/* =============================================================================
   CLOUDRIDGE STUDIOS · site.css (2026-10 redesign)
   Same family as jetpathapp.com: ink navy, warm gold, Schibsted Grotesk and
   JetBrains Mono. The hero is the crest come to life: ridges, cloud and a lake.
   ============================================================================= */

:root {
    --display: "Schibsted Grotesk", "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
    --sans: "Schibsted Grotesk", "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
    --mono: "JetBrains Mono", "Cascadia Mono", Consolas, "SF Mono", Menlo, monospace;

    --wrap: 1200px;
    --dw: 280px;
    --gutter: clamp(16px, 4vw, 40px);
    --hdr-h: 72px;
    --ease: cubic-bezier(.2, .7, .1, 1);

    --gold: #e7b44c;
    --gold-hi: #f7d98f;
    --gold-lo: #b8862a;
    --green: #47c58a;

    --bg: #070c18;
    --bg-2: #0a1120;
    --surface: #0e1629;
    --ink: #f3ede2;
    --ink-2: #aeb0b4;
    --ink-3: #6d7486;
    --line: rgba(231, 206, 160, .12);
    --line-2: rgba(231, 206, 160, .22);
    --accent: #e7b44c;
    --accent-ink: #e7b44c;
    --glass: rgba(10, 16, 30, .72);
    --card: rgba(16, 24, 42, .6);
    --shadow: 0 30px 80px -30px rgba(0, 0, 0, .7), 0 10px 30px -12px rgba(0, 0, 0, .55);
    --grain-op: .05;
    color-scheme: dark;
}

[data-theme="light"] {
    --bg: #f4f6f9;
    --bg-2: #eceff4;
    --surface: #ffffff;
    --ink: #0b1a33;
    --ink-2: #4a5670;
    --ink-3: #8790a3;
    --line: rgba(11, 26, 51, .09);
    --line-2: rgba(11, 26, 51, .17);
    --accent: #e9ae35;
    --accent-ink: #1d3a66;
    --glass: rgba(255, 255, 255, .8);
    --card: rgba(255, 255, 255, .9);
    --shadow: 0 30px 70px -34px rgba(11, 26, 51, .35), 0 10px 26px -16px rgba(11, 26, 51, .22);
    --grain-op: 0;
    color-scheme: light;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--hdr-h) + 16px); }
body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font: 400 17px/1.6 var(--sans);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
    transition: background-color .5s var(--ease), color .5s var(--ease);
}
body::after {
    content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 100;
    opacity: var(--grain-op);
    background-image: url("../images/grain.svg");
    mix-blend-mode: overlay;
}
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; }
h1, h2, h3, p, dl, dd, ol, ul { margin: 0; padding: 0; }
ol, ul { list-style: none; }
::selection { background: var(--gold); color: #0b1222; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
::view-transition-old(root), ::view-transition-new(root) { animation: none; mix-blend-mode: normal; }

.wrap { width: 100%; max-width: calc(var(--wrap) + var(--gutter) * 2); margin: 0 auto; padding: 0 var(--gutter); }
.skip-link { position: absolute; left: 16px; top: -60px; z-index: 300; background: var(--gold); color: #0b1222; padding: 10px 16px; border-radius: 10px; font-weight: 600; transition: top .2s; }
.skip-link:focus { top: 12px; }

/* ---------- type ---------- */
.kicker {
    display: inline-flex; align-items: center; gap: 10px;
    font: 500 12px/1.3 var(--mono); letter-spacing: .16em; text-transform: uppercase;
    color: var(--accent-ink);
    margin-bottom: 22px;
}
.h2 { font: 700 clamp(40px, 5.4vw, 78px)/1.02 var(--display); letter-spacing: -.04em; text-wrap: balance; }
.h2 > span, .h2 > em { display: block; }
.h2-xl { font-size: clamp(52px, 8vw, 120px); }
em { font-style: italic; color: var(--accent-ink); }
/* gold is kept for the one line that matters: the hero. Section headings stay plain. */
.h2 em { font-style: normal; color: inherit; }
.hero-title em { font-weight: 700; padding-right: .08em; color: var(--gold); }
[data-theme="light"] .hero-title em { color: #c08414; }
.lede { font-size: clamp(17px, 1.35vw, 19px); line-height: 1.65; color: var(--ink-2); max-width: 48ch; text-wrap: pretty; }

:lang(zh) { --display: "Schibsted Grotesk", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif; }
:lang(ja) { --display: "Schibsted Grotesk", "Hiragino Sans", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif; }
:lang(ko) { --display: "Schibsted Grotesk", "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif; }
:lang(zh) em, :lang(ja) em, :lang(ko) em { font-style: normal; }
:lang(zh) :is(.h2, .hero-title, h3), :lang(ja) :is(.h2, .hero-title, h3), :lang(ko) :is(.h2, .hero-title, h3) { letter-spacing: .01em; line-height: 1.22; }
:lang(zh) .hero-title, :lang(ja) .hero-title, :lang(ko) .hero-title { font-size: clamp(36px, 5.6vw, 84px); }
:lang(zh) .h2, :lang(ja) .h2, :lang(ko) .h2 { font-size: clamp(34px, 4.6vw, 64px); }
:lang(zh) .h2-xl, :lang(ja) .h2-xl, :lang(ko) .h2-xl { font-size: clamp(40px, 6vw, 88px); }
:lang(zh) .kicker, :lang(ja) .kicker, :lang(ko) .kicker { letter-spacing: .08em; }

/* ---------- buttons and links ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    height: 52px; padding: 0 26px; border-radius: 999px;
    font: 600 15px/1 var(--sans);
    transition: transform .3s var(--ease), box-shadow .3s var(--ease);
    white-space: nowrap;
}
.btn-gold {
    color: #0b1222;
    background: linear-gradient(180deg, var(--gold-hi), var(--gold) 55%, #d9a23c);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .45), 0 10px 24px -10px rgba(231, 180, 76, .7);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .5), 0 16px 34px -12px rgba(231, 180, 76, .85); }
.text-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 500; color: var(--ink); padding: 8px 2px; border-bottom: 1px solid var(--line-2); transition: color .3s, border-color .3s, gap .3s var(--ease); }
.text-link:hover { color: var(--accent-ink); border-color: var(--accent); gap: 12px; }
.play-btn {
    display: inline-flex; align-items: center; gap: 12px;
    height: 58px; padding: 0 24px 0 20px; border-radius: 16px;
    background: #05070c; color: #fff;
    border: 1px solid rgba(255, 255, 255, .14);
    box-shadow: 0 18px 40px -18px rgba(0, 0, 0, .8);
    transition: transform .3s var(--ease), border-color .3s;
}
.play-btn:hover { transform: translateY(-2px); border-color: rgba(231, 180, 76, .6); }
.play-btn span { display: flex; flex-direction: column; line-height: 1.05; text-align: left; }
.play-btn small { font: 500 11px/1.2 var(--sans); letter-spacing: .04em; opacity: .75; }
.play-btn strong { font: 600 19px/1.15 var(--sans); }
.icon-btn {
    height: 40px; min-width: 40px; padding: 0 10px; border-radius: 999px;
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    color: var(--ink-2); transition: color .25s, background-color .25s;
}
.icon-btn:hover { color: var(--ink); background: var(--line); }
.live-dot { position: relative; width: 8px; height: 8px; border-radius: 50%; background: var(--green); flex: none; }

/* ---------- header ---------- */
.hdr { position: fixed; inset: 0 0 auto; z-index: 200; padding: 14px var(--gutter) 0; pointer-events: none; }
.hdr-bar {
    pointer-events: auto;
    max-width: calc(var(--wrap) + 24px); margin: 0 auto; height: 58px;
    display: flex; align-items: center; gap: 24px; padding: 0 10px 0 16px;
    border-radius: 18px; border: 1px solid transparent;
    transition: background-color .4s var(--ease), border-color .4s, box-shadow .4s, backdrop-filter .4s;
}
.hdr.is-scrolled .hdr-bar, .subpage .hdr-bar {
    background: var(--glass); border-color: var(--line);
    box-shadow: 0 12px 40px -24px rgba(0, 0, 0, .6);
    -webkit-backdrop-filter: blur(18px) saturate(1.3); backdrop-filter: blur(18px) saturate(1.3);
}
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand-crest { width: 38px; height: auto; }
.crest-on-light { display: none; }
[data-theme="light"] .crest-on-light { display: block; }
[data-theme="light"] .crest-on-dark { display: none; }
.brand-word { font: 700 20px/1 var(--display); letter-spacing: -.025em; white-space: nowrap; }
.brand-word span { font-weight: 500; color: var(--ink-2); }
.hdr-nav { display: flex; gap: 4px; margin-left: auto; }
.hdr-link { padding: 9px 14px; border-radius: 999px; font-size: 14.5px; font-weight: 500; color: var(--ink-2); transition: color .25s, background-color .25s; }
.hdr-link:hover { color: var(--ink); }
.hdr-link.is-active { color: var(--ink); background: var(--line); }
.hdr-tools { display: flex; align-items: center; gap: 4px; }
.theme-btn .i-moon { display: none; }
[data-theme="light"] .theme-btn .i-sun { display: none; }
[data-theme="light"] .theme-btn .i-moon { display: block; }
.lang { position: relative; }
.lang-current { font: 600 12px/1 var(--mono); letter-spacing: .06em; }
.lang-list {
    position: absolute; right: 0; top: calc(100% + 10px); min-width: 200px;
    padding: 6px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line-2);
    box-shadow: var(--shadow);
    opacity: 0; visibility: hidden; transform: translateY(-6px) scale(.98); transform-origin: top right;
    transition: opacity .2s, transform .25s var(--ease), visibility 0s .25s;
    max-height: min(70vh, 480px); overflow: auto;
}
.lang.is-open .lang-list { opacity: 1; visibility: visible; transform: none; transition: opacity .2s, transform .25s var(--ease); }
.lang-opt { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 9px 12px; border-radius: 10px; font-size: 14.5px; color: var(--ink-2); text-align: left; }
.lang-opt i { font: 500 11px/1 var(--mono); font-style: normal; color: var(--ink-3); letter-spacing: .08em; }
.lang-opt:hover { background: var(--line); color: var(--ink); }
.lang-opt.is-on { color: var(--ink); }
.lang-opt.is-on i { color: var(--accent-ink); }
.burger { display: none; width: 40px; flex-direction: column; gap: 6px; }
.burger span { display: block; width: 18px; height: 1.6px; background: var(--ink); border-radius: 2px; transition: transform .35s var(--ease); }
.burger[aria-expanded="true"] span:first-child { transform: translateY(3.8px) rotate(45deg); }
.burger[aria-expanded="true"] span:last-child { transform: translateY(-3.8px) rotate(-45deg); }

/* ---------- hero: the crest, alive ---------- */
.hero {
    position: relative; isolation: isolate;
    min-height: 100svh;
    display: flex; flex-direction: column;
    padding: calc(var(--hdr-h) + clamp(28px, 7vh, 100px)) 0 clamp(290px, 34vh, 420px);
    overflow: hidden;
}
.ridge { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; display: block; }
.hero-inner { position: relative; }
.hero-title {
    font: 750 clamp(42px, min(5.6vw, 9.5vh), 92px)/.98 var(--display);
    letter-spacing: -.042em;
    max-width: 17ch;
    text-wrap: balance;
}
.hero-title .line { display: block; padding-bottom: .12em; margin-bottom: -.1em; }
.hero-lede { margin-top: 28px; font-size: clamp(17px, 1.4vw, 20px); line-height: 1.6; color: var(--ink-2); max-width: 40em; text-wrap: pretty; }
.hero-actions { margin-top: 34px; display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }

/* entrance */
html.js .rise { opacity: 0; transform: translateY(18px); }
html.js body.is-loaded .rise { opacity: 1; transform: none; transition: opacity 1s var(--ease), transform 1.1s var(--ease); }
html.js body.is-loaded .rise:nth-child(2) { transition-delay: .08s; }
html.js body.is-loaded .rise:nth-child(3) { transition-delay: .18s; }
html.js body.is-loaded .rise:nth-child(4) { transition-delay: .28s; }
html.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s var(--ease), transform 1s var(--ease); }
html.js .reveal.is-in { opacity: 1; transform: none; }

/* ---------- sections ---------- */
section { position: relative; }
.work { overflow-x: clip; }
.work, .studio, .contact { padding: clamp(72px, 8vw, 116px) 0; }

/* work */
.work-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(40px, 6vw, 96px); align-items: center; }
.work-name { display: flex; align-items: center; gap: 20px; }
.work-icon { width: clamp(56px, 5vw, 72px); height: auto; border-radius: 22%; box-shadow: 0 16px 34px -14px rgba(0, 0, 0, .7); }
.work-tag { margin: 18px 0 20px; font: 600 clamp(21px, 2vw, 27px)/1.25 var(--display); letter-spacing: -.02em; color: var(--accent-ink); max-width: 26ch; }
.facts { margin: 34px 0 36px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.facts > div { padding: 16px 0; border-bottom: 1px solid var(--line); }
.facts > div:nth-child(odd) { padding-right: 20px; }
.facts > div:nth-child(even) { padding-left: 20px; border-left: 1px solid var(--line); }
.facts dt { font: 500 11px/1.3 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 6px; }
.facts dd { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 16.5px; }
.work-actions { display: flex; align-items: center; gap: 26px; flex-wrap: wrap; }

.work-visual { position: relative; height: clamp(520px, 50vw, 660px); }
.halo {
    position: absolute; left: 50%; top: 50%; width: 120%; aspect-ratio: 1; transform: translate(-50%, -50%);
    background: radial-gradient(closest-side, rgba(231, 180, 76, .22), rgba(231, 180, 76, .06) 55%, transparent 72%);
    pointer-events: none;
}
[data-theme="light"] .halo { background: radial-gradient(closest-side, rgba(233, 174, 53, .26), rgba(120, 160, 220, .12) 55%, transparent 72%); }
.device {
    --dw: 280px;
    position: absolute; width: var(--dw); aspect-ratio: 720 / 1600;
    padding: calc(var(--dw) * .028);
    border-radius: calc(var(--dw) * .15);
    background: linear-gradient(145deg, #2a2f3a, #0b0e14 40%, #161a22);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .08), inset 0 0 0 3px #05070b, 0 50px 100px -30px rgba(0, 0, 0, .75), 0 20px 40px -20px rgba(0, 0, 0, .6);
}
[data-theme="light"] .device { box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .1), inset 0 0 0 3px #05070b, 0 50px 90px -34px rgba(11, 26, 51, .5), 0 18px 36px -18px rgba(11, 26, 51, .35); }
.device-screen { position: relative; width: 100%; height: 100%; border-radius: calc(var(--dw) * .125); overflow: hidden; background: #0b1222; }
.device-screen::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(115deg, rgba(255, 255, 255, .09) 0%, rgba(255, 255, 255, 0) 30%); }
.device-screen img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.device-front { --dw: clamp(220px, 21vw, 280px); left: 8%; top: 4%; z-index: 2; }
.device-back { --dw: clamp(200px, 19vw, 254px); right: 4%; top: 14%; transform: rotate(5deg); opacity: .96; }

.feats { margin-top: clamp(56px, 7vw, 96px); display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 clamp(20px, 2.6vw, 40px); border-top: 1px solid var(--line-2); }
.feats li { padding-top: 24px; }
.feats h3 { font: 700 19px/1.25 var(--display); letter-spacing: -.015em; margin-bottom: 8px; }
.feats p { font-size: 15.5px; line-height: 1.6; color: var(--ink-2); }

/* studio */
.studio { background: linear-gradient(to bottom, var(--bg), var(--bg-2) 25%, var(--bg-2) 75%, var(--bg)); overflow-x: clip; }
.studio-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: clamp(32px, 6vw, 96px); align-items: center; }
.studio-copy .h2 { margin-bottom: 30px; }
.studio-copy .h2 em { white-space: nowrap; }
.studio-copy .lede + .lede { margin-top: 16px; }
.crest-art { position: relative; margin: 0; display: grid; place-items: center; aspect-ratio: 1; max-width: 440px; width: 100%; justify-self: center; }
.crest-art img { position: relative; width: 56%; height: auto; filter: drop-shadow(0 34px 50px rgba(0, 0, 0, .55)); }
[data-theme="light"] .crest-art img { filter: drop-shadow(0 30px 40px rgba(11, 26, 51, .35)); }
.crest-ring { position: absolute; inset: 9%; border-radius: 50%; border: 1px solid rgba(231, 180, 76, .24); }

.ledger { margin-top: clamp(56px, 7vw, 96px); border-top: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2); }
.principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.principles li { padding: clamp(28px, 3vw, 40px) clamp(20px, 2.6vw, 40px) clamp(28px, 3vw, 40px) 0; }
.principles li + li { border-left: 1px solid var(--line); padding-left: clamp(20px, 2.6vw, 40px); }
.principles h3 { font: 700 clamp(21px, 1.8vw, 25px)/1.2 var(--display); letter-spacing: -.02em; margin-bottom: 12px; }
.principles p { color: var(--ink-2); font-size: 16px; line-height: 1.65; }
.nums { display: flex; flex-wrap: wrap; gap: 10px clamp(24px, 3vw, 48px); padding: 22px 0; border-top: 1px solid var(--line); }
.nums > div { display: flex; align-items: baseline; gap: 8px; }
.nums dd { order: -1; font: 700 18px/1.2 var(--display); letter-spacing: -.01em; color: var(--ink); }
.nums dt { font-size: 15px; color: var(--ink-2); }

/* contact */
.contact-inner { display: flex; flex-direction: column; align-items: center; text-align: center; }
.contact .lede { margin: 26px auto 0; max-width: 40ch; }
.contact .h2 > span, .contact .h2 > em { display: inline; }
.mail {
    margin: 44px auto 0; display: flex; width: min(100%, 640px); flex-direction: column; align-items: center; gap: 10px;
    padding: 24px clamp(22px, 4vw, 44px) 26px; border-radius: 24px;
    background: var(--card); border: 1px solid var(--line-2);
    transition: transform .4s var(--ease), border-color .4s, box-shadow .4s;
    max-width: 100%;
}
.mail:hover { transform: translateY(-3px); border-color: var(--accent); box-shadow: 0 24px 60px -30px rgba(231, 180, 76, .55); }
.mail-label { font: 500 11px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--ink-3); }
.mail-addr { font: 700 clamp(15px, 5vw, 40px)/1.15 var(--display); letter-spacing: -.025em; color: var(--ink); overflow-wrap: anywhere; }
.mail:hover .mail-addr { color: var(--accent-ink); }
.contact-cards { margin-top: 22px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; width: min(100%, 640px); margin-inline: auto; text-align: left; }
.ccard { display: flex; flex-direction: column; gap: 6px; padding: 20px 22px; border-radius: 18px; border: 1px solid var(--line); transition: border-color .3s, transform .4s var(--ease), background-color .3s; }
.ccard:hover { border-color: var(--accent); transform: translateY(-3px); background: var(--card); }
.ccard-t { display: flex; align-items: center; justify-content: space-between; gap: 10px; font: 700 17px/1.25 var(--display); letter-spacing: -.01em; }
.ccard-t svg { color: var(--accent-ink); flex: none; transition: transform .3s var(--ease); }
.ccard:hover .ccard-t svg { transform: translate(2px, -2px); }
.ccard-d { font-size: 14.5px; line-height: 1.5; color: var(--ink-2); }

/* ---------- footer ---------- */
.ftr { position: relative; isolation: isolate; padding: clamp(200px, 17vw, 250px) 0 34px; overflow: hidden; }
.ridge-ftr { z-index: -1; inset: 0 0 auto; height: clamp(190px, 16vw, 236px); -webkit-mask-image: linear-gradient(to bottom, transparent, #000 70px, #000 62%, transparent); mask-image: linear-gradient(to bottom, transparent, #000 70px, #000 62%, transparent); }
.ftr-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr)); gap: 32px; padding-bottom: 40px; border-bottom: 1px solid var(--line); }
.ftr-brand { display: flex; align-items: flex-start; gap: 16px; }
.ftr-brand img { width: 58px; height: auto; flex: none; }
.ftr-name { font: 700 20px/1.2 var(--display); letter-spacing: -.02em; }
.ftr-tag { margin-top: 6px; font-size: 15px; color: var(--ink-2); max-width: 30ch; }
.ftr-col { display: flex; flex-direction: column; gap: 10px; }
.ftr-col h2 { font: 500 11px/1.3 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 4px; }
.ftr-col a { font-size: 15px; color: var(--ink-2); width: fit-content; overflow-wrap: anywhere; transition: color .25s; }
.ftr-col a:hover { color: var(--accent-ink); }
.ftr-bottom { padding-top: 24px; font: 400 12.5px/1.5 var(--mono); color: var(--ink-3); }

/* ---------- legal pages ---------- */
.legal { padding: calc(var(--hdr-h) + clamp(64px, 10vw, 120px)) 0 40px; }
.legal-wrap { max-width: calc(780px + var(--gutter) * 2); }
.legal h1 { font: 750 clamp(44px, 6vw, 80px)/1 var(--display); letter-spacing: -.04em; }
.legal-updated { margin-top: 20px; font: 500 14px/1.4 var(--mono); color: var(--ink-2); letter-spacing: .02em; }
.legal-intro { margin-top: 30px; font-size: clamp(18px, 1.5vw, 20px); line-height: 1.6; color: var(--ink); text-wrap: pretty; }
.legal-sections { margin-top: 54px; counter-reset: sec; border-top: 1px solid var(--line); }
.legal-sections section { display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 8px 20px; padding: 28px 0; border-bottom: 1px solid var(--line); counter-increment: sec; }
.legal-sections section::before { content: counter(sec, decimal-leading-zero); font: 500 13px/1.9 var(--mono); color: var(--accent-ink); grid-row: span 2; }
.legal-sections h2 { font: 700 21px/1.3 var(--display); letter-spacing: -.015em; }
.legal-sections p { color: var(--ink-2); line-height: 1.7; }
:lang(zh) .legal h1, :lang(ja) .legal h1, :lang(ko) .legal h1 { font-size: clamp(36px, 5vw, 60px); letter-spacing: .01em; }

/* ---------- 404 ---------- */
.nf { min-height: 100svh; }
.nf-code { font: 700 clamp(84px, 16vw, 200px)/1 var(--mono); letter-spacing: -.04em; background: linear-gradient(180deg, var(--gold-hi), var(--gold) 60%, var(--gold-lo)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nf .hero-title { margin-top: 10px; }

/* ---------- responsive ---------- */
@media (max-width: 1040px) {
    .work-grid { grid-template-columns: 1fr; }
    .work-visual { height: clamp(480px, 90vw, 620px); max-width: 620px; width: 100%; margin: 0 auto; }
    .device-front { --dw: clamp(200px, 38vw, 270px); left: 6%; }
    .device-back { --dw: clamp(180px, 34vw, 240px); right: 6%; }
    .feats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .studio-grid { grid-template-columns: 1fr; }
    .crest-art { max-width: 380px; order: -1; }
    .principles { grid-template-columns: 1fr; }
    .principles li, .principles li + li { padding-left: 0; padding-right: 0; }
    .principles li + li { border-left: 0; border-top: 1px solid var(--line); }
    .ftr-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .ftr-brand { grid-column: 1 / -1; }
}
@media (max-width: 760px) {
    :root { --hdr-h: 64px; }
    .hdr { padding-top: 10px; }
    .hdr-bar { height: 54px; gap: 10px; padding: 0 6px 0 12px; }
    .hdr.is-open .hdr-bar { background: var(--glass); border-color: var(--line); -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px); }
    .burger { display: inline-flex; }
    .hdr-tools { margin-left: auto; }
    .hdr-nav {
        position: fixed; left: var(--gutter); right: var(--gutter); top: 74px;
        flex-direction: column; gap: 2px; padding: 10px; margin: 0;
        border-radius: 20px; background: var(--surface); border: 1px solid var(--line-2); box-shadow: var(--shadow);
        opacity: 0; visibility: hidden; transform: translateY(-8px);
        transition: opacity .25s, transform .3s var(--ease), visibility 0s .3s;
    }
    .hdr.is-open .hdr-nav { opacity: 1; visibility: visible; transform: none; transition: opacity .25s, transform .3s var(--ease); }
    .hdr-link { padding: 14px 16px; font-size: 17px; border-radius: 12px; }
    .hero { min-height: 100svh; padding-bottom: clamp(330px, 46vh, 420px); }
    .hero-actions { gap: 20px; }
    .facts { grid-template-columns: 1fr; }
    .facts > div:nth-child(odd), .facts > div:nth-child(even) { padding: 14px 0; border-left: 0; }
    .work-visual { height: clamp(420px, 118vw, 560px); }
    .device-front { --dw: clamp(170px, 50vw, 230px); left: 2%; }
    .device-back { --dw: clamp(150px, 44vw, 205px); right: 2%; top: 16%; }
    .feats { grid-template-columns: 1fr; }
    .feats li { padding: 18px 0; }
    .feats li + li { border-top: 1px solid var(--line); }
    .crest-art { max-width: 300px; }
    .principles li { padding: 24px 0; }
    .ftr-grid { grid-template-columns: 1fr 1fr; }
    .contact-cards { grid-template-columns: 1fr; }
    .legal-sections section { grid-template-columns: 1fr; }
    .legal-sections section::before { grid-row: auto; line-height: 1; }
}
@media (max-width: 400px) {
    .brand-word { font-size: 17px; }
    .brand-crest { width: 32px; }
    .ftr-grid { grid-template-columns: 1fr; }
}
@media (max-width: 360px) {
    .hdr-bar { gap: 4px; padding: 0 2px 0 10px; }
    .brand { gap: 8px; }
    .brand-word { font-size: 15px; }
    .brand-crest { width: 27px; }
    .icon-btn { min-width: 34px; padding: 0 6px; }
    .lang-current { display: 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; }
    html.js .rise, html.js .reveal { opacity: 1; transform: none; }
}