:root {
    color-scheme: dark;
    --bg: #040810;
    --bg-raised: #08111d;
    --panel: rgba(10, 23, 37, 0.78);
    --panel-solid: #0a1725;
    --line: rgba(117, 216, 255, 0.14);
    --line-strong: rgba(83, 219, 255, 0.34);
    --cyan: #4bdcff;
    --cyan-bright: #8beaff;
    --blue: #3187ff;
    --green: #58f0b3;
    --text: #edf8ff;
    --muted: #91a9ba;
    --muted-strong: #b7cad6;
    --danger: #ff8f9d;
    --radius: 18px;
    --shell: min(1180px, calc(100vw - 48px));
    --font-display: "Segoe UI Variable Display", "Segoe UI", system-ui, sans-serif;
    --font-body: "Segoe UI Variable Text", "Segoe UI", system-ui, sans-serif;
    --font-mono: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
    margin: 0;
    min-width: 320px;
    overflow-x: hidden;
    background:
        radial-gradient(circle at 82% 8%, rgba(26, 114, 181, 0.12), transparent 27rem),
        radial-gradient(circle at 12% 42%, rgba(0, 186, 228, 0.06), transparent 32rem),
        var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

body::before {
    position: fixed;
    inset: 0;
    z-index: -2;
    background-image: linear-gradient(rgba(73, 169, 212, 0.025) 1px, transparent 1px), linear-gradient(90deg, rgba(73, 169, 212, 0.025) 1px, transparent 1px);
    background-size: 64px 64px;
    content: "";
    pointer-events: none;
    mask-image: linear-gradient(to bottom, black, transparent 85%);
}

a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
svg { display: block; }
.shell { width: var(--shell); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 1000; padding: 10px 16px; transform: translateY(-150%); border-radius: 8px; background: var(--cyan); color: #021019; font-weight: 700; }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 2px solid var(--cyan-bright); outline-offset: 4px; }

.site-header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 100;
    border-bottom: 1px solid transparent;
    transition: background-color .25s ease, border-color .25s ease, backdrop-filter .25s ease;
}
.site-header.is-scrolled { border-color: var(--line); background: rgba(4, 8, 16, .78); backdrop-filter: blur(20px); }
.nav-shell { display: flex; min-height: 74px; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-family: var(--font-display); font-size: .94rem; font-weight: 750; letter-spacing: .2em; }
.brand-mark { width: 31px; height: 31px; overflow: visible; }
.brand-mark path { fill: none; stroke: var(--cyan); stroke-width: 2.1; stroke-linejoin: round; filter: drop-shadow(0 0 6px rgba(75, 220, 255, .5)); }
.brand-mark circle { fill: var(--cyan-bright); }
.primary-nav { display: flex; align-items: center; gap: 28px; color: var(--muted-strong); font-size: .88rem; }
.primary-nav a { position: relative; padding-block: 8px; transition: color .2s ease; }
.primary-nav > a:not(.nav-download)::after { position: absolute; right: 0; bottom: 2px; left: 0; height: 1px; transform: scaleX(0); background: var(--cyan); content: ""; transition: transform .2s ease; }
.primary-nav a:hover, .primary-nav a:focus-visible { color: var(--text); }
.primary-nav > a:hover::after { transform: scaleX(1); }
.primary-nav .nav-download { padding: 9px 18px; border: 1px solid var(--line-strong); border-radius: 9px; background: rgba(41, 191, 237, .08); color: var(--cyan-bright); font-weight: 700; }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 10px; border: 0; background: transparent; color: var(--text); }
.menu-toggle > span:not(.sr-only) { display: block; width: 22px; height: 1px; margin: 5px auto; background: currentColor; transition: transform .2s ease, opacity .2s ease; }

.section { position: relative; padding: 118px 0; }
.section-grid::before { position: absolute; inset: 0; background-image: linear-gradient(rgba(74, 201, 255, .035) 1px, transparent 1px), linear-gradient(90deg, rgba(74, 201, 255, .035) 1px, transparent 1px); background-size: 48px 48px; content: ""; mask-image: radial-gradient(ellipse at center, black, transparent 78%); pointer-events: none; }
.section-heading { max-width: 670px; margin-bottom: 52px; }
.section-heading.centered { margin-inline: auto; text-align: center; }
.section-index { margin-bottom: 15px; color: var(--cyan); font-family: var(--font-mono); font-size: .75rem; font-weight: 650; letter-spacing: .18em; }
.section-heading h2, .security-copy h2, .download-panel h2 { margin: 0; font-family: var(--font-display); font-size: clamp(2.2rem, 5vw, 4.2rem); font-weight: 650; letter-spacing: -.045em; line-height: 1.04; }
.section-heading h2 span, .download-panel h2 span { color: var(--cyan-bright); }
.section-heading p { max-width: 620px; margin: 22px 0 0; color: var(--muted); font-size: 1.06rem; }

.hero { position: relative; min-height: 100vh; min-height: 760px; display: grid; align-items: center; padding: 132px 0 96px; overflow: hidden; }
.hero::after { position: absolute; right: -15%; bottom: -42%; width: 75vw; height: 45vw; border: 1px solid rgba(76, 215, 255, .09); border-radius: 50%; content: ""; transform: rotate(-12deg); box-shadow: 0 0 120px rgba(31, 149, 210, .07) inset; }
.ambient { position: absolute; border-radius: 50%; filter: blur(1px); pointer-events: none; }
.ambient-one { top: 14%; left: -12rem; width: 28rem; height: 28rem; background: rgba(23, 166, 220, .07); box-shadow: 0 0 120px rgba(31, 190, 236, .12); }
.ambient-two { top: 16%; right: 2%; width: 32rem; height: 32rem; background: rgba(33, 109, 223, .09); filter: blur(80px); }
.hero-layout { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, .9fr) minmax(480px, 1.1fr); gap: clamp(44px, 7vw, 100px); align-items: center; }
.hero-copy { position: relative; z-index: 3; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin-bottom: 25px; color: var(--cyan-bright); font-family: var(--font-mono); font-size: .74rem; letter-spacing: .13em; text-transform: uppercase; }
.eyebrow span { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px var(--green); }
.hero h1 { margin: 0; font-family: var(--font-display); line-height: .98; }
.hero-wordmark { display: block; margin-bottom: 18px; background: linear-gradient(100deg, #fff 6%, #c4f5ff 45%, #5ddcff 78%); -webkit-background-clip: text; background-clip: text; color: transparent; font-size: clamp(4rem, 8.3vw, 7.3rem); font-weight: 780; letter-spacing: -.065em; filter: drop-shadow(0 0 32px rgba(69, 211, 255, .15)); }
.hero h1 > span:last-child { display: block; max-width: 700px; color: #d9e9f3; font-size: clamp(2rem, 4vw, 3.7rem); font-weight: 560; letter-spacing: -.05em; }
.hero h1 em { color: var(--cyan); font-style: normal; }
.hero-lead { max-width: 610px; margin: 28px 0 0; color: var(--muted-strong); font-size: clamp(1rem, 1.7vw, 1.15rem); line-height: 1.75; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 36px; }
.button { display: inline-flex; min-height: 51px; align-items: center; justify-content: center; gap: 10px; padding: 12px 22px; border: 1px solid transparent; border-radius: 10px; font-weight: 720; transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease, background-color .2s ease; }
.button svg { width: 21px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: linear-gradient(135deg, #6fe4ff, #2ab9ee); color: #02121b; box-shadow: 0 12px 35px rgba(40, 193, 235, .2), 0 0 0 1px rgba(150, 240, 255, .35) inset; }
.button-primary:hover { box-shadow: 0 16px 42px rgba(40, 193, 235, .3), 0 0 0 1px rgba(205, 250, 255, .6) inset; }
.button-secondary { border-color: var(--line); background: rgba(9, 22, 35, .65); color: var(--muted-strong); }
.button-secondary:hover { border-color: var(--line-strong); color: var(--text); }
.release-strip { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 13px; margin-top: 28px; color: var(--muted); font-size: .78rem; }
.availability { display: inline-flex; align-items: center; gap: 7px; color: #a9f8d5; }
.availability i { width: 6px; height: 6px; border-radius: 50%; background: var(--green); box-shadow: 0 0 9px var(--green); }
.release-divider { width: 1px; height: 13px; background: var(--line-strong); }
.release-fact { padding: 3px 8px; border: 1px solid rgba(75, 220, 255, .1); border-radius: 6px; background: rgba(75, 220, 255, .035); font-family: var(--font-mono); font-size: .68rem; }
.release-fact b { color: #a6c4d3; font-weight: 500; }

.hero-visual { position: relative; perspective: 1200px; }
.viewport-window { position: relative; overflow: hidden; border: 1px solid rgba(87, 213, 255, .24); border-radius: 17px; background: rgba(5, 14, 24, .88); box-shadow: 0 38px 90px rgba(0, 0, 0, .48), 0 0 70px rgba(31, 168, 226, .09), 0 0 0 1px rgba(255, 255, 255, .025) inset; transform: rotateY(-5deg) rotateX(2deg); transform-origin: left center; backdrop-filter: blur(18px); }
.viewport-bar, .viewport-footer { display: flex; align-items: center; border-color: var(--line); color: #7591a4; font-family: var(--font-mono); font-size: .61rem; letter-spacing: .12em; }
.viewport-bar { min-height: 42px; padding: 0 14px; border-bottom: 1px solid var(--line); }
.window-controls { display: flex; gap: 6px; margin-right: 17px; }
.window-controls span { width: 6px; height: 6px; border-radius: 50%; background: #335265; }
.viewport-title { flex: 1; }
.viewport-state { display: flex; align-items: center; gap: 6px; color: #8df3cf; }
.viewport-state i { width: 5px; height: 5px; border-radius: 50%; background: var(--green); box-shadow: 0 0 8px var(--green); }
.viewport-body { display: grid; min-height: 420px; grid-template-columns: 38px 1fr 130px; }
.viewport-toolbar { display: flex; flex-direction: column; align-items: center; gap: 11px; padding-top: 13px; border-right: 1px solid var(--line); color: #6e9cb2; font-family: var(--font-mono); }
.viewport-toolbar span { display: grid; width: 25px; height: 25px; place-items: center; border: 1px solid rgba(95, 189, 226, .13); border-radius: 5px; font-size: .72rem; }
.viewport-toolbar span:first-child { border-color: rgba(75, 220, 255, .4); background: rgba(75, 220, 255, .08); color: var(--cyan); }
.viewport-canvas { position: relative; overflow: hidden; background: radial-gradient(circle at 54% 46%, rgba(24, 121, 164, .11), transparent 35%), linear-gradient(rgba(82, 169, 205, .055) 1px, transparent 1px), linear-gradient(90deg, rgba(82, 169, 205, .055) 1px, transparent 1px); background-size: auto, 24px 24px, 24px 24px; }
.axis { position: absolute; top: 50%; left: 50%; opacity: .25; }
.axis-x { width: 72%; height: 1px; background: linear-gradient(90deg, transparent, var(--cyan), transparent); transform: translate(-50%, -50%) rotate(-28deg); }
.axis-y { width: 1px; height: 72%; background: linear-gradient(transparent, #698cff, transparent); transform: translate(-50%, -50%); }
.world-wireframe { position: absolute; inset: 8% 3% 0; width: 94%; height: 90%; overflow: visible; }
.world-wireframe path, .world-wireframe circle { fill: none; stroke: rgba(93, 213, 255, .22); stroke-width: 1; vector-effect: non-scaling-stroke; }
.world-wireframe .core-object path { stroke: rgba(99, 224, 255, .78); stroke-width: 1.35; filter: drop-shadow(0 0 5px rgba(75, 220, 255, .25)); }
.world-wireframe .connection-lines path { stroke-dasharray: 4 6; stroke: rgba(93, 213, 255, .38); }
.world-wireframe .nodes circle { fill: var(--cyan); stroke: #d1f9ff; filter: drop-shadow(0 0 7px var(--cyan)); }
.orbit { position: absolute; top: 45%; left: 50%; border: 1px solid rgba(75, 220, 255, .16); border-radius: 50%; transform: translate(-50%, -50%) rotateX(62deg); }
.orbit-a { width: 190px; height: 190px; }
.orbit-b { width: 245px; height: 245px; border-style: dashed; animation: orbit-spin 22s linear infinite; }
.coordinate { position: absolute; padding: 2px 5px; background: rgba(4, 12, 20, .75); color: #5b859b; font-family: var(--font-mono); font-size: .52rem; }
.coord-one { top: 15%; left: 12%; }.coord-two { top: 64%; right: 12%; }.coord-three { bottom: 8%; left: 30%; }
.viewport-panel { padding: 12px 9px; border-left: 1px solid var(--line); background: rgba(7, 18, 29, .78); color: #7993a4; font-size: .62rem; }
.panel-label { display: block; margin: 0 4px 10px; color: #527389; font-family: var(--font-mono); font-size: .53rem; letter-spacing: .13em; }
.tree-row { display: flex; align-items: center; gap: 6px; min-height: 25px; padding: 3px 6px; border-radius: 4px; }
.tree-row i { width: 5px; height: 5px; border: 1px solid #568da7; transform: rotate(45deg); }
.tree-row.active { background: rgba(59, 189, 232, .09); color: #b8e9f8; }
.tree-row.indent { padding-left: 15px; }
.properties-label { margin-top: 22px; }
.property { display: flex; justify-content: space-between; gap: 4px; padding: 5px 4px; border-bottom: 1px solid rgba(85, 173, 207, .07); }
.property b { color: #8bb9cd; font-family: var(--font-mono); font-size: .54rem; font-weight: 400; }
.viewport-footer { justify-content: space-between; min-height: 28px; padding: 0 12px; border-top: 1px solid var(--line); font-size: .5rem; }
.floating-chip { position: absolute; display: flex; align-items: center; gap: 8px; padding: 10px 13px; border: 1px solid var(--line-strong); border-radius: 8px; background: rgba(8, 22, 35, .88); color: #9db9c8; font-family: var(--font-mono); font-size: .64rem; box-shadow: 0 14px 35px rgba(0, 0, 0, .32); backdrop-filter: blur(12px); }
.floating-chip span { display: grid; width: 23px; height: 23px; place-items: center; border-radius: 5px; background: rgba(75, 220, 255, .1); color: var(--cyan); }
.floating-chip i { width: 6px; height: 6px; border-radius: 50%; background: var(--green); box-shadow: 0 0 8px var(--green); }
.chip-top { top: 15%; right: -25px; }.chip-bottom { bottom: 12%; left: -24px; }
.hero-points span { position: absolute; top: var(--y); left: var(--x); width: 3px; height: 3px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); opacity: .5; animation: point-pulse 5s var(--delay) ease-in-out infinite; }
.scroll-cue { position: absolute; bottom: 26px; left: 50%; z-index: 3; display: flex; align-items: center; gap: 9px; transform: translateX(-50%); color: #607b8b; font-family: var(--font-mono); font-size: .61rem; letter-spacing: .15em; text-transform: uppercase; }
.scroll-cue span { display: block; width: 20px; height: 31px; border: 1px solid #31566a; border-radius: 12px; }
.scroll-cue span::after { display: block; width: 2px; height: 5px; margin: 6px auto 0; border-radius: 2px; background: var(--cyan); content: ""; animation: scroll-dot 2s ease infinite; }

.platforms-section { border-top: 1px solid rgba(76, 185, 225, .06); }
.platform-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; }
.platform-card { position: relative; display: flex; min-height: 260px; flex-direction: column; justify-content: space-between; padding: 25px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(155deg, rgba(12, 27, 43, .84), rgba(6, 14, 24, .65)); transition: transform .25s ease, border-color .25s ease, background-color .25s ease; }
.platform-card:hover { transform: translateY(-5px); border-color: rgba(83, 206, 247, .25); }
.platform-card::after { position: absolute; right: -50px; bottom: -80px; width: 150px; height: 150px; border: 1px solid rgba(73, 206, 247, .08); border-radius: 50%; content: ""; }
.platform-active { border-color: rgba(75, 220, 255, .4); background: linear-gradient(155deg, rgba(14, 48, 67, .92), rgba(6, 18, 29, .8)); box-shadow: 0 22px 60px rgba(9, 123, 166, .12), 0 0 0 1px rgba(75, 220, 255, .05) inset; }
.platform-icon { display: grid; width: 44px; height: 44px; place-items: center; border: 1px solid var(--line); border-radius: 10px; background: rgba(74, 203, 245, .05); color: #7093a6; font-family: var(--font-mono); font-size: 1.4rem; }
.windows-icon { grid-template-columns: 1fr 1fr; gap: 2px; padding: 10px; border-color: rgba(75, 220, 255, .3); }
.windows-icon span { width: 10px; height: 10px; background: var(--cyan); box-shadow: 0 0 8px rgba(75, 220, 255, .25); }
.card-kicker { color: #607d8f; font-family: var(--font-mono); font-size: .62rem; letter-spacing: .1em; text-transform: uppercase; }
.platform-card h3 { margin: 4px 0 0; font-size: 1.45rem; }.platform-card p { margin: 2px 0 0; color: var(--muted); font-size: .88rem; }
.status-badge { align-self: flex-start; padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; color: #7591a2; font-size: .69rem; font-weight: 650; }
.status-badge.available { display: flex; align-items: center; gap: 7px; border-color: rgba(88, 240, 179, .25); background: rgba(88, 240, 179, .055); color: #a4f5d1; }
.status-badge.available i { width: 5px; height: 5px; border-radius: 50%; background: var(--green); }

.workflow-section { overflow: hidden; background: linear-gradient(180deg, transparent, rgba(7, 18, 29, .7), transparent); }
.workflow-grid { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 60px 0 0; padding: 0; list-style: none; }
.workflow-grid::before { position: absolute; top: 57px; right: 12%; left: 12%; height: 1px; background: linear-gradient(90deg, transparent, rgba(75, 220, 255, .28), transparent); content: ""; }
.workflow-step { position: relative; padding: 0 25px; text-align: center; }
.step-number { position: absolute; top: 0; right: 20px; color: #355363; font-family: var(--font-mono); font-size: .61rem; }
.step-icon { position: relative; z-index: 1; display: grid; width: 64px; height: 64px; margin: 25px auto; place-items: center; border: 1px solid var(--line-strong); border-radius: 50%; background: #07121e; color: var(--cyan); font-family: var(--font-mono); font-size: 1.35rem; box-shadow: 0 0 0 9px #050b13, 0 0 34px rgba(75, 220, 255, .08); }
.workflow-step h3 { margin: 0; font-size: 1.25rem; }.workflow-step p { margin: 11px 0 0; color: var(--muted); font-size: .9rem; }

.ecosystem-section { border-block: 1px solid rgba(83, 192, 232, .07); }
.ecosystem-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 80px; align-items: start; }
.ecosystem-layout .section-heading { position: sticky; top: 130px; }
.development-badge { display: inline-flex; margin-top: 28px; padding: 7px 12px; border: 1px solid rgba(75, 220, 255, .2); border-radius: 99px; background: rgba(75, 220, 255, .045); color: var(--cyan-bright); font-size: .72rem; }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.feature-card { min-height: 220px; padding: 24px; border: 1px solid var(--line); border-radius: 15px; background: linear-gradient(145deg, rgba(12, 26, 41, .82), rgba(7, 15, 26, .72)); transition: border-color .22s ease, transform .22s ease; }
.feature-card:hover { transform: translateY(-3px); border-color: rgba(75, 220, 255, .27); }
.feature-primary { background: linear-gradient(145deg, rgba(16, 55, 73, .8), rgba(6, 19, 31, .8)); }
.feature-symbol { display: grid; width: 38px; height: 38px; place-items: center; margin-bottom: 30px; border: 1px solid rgba(75, 220, 255, .25); border-radius: 8px; background: rgba(75, 220, 255, .06); color: var(--cyan); font-family: var(--font-mono); font-size: .72rem; }
.feature-card h3 { margin: 0; font-size: 1.08rem; }.feature-card p { min-height: 49px; margin: 9px 0 20px; color: var(--muted); font-size: .86rem; line-height: 1.55; }.feature-card > span { color: #638296; font-family: var(--font-mono); font-size: .59rem; letter-spacing: .08em; text-transform: uppercase; }

.requirements-section { overflow: hidden; }
.release-summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: -18px 0 34px; }
.release-data-card { position: relative; padding: 18px 20px; overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: rgba(8, 24, 37, .7); }
.release-data-card::after { position: absolute; top: 0; right: 0; width: 54px; height: 1px; background: var(--cyan); content: ""; box-shadow: 0 0 12px var(--cyan); }
.release-data-card > span { display: block; margin-bottom: 4px; color: var(--muted); font-size: .71rem; letter-spacing: .06em; text-transform: uppercase; }
.release-data-card strong { color: var(--cyan-bright); font-family: var(--font-mono); font-size: 1.05rem; font-weight: 550; }
.compatibility-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; align-items: stretch; }
.compatibility-card { position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(155deg, rgba(12, 27, 43, .88), rgba(6, 14, 24, .76)); }
.compatibility-card::before { position: absolute; inset: 0 0 auto; height: 2px; background: #cfad4c; content: ""; opacity: .8; }
.compatibility-card.tier-recommended { border-color: rgba(88, 240, 179, .28); box-shadow: 0 22px 55px rgba(18, 133, 99, .08); }
.compatibility-card.tier-recommended::before { background: var(--green); box-shadow: 0 0 15px rgba(88, 240, 179, .45); }
.compatibility-card.tier-large::before { background: var(--cyan); box-shadow: 0 0 15px rgba(75, 220, 255, .4); }
.compatibility-card header { min-height: 150px; padding: 24px; border-bottom: 1px solid var(--line); background: rgba(17, 42, 60, .2); }
.tier-code { display: block; margin-bottom: 6px; color: #5d7d90; font-family: var(--font-mono); font-size: .62rem; letter-spacing: .13em; }
.compatibility-card h3 { margin: 0 0 18px; font-family: var(--font-display); font-size: 1.35rem; letter-spacing: -.02em; }
.estimate-badge { display: inline-flex; align-items: center; gap: 7px; padding: 6px 9px; border: 1px solid currentColor; border-radius: 99px; font-size: .66rem; line-height: 1.25; opacity: .86; }
.estimate-badge i, .profile-signal i { width: 6px; height: 6px; flex: 0 0 auto; border-radius: 50%; background: currentColor; box-shadow: 0 0 8px currentColor; }
.estimate-yellow { color: #e6c96c; background: rgba(216, 181, 65, .045); }.estimate-green { color: #86edbe; background: rgba(88, 240, 179, .045); }.estimate-cyan { color: var(--cyan-bright); background: rgba(75, 220, 255, .045); }
.spec-list { margin: 0; padding: 12px 24px 20px; list-style: none; }
.spec-list li { display: grid; gap: 3px; padding: 12px 0; border-bottom: 1px solid rgba(91, 179, 216, .075); }
.spec-list li:last-child { border: 0; }
.spec-list span { color: #607f91; font-family: var(--font-mono); font-size: .61rem; letter-spacing: .07em; text-transform: uppercase; }
.spec-list strong { color: var(--muted-strong); font-size: .83rem; font-weight: 540; line-height: 1.48; }
.estimate-notice { display: flex; gap: 17px; align-items: flex-start; margin-top: 18px; padding: 20px 22px; border: 1px solid rgba(230, 201, 108, .25); border-radius: 13px; background: linear-gradient(90deg, rgba(230, 201, 108, .07), rgba(8, 20, 32, .4)); }
.notice-symbol { display: grid; width: 29px; height: 29px; flex: 0 0 auto; place-items: center; border: 1px solid #d6ba62; border-radius: 50%; color: #efd77e; font-family: var(--font-mono); font-size: .76rem; }
.estimate-notice p { margin: 1px 0 0; color: #9fb1bb; font-size: .86rem; }.estimate-notice strong { color: #e8d99f; font-weight: 650; }
.pc-check { margin-top: 54px; padding: 30px; border: 1px solid var(--line); border-radius: 19px; background: radial-gradient(circle at 90% 10%, rgba(33, 156, 201, .08), transparent 30%), rgba(7, 17, 28, .72); }
.pc-check-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 25px; }
.pc-check-heading .section-index { margin-bottom: 5px; }.pc-check-heading h3 { margin: 0; font-family: var(--font-display); font-size: 1.8rem; letter-spacing: -.035em; }.pc-check-heading p { max-width: 390px; margin: 0; color: var(--muted); font-size: .82rem; text-align: right; }
.pc-check-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.pc-profile { padding: 19px; border: 1px solid rgba(86, 181, 218, .1); border-radius: 12px; background: rgba(12, 27, 42, .55); }
.profile-signal { display: inline-flex; align-items: center; gap: 7px; margin-bottom: 15px; font-family: var(--font-mono); font-size: .62rem; letter-spacing: .06em; text-transform: uppercase; }
.signal-yellow { color: #e4c55f; }.signal-green { color: #72e6ad; }
.pc-profile h4 { margin: 0; color: #d8e9f3; font-size: .94rem; line-height: 1.42; }.pc-profile p { margin: 9px 0 0; color: var(--muted); font-size: .8rem; line-height: 1.55; }

.security-section { padding-top: 30px; }
.security-panel { position: relative; display: grid; grid-template-columns: 120px 1.15fr .85fr; gap: 45px; align-items: center; padding: 45px; overflow: hidden; border: 1px solid var(--line-strong); border-radius: 22px; background: linear-gradient(120deg, rgba(12, 40, 57, .82), rgba(7, 18, 30, .82)); box-shadow: 0 30px 75px rgba(0, 0, 0, .2); }
.security-panel::after { position: absolute; top: -170px; right: -110px; width: 370px; height: 370px; border: 1px solid rgba(75, 220, 255, .08); border-radius: 50%; content: ""; }
.security-orbit { display: grid; width: 104px; height: 104px; place-items: center; border: 1px solid rgba(75, 220, 255, .18); border-radius: 50%; }
.security-orbit::before, .security-orbit::after { position: absolute; border: 1px solid rgba(75, 220, 255, .16); border-radius: 50%; content: ""; }
.security-orbit::before { width: 74px; height: 74px; }.security-orbit::after { width: 42px; height: 42px; }
.security-orbit span { width: 9px; height: 9px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 18px var(--cyan); }
.security-copy h2 { font-size: clamp(1.8rem, 3vw, 2.7rem); }.security-copy p { margin: 15px 0 0; color: var(--muted); }
.security-points { position: relative; z-index: 1; display: grid; gap: 10px; }
.security-points span { display: flex; align-items: center; gap: 11px; min-height: 46px; padding: 8px 13px; border: 1px solid rgba(75, 220, 255, .1); border-radius: 8px; background: rgba(4, 13, 22, .45); color: var(--muted-strong); font-size: .8rem; }
.security-points i { color: var(--cyan); font-family: var(--font-mono); font-size: .62rem; font-style: normal; }

.download-section { padding: 150px 0; overflow: hidden; text-align: center; }
.download-panel { position: relative; z-index: 2; }
.download-mark { display: grid; width: 77px; height: 77px; margin: 0 auto 28px; place-items: center; border: 1px solid var(--line-strong); border-radius: 18px; background: rgba(19, 58, 77, .5); box-shadow: 0 0 45px rgba(75, 220, 255, .12); }
.download-mark svg { width: 43px; }.download-mark path { fill: none; stroke: var(--cyan); stroke-width: 2.1; stroke-linejoin: round; }.download-mark circle { fill: var(--cyan-bright); }
.download-panel h2 { font-size: clamp(2.8rem, 7vw, 5.5rem); }.download-panel > p { margin: 20px 0 30px; color: var(--muted); font-size: 1.05rem; }
.button-large { min-height: 59px; padding-inline: 28px; }
.download-meta { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 12px; margin-top: 22px; color: #708b9c; font-size: .72rem; }
.download-meta b { color: #9bb6c5; font-weight: 600; }
.download-meta i { width: 3px; height: 3px; border-radius: 50%; background: #416174; }
.download-glow { position: absolute; top: 50%; left: 50%; width: 45rem; height: 28rem; border-radius: 50%; background: rgba(25, 157, 211, .1); filter: blur(110px); transform: translate(-50%, -50%); }

.faq-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 80px; align-items: start; }
.faq-layout .section-heading { position: sticky; top: 125px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; min-height: 76px; align-items: center; justify-content: space-between; gap: 20px; padding: 18px 2px; color: var(--muted-strong); font-size: 1rem; font-weight: 600; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { position: relative; flex: 0 0 auto; width: 22px; height: 22px; border: 1px solid var(--line); border-radius: 50%; }
.faq-list summary span::before, .faq-list summary span::after { position: absolute; top: 50%; left: 50%; width: 8px; height: 1px; background: var(--cyan); content: ""; transform: translate(-50%, -50%); transition: transform .2s ease; }
.faq-list summary span::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq-list details[open] summary { color: var(--text); }.faq-list details[open] summary span::after { transform: translate(-50%, -50%) rotate(0); }
.faq-list details p { margin: -5px 50px 24px 2px; color: var(--muted); font-size: .91rem; }

.site-footer { padding: 48px 0; border-top: 1px solid var(--line); background: #03070d; }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 26px; align-items: center; }
.footer-brand { margin-bottom: 8px; }.footer-grid > div > p, .copyright { margin: 0; color: #647d8d; font-size: .74rem; }.footer-links { display: flex; gap: 24px; color: var(--muted); font-size: .8rem; }.footer-links a:hover { color: var(--cyan); }.copyright { grid-column: 1 / -1; padding-top: 22px; border-top: 1px solid rgba(71, 158, 192, .08); }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .65s ease, transform .65s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@keyframes orbit-spin { to { transform: translate(-50%, -50%) rotateX(62deg) rotateZ(360deg); } }
@keyframes point-pulse { 0%, 100% { opacity: .18; transform: scale(.7); } 50% { opacity: .75; transform: scale(1.5); } }
@keyframes scroll-dot { 0% { opacity: 0; transform: translateY(0); } 40% { opacity: 1; } 100% { opacity: 0; transform: translateY(10px); } }

@media (max-width: 1050px) {
    .hero { min-height: auto; padding-top: 128px; }
    .hero-layout { grid-template-columns: 1fr; }
    .hero-copy { max-width: 760px; }
    .hero-visual { width: min(720px, 94%); margin: 0 auto; }
    .platform-grid { grid-template-columns: repeat(2, 1fr); }
    .ecosystem-layout, .faq-layout { grid-template-columns: 1fr; gap: 45px; }
    .ecosystem-layout .section-heading, .faq-layout .section-heading { position: static; }
    .security-panel { grid-template-columns: 90px 1fr; }
    .security-points { grid-column: 1 / -1; grid-template-columns: repeat(3, 1fr); }
    .compatibility-grid { grid-template-columns: 1fr; }
    .compatibility-card header { min-height: 0; }
}

@media (max-width: 760px) {
    :root { --shell: min(100% - 32px, 680px); }
    .section { padding: 88px 0; }
    .nav-shell { min-height: 66px; }
    .menu-toggle { display: block; }
    .menu-toggle[aria-expanded="true"] > span:nth-child(2) { transform: translateY(6px) rotate(45deg); }
    .menu-toggle[aria-expanded="true"] > span:nth-child(3) { opacity: 0; }
    .menu-toggle[aria-expanded="true"] > span:nth-child(4) { transform: translateY(-6px) rotate(-45deg); }
    .primary-nav { position: absolute; top: 66px; right: 16px; left: 16px; display: grid; gap: 2px; padding: 14px; visibility: hidden; border: 1px solid var(--line); border-radius: 13px; background: rgba(5, 13, 22, .97); opacity: 0; transform: translateY(-8px); box-shadow: 0 20px 45px rgba(0, 0, 0, .4); transition: opacity .2s ease, transform .2s ease, visibility .2s; }
    .primary-nav.is-open { visibility: visible; opacity: 1; transform: none; }
    .primary-nav a { padding: 11px 12px; }.primary-nav .nav-download { margin-top: 6px; text-align: center; }
    .hero { min-height: auto; padding: 116px 0 80px; }
    .hero-wordmark { font-size: clamp(3.5rem, 18vw, 5.4rem); }
    .hero-actions { align-items: stretch; flex-direction: column; }.button { width: 100%; }
    .release-strip { align-items: flex-start; flex-direction: column; gap: 7px; }.release-divider { display: none; }
    .viewport-body { min-height: 340px; grid-template-columns: 32px 1fr; }.viewport-panel { display: none; }.viewport-toolbar { font-size: .6rem; }
    .floating-chip { display: none; }.viewport-window { transform: none; }.scroll-cue { display: none; }
    .platform-grid, .feature-grid, .release-summary, .pc-check-grid { grid-template-columns: 1fr; }
    .platform-card { min-height: 225px; }
    .workflow-grid { grid-template-columns: 1fr; gap: 20px; }.workflow-grid::before { top: 20px; bottom: 20px; left: 31px; width: 1px; height: auto; }.workflow-step { display: grid; grid-template-columns: 64px 1fr; column-gap: 22px; padding: 0; text-align: left; }.step-icon { grid-row: 1 / 4; margin: 0; }.workflow-step h3 { align-self: end; }.workflow-step p { margin-top: 4px; }.step-number { display: none; }
    .feature-card { min-height: 195px; }.feature-card p { min-height: 0; }
    .release-summary { margin-top: -12px; }.pc-check { padding: 23px; }.pc-check-heading { align-items: flex-start; flex-direction: column; gap: 8px; }.pc-check-heading p { text-align: left; }.estimate-notice { padding: 17px; }
    .security-panel { grid-template-columns: 1fr; gap: 25px; padding: 30px; }.security-orbit { width: 76px; height: 76px; }.security-orbit::before { width: 54px; height: 54px; }.security-orbit::after { width: 30px; height: 30px; }.security-points { grid-column: auto; grid-template-columns: 1fr; }
    .download-section { padding: 105px 0; }.download-meta i { display: none; }.download-meta { align-items: center; flex-direction: column; gap: 5px; }
    .footer-grid { grid-template-columns: 1fr; }.footer-links { flex-wrap: wrap; }.copyright { grid-column: auto; }
}

@media (max-width: 420px) {
    .brand { font-size: .82rem; }.brand-mark { width: 28px; height: 28px; }
    .hero-wordmark { font-size: 3.15rem; }.hero h1 > span:last-child { font-size: 1.85rem; }
    .viewport-body { min-height: 285px; }.viewport-footer span:nth-child(2) { display: none; }
    .section-heading h2 { font-size: 2.25rem; }
}

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