/* ==========================================================================
   KEXIN Protective Cases — design system
   Identity: technical drawing. Measurement ticks, hairline rules, mono data,
   corner brackets, one signal colour. Industrial B2B, not consumer.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@500;600;700;800;900&family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@400;500;600&display=swap');

:root {
  --ink: #0a0c0e;
  --ink-2: #10141a;
  --surface: #171d24;
  --surface-2: #1f2730;
  --paper: #f1f0ec;
  --paper-2: #e3e1d9;
  --white: #ffffff;
  --line: rgba(255, 255, 255, .13);
  --line-strong: rgba(255, 255, 255, .28);
  --line-dark: rgba(10, 12, 14, .14);
  --line-dark-strong: rgba(10, 12, 14, .32);
  --txt: #eef1f4;
  --txt-dim: #97a3ae;
  --txt-mute: #6d7986;
  --ink-txt: #0f1418;
  --ink-txt-dim: #4d5a66;
  --accent: #ff5a1f;
  --accent-deep: #d94310;
  --hi: #d8e94f;
  --ok: #4ec98a;
  --warn: #f0b429;
  --maxw: 1320px;
  --gut: clamp(18px, 4vw, 56px);
  --r: 2px;
  --f-display: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
  --f-body: 'IBM Plex Sans', -apple-system, 'Segoe UI', sans-serif;
  --f-mono: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Consolas, monospace;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

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

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

body {
  margin: 0;
  background: var(--ink);
  color: var(--txt);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.66;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }

::selection { background: var(--accent); color: #fff; }

/* ---------- grain ---------- */
body::after {
  content: '';
  position: fixed; inset: 0; z-index: 9999; pointer-events: none; opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gut); }
.wrap-narrow { max-width: 880px; }
section { position: relative; }
.pad { padding-block: clamp(56px, 9vw, 128px); }
.pad-s { padding-block: clamp(36px, 5vw, 68px); }
.light { background: var(--paper); color: var(--ink-txt); }
.light h1, .light h2, .light h3 { color: var(--ink-txt); }
.light .eyebrow { color: var(--accent-deep); }
.light .rule { background: var(--line-dark); }
.light .mono { color: var(--ink-txt-dim); }

/* ---------- type ---------- */
h1, h2, h3, h4 { font-family: var(--f-display); font-weight: 800; line-height: 1.02; letter-spacing: -.025em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.4rem, 6.2vw, 5.1rem); font-weight: 900; text-transform: uppercase; }
h2 { font-size: clamp(1.75rem, 3.6vw, 3rem); text-transform: uppercase; }
h3 { font-size: clamp(1.15rem, 1.9vw, 1.6rem); letter-spacing: -.015em; }
h4 { font-size: 1.02rem; font-weight: 700; letter-spacing: -.005em; }
p { margin: 0 0 1.15em; }
p:last-child { margin-bottom: 0; }
.lead { font-size: clamp(1.05rem, 1.6vw, 1.32rem); line-height: 1.55; color: var(--txt-dim); font-weight: 400; }
.light .lead { color: #33404b; }
small { font-size: .82rem; }

.mono { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .13em; text-transform: uppercase; color: var(--txt-dim); }
.eyebrow {
  font-family: var(--f-mono); font-size: .7rem; font-weight: 600; letter-spacing: .26em;
  text-transform: uppercase; color: var(--accent); display: inline-flex; align-items: center; gap: .7em; margin-bottom: 1.1rem;
}
.eyebrow::before { content: ''; width: 26px; height: 1px; background: currentColor; }

.sec-head { display: flex; align-items: baseline; gap: 1.4rem; flex-wrap: wrap; margin-bottom: clamp(28px, 4vw, 52px); border-bottom: 1px solid var(--line); padding-bottom: 20px; }
.light .sec-head { border-color: var(--line-dark); }
.sec-head .num { font-family: var(--f-mono); font-size: .74rem; color: var(--accent); letter-spacing: .1em; }
.sec-head .h { flex: 1 1 420px; margin: 0; }
.sec-head .sub { flex: 1 1 320px; max-width: 460px; color: var(--txt-dim); font-size: .96rem; }
.light .sec-head .sub { color: var(--ink-txt-dim); }

.rule { height: 1px; background: var(--line); border: 0; margin: 0; }

ul, ol { margin: 0 0 1.15em; padding-left: 1.15em; }
li { margin-bottom: .45em; }
li::marker { color: var(--accent); }
.list-clean { list-style: none; padding: 0; margin: 0; }
.list-clean li { padding-left: 1.5em; position: relative; margin-bottom: .6em; }
.list-clean li::before { content: ''; position: absolute; left: 0; top: .62em; width: .7em; height: 1px; background: var(--accent); }

/* ---------- buttons ---------- */
.btn {
  --bg: var(--accent); --fg: #0a0c0e;
  display: inline-flex; align-items: center; gap: .8em; padding: .95em 1.5em;
  background: var(--bg); color: var(--fg); border: 1px solid var(--bg);
  font-family: var(--f-mono); font-size: .76rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
  cursor: pointer; position: relative; overflow: hidden; white-space: nowrap;
  transition: color .35s var(--ease), background .35s var(--ease), border-color .35s var(--ease);
}
.btn > * { position: relative; z-index: 1; }
.btn::before { content: ''; position: absolute; inset: 0; background: var(--ink); transform: translateY(101%); transition: transform .4s var(--ease); }
.btn:hover { color: #fff; }
.btn:hover::before { transform: translateY(0); }
.btn-ghost { --bg: transparent; --fg: var(--txt); border-color: var(--line-strong); }
.light .btn-ghost { --fg: var(--ink-txt); border-color: var(--line-dark-strong); }
.btn-ghost::before { background: var(--accent); }
.btn-ghost:hover { color: #0a0c0e; border-color: var(--accent); }
.btn-sm { padding: .7em 1.1em; font-size: .68rem; }
.btn .arw { transition: transform .35s var(--ease); }
.btn:hover .arw { transform: translateX(4px); }

.link-a { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .13em; text-transform: uppercase; color: var(--accent); border-bottom: 1px solid currentColor; padding-bottom: 2px; display: inline-block; transition: opacity .25s; }
.link-a:hover { opacity: .65; }

/* ---------- header ---------- */
.ruler { height: 14px; background: var(--ink); position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.ruler::before {
  content: ''; position: absolute; inset: 0;
  background-image: repeating-linear-gradient(90deg, var(--line-strong) 0 1px, transparent 1px 12px);
  opacity: .55;
}
.ruler i { position: absolute; top: 0; bottom: 0; width: 1px; background: var(--accent); left: 0; transition: left .1s linear; }

.hdr { position: sticky; top: 0; z-index: 900; background: rgba(10, 12, 14, .82); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); transition: background .3s, border-color .3s; }
.hdr-in { display: flex; align-items: center; gap: 1.6rem; height: 72px; }
.logo { display: flex; align-items: center; gap: .7rem; flex-shrink: 0; }
.logo-mark { width: 30px; height: 30px; border: 2px solid var(--accent); position: relative; }
.logo-mark::after { content: ''; position: absolute; inset: 5px; background: var(--accent); }
.logo-t { display: block; font-family: var(--f-display); font-weight: 900; font-size: 1.16rem; letter-spacing: .01em; text-transform: uppercase; line-height: 1; }
.logo-t span { color: var(--accent); }
.logo-s { display: block; font-family: var(--f-mono); font-size: .55rem; letter-spacing: .22em; color: var(--txt-mute); text-transform: uppercase; margin-top: 1px; }

.nav { display: flex; align-items: center; gap: .1rem; margin: 0 0 0 auto; padding: 0; list-style: none; }
.nav > li { position: static; list-style: none; }
.nav > li > a { display: block; padding: .55em .72em; font-family: var(--f-mono); font-size: .7rem; letter-spacing: .09em; text-transform: uppercase; color: var(--txt-dim); transition: color .25s; position: relative; white-space: nowrap; }
.nav > li > a::after { content: ''; position: absolute; left: .8em; right: .8em; bottom: .25em; height: 1px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease); }
.nav > li > a:hover { color: var(--txt); }
.nav > li > a:hover::after, .nav > li.open > a::after, .nav > li.current > a::after { transform: scaleX(1); }
.nav > li.open > a, .nav > li.current > a { color: var(--txt); }

.mega { position: absolute; top: 100%; left: 0; right: 0; background: var(--ink-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--accent); opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .28s var(--ease), transform .28s var(--ease), visibility .28s; }
.nav > li.open .mega { opacity: 1; visibility: visible; transform: translateY(0); }
.mega-in { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; padding: 34px 0 38px; }
.mega-col h5 { font-family: var(--f-mono); font-size: .64rem; letter-spacing: .2em; text-transform: uppercase; color: var(--accent); margin: 0 0 14px; font-weight: 600; }
.mega-col a { display: block; padding: .3em 0; font-size: .88rem; color: var(--txt-dim); transition: color .2s, padding-left .25s var(--ease); }
.mega-col a:hover { color: var(--txt); padding-left: 6px; }
.mega-cta { border-left: 1px solid var(--line); padding-left: 30px; display: flex; flex-direction: column; justify-content: space-between; gap: 18px; }
.mega-cta p { font-size: .88rem; color: var(--txt-dim); margin: 0; }

.burger { display: none; width: 42px; height: 42px; border: 1px solid var(--line-strong); background: none; cursor: pointer; position: relative; margin-left: auto; }
.burger i { position: absolute; left: 11px; right: 11px; height: 1.5px; background: var(--txt); transition: transform .3s var(--ease), opacity .2s; }
.burger i:nth-child(1) { top: 14px; } .burger i:nth-child(2) { top: 20px; } .burger i:nth-child(3) { top: 26px; }
body.menu-open .burger i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
body.menu-open .burger i:nth-child(2) { opacity: 0; }
body.menu-open .burger i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.hdr-cta { display: flex; align-items: center; gap: .7rem; }

/* ---------- hero ---------- */
.hero { position: relative; min-height: clamp(560px, 88vh, 900px); display: flex; align-items: flex-end; overflow: hidden; background: var(--ink); }
.hero-media { position: absolute; inset: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; opacity: .8; animation: kb 26s ease-in-out infinite alternate; }
@keyframes kb { from { transform: scale(1.04) translate3d(0,0,0); } to { transform: scale(1.16) translate3d(-1.5%, -1.5%, 0); } }
.hero-media::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(10,12,14,.95) 0%, rgba(10,12,14,.70) 44%, rgba(10,12,14,.18) 100%); }
.hero-grid-lines { position: absolute; inset: 0; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 90px 90px; opacity: .28; mask-image: linear-gradient(to top, #000, transparent 70%); }
.hero-in { position: relative; z-index: 2; width: 100%; padding-bottom: clamp(40px, 6vw, 84px); padding-top: clamp(80px, 12vw, 150px); }
.hero h1 { max-width: 17ch; margin-bottom: .35em; }
.hero .lead { max-width: 62ch; }
.mask-line { display: block; overflow: hidden; }
.mask-line > span { display: block; transform: translateY(105%); transition: transform 1s var(--ease); }
.revealed .mask-line > span { transform: translateY(0); }
.mask-line:nth-child(2) > span { transition-delay: .1s; }
.mask-line:nth-child(3) > span { transition-delay: .2s; }

.spec-strip { display: flex; flex-wrap: wrap; gap: 0; border: 1px solid var(--line); margin-top: clamp(30px, 4vw, 52px); background: rgba(10,12,14,.55); backdrop-filter: blur(6px); }
.spec-strip div { flex: 1 1 180px; padding: 18px 22px; border-right: 1px solid var(--line); }
.spec-strip div:last-child { border-right: 0; }
.spec-strip b { display: block; font-family: var(--f-display); font-size: 1.75rem; font-weight: 800; color: var(--accent); line-height: 1; letter-spacing: -.02em; }
.spec-strip span { font-family: var(--f-mono); font-size: .62rem; letter-spacing: .16em; text-transform: uppercase; color: var(--txt-dim); display: block; margin-top: 8px; }

/* ---------- reveal ---------- */
.rv { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.rv.in { opacity: 1; transform: none; }
.rv[data-d="1"] { transition-delay: .08s; } .rv[data-d="2"] { transition-delay: .16s; }
.rv[data-d="3"] { transition-delay: .24s; } .rv[data-d="4"] { transition-delay: .32s; }
.rv[data-d="5"] { transition-delay: .4s; } .rv[data-d="6"] { transition-delay: .48s; }

/* ---------- grids ---------- */
.g { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.g-2 { grid-template-columns: repeat(2, 1fr); }
.g-3 { grid-template-columns: repeat(3, 1fr); }
.g-4 { grid-template-columns: repeat(4, 1fr); }
.g-5 { grid-template-columns: repeat(5, 1fr); }
.g > * { background: var(--ink); padding: clamp(20px, 2.4vw, 34px); }
.light .g { background: var(--line-dark); border-color: var(--line-dark); }
.light .g > * { background: var(--paper); transition: background .3s; }
.light .g > *:hover { background: var(--white); }
.flow > * + * { margin-top: 1.1rem; }

/* ---------- cards ---------- */
.cat-card { position: relative; display: flex; flex-direction: column; min-height: 300px; overflow: hidden; background: linear-gradient(140deg, #17202a 0%, #0b0e12 70%) !important; color: var(--txt) !important; transition: background .4s; }
.cat-card .im { position: absolute; inset: 0; opacity: .55; transition: opacity .5s var(--ease), transform .8s var(--ease); }
.cat-card .im img { width: 100%; height: 100%; object-fit: cover; }
.cat-card:hover .im { opacity: .72; transform: scale(1.06); }
.cat-card::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10,12,14,.35) 0%, rgba(10,12,14,.78) 55%, rgba(10,12,14,.95) 100%); }
.cat-card > * { position: relative; z-index: 1; }
.cat-card .body { margin-top: auto; }
.cat-card h3 { font-size: 1.32rem; text-transform: uppercase; margin-bottom: .35em; color: #fff; }
.cat-card p { font-size: .9rem; color: #b3bec8; margin: 0; }
.cat-card .cnt { font-family: var(--f-mono); font-size: .64rem; letter-spacing: .16em; color: var(--accent); margin-bottom: 12px; display: block; }
.cat-card .brk { position: absolute; width: 16px; height: 16px; border: 1px solid var(--accent); opacity: 0; transition: opacity .35s, transform .35s var(--ease); z-index: 2; }
.cat-card .brk.tl { top: 12px; left: 12px; border-right: 0; border-bottom: 0; transform: translate(-6px,-6px); }
.cat-card .brk.br { bottom: 12px; right: 12px; border-left: 0; border-top: 0; transform: translate(6px,6px); }
.cat-card:hover .brk { opacity: 1; transform: none; }

/* product card */
.p-card { background: var(--paper) !important; color: var(--ink-txt); display: flex; flex-direction: column; transition: transform .45s var(--ease), box-shadow .45s var(--ease); position: relative; }
.p-card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(0,0,0,.4); z-index: 3; }
.p-card .im { aspect-ratio: 4/3; background: #fff; display: grid; place-items: center; padding: 14px; overflow: hidden; position: relative; }
.p-card .im img { max-height: 100%; width: auto; object-fit: contain; transition: transform .6s var(--ease); }
.p-card:hover .im img { transform: scale(1.07); }
.p-card .ph { font-family: var(--f-mono); font-size: .6rem; color: #b6bcc2; letter-spacing: .1em; }
.p-card .b { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.p-card .sku { font-family: var(--f-mono); font-size: .68rem; letter-spacing: .12em; color: var(--accent-deep); font-weight: 600; }
.p-card h4 { font-size: .98rem; margin: 0; letter-spacing: -.01em; }
.p-card .dim { font-family: var(--f-mono); font-size: .72rem; color: var(--ink-txt-dim); line-height: 1.55; }
.p-card .dim b { color: var(--ink-txt); font-weight: 600; }
.p-card .tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: auto; padding-top: 8px; }
.tag { font-family: var(--f-mono); font-size: .58rem; letter-spacing: .1em; text-transform: uppercase; padding: 3px 7px; border: 1px solid var(--line-dark); color: var(--ink-txt-dim); }
.tag.on { border-color: var(--accent); color: var(--accent-deep); }

/* ---------- tables ---------- */
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.tbl { width: 100%; border-collapse: collapse; margin: 0; }
.tbl th, .tbl td { text-align: left; padding: 13px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
.light .tbl th, .light .tbl td { border-color: var(--line-dark); }
.tbl thead th { font-family: var(--f-mono); font-size: .64rem; letter-spacing: .16em; text-transform: uppercase; color: var(--accent); font-weight: 600; border-bottom: 1px solid var(--line-strong); }
.light .tbl thead th { border-bottom-color: var(--line-dark-strong); color: var(--accent-deep); }
.tbl tbody tr { transition: background .22s; }
.tbl tbody tr:hover { background: rgba(255,255,255,.035); }
.light .tbl tbody tr:hover { background: rgba(10,12,14,.04); }
.tbl td:first-child { font-weight: 600; }

/* spec table (product) */
.spec { font-family: var(--f-mono); font-size: .82rem; }
.spec th { width: 46%; font-weight: 500; color: var(--ink-txt-dim); text-transform: none; letter-spacing: 0; font-size: .82rem; padding: 11px 0 11px 14px; border-bottom: 1px solid var(--line-dark); }
.spec td { padding: 11px 14px 11px 0; border-bottom: 1px solid var(--line-dark); text-align: right; color: var(--ink-txt); font-weight: 600; }
.spec tr:last-child th, .spec tr:last-child td { border-bottom: 0; }

/* ---------- dimension diagram ---------- */
.dimbox { position: relative; background: #fff; border: 1px solid var(--line-dark); padding: 46px 46px 56px; display: grid; place-items: center; }
.dimbox img { max-height: 280px; width: auto; }
.dimbox svg.ov { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.dim-lab { font-family: var(--f-mono); font-size: .62rem; letter-spacing: .1em; fill: var(--accent-deep); font-weight: 600; }
.dim-ln { stroke: var(--accent-deep); stroke-width: 1; }

/* ---------- page hero (interior) ---------- */
.phero { padding-top: clamp(46px, 7vw, 88px); padding-bottom: clamp(34px, 5vw, 60px); position: relative; overflow: hidden; }
.phero.has-bg { min-height: 340px; display: flex; align-items: flex-end; }
.phero.has-bg .bg { position: absolute; inset: 0; }
.phero.has-bg .bg img { width: 100%; height: 100%; object-fit: cover; opacity: .5; }
.phero.has-bg .bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(10,12,14,.96) 6%, rgba(10,12,14,.74) 48%, rgba(10,12,14,.34) 100%); }
.phero .wrap { position: relative; z-index: 1; width: 100%; }
.crumbs { font-family: var(--f-mono); font-size: .64rem; letter-spacing: .14em; text-transform: uppercase; color: var(--txt-mute); margin-bottom: 22px; display: flex; flex-wrap: wrap; gap: .55em; align-items: center; }
.crumbs a:hover { color: var(--accent); }
.crumbs span { opacity: .45; }
.phero h1 { font-size: clamp(2rem, 5vw, 4.1rem); max-width: 20ch; }
.phero .lead { max-width: 70ch; }

/* ---------- callout / quick answer ---------- */
.qa { border-left: 2px solid var(--accent); padding: 4px 0 4px clamp(18px, 2.4vw, 30px); margin-bottom: 2.2rem; }
.qa .mono { display: block; margin-bottom: .8rem; color: var(--accent); }
.qa p { font-size: clamp(1.02rem, 1.5vw, 1.24rem); line-height: 1.55; max-width: 74ch; margin: 0; }
.light .qa .mono { color: var(--accent-deep); }

.note { border: 1px solid var(--line); padding: 22px 24px; background: rgba(255,255,255,.025); }
.light .note { border-color: var(--line-dark); background: rgba(10,12,14,.035); }
.note .mono { display: block; margin-bottom: .6rem; color: var(--accent); }
.light .note .mono { color: var(--accent-deep); }
.note p { font-size: .93rem; margin: 0; }

/* ---------- accordion / faq ---------- */
.acc { border-top: 1px solid var(--line); }
.light .acc { border-color: var(--line-dark); }
.acc details { border-bottom: 1px solid var(--line); }
.light .acc details { border-color: var(--line-dark); }
.acc summary { list-style: none; cursor: pointer; padding: 20px 44px 20px 0; position: relative; font-family: var(--f-display); font-weight: 700; font-size: 1.04rem; letter-spacing: -.01em; transition: color .25s; }
.acc summary::-webkit-details-marker { display: none; }
.acc summary:hover { color: var(--accent); }
.acc summary::after { content: ''; position: absolute; right: 12px; top: 26px; width: 11px; height: 11px; border-right: 1.5px solid var(--accent); border-bottom: 1.5px solid var(--accent); transform: rotate(45deg); transition: transform .3s var(--ease); }
.acc details[open] summary::after { transform: rotate(-135deg); }
.acc .a { padding: 0 0 22px; max-width: 82ch; color: var(--txt-dim); font-size: .96rem; }
.light .acc .a { color: #46525d; }
.acc .a p { margin-bottom: .8em; }

/* ---------- steps / process ---------- */
.steps { counter-reset: s; }
.step { display: grid; grid-template-columns: 74px 1fr; gap: clamp(16px, 2.4vw, 34px); padding: clamp(22px, 3vw, 34px) 0; border-bottom: 1px solid var(--line); }
.light .step { border-color: var(--line-dark); }
.step .n { font-family: var(--f-mono); font-size: .78rem; color: var(--accent); letter-spacing: .1em; padding-top: .4em; }
.step h4 { margin-bottom: .4em; }
.step p { color: var(--txt-dim); font-size: .95rem; margin: 0; max-width: 72ch; }
.light .step p { color: #46525d; }

/* sticky two column */
.sticky-2 { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: clamp(28px, 5vw, 80px); align-items: start; }
.sticky-2 .side { position: sticky; top: 110px; }
.sticky-2 .side h2 { margin-bottom: .35em; }

/* ---------- image blocks ---------- */
.frame { position: relative; overflow: hidden; background: var(--surface); }
.frame img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.1s var(--ease); }
.frame:hover img { transform: scale(1.05); }
.frame .cap { position: absolute; left: 0; bottom: 0; right: 0; padding: 14px 18px; background: linear-gradient(transparent, rgba(10,12,14,.9)); font-family: var(--f-mono); font-size: .62rem; letter-spacing: .14em; text-transform: uppercase; color: #fff; }
.ar-43 { aspect-ratio: 4/3; } .ar-169 { aspect-ratio: 16/9; } .ar-11 { aspect-ratio: 1/1; } .ar-32 { aspect-ratio: 3/2; }

/* ---------- ticker ---------- */
.ticker { overflow: hidden; border-block: 1px solid var(--line); padding: 16px 0; background: var(--ink-2); }
.ticker-in { display: flex; gap: 0; width: max-content; animation: tick 46s linear infinite; }
.ticker:hover .ticker-in { animation-play-state: paused; }
@keyframes tick { to { transform: translateX(-50%); } }
.ticker a { display: inline-flex; align-items: center; gap: 1.1rem; padding: 0 1.6rem; font-family: var(--f-mono); font-size: .7rem; letter-spacing: .16em; text-transform: uppercase; color: var(--txt-dim); border-right: 1px solid var(--line); transition: color .25s; }
.ticker a:hover { color: var(--accent); }
.ticker a::before { content: ''; width: 5px; height: 5px; background: var(--accent); }

/* ---------- filter / product browser ---------- */
.filters { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; align-items: end; }
.fld { display: flex; flex-direction: column; gap: 6px; }
.fld label { font-family: var(--f-mono); font-size: .62rem; letter-spacing: .14em; text-transform: uppercase; color: var(--txt-dim); }
.light .fld label { color: var(--ink-txt-dim); }
.fld input, .fld select, .fld textarea {
  background: rgba(255,255,255,.04); border: 1px solid var(--line-strong); color: var(--txt);
  padding: .78em .9em; font-size: .92rem; font-family: var(--f-mono); letter-spacing: .02em; width: 100%;
  transition: border-color .25s, background .25s;
}
.light .fld input, .light .fld select, .light .fld textarea { background: #fff; border-color: var(--line-dark-strong); color: var(--ink-txt); }
.fld input:focus, .fld select:focus, .fld textarea:focus { outline: 0; border-color: var(--accent); background: rgba(255,90,31,.05); }
.fld .unit { font-family: var(--f-mono); font-size: .6rem; color: var(--txt-mute); }
.chk { display: flex; align-items: center; gap: .6em; cursor: pointer; font-family: var(--f-mono); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: var(--txt-dim); user-select: none; }
.light .chk { color: var(--ink-txt-dim); }
.chk input { appearance: none; width: 15px; height: 15px; border: 1px solid var(--line-strong); background: none; cursor: pointer; position: relative; flex-shrink: 0; transition: background .2s, border-color .2s; }
.light .chk input { border-color: var(--line-dark-strong); }
.chk input:checked { background: var(--accent); border-color: var(--accent); }
.chk input:checked::after { content: ''; position: absolute; left: 4px; top: 1px; width: 4px; height: 8px; border: solid #0a0c0e; border-width: 0 2px 2px 0; transform: rotate(45deg); }

.results-bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding: 18px 0; border-bottom: 1px solid var(--line); margin-bottom: 26px; }
.light .results-bar { border-color: var(--line-dark); }
.pager { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; margin-top: 40px; }
.pager button { width: 38px; height: 38px; border: 1px solid var(--line-dark-strong); background: none; cursor: pointer; font-family: var(--f-mono); font-size: .74rem; transition: background .2s, color .2s, border-color .2s; color: var(--ink-txt); }
.pager button:hover { border-color: var(--accent); }
.pager button.on { background: var(--accent); border-color: var(--accent); color: #0a0c0e; }

/* ---------- match result ---------- */
.match-opt { border: 1px solid var(--line-dark); background: #fff; padding: 0; display: grid; grid-template-columns: 190px 1fr auto; gap: 0; align-items: stretch; }
.match-opt + .match-opt { margin-top: 14px; }
.match-opt .lvl { padding: 16px; background: var(--ink); color: #fff; display: flex; flex-direction: column; justify-content: space-between; gap: 12px; }
.match-opt .lvl b { font-family: var(--f-display); font-size: 1.5rem; line-height: 1; }
.match-opt .lvl span { font-family: var(--f-mono); font-size: .58rem; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); }
.match-opt .mid { padding: 18px 20px; display: flex; gap: 18px; align-items: center; }
.match-opt .mid img { width: 108px; height: 82px; object-fit: contain; background: #f6f6f4; border: 1px solid var(--line-dark); }
.match-opt .fit { padding: 18px 22px; border-left: 1px solid var(--line-dark); display: flex; flex-direction: column; gap: 8px; justify-content: center; min-width: 190px; }
.bar { height: 3px; background: var(--line-dark); position: relative; overflow: hidden; }
.bar i { position: absolute; inset: 0 auto 0 0; background: var(--accent); width: 0; transition: width .9s var(--ease); }

/* ---------- forms ---------- */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px 18px; }
.form-grid .full { grid-column: 1 / -1; }
.fset { border: 1px solid var(--line); padding: clamp(20px, 3vw, 32px); margin-bottom: 22px; }
.light .fset { border-color: var(--line-dark); }
.fset > legend { font-family: var(--f-mono); font-size: .66rem; letter-spacing: .2em; text-transform: uppercase; color: var(--accent); padding: 0 10px; font-weight: 600; }
.light .fset > legend { color: var(--accent-deep); }
.chk-grid { display: flex; flex-wrap: wrap; gap: 10px 22px; }
.err { color: var(--accent); font-family: var(--f-mono); font-size: .64rem; letter-spacing: .08em; margin-top: 5px; display: none; }
.fld.bad input, .fld.bad select, .fld.bad textarea { border-color: var(--accent); }
.fld.bad .err { display: block; }
.ok-box { border: 1px solid var(--accent); padding: 34px; background: rgba(255,90,31,.06); }
.ok-box .ref { font-family: var(--f-mono); font-size: 1.5rem; color: var(--accent); letter-spacing: .06em; font-weight: 600; }

/* ---------- footer ---------- */
.ftr { background: #07090b; border-top: 1px solid var(--line); padding-top: clamp(48px, 7vw, 88px); }
.ftr-grid { display: grid; grid-template-columns: 1.5fr repeat(4, 1fr); gap: clamp(24px, 3vw, 44px); padding-bottom: 56px; }
.ftr h5 { font-family: var(--f-mono); font-size: .62rem; letter-spacing: .2em; text-transform: uppercase; color: var(--accent); margin: 0 0 18px; font-weight: 600; }
.ftr ul { list-style: none; padding: 0; margin: 0; }
.ftr li { margin-bottom: .55em; }
.ftr a { font-size: .88rem; color: var(--txt-dim); transition: color .2s, padding-left .25s var(--ease); }
.ftr a:hover { color: var(--txt); padding-left: 5px; }
.ftr-bot { border-top: 1px solid var(--line); padding: 26px 0 34px; display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; align-items: center; }
.ftr-bot p { margin: 0; font-family: var(--f-mono); font-size: .64rem; letter-spacing: .1em; color: var(--txt-mute); text-transform: uppercase; }
.ftr-cta { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; border: 1px solid var(--line); border-left: 2px solid var(--accent); padding: clamp(24px, 4vw, 44px); margin-bottom: clamp(40px, 6vw, 64px); }
.ftr-cta h2 { margin: 0; font-size: clamp(1.4rem, 3vw, 2.4rem); }
.ftr-cta p { margin: .5em 0 0; color: var(--txt-dim); max-width: 62ch; }

/* ---------- misc ---------- */
.pill { display: inline-flex; align-items: center; gap: .5em; font-family: var(--f-mono); font-size: .6rem; letter-spacing: .14em; text-transform: uppercase; padding: 5px 10px; border: 1px solid var(--line-strong); color: var(--txt-dim); }
.pill.on { border-color: var(--accent); color: var(--accent); }
.light .pill { border-color: var(--line-dark-strong); color: var(--ink-txt-dim); }
.light .pill.on { border-color: var(--accent-deep); color: var(--accent-deep); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 4vw, 60px); align-items: center; }
.split-40 { grid-template-columns: .8fr 1.2fr; }
.split-60 { grid-template-columns: 1.2fr .8fr; }

.prose h2 { margin-top: 2em; } .prose h2:first-child { margin-top: 0; }
.prose h3 { margin-top: 1.6em; }
.prose p { max-width: 76ch; }
.prose ul, .prose ol { max-width: 76ch; }
.prose table { margin: 1.6em 0; }

.grid-bg { position: absolute; inset: 0; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 64px 64px; opacity: .3; pointer-events: none; mask-image: radial-gradient(ellipse at 70% 30%, #000 10%, transparent 72%); }
.light .grid-bg { background-image: linear-gradient(var(--line-dark) 1px, transparent 1px), linear-gradient(90deg, var(--line-dark) 1px, transparent 1px); }

.stat-lg { font-family: var(--f-display); font-weight: 900; font-size: clamp(2.6rem, 6vw, 5rem); line-height: .92; letter-spacing: -.035em; color: var(--accent); }
.light .stat-lg { color: var(--accent-deep); }

.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -9999px; top: 0; z-index: 1000; background: var(--accent); color: #0a0c0e; padding: 10px 16px; font-family: var(--f-mono); font-size: .7rem; }
.skip:focus { left: 0; }

/* ---------- responsive ---------- */
@media (max-width: 1180px) {
  .g-5 { grid-template-columns: repeat(3, 1fr); }
  .ftr-grid { grid-template-columns: 1fr 1fr 1fr; }
  .mega-in { grid-template-columns: repeat(3, 1fr); }
  .mega-cta { grid-column: 1 / -1; border-left: 0; border-top: 1px solid var(--line); padding-left: 0; padding-top: 22px; }
}
@media (max-width: 940px) {
  .nav { display: none; position: fixed; inset: 86px 0 0; background: var(--ink-2); flex-direction: column; align-items: stretch; gap: 0; overflow-y: auto; padding: 20px var(--gut) 60px; margin: 0; }
  body.menu-open .nav { display: flex; }
  .nav > li { border-bottom: 1px solid var(--line); }
  .nav > li > a { padding: 16px 0; font-size: .82rem; }
  .nav > li > a::after { display: none; }
  .mega { position: static; opacity: 1; visibility: visible; transform: none; border: 0; background: none; display: none; padding: 0 0 14px; }
  .nav > li.open .mega { display: block; }
  .mega-in { grid-template-columns: 1fr; padding: 0; gap: 0; }
  .mega-col { padding: 6px 0 12px 14px; }
  .mega-col h5 { margin-bottom: 8px; }
  .mega-cta { border: 0; padding: 14px 0 0 14px; }
  .burger { display: block; }
  .hdr-cta .btn:not(.burger) { display: none; }
  .g-4, .g-3 { grid-template-columns: repeat(2, 1fr); }
  .sticky-2 { grid-template-columns: 1fr; } .sticky-2 .side { position: static; }
  .split, .split-40, .split-60 { grid-template-columns: 1fr; }
  .match-opt { grid-template-columns: 1fr; }
  .match-opt .lvl { flex-direction: row; align-items: center; }
  .match-opt .fit { border-left: 0; border-top: 1px solid var(--line-dark); }
  .form-grid { grid-template-columns: 1fr; }
  .ftr-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .g-2, .g-3, .g-4, .g-5 { grid-template-columns: 1fr; }
  .spec-strip div { flex-basis: 50%; border-bottom: 1px solid var(--line); }
  .hdr-in { height: 64px; }
  .step { grid-template-columns: 1fr; gap: 6px; }
  .step .n { padding-top: 0; }
  .ftr-grid { grid-template-columns: 1fr; }
  .ftr-cta { grid-template-columns: 1fr; }
  .match-opt .mid { flex-wrap: wrap; }
  table { font-size: .84rem; }
  .tbl th, .tbl td { padding: 10px 9px; }
}

@media (max-width: 700px) {
  h1 { font-size: clamp(1.85rem, 8.4vw, 2.6rem); letter-spacing: -.03em; }
  .phero h1 { font-size: clamp(1.7rem, 7.6vw, 2.4rem); }
  h2 { font-size: clamp(1.35rem, 6vw, 1.9rem); }
  .eyebrow { letter-spacing: .16em; font-size: .6rem; flex-wrap: wrap; }
  .hero-in { padding-top: 64px; }
  .btn { padding: .85em 1.15em; font-size: .68rem; letter-spacing: .1em; }
  .spec-strip div { padding: 14px 16px; }
  .spec-strip b { font-size: 1.45rem; }
  .sec-head { gap: .7rem; }
  .sec-head .sub { flex-basis: 100%; }
  .fset { padding: 18px 16px; }
  .dimbox { padding: 26px 18px 34px; }
  .qa p { font-size: 1rem; }
  .lead { font-size: 1rem; }
  .hdr-cta { display: none; }
  .burger { display: block; }
  .match-opt .mid { flex-direction: column; align-items: flex-start; }
  .ftr-cta h2 { font-size: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .rv { opacity: 1; transform: none; }
  .mask-line > span { transform: none; }
}

@media print {
  .hdr, .ftr, .ticker, .ruler { display: none; }
  body { background: #fff; color: #000; }
}