/* DEMOTAPE STUDIO — site styles */
:root {
  --bg: #0b0b0b;
  --bg-2: #121212;
  --bg-3: #191919;
  --ink: #f2f1ec;
  --ink-2: #c9c8c2;
  --mute: #8d8c87;
  --dim: #55544f;
  --line: rgba(242, 241, 236, 0.12);
  --line-2: rgba(242, 241, 236, 0.22);
  --danger: #e0715f;
  --font-display: "Anton", "Bahnschrift", Impact, sans-serif;
  --font-mono: "Space Mono", ui-monospace, "Courier New", monospace;
  --font-body: "Pretendard Variable", Pretendard, -apple-system, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  --gutter: clamp(16px, 4vw, 48px);
  --max: 1280px;
  --hd: 64px;
  --ease: cubic-bezier(.2, .7, .2, 1);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.65;
  word-break: keep-all;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* washed-fabric grain used on dark panels */
.grain { position: relative; isolation: isolate; }
.grain::before {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none; opacity: .5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .07 0'/%3E%3C/filter%3E%3Crect width='220' height='220' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* the star mark, recoloured with currentColor through a mask */
.mark {
  display: inline-block; width: 1em; height: 1.425em; background: currentColor;
  -webkit-mask: url("../images/logo.svg") center / contain no-repeat;
  mask: url("../images/logo.svg") center / contain no-repeat;
}

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.eyebrow { font-family: var(--font-mono); font-size: 11px; letter-spacing: .22em; text-transform: uppercase; color: var(--mute); }
.display { font-family: var(--font-display); font-weight: 400; text-transform: uppercase; letter-spacing: .01em; line-height: .92; margin: 0; }

/* ---------- header ---------- */
.hd {
  position: fixed; inset: 0 0 auto; z-index: 50; height: var(--hd);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 0 var(--gutter);
  transition: background .3s var(--ease), border-color .3s var(--ease);
  border-bottom: 1px solid transparent;
}
.hd.is-solid, body:not(.has-hero) .hd { background: rgba(11, 11, 11, .86); backdrop-filter: blur(12px); border-bottom-color: var(--line); }
.brand { display: flex; align-items: center; gap: 10px; }
.brand .mark { font-size: 22px; }
.brand-wm { font-family: var(--font-display); font-size: 20px; letter-spacing: .06em; line-height: 1; }
.brand-wm small { font-family: var(--font-mono); font-size: 9px; letter-spacing: .32em; color: var(--mute); margin-left: 8px; vertical-align: 3px; }
.nav { display: flex; gap: 28px; }
.nav a { font-family: var(--font-mono); font-size: 12px; letter-spacing: .14em; color: var(--ink-2); position: relative; padding: 6px 0; }
.nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--ink); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease); }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); }
.nav a:hover::after, .nav a[aria-current="page"]::after { transform: scaleX(1); }
.hd-act { display: flex; align-items: center; gap: 18px; font-family: var(--font-mono); font-size: 12px; letter-spacing: .12em; }
.hd-act a, .hd-act button { color: var(--ink-2); }
.hd-act a:hover, .hd-act button:hover { color: var(--ink); }
.bag-count { display: inline-grid; place-items: center; min-width: 18px; height: 18px; padding: 0 5px; margin-left: 4px; border-radius: 9px; background: var(--ink); color: var(--bg); font-size: 10px; letter-spacing: 0; }
.menu-btn { display: none; width: 28px; height: 28px; position: relative; }
.menu-btn span, .menu-btn::before, .menu-btn::after { content: ""; position: absolute; left: 4px; right: 4px; height: 1.5px; background: var(--ink); transition: transform .3s var(--ease), opacity .2s; }
.menu-btn::before { top: 9px; } .menu-btn span { top: 14px; } .menu-btn::after { top: 19px; }
body.menu-open .menu-btn::before { transform: translateY(5px) rotate(45deg); }
body.menu-open .menu-btn span { opacity: 0; }
body.menu-open .menu-btn::after { transform: translateY(-5px) rotate(-45deg); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: 52px; padding: 0 28px; border: 1px solid var(--ink);
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .18em; text-transform: uppercase;
  position: relative; overflow: hidden; isolation: isolate; transition: color .35s var(--ease);
}
.btn::before { content: ""; position: absolute; inset: 0; z-index: -1; background: var(--ink); transform: translateY(101%); transition: transform .35s var(--ease); }
.btn:hover { color: var(--bg); }
.btn:hover::before { transform: none; }
.btn--solid { background: var(--ink); color: var(--bg); }
.btn--solid::before { background: var(--bg); }
.btn--solid:hover { color: var(--ink); }
.btn--block { width: 100%; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn:disabled::before { display: none; }
.btn:disabled:hover { color: inherit; }
.link-arrow { font-family: var(--font-mono); font-size: 12px; letter-spacing: .16em; color: var(--ink-2); border-bottom: 1px solid var(--line-2); padding-bottom: 3px; }
.link-arrow:hover { color: var(--ink); border-color: var(--ink); }

/* ---------- hero (teaser) ---------- */
.hero { min-height: 100svh; display: grid; align-items: end; padding: calc(var(--hd) + 40px) 0 56px; overflow: hidden; }
.hero-mark { position: absolute; right: -4vw; top: 50%; transform: translateY(-50%); font-size: min(46vw, 560px); color: #1b1b1a; z-index: -1; }
.hero-inner { display: grid; gap: 28px; width: 100%; min-width: 0; }
.hero-title { font-size: clamp(96px, 21vw, 300px); }
.hero-sub { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px 28px; }
.hero-sub .eyebrow { color: var(--ink); font-size: 13px; }
.hero-copy { max-width: 46ch; color: var(--ink-2); margin: 0; font-size: 16px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-foot { display: flex; justify-content: space-between; gap: 16px; border-top: 1px solid var(--line); padding-top: 18px; margin-top: 12px; }
.hero-foot span { font-family: var(--font-mono); font-size: 11px; letter-spacing: .18em; color: var(--mute); }

/* ---------- sections ---------- */
.sec { padding: clamp(72px, 12vw, 140px) 0; border-top: 1px solid var(--line); }
.sec-head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 16px 40px; margin-bottom: 44px; }
.sec-title { font-size: clamp(44px, 7vw, 96px); }
.sec-lede { max-width: 48ch; color: var(--ink-2); margin: 0; }

.specs { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.spec { padding: 26px 22px 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.spec b { display: block; font-family: var(--font-mono); font-weight: 400; font-size: 11px; letter-spacing: .18em; color: var(--mute); margin-bottom: 14px; }
.spec h3 { font-size: 18px; margin: 0 0 6px; font-weight: 600; }
.spec p { margin: 0; color: var(--ink-2); font-size: 14px; }

.gfx { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; background: var(--line); border: 1px solid var(--line); }
.gfx figure { margin: 0; background: var(--bg-2); padding: 34px 28px 22px; display: grid; grid-template-rows: 1fr auto; gap: 18px; min-height: 380px; }
.gfx img { width: 100%; height: 280px; object-fit: contain; min-width: 0; }
.gfx figcaption { display: flex; justify-content: space-between; gap: 12px; font-family: var(--font-mono); font-size: 11px; letter-spacing: .14em; color: var(--mute); text-transform: uppercase; }
.gfx figcaption em { font-style: normal; color: var(--ink); }
.gfx-note { margin: 16px 0 0; font-size: 13px; color: var(--mute); }

.story { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(32px, 6vw, 96px); align-items: center; }
.story-mark { font-size: clamp(140px, 26vw, 360px); color: var(--ink); justify-self: center; }
.story p { color: var(--ink-2); }

/* ---------- drop alert ---------- */
.alert-box { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 6vw, 80px); align-items: start; }
.form { display: grid; gap: 14px; }
.field { display: grid; gap: 8px; }
.field > span { font-family: var(--font-mono); font-size: 11px; letter-spacing: .16em; color: var(--mute); text-transform: uppercase; }
.input {
  width: 100%; height: 52px; padding: 0 16px; background: var(--bg-2); border: 1px solid var(--line-2);
  border-radius: 0; color: var(--ink); font-size: 15px; transition: border-color .2s;
}
.input::placeholder { color: var(--dim); }
.input:focus { outline: none; border-color: var(--ink); }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 13.5px; color: var(--ink-2); line-height: 1.5; }
.check input { appearance: none; flex: none; width: 18px; height: 18px; margin: 1px 0 0; border: 1px solid var(--line-2); background: var(--bg-2); display: grid; place-items: center; cursor: pointer; }
.check input:checked { background: var(--ink); border-color: var(--ink); }
.check input:checked::after { content: ""; width: 9px; height: 5px; border: 2px solid var(--bg); border-top: 0; border-right: 0; transform: translateY(-1px) rotate(-45deg); }
.check a { text-decoration: underline; text-underline-offset: 3px; color: var(--ink); }
.check em { font-style: normal; color: var(--ink); }
.form-msg { min-height: 1.5em; font-size: 14px; margin: 0; }
.form-msg.ok { color: var(--ink); }
.form-msg.err { color: var(--danger); }
.consent-box { border: 1px solid var(--line); padding: 14px 16px; font-size: 12.5px; color: var(--mute); line-height: 1.6; }
.consent-box b { color: var(--ink-2); font-weight: 600; }

/* ---------- shop ---------- */
.page { padding-top: calc(var(--hd) + clamp(40px, 7vw, 88px)); }
.page-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: end; gap: 16px; padding-bottom: 28px; border-bottom: 1px solid var(--line); margin-bottom: 32px; }
.page-title { font-size: clamp(56px, 10vw, 140px); }
.page-title--ko { font-family: var(--font-body); font-weight: 800; letter-spacing: -.03em; font-size: clamp(40px, 6.4vw, 84px); line-height: 1.1; }
.prose .link-arrow, .notice .link-arrow { font-family: inherit; letter-spacing: 0; font-size: inherit; }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px 2px; }
.card { display: grid; gap: 14px; }
.card-media { position: relative; aspect-ratio: 4 / 5; background: var(--bg-2); overflow: hidden; display: grid; place-items: center; }
.card-media img { position: absolute; inset: 15% 19%; width: 62%; height: 70%; object-fit: contain; transition: transform .8s var(--ease); }
.card:hover .card-media img { transform: scale(1.04); }
.badge { position: absolute; left: 14px; top: 14px; font-family: var(--font-mono); font-size: 10px; letter-spacing: .18em; padding: 5px 9px; background: var(--ink); color: var(--bg); }
.card-meta { display: flex; justify-content: space-between; gap: 12px; }
.card-meta h3 { margin: 0; font-size: 15px; font-weight: 600; }
.card-meta p { margin: 2px 0 0; color: var(--mute); font-size: 13px; }
.card-meta .price { font-family: var(--font-mono); font-size: 12px; letter-spacing: .1em; white-space: nowrap; }
.empty-slot { aspect-ratio: 4 / 5; border: 1px dashed var(--line); display: grid; place-items: center; text-align: center; color: var(--dim); font-family: var(--font-mono); font-size: 11px; letter-spacing: .18em; }

/* ---------- product ---------- */
.pdp { margin-bottom: clamp(64px, 9vw, 112px); display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 72px); align-items: start; }
.pdp-gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; }
.pdp-gallery figure { margin: 0; background: var(--bg-2); aspect-ratio: 4 / 5; display: grid; place-items: center; position: relative; min-width: 0; }
.pdp-gallery figure:first-child { grid-column: 1 / -1; aspect-ratio: 5 / 4; }
.pdp-gallery img { position: absolute; inset: 13% 15%; width: 70%; height: 74%; object-fit: contain; }
.pdp-gallery figcaption { position: absolute; left: 14px; bottom: 12px; font-family: var(--font-mono); font-size: 10px; letter-spacing: .16em; color: var(--mute); }
.pdp-info { position: sticky; top: calc(var(--hd) + 24px); display: grid; gap: 22px; }
.pdp-info h1 { font-size: 24px; line-height: 1.35; margin: 6px 0 0; font-weight: 600; }
.pdp-price { font-family: var(--font-mono); font-size: 14px; letter-spacing: .1em; }
.pdp-rows { display: grid; border-top: 1px solid var(--line); }
.pdp-rows div { display: grid; grid-template-columns: 88px 1fr; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.pdp-rows dt { color: var(--mute); }
.pdp-rows dd { margin: 0; }
.pdp-note { font-size: 13px; color: var(--mute); margin: 0; }
.acc { border-top: 1px solid var(--line); }
.acc details { border-bottom: 1px solid var(--line); }
.acc summary { list-style: none; cursor: pointer; padding: 18px 0; display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 12px; letter-spacing: .16em; text-transform: uppercase; }
.acc summary::-webkit-details-marker { display: none; }
.acc summary::after { content: "+"; font-size: 16px; line-height: 1; transition: transform .3s var(--ease); }
.acc details[open] summary::after { transform: rotate(45deg); }
.acc .acc-body { padding: 0 0 22px; color: var(--ink-2); font-size: 14px; }
.acc ul { margin: 0; padding-left: 18px; display: grid; gap: 6px; }
.size-table { width: 100%; border-collapse: collapse; font-size: 13px; margin: 4px 0 10px; }
.size-table th, .size-table td { border: 1px solid var(--line); padding: 9px 10px; text-align: center; }
.size-table th { font-weight: 500; color: var(--mute); background: var(--bg-2); }

/* ---------- prose pages (about / guide / legal) ---------- */
.prose { max-width: 760px; }
.prose h2 { font-size: 20px; margin: 48px 0 14px; font-weight: 700; }
.prose h3 { font-size: 16px; margin: 28px 0 10px; font-weight: 600; }
.prose p, .prose li { color: var(--ink-2); }
.prose ul, .prose ol { padding-left: 20px; display: grid; gap: 6px; }
.prose table { width: 100%; border-collapse: collapse; font-size: 13.5px; margin: 12px 0 18px; }
.prose th, .prose td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; color: var(--ink-2); }
.prose th { background: var(--bg-2); color: var(--ink); font-weight: 600; white-space: nowrap; }
.prose .meta { font-family: var(--font-mono); font-size: 12px; letter-spacing: .1em; color: var(--mute); }
.toc { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 8px; padding: 0; list-style: none; }
.toc a { display: inline-block; border: 1px solid var(--line-2); padding: 8px 14px; font-family: var(--font-mono); font-size: 11px; letter-spacing: .14em; }
.toc a:hover { border-color: var(--ink); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 18px 0; font-weight: 600; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--font-mono); }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0 0 18px; color: var(--ink-2); }

/* ---------- auth ---------- */
.auth { max-width: 440px; margin: 0 auto; }
.auth .page-title { font-size: clamp(48px, 8vw, 84px); margin-bottom: 28px; }
.auth-alt { display: flex; justify-content: space-between; gap: 12px; font-size: 13.5px; color: var(--mute); margin-top: 6px; }
.auth-alt a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
.panel { border: 1px solid var(--line); padding: 22px; display: grid; gap: 14px; }
.panel h2 { margin: 0; font-size: 15px; font-family: var(--font-mono); letter-spacing: .14em; font-weight: 400; text-transform: uppercase; color: var(--mute); }
.kv { display: grid; grid-template-columns: 100px 1fr; gap: 6px 14px; font-size: 14px; margin: 0; }
.kv dt { color: var(--mute); }
.kv dd { margin: 0; }
.notice { border: 1px solid var(--line-2); padding: 18px 20px; color: var(--ink-2); font-size: 14px; }

/* ---------- footer ---------- */
.ft { border-top: 1px solid var(--line); padding: 56px 0 40px; margin-top: clamp(72px, 10vw, 120px); font-size: 12.5px; color: var(--mute); }
.ft-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 24px; margin-bottom: 36px; }
.ft-brand { display: flex; align-items: center; gap: 12px; color: var(--ink); }
.ft-brand .mark { font-size: 26px; }
.ft-brand strong { font-family: var(--font-display); font-weight: 400; font-size: 22px; letter-spacing: .06em; }
.ft-links { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.ft-links a { color: var(--ink-2); }
.ft-links a.strong { color: var(--ink); font-weight: 700; }
.ft-links a:hover { color: var(--ink); }
.ft-biz { display: flex; flex-wrap: wrap; gap: 4px 18px; line-height: 1.8; margin: 0; }
.ft-biz span { white-space: nowrap; }
.ft-copy { margin-top: 22px; font-family: var(--font-mono); font-size: 11px; letter-spacing: .14em; }

/* ---------- bag drawer ---------- */
.scrim { position: fixed; inset: 0; z-index: 80; background: rgba(0, 0, 0, .6); opacity: 0; pointer-events: none; transition: opacity .3s var(--ease); }
.scrim.is-on { opacity: 1; pointer-events: auto; }
.drawer { position: fixed; z-index: 90; top: 0; right: 0; bottom: 0; width: min(420px, 100%); background: var(--bg); border-left: 1px solid var(--line); display: grid; grid-template-rows: auto 1fr auto; transform: translateX(100%); transition: transform .4s var(--ease); }
.drawer.is-on { transform: none; }
.drawer-hd { display: flex; justify-content: space-between; align-items: center; padding: 20px 22px; border-bottom: 1px solid var(--line); font-family: var(--font-mono); font-size: 12px; letter-spacing: .16em; }
.drawer-bd { overflow: auto; padding: 8px 22px; }
.drawer-ft { border-top: 1px solid var(--line); padding: 18px 22px 22px; display: grid; gap: 12px; }
.bag-empty { text-align: center; padding: 64px 0; color: var(--mute); display: grid; gap: 18px; justify-items: center; }
.bag-item { display: grid; grid-template-columns: 72px 1fr auto; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.bag-item img { width: 72px; height: 90px; object-fit: contain; background: var(--bg-2); }
.bag-item small { color: var(--mute); display: block; }
.qty { display: inline-flex; align-items: center; border: 1px solid var(--line-2); margin-top: 8px; }
.qty button { width: 28px; height: 28px; }
.qty span { min-width: 26px; text-align: center; font-family: var(--font-mono); font-size: 12px; }
.bag-total { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 13px; letter-spacing: .08em; }

/* ---------- drop popup ---------- */
.pop { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 16px; background: rgba(0, 0, 0, .7); opacity: 0; pointer-events: none; transition: opacity .35s var(--ease); }
.pop.is-on { opacity: 1; pointer-events: auto; }
.pop-card { width: min(400px, 100%); background: var(--bg); border: 1px solid var(--line-2); transform: translateY(24px) scale(.98); transition: transform .5s var(--ease); max-height: calc(100svh - 32px); overflow: auto; }
.pop.is-on .pop-card { transform: none; }
.pop-visual { aspect-ratio: 1 / 1; background: var(--bg-2); position: relative; overflow: hidden; display: grid; place-items: center; }
.pop-visual .mark { font-size: 150px; color: #262625; position: absolute; }
.pop-visual img { position: relative; width: 46%; }
.pop-visual .tag { position: absolute; top: 16px; left: 16px; font-family: var(--font-mono); font-size: 10px; letter-spacing: .22em; background: var(--ink); color: var(--bg); padding: 5px 9px; }
.pop-body { padding: 24px 24px 22px; display: grid; gap: 12px; }
.pop-body .display { font-size: 64px; }
.pop-body p { margin: 0; color: var(--ink-2); font-size: 14px; }
.pop-ft { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.pop-ft button { padding: 15px; font-size: 13px; color: var(--mute); }
.pop-ft button + button { border-left: 1px solid var(--line); color: var(--ink); }
.pop-ft button:hover { color: var(--ink); background: var(--bg-2); }

/* ---------- toast ---------- */
.toast { position: fixed; left: 50%; bottom: 24px; z-index: 120; transform: translate(-50%, 20px); opacity: 0; background: var(--ink); color: var(--bg); padding: 12px 18px; font-size: 13.5px; transition: opacity .3s, transform .3s var(--ease); pointer-events: none; max-width: calc(100% - 32px); }
.toast.is-on { opacity: 1; transform: translate(-50%, 0); }

/* ---------- reveal motion ---------- */
.rv { opacity: 0; transform: translateY(24px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.rv.is-in { opacity: 1; transform: none; }
.hero .rv { transition-duration: 1.1s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .rv { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .specs { grid-template-columns: repeat(2, 1fr); }
  .gfx { grid-template-columns: repeat(2, 1fr); }
  .grid { grid-template-columns: repeat(2, 1fr); }
  .pdp { grid-template-columns: 1fr; }
  .pdp-info { position: static; }
  .story, .alert-box { grid-template-columns: 1fr; }
  .story-mark { order: -1; }
}
@media (max-width: 760px) {
  .nav {
    position: fixed; inset: var(--hd) 0 auto; flex-direction: column; gap: 0; background: var(--bg);
    border-bottom: 1px solid var(--line); padding: 8px var(--gutter) 20px;
    transform: translateY(-8px); opacity: 0; pointer-events: none; transition: opacity .25s, transform .25s var(--ease);
  }
  .nav a { padding: 14px 0; font-size: 14px; border-bottom: 1px solid var(--line); }
  .nav a::after { display: none; }
  body.menu-open .nav { opacity: 1; transform: none; pointer-events: auto; }
  body.menu-open .hd { background: var(--bg); }
  .menu-btn { display: block; }
  .brand-wm small { display: none; }
  .hd-act { gap: 14px; }
  .gfx { grid-template-columns: 1fr; }
  .gfx figure { min-height: 320px; }
  .grid { grid-template-columns: 1fr; }
  .specs { grid-template-columns: 1fr; }
  .hero-foot { flex-direction: column; gap: 6px; }
  .pdp-gallery { grid-template-columns: 1fr; }
  .pdp-gallery figure:first-child { aspect-ratio: 4 / 5; }
}