: 44px; margin: 0; background: transparent; -webkit-appearance: none; appearance: none; cursor: grab; }
.gauge-track input::-webkit-slider-runnable-track { background: transparent; height: 44px; }
.gauge-track input::-moz-range-track { background: transparent; height: 44px; }
.gauge-track input::-webkit-slider-thumb { -webkit-appearance: none; width: 28px; height: 28px; margin-top: 8px; border-radius: 50%; background: var(--surface); border: 2px solid var(--ink); box-shadow: 2px 2px 0 var(--shadow); }
.gauge-track input::-moz-range-thumb { width: 24px; height: 24px; border-radius: 50%; background: var(--surface); border: 2px solid var(--ink); box-shadow: 2px 2px 0 var(--shadow); }
.gauge-track input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 99px; }
.ticks { position: absolute; left: 0; right: 0; top: 100%; height: 20px; pointer-events: none; }
.ticks span { position: absolute; top: 4px; transform: translateX(-50%); font: 400 .75rem var(--font-mono); color: var(--muted); }
.legend { list-style: none; display: flex; flex-wrap: wrap; gap: var(--s-3) var(--s-5); padding: 0; margin: var(--s-2) 0 0; }
.legend li { display: flex; align-items: center; gap: var(--s-2); font-size: .85rem; color: var(--muted); }
.rule-out { min-height: 250px; }
.rule-out .receipt { background: var(--bg); }
.rule-out .foot { display: none; }

.apis { display: grid; gap: var(--s-3); }
@media (min-width: 640px) { .apis { grid-template-columns: 1fr 1fr; gap: var(--s-4); } }
.api { display: grid; gap: 6px; align-content: start; padding: 18px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.api b { font: 600 1.2rem var(--font-display); }
.api span { color: var(--muted); font-size: .95rem; }
.api .chip-static { justify-self: start; margin-top: 6px; padding: 4px 12px; border: 1px solid var(--line); border-radius: var(--r-pill); font-size: .78rem; color: var(--ink); }

.know > .kicker { color: var(--muted); margin-bottom: var(--s-3); }
.know details { border-top: 1.5px solid var(--line); }
.know details:last-of-type { border-bottom: 1.5px solid var(--line); }
.know summary { list-style: none; display: flex; justify-content: space-between; align-items: center; min-height: 56px; cursor: pointer; font: 600 1.05rem var(--font-display); }
.know summary::-webkit-details-marker { display: none; }
.know summary::after { content: "+"; font: 400 1.5rem/1 var(--font-sans); color: var(--muted); }
.know details[open] summary::after { content: "\2212"; }
.know ul { margin: 0 0 var(--s-4); padding-left: 1.2rem; display: grid; gap: 6px; color: var(--muted); font-size: .95rem; }
.know a { color: var(--ink); text-underline-offset: 3px; }

/* Demo store page */
.demo-banner { margin: var(--s-4) 0 var(--s-5); padding: var(--s-3) var(--s-4); border: 1.5px dashed var(--ink); border-radius: var(--r-paper); font-size: .9rem; background: var(--surface); }
.pdp { display: grid; gap: var(--s-6); } .pdp-img { aspect-ratio: 1 / 1; max-width: 200px; width: 100%; padding: var(--s-4); border: 1px solid var(--line); border-radius: 14px; background: var(--surface); justify-self: center; }
.pdp-info { display: grid; gap: var(--s-3); align-content: start; } .pdp-info h1 { margin: 0; } .pdp-info .lede { margin: 0; } .price { font-size: 1.5rem; font-weight: 600; margin: 0; }
.rc-widget { border: 1.5px solid var(--ink); border-radius: var(--r-paper); box-shadow: 4px 4px 0 var(--shadow); padding: var(--s-4); background: var(--surface); display: grid; gap: var(--s-3); }
.rc-head { display: flex; justify-content: space-between; align-items: center; gap: var(--s-3); flex-wrap: wrap; } .rc-head h2 { margin: 0; font-size: 1.05rem; }
.rc-face { font: 400 .75rem var(--font-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); display: flex; align-items: center; gap: var(--s-2); }
.rc-face select { min-height: 40px; padding: 6px 10px; border: 1.5px solid var(--ink); border-radius: var(--r-paper); background: var(--surface); color: var(--ink); font: 400 .9rem var(--font-sans); }
.rc-verdict { display: grid; gap: var(--s-2); justify-items: start; min-height: 60px; } .rc-verdict p { margin: 0; } .rc-why summary { cursor: pointer; min-height: 44px; display: flex; align-items: center; font-weight: 500; }
.pdp-buy { margin-top: var(--s-2); display: flex; align-items: center; gap: var(--s-3); flex-wrap: wrap; } .pdp-more { margin-top: var(--s-7); display: grid; gap: var(--s-3); }
@media (min-width: 900px) { .pdp { grid-template-columns: minmax(0, 360px) minmax(0, 1fr); } .pdp-img { max-width: 360px; padding: var(--s-6); } }

/* Evidence page */
.ev { display: grid; gap: var(--s-3); margin-top: var(--s-7); } .ev h2 { margin: 0; } .ev .sub { max-width: 62ch; margin: 0; }
.evt { width: 100%; border-collapse: collapse; font-size: .9rem; } .evt th, .evt td { text-align: left; padding: var(--s-2) var(--s-3) var(--s-2) 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.evt thead th { font: 400 .72rem var(--font-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); } .evt tbody th { font-weight: 500; }
#flatTable, #photoTable, #prevTable { overflow-x: auto; }
.margins { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: var(--s-2) var(--s-5); }
.margins li { display: flex; justify-content: space-between; gap: var(--s-2); border-bottom: 1px solid var(--line); padding: var(--s-1) 0; font-size: .9rem; }
.plain { margin: 0; padding-left: 1.2em; display: grid; gap: var(--s-2); max-width: 62ch; }
.receipt .rescan { margin-top: var(--s-3); display: grid; gap: var(--s-2); justify-items: start; } .receipt .rescan p { margin: 0; font-size: .8rem; color: var(--muted); }
/* Reserve (a little less than) the filled height of the late-rendered grid so the footer does not jump when it fills. */
.pdp-more .shelf { min-height: 1900px; }
@media (min-width: 560px) { .pdp-more .shelf { min-height: 0; } }
@media (min-width: 1000px) { .pdp-more .shelf { min-height: 700px; } }
.pdp-info .lede { min-height: 1.6em; } .price { min-height: 1.5em; }