/* ==========================================================================
   Никита Комишан — портфолио v2
   Dark tech / precision engineering. Без фреймворков, без захвата скролла.
   ========================================================================== */

/* ---------- Fonts (self-hosted, variable, cyrillic + latin) ---------- */
@font-face {
    font-family: 'Manrope';
    font-style: normal;
    font-display: swap;
    font-weight: 200 800;
    src: url(fonts/manrope-cyrillic-wght-normal.woff2) format('woff2-variations'), url(fonts/manrope-cyrillic-wght-normal.woff2) format('woff2');
    unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
    font-family: 'Manrope';
    font-style: normal;
    font-display: swap;
    font-weight: 200 800;
    src: url(fonts/manrope-latin-wght-normal.woff2) format('woff2-variations'), url(fonts/manrope-latin-wght-normal.woff2) format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
    font-family: 'JetBrains Mono';
    font-style: normal;
    font-display: swap;
    font-weight: 100 800;
    src: url(fonts/jetbrains-mono-cyrillic-wght-normal.woff2) format('woff2-variations'), url(fonts/jetbrains-mono-cyrillic-wght-normal.woff2) format('woff2');
    unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
    font-family: 'JetBrains Mono';
    font-style: normal;
    font-display: swap;
    font-weight: 100 800;
    src: url(fonts/jetbrains-mono-latin-wght-normal.woff2) format('woff2-variations'), url(fonts/jetbrains-mono-latin-wght-normal.woff2) format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* Metric-matched fallback keeps layout stable while the webfont swaps in */
@font-face {
    font-family: 'Manrope Fallback';
    src: local('Arial'), local('Helvetica Neue'), local('Helvetica');
    size-adjust: 104%;
    ascent-override: 102%;
    descent-override: 29%;
    line-gap-override: 0%;
}

/* ---------- Tokens ---------- */
:root {
    --bg: #050507;
    --bg-2: #08080c;
    --surface: #0c0c12;
    --surface-2: #111119;
    --line: rgba(255, 255, 255, 0.08);
    --line-2: rgba(255, 255, 255, 0.14);
    --line-3: rgba(255, 255, 255, 0.24);

    --text: #f4f4f2;
    --text-2: #c9c9d3;
    --muted: #a0a0b0;
    --dim: #82828f;

    --accent: #6c5cff;
    --accent-2: #8f84ff;
    --accent-text: #aaa1ff;
    --accent-soft: rgba(108, 92, 255, 0.12);
    --cyan: #7ee7ff;
    --green: #3ddc97;
    --amber: #e9b95f;
    --red: #f07178;

    --font: 'Manrope', 'Manrope Fallback', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

    --container: 1240px;
    --pad: clamp(20px, 4vw, 48px);
    --header-h: 68px;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-xs: 5px;

    --ease: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

html {
    background: var(--bg);
    color: var(--text);
    color-scheme: dark;
    font-family: var(--font);
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-padding-top: calc(var(--header-h) + 12px);
}
@media (prefers-reduced-motion: no-preference) {
    html { scroll-behavior: smooth; }
}

body {
    min-height: 100vh;
    background:
        radial-gradient(1200px 700px at 85% -10%, rgba(108, 92, 255, 0.10), transparent 60%),
        var(--bg);
    font-size: 1rem;
    line-height: 1.6;
    overflow-x: clip;
    text-rendering: optimizeLegibility;
}

img, svg, canvas { display: block; max-width: 100%; }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input { font: inherit; color: inherit; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.15; letter-spacing: -0.02em; text-wrap: balance; }
p { text-wrap: pretty; }
code, kbd, pre { font-family: var(--mono); }
code { font-size: 0.88em; color: var(--accent-text); }
strong, b { font-weight: 700; }

::selection { background: rgba(108, 92, 255, 0.45); color: #fff; }

:focus-visible {
    outline: 2px solid var(--accent-2);
    outline-offset: 3px;
    border-radius: 4px;
}

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.sprite symbol, .ico, .card-ico, .an-ico svg, .tg-ico svg, .tg-arrow, .tech-ico-plain svg {
    fill: none;
    stroke: currentColor;
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.ico { width: 18px; height: 18px; flex: none; }

.sr-only {
    position: absolute !important;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: fixed;
    top: 12px; left: 12px;
    z-index: 200;
    padding: 12px 18px;
    background: var(--text);
    color: var(--bg);
    font-weight: 700;
    border-radius: var(--radius-sm);
    transform: translateY(-160%);
    transition: transform 0.2s var(--ease);
}
.skip-link:focus { transform: none; }

main:focus, [tabindex="-1"]:focus { outline: none; }
html.menu-open { overflow: hidden; }

.toast {
    position: fixed;
    left: 50%;
    bottom: calc(24px + env(safe-area-inset-bottom));
    z-index: 120;
    max-width: calc(100% - 32px);
    padding: 12px 18px;
    border-radius: 10px;
    background: var(--text);
    color: #0a0a10;
    font-size: 0.9rem;
    font-weight: 650;
    box-shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.8);
    opacity: 0;
    visibility: hidden;
    transform: translate(-50%, 16px);
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
    pointer-events: none;
}
.toast.is-on { opacity: 1; visibility: visible; transform: translate(-50%, 0); }

.container {
    width: 100%;
    max-width: calc(var(--container) + var(--pad) * 2);
    margin-inline: auto;
    padding-inline: var(--pad);
}

.mono-label {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
}

/* ---------- Buttons & links ---------- */
.btn {
    --h: 50px;
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: var(--h);
    padding: 0 22px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    font-size: 0.95rem;
    font-weight: 650;
    letter-spacing: -0.005em;
    white-space: nowrap;
    transition: background-color 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease), box-shadow 0.35s var(--ease), transform 0.25s var(--ease);
}
.btn .ico { transition: transform 0.3s var(--ease); }
.btn:hover .ico { transform: translate(2px, -2px); }
.btn:hover .ico-down { transform: translateY(3px); }
.btn:active { transform: translateY(1px); }
.btn-sm { --h: 40px; padding: 0 16px; font-size: 0.875rem; }
.btn-lg { --h: 56px; padding: 0 26px; font-size: 1rem; }
.btn-block { width: 100%; }

.btn-primary {
    background: var(--text);
    color: #0a0a10;
}
.btn-primary:hover {
    background: #fff;
    box-shadow: 0 0 0 4px rgba(108, 92, 255, 0.28), 0 18px 40px -18px rgba(108, 92, 255, 0.8);
}
.btn-ghost {
    border-color: var(--line-3);
    color: var(--text);
    background: rgba(255, 255, 255, 0.02);
}
.btn-ghost:hover {
    border-color: var(--accent-2);
    background: var(--accent-soft);
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-2);
    font-weight: 600;
    border-bottom: 1px solid var(--line-2);
    padding-bottom: 2px;
    transition: color 0.2s, border-color 0.2s;
}
.text-link:hover { color: var(--text); border-color: var(--accent-2); }
.text-link .ico { width: 15px; height: 15px; }

/* ---------- Badges ---------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 5px 10px 5px 9px;
    border: 1px solid currentColor;
    border-radius: 999px;
    font-family: var(--mono);
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    line-height: 1.2;
    white-space: nowrap;
}
.badge::before {
    content: '';
    width: 6px; height: 6px;
    border-radius: 50%;
    background: currentColor;
    flex: none;
}
.b-prod { color: var(--green); border-color: rgba(61, 220, 151, 0.35); background: rgba(61, 220, 151, 0.07); }
.b-impl { color: var(--accent-text); border-color: rgba(170, 161, 255, 0.35); background: var(--accent-soft); }
.b-test { color: var(--cyan); border-color: rgba(126, 231, 255, 0.32); background: rgba(126, 231, 255, 0.06); }
.b-plan, .b-dev { color: var(--amber); border-color: rgba(233, 185, 95, 0.35); background: rgba(233, 185, 95, 0.07); }
/* ---------- Cards ---------- */
.card {
    position: relative;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.028), rgba(255, 255, 255, 0.008));
    border: 1px solid var(--line);
    border-radius: var(--radius);
    transition: border-color 0.3s var(--ease), background-color 0.3s var(--ease), transform 0.4s var(--ease);
}
.spot { isolation: isolate; overflow: hidden; }
.spot::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: -1;
    background: radial-gradient(380px circle at var(--mx, 50%) var(--my, -20%), rgba(108, 92, 255, 0.16), transparent 65%);
    opacity: 0;
    transition: opacity 0.35s var(--ease);
    pointer-events: none;
}
@media (hover: hover) {
    .spot:hover::before { opacity: 1; }
    .card.spot:hover { border-color: var(--line-2); }
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 60;
    height: var(--header-h);
    border-bottom: 1px solid transparent;
    transition: background-color 0.3s var(--ease), border-color 0.3s var(--ease), backdrop-filter 0.3s;
}
.site-header.is-scrolled {
    background: rgba(5, 5, 7, 0.78);
    border-bottom-color: var(--line);
    -webkit-backdrop-filter: saturate(140%) blur(14px);
    backdrop-filter: saturate(140%) blur(14px);
}
.header-inner {
    height: 100%;
    max-width: calc(var(--container) + var(--pad) * 2);
    margin: 0 auto;
    padding: 0 var(--pad);
    display: flex;
    align-items: center;
    gap: 24px;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-right: auto;
    border-radius: 6px;
}
.brand-mark {
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.04em;
}
.brand-dot { color: var(--accent-2); }
.brand-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-2);
    padding-left: 12px;
    border-left: 1px solid var(--line-2);
}

.main-nav ul { display: flex; gap: 4px; }
.main-nav a {
    position: relative;
    display: block;
    padding: 8px 12px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-2);
    border-radius: 6px;
    transition: color 0.2s, background-color 0.2s;
}
.main-nav a:hover { color: var(--text); background: rgba(255, 255, 255, 0.04); }
.main-nav a[aria-current="true"] { color: var(--text); }
.main-nav a[aria-current="true"]::after {
    content: '';
    position: absolute;
    left: 12px; right: 12px; bottom: 2px;
    height: 2px;
    border-radius: 2px;
    background: var(--accent-2);
}

.header-actions { display: flex; align-items: center; gap: 10px; }
.cmdk-trigger {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 40px;
    padding: 0 10px 0 12px;
    border: 1px solid var(--line-2);
    border-radius: var(--radius-sm);
    color: var(--muted);
    transition: border-color 0.2s, color 0.2s;
}
.cmdk-trigger:hover { color: var(--text); border-color: var(--line-3); }
.cmdk-trigger .ico { width: 16px; height: 16px; }
.cmdk-trigger kbd {
    font-size: 0.68rem;
    padding: 3px 6px;
    border: 1px solid var(--line-2);
    border-radius: 4px;
    color: var(--muted);
}
.menu-btn {
    display: none;
    width: 44px; height: 44px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line-2);
    border-radius: var(--radius-sm);
}
.menu-btn .ico { width: 22px; height: 22px; }

.scroll-progress {
    position: absolute;
    left: 0; right: 0; bottom: -1px;
    height: 2px;
    pointer-events: none;
}
.scroll-progress span {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--cyan));
    transform-origin: 0 50%;
    transform: scaleX(0);
}

/* ---------- Mobile menu (dialog) ---------- */
.mobile-menu {
    position: fixed;
    inset: 0;
    width: 100%;
    max-width: none;
    height: 100%;
    max-height: none;
    margin: 0;
    padding: 0;
    border: 0;
    background: var(--bg);
    color: var(--text);
}
.mobile-menu::backdrop { background: transparent; }
.mobile-menu[open] { animation: fade-in 0.25s var(--ease); }
.mm-inner {
    min-height: 100%;
    display: flex;
    flex-direction: column;
    padding: 16px var(--pad) calc(24px + env(safe-area-inset-bottom));
}
.mm-top { display: flex; align-items: center; justify-content: space-between; height: 52px; }
.icon-btn {
    width: 44px; height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line-2);
    border-radius: var(--radius-sm);
}
.icon-btn .ico { width: 20px; height: 20px; }
.mm-links { margin: 28px 0 auto; }
.mm-links a {
    display: flex;
    align-items: baseline;
    gap: 16px;
    padding: 14px 0;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    border-bottom: 1px solid var(--line);
}
.mm-links a span { font-family: var(--mono); font-size: 0.75rem; color: var(--accent-text); letter-spacing: 0.08em; }
.mm-links a[aria-current="true"] { color: var(--accent-text); }
.mm-bottom { display: grid; gap: 10px; margin-top: 32px; }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
    position: relative;
    isolation: isolate;
    min-height: 100vh;
    min-height: 100svh;
    display: flex;
    align-items: center;
    padding: calc(var(--header-h) + 32px) 0 40px;
    overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.hero-glow {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(640px 480px at 74% 42%, rgba(108, 92, 255, 0.20), transparent 70%),
        radial-gradient(420px 320px at 88% 70%, rgba(126, 231, 255, 0.07), transparent 70%);
}
.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
    background-size: 64px 64px;
    background-position: center top;
    -webkit-mask-image: radial-gradient(ellipse 70% 65% at 70% 40%, #000 15%, transparent 75%);
    mask-image: radial-gradient(ellipse 70% 65% at 70% 40%, #000 15%, transparent 75%);
}
.hero-fallback {
    position: absolute;
    top: 50%;
    right: -4%;
    width: min(62vw, 880px);
    transform: translateY(-48%);
    opacity: 0.75;
    transition: opacity 1.2s var(--ease);
}
.hero-net { width: 100%; height: auto; overflow: visible; }
.hn-lines { stroke: rgba(143, 132, 255, 0.38); stroke-width: 1; }
.hn-dots { stroke: rgba(225, 222, 255, 0.95); stroke-width: 3.2; stroke-linecap: round; }
.hn-hubs circle { fill: var(--cyan); filter: drop-shadow(0 0 6px rgba(126, 231, 255, 0.8)); }
@media (prefers-reduced-motion: no-preference) {
    .hero-net { animation: net-float 14s var(--ease-in-out) infinite alternate; }
    .hn-hubs circle { animation: hub-pulse 3.2s ease-in-out infinite; transform-box: fill-box; transform-origin: center; }
    .hn-hubs circle:nth-child(2) { animation-delay: -0.8s; }
    .hn-hubs circle:nth-child(3) { animation-delay: -1.6s; }
    .hn-hubs circle:nth-child(4) { animation-delay: -2.4s; }
}
.hero-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1.4s var(--ease);
}
.hero.has-webgl .hero-canvas { opacity: 1; }
.hero.has-webgl .hero-fallback { opacity: 0; }

.hero-inner { position: relative; }
.hero-top {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px 24px;
    margin-bottom: clamp(26px, 3.2vw, 36px);
}
.hero-kicker {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px 12px;
    font-family: var(--mono);
    font-size: 0.8rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-2);
}
.hk-name { color: var(--text); font-weight: 600; }
.hk-sep { color: var(--accent-2); }
.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 7px 14px;
    border: 1px solid rgba(61, 220, 151, 0.3);
    border-radius: 999px;
    background: rgba(61, 220, 151, 0.06);
    font-size: 0.8rem;
    font-weight: 600;
    color: #b9f3d8;
}
.status-dot {
    position: relative;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--green);
}
@media (prefers-reduced-motion: no-preference) {
    .status-dot::after {
        content: '';
        position: absolute;
        inset: -4px;
        border-radius: 50%;
        border: 1px solid var(--green);
        animation: ping 2.4s var(--ease) infinite;
    }
}

.hero-title {
    max-width: 980px;
    font-size: clamp(2.45rem, 5.8vw, 5rem);
    font-weight: 750;
    line-height: 1.0;
    letter-spacing: -0.045em;
}
.grad {
    background: linear-gradient(100deg, #fff 0%, #cfc9ff 35%, var(--accent-2) 70%, var(--cyan) 110%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero-caps {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: clamp(22px, 2.6vw, 30px);
    max-width: 920px;
}
.hero-caps li {
    padding: 7px 13px;
    border: 1px solid var(--line-2);
    border-radius: 999px;
    background: rgba(10, 10, 16, 0.55);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-2);
}
.hero-lead {
    max-width: 640px;
    margin-top: 22px;
    font-size: clamp(1.02rem, 1.35vw, 1.2rem);
    line-height: 1.6;
    color: var(--text-2);
}
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 14px;
    margin-top: clamp(28px, 4vw, 40px);
}
.hero-profi { margin-left: 10px; }

.hero-proof {
    margin-top: clamp(36px, 4.6vw, 60px);
    padding-top: 22px;
    border-top: 1px solid var(--line-2);
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 20px 48px;
}
.hp-caption {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 14px;
    max-width: 420px;
    font-size: 0.9rem;
    color: var(--text-2);
}
.hp-metrics { display: flex; gap: clamp(20px, 3.4vw, 52px); }
.hp-metrics div { display: flex; flex-direction: column-reverse; justify-content: flex-end; }
.hp-metrics dd {
    font-size: clamp(1.7rem, 2.8vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.05;
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}
.hp-metrics dt {
    margin-top: 6px;
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
    max-width: 16ch;
    line-height: 1.4;
}

/* Hero entrance: pure CSS so the first paint never waits for JS */
@media (prefers-reduced-motion: no-preference) {
    .hero-anim {
        animation: rise 0.9s var(--ease) both;
        animation-delay: calc(var(--d, 0) * 70ms + 40ms);
    }
    /* The headline is the LCP element: Chrome ignores text first painted at opacity 0, so it only slides */
    .hero-title.hero-anim { animation-name: rise-solid; animation-delay: 0ms; }
}

/* ---------- Ticker ---------- */
.ticker {
    position: relative;
    overflow: hidden;
    border-block: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.012);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
    mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.ticker-track {
    display: flex;
    align-items: center;
    gap: 28px;
    width: max-content;
    padding: 18px 0;
    font-family: var(--mono);
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-2);
    white-space: nowrap;
}
.ticker-track i { width: 6px; height: 6px; background: var(--accent); transform: rotate(45deg); flex: none; }
@media (prefers-reduced-motion: no-preference) {
    .ticker-track { animation: marquee 60s linear infinite; }
    .ticker:hover .ticker-track { animation-play-state: paused; }
}

/* ==========================================================================
   Sections
   ========================================================================== */
.section {
    position: relative;
    padding-block: clamp(84px, 11vw, 148px);
}
.section + .section { border-top: 1px solid var(--line); }

.section-head {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: end;
    gap: 24px 64px;
    margin-bottom: clamp(44px, 6vw, 76px);
}
.eyebrow {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
    font-family: var(--mono);
    font-size: 0.75rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent-text);
}
.eyebrow .idx {
    padding: 3px 7px;
    border: 1px solid rgba(170, 161, 255, 0.35);
    border-radius: 4px;
    color: var(--text);
    letter-spacing: 0.06em;
}
.section-title {
    font-size: clamp(2.1rem, 4.8vw, 3.75rem);
    line-height: 1.03;
    letter-spacing: -0.04em;
    max-width: 16ch;
}
.section-lead {
    font-size: clamp(1rem, 1.25vw, 1.125rem);
    color: var(--text-2);
    max-width: 56ch;
}
.sub-title {
    font-family: var(--mono);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 22px;
    display: flex;
    align-items: center;
    gap: 14px;
}
.sub-title::after { content: ''; flex: 1; height: 1px; background: var(--line); }

/* Scroll reveal (only hides elements that start below the fold, see script.js) */
.rv-pending {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.8s var(--ease), transform 0.9s var(--ease);
    transition-delay: var(--rv-delay, 0ms);
}
.rv-pending.is-in { opacity: 1; transform: none; }

/* ---------- Services ---------- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}
.service { padding: clamp(24px, 2.4vw, 32px); display: flex; flex-direction: column; gap: 14px; }
.card-ico {
    width: 44px; height: 44px;
    padding: 10px;
    border: 1px solid rgba(170, 161, 255, 0.28);
    border-radius: 10px;
    background: var(--accent-soft);
    color: var(--accent-text);
    margin-bottom: 6px;
}
.service h3 { font-size: 1.2rem; letter-spacing: -0.02em; }
.service p { color: var(--text-2); font-size: 0.95rem; }
.service .pain {
    color: var(--muted);
    font-size: 0.9rem;
    padding-left: 12px;
    border-left: 2px solid rgba(240, 113, 120, 0.45);
}
.service .pain span {
    display: block;
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #f4a3a8;
    margin-bottom: 2px;
}

/* ==========================================================================
   CRM case
   ========================================================================== */
.crm { background: linear-gradient(180deg, var(--bg-2), var(--bg) 40%); overflow: hidden; }
.crm-glow {
    position: absolute;
    inset: 0 0 auto;
    height: 900px;
    background: radial-gradient(800px 500px at 20% 0%, rgba(108, 92, 255, 0.13), transparent 70%);
    pointer-events: none;
}
.crm .container { position: relative; }

.case-head {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: 32px 56px;
    align-items: start;
}
.case-title {
    font-size: clamp(2.1rem, 4.6vw, 3.6rem);
    line-height: 1.04;
    letter-spacing: -0.04em;
    max-width: 18ch;
}
.case-lead {
    margin-top: 24px;
    font-size: clamp(1rem, 1.25vw, 1.125rem);
    color: var(--text-2);
    max-width: 62ch;
}
.case-more { margin-top: 16px; max-width: 62ch; }
.case-more summary {
    width: fit-content;
    color: var(--accent-text);
    font-weight: 650;
    cursor: pointer;
}
.case-more summary:hover { color: var(--text); }
.case-more p { margin-top: 10px; color: var(--text-2); font-size: 0.98rem; }
.case-meta { padding: 8px 24px; }
.case-meta div {
    display: grid;
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 12px;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
}
.case-meta div:last-child { border-bottom: 0; }
.case-meta dt {
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
    padding-top: 3px;
}
.case-meta dd { font-size: 0.92rem; color: var(--text); }
.case-meta dd .badge { margin-right: 6px; vertical-align: 1px; }
.cm-stack dd { color: var(--text-2); font-size: 0.86rem; }

.status-legend {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-top: 36px;
    padding: 14px 18px;
    border: 1px dashed var(--line-2);
    border-radius: var(--radius-sm);
}
.status-legend .mono-label { margin-right: 6px; }

.case-block { margin-top: clamp(80px, 10vw, 128px); }
.block-head {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 20px;
    align-items: start;
    margin-bottom: clamp(28px, 4vw, 44px);
    max-width: 860px;
}
.block-idx {
    display: grid;
    place-items: center;
    width: 44px; height: 44px;
    border: 1px solid rgba(170, 161, 255, 0.35);
    border-radius: 10px;
    font-family: var(--mono);
    font-weight: 600;
    color: var(--accent-text);
    background: var(--accent-soft);
}
.block-title { font-size: clamp(1.5rem, 2.6vw, 2.15rem); letter-spacing: -0.03em; line-height: 1.1; }
.block-lead { margin-top: 10px; color: var(--text-2); max-width: 62ch; }

/* ---------- A. Flow ---------- */
.flow {
    border: 1px solid var(--line-2);
    border-radius: calc(var(--radius) + 4px);
    background: rgba(9, 9, 14, 0.7);
    overflow: hidden;
}
.flow-rail-wrap {
    position: relative;
    display: flex;
    align-items: stretch;
    border-bottom: 1px solid var(--line);
}
.flow-rail {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
}
.flow-tab {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 20px 18px 18px;
    text-align: left;
    color: var(--muted);
    border-right: 1px solid var(--line);
    transition: color 0.25s, background-color 0.25s;
}
.flow-tab:last-child { border-right: 0; }
.flow-tab:hover { color: var(--text); background: rgba(255, 255, 255, 0.02); }
.flow-tab[aria-selected="true"] { color: var(--text); background: rgba(108, 92, 255, 0.07); }
.flow-tab:focus-visible { outline-offset: -3px; }
.ft-num { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em; color: var(--accent-text); }
.ft-name { font-size: 0.95rem; font-weight: 650; line-height: 1.25; }
.ft-bar {
    position: absolute;
    left: 0; right: 0; top: 0;
    height: 2px;
    background: var(--line);
    overflow: hidden;
}
.ft-bar::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, var(--accent), var(--cyan));
    transform-origin: 0 50%;
    transform: scaleX(0);
}
.flow-tab.is-done .ft-bar::after { transform: scaleX(1); opacity: 0.45; }
.flow-tab[aria-selected="true"] .ft-bar::after { transform: scaleX(1); opacity: 1; }
.flow.is-autoplay .flow-tab[aria-selected="true"] .ft-bar::after {
    animation: bar-fill var(--flow-dur, 7s) linear both;
}
.flow.is-autoplay.is-paused .flow-tab[aria-selected="true"] .ft-bar::after { animation-play-state: paused; }

.flow-toggle {
    flex: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0 18px;
    border-left: 1px solid var(--line);
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
}
.flow-toggle:hover { color: var(--text); }
.flow-toggle .ico { width: 14px; height: 14px; }
.flow-toggle .ico-play { display: none; }
.flow-toggle[aria-pressed="true"] .ico-play { display: block; }
.flow-toggle[aria-pressed="true"] .ico-pause { display: none; }

.flow-panels { position: relative; }
/* With JS all panels share one grid cell, so switching steps never shifts the page */
.flow.is-stacked .flow-panels, .arch.is-stacked .arch-panels { display: grid; }
.flow.is-stacked .flow-panel, .arch.is-stacked .arch-panel { grid-area: 1 / 1; }
.flow.is-stacked .flow-panel[hidden], .arch.is-stacked .arch-panel[hidden] { display: grid; visibility: hidden; pointer-events: none; }
.arch.is-stacked .arch-panel { align-content: start; }
.flow-panel {
    display: grid;
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 32px 48px;
    align-items: center;
    padding: clamp(24px, 3.4vw, 44px);
}
.flow-panel:focus-visible { outline-offset: -4px; }
.js .flow-panel[hidden] { display: none; }
.flow-panel:not([hidden]) ~ .flow-panel:not([hidden]) { border-top: 1px solid var(--line); }
.fp-step {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
}
.fp-text h4 { margin-top: 14px; font-size: clamp(1.6rem, 2.6vw, 2.1rem); letter-spacing: -0.03em; }
.fp-text > p:not(.fp-step):not(.fp-links) { margin-top: 14px; color: var(--text-2); }
.fp-links {
    margin-top: 22px;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.02);
    font-family: var(--mono);
    font-size: 0.78rem;
    line-height: 1.6;
    color: var(--text-2);
}
.fp-links span {
    display: block;
    font-size: 0.66rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent-text);
    margin-bottom: 4px;
}

/* Mock window — stylised UI with fictional data */
.mock {
    border: 1px solid var(--line-2);
    border-radius: 12px;
    background: linear-gradient(180deg, #0e0e16, #0a0a10);
    box-shadow: 0 40px 80px -40px rgba(108, 92, 255, 0.45), 0 0 0 1px rgba(0, 0, 0, 0.6);
    overflow: hidden;
    font-size: 0.85rem;
}
.mock-bar {
    display: flex;
    align-items: center;
    gap: 7px;
    height: 38px;
    padding: 0 14px;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.02);
}
.mock-bar i { width: 9px; height: 9px; border-radius: 50%; background: rgba(255, 255, 255, 0.14); }
.mock-bar span { margin-left: 8px; font-family: var(--mono); font-size: 0.7rem; color: var(--muted); letter-spacing: 0.04em; }
.mock-bar em {
    margin-left: auto;
    font-style: normal;
    font-family: var(--mono);
    font-size: 0.62rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--amber);
    border: 1px solid rgba(233, 185, 95, 0.35);
    border-radius: 4px;
    padding: 2px 6px;
}
.mock-body { padding: 18px; min-height: 300px; display: grid; gap: 14px; align-content: start; }
.mock .ok, .mock .run, .mock .warn, .mock .tip { position: relative; padding-left: 22px; }
.mock .ok::before, .mock .run::before, .mock .warn::before, .mock .tip::before {
    content: '';
    position: absolute;
    left: 2px; top: 0.45em;
    width: 10px; height: 10px;
    border-radius: 3px;
}
.mock .ok::before { background: var(--green); box-shadow: 0 0 10px rgba(61, 220, 151, 0.5); }
.mock .run::before { background: var(--accent-2); }
.mock .warn::before { background: var(--amber); }
.mock .tip::before { background: var(--cyan); }

/* stagger children in on panel switch */
@media (prefers-reduced-motion: no-preference) {
    .flow-panel.is-entering .mock-body > * { animation: rise-sm 0.6s var(--ease) both; }
    .flow-panel.is-entering .mock-body > *:nth-child(2) { animation-delay: 0.08s; }
    .flow-panel.is-entering .mock-body > *:nth-child(3) { animation-delay: 0.16s; }
    .flow-panel.is-entering .mock-body > *:nth-child(4) { animation-delay: 0.24s; }
    .flow-panel.is-entering .fp-text > * { animation: rise-sm 0.6s var(--ease) both; }
    .flow-panel.is-entering .fp-text > *:nth-child(2) { animation-delay: 0.05s; }
    .flow-panel.is-entering .fp-text > *:nth-child(3) { animation-delay: 0.1s; }
    .flow-panel.is-entering .fp-text > *:nth-child(4) { animation-delay: 0.15s; }
}

.mk-sources { display: flex; flex-wrap: wrap; gap: 6px; }
.mk-sources span {
    font-family: var(--mono);
    font-size: 0.68rem;
    padding: 4px 8px;
    border: 1px dashed var(--line-3);
    border-radius: 4px;
    color: var(--muted);
}
.mk-obj { display: grid; grid-template-columns: 116px 1fr; gap: 14px; padding: 12px; border: 1px solid var(--line); border-radius: 10px; background: rgba(255, 255, 255, 0.02); }
.mk-photo {
    position: relative;
    aspect-ratio: 4 / 3;
    border-radius: 7px;
    background:
        linear-gradient(135deg, rgba(108, 92, 255, 0.35), rgba(126, 231, 255, 0.18)),
        repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.05) 0 6px, transparent 6px 12px);
    overflow: hidden;
}
.mk-wm {
    position: absolute;
    inset: auto 6px 6px;
    font-family: var(--mono);
    font-size: 0.58rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: line-through;
    text-decoration-color: var(--green);
}
.mk-obj-body { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.mk-obj-body b { font-size: 0.95rem; }
.mk-obj-body span { color: var(--muted); font-size: 0.8rem; }
.mk-obj-body .mk-price { color: var(--text); font-weight: 700; margin-top: auto; }
.mk-checks { display: grid; gap: 8px; color: var(--text-2); font-size: 0.82rem; }

.mk-inbox { grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); }
.mk-threads { display: grid; gap: 6px; align-content: start; }
.mk-threads li { display: grid; gap: 1px; padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px; }
.mk-threads li.is-active { border-color: rgba(170, 161, 255, 0.45); background: var(--accent-soft); }
.mk-threads .src { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent-text); }
.mk-threads b { font-size: 0.82rem; }
.mk-threads small { font-size: 0.74rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mk-chat { display: flex; flex-direction: column; gap: 6px; }
.mk-chat p { max-width: 88%; padding: 7px 10px; border-radius: 10px; font-size: 0.8rem; line-height: 1.4; }
.mk-chat .in { background: rgba(255, 255, 255, 0.06); border-bottom-left-radius: 3px; }
.mk-chat .out { align-self: flex-end; background: linear-gradient(135deg, rgba(108, 92, 255, 0.55), rgba(108, 92, 255, 0.3)); border-bottom-right-radius: 3px; }
.mk-chat .sys {
    align-self: center;
    max-width: none;
    padding: 3px 8px;
    font-family: var(--mono);
    font-size: 0.64rem;
    color: var(--cyan);
    border: 1px dashed rgba(126, 231, 255, 0.35);
    border-radius: 999px;
}

.mk-call { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; }
.mk-callcard {
    display: grid;
    gap: 8px;
    padding: 16px;
    border-radius: 12px;
    border: 1px solid rgba(61, 220, 151, 0.35);
    background: linear-gradient(160deg, rgba(61, 220, 151, 0.12), rgba(61, 220, 151, 0.02));
}
.mk-call-head { display: flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.06em; text-transform: uppercase; color: #b9f3d8; }
.mk-ring { position: relative; width: 9px; height: 9px; border-radius: 50%; background: var(--green); }
@media (prefers-reduced-motion: no-preference) {
    .mk-ring::after { content: ''; position: absolute; inset: -5px; border-radius: 50%; border: 1px solid var(--green); animation: ping 1.6s var(--ease) infinite; }
}
.mk-num { font-family: var(--mono); font-size: 1.05rem; letter-spacing: 0.02em; }
.mk-callcard p { font-size: 0.8rem; color: var(--text-2); }
.mk-call-meta { display: flex; justify-content: space-between; gap: 8px; font-family: var(--mono); font-size: 0.68rem !important; color: var(--muted) !important; }
.mk-call-meta .rec { color: var(--red); }
.mk-call-meta .rec::before { content: '● '; }
.mk-script { padding: 14px; border: 1px solid var(--line); border-radius: 12px; }
.mk-script-title { font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; }
.mk-graph { display: flex; flex-direction: column; align-items: flex-start; gap: 0; }
.g-node { padding: 5px 9px; border: 1px solid var(--line-2); border-radius: 6px; font-size: 0.74rem; color: var(--text-2); background: rgba(255, 255, 255, 0.02); }
.g-node.is-done { border-color: rgba(61, 220, 151, 0.4); color: #b9f3d8; }
.g-node.is-now { border-color: var(--accent-2); color: var(--text); background: var(--accent-soft); box-shadow: 0 0 0 3px rgba(108, 92, 255, 0.15); }
.g-edge { width: 1px; height: 12px; margin-left: 16px; background: var(--line-3); }
.g-split { display: flex; gap: 6px; }

.mk-pipe { display: flex; flex-wrap: wrap; gap: 6px; counter-reset: pipe; }
.mk-pipe li {
    position: relative;
    padding: 5px 9px;
    border: 1px solid var(--line-2);
    border-radius: 6px;
    font-family: var(--mono);
    font-size: 0.66rem;
    color: var(--muted);
}
.mk-pipe li.done { color: #b9f3d8; border-color: rgba(61, 220, 151, 0.35); }
.mk-pipe li.now { color: var(--text); border-color: var(--accent-2); background: var(--accent-soft); }
.mk-transcript { display: grid; gap: 4px; padding: 12px; border-left: 2px solid var(--line-3); font-size: 0.8rem; color: var(--text-2); }
.mk-transcript b { color: var(--text); font-weight: 650; }
.mk-feedback { padding: 14px; border: 1px solid rgba(170, 161, 255, 0.3); border-radius: 10px; background: var(--accent-soft); }
.mk-fb-title { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 0.85rem; margin-bottom: 8px; }
.mk-fb-title .ico { width: 16px; height: 16px; color: var(--accent-text); }
.mk-feedback ul { display: grid; gap: 6px; font-size: 0.8rem; color: var(--text-2); }
.mk-queue { font-family: var(--mono); font-size: 0.66rem; color: var(--muted); }

.mk-kanban { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.mk-kanban .col { display: grid; gap: 6px; align-content: start; padding: 8px; border-radius: 8px; background: rgba(255, 255, 255, 0.025); min-height: 92px; }
.mk-kanban .col > p { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.kc { padding: 7px 8px; border: 1px solid var(--line); border-radius: 6px; font-size: 0.74rem; background: #0e0e16; }
.kc.is-active { border-color: var(--accent-2); box-shadow: 0 0 0 3px rgba(108, 92, 255, 0.15); }
.mk-dealcard { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.mk-dealcard div { padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px; }
.mk-dealcard dt { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.mk-dealcard dd { font-size: 0.85rem; font-weight: 650; }
.mk-note { font-family: var(--mono); font-size: 0.7rem; color: var(--cyan); }

.mk-doc { grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); align-items: start; }
.mk-paper { display: grid; gap: 8px; padding: 16px; border-radius: 10px; background: #e9e9ef; color: #16161d; }
.mk-doc-title { font-weight: 800; font-size: 0.82rem; }
.mk-paper .ln { height: 6px; border-radius: 3px; background: rgba(22, 22, 29, 0.14); }
.mk-paper .ln.short { width: 60%; }
.mk-signs { display: grid; gap: 6px; margin-top: 6px; font-size: 0.74rem; font-weight: 600; }
.mk-paper .ok::before { box-shadow: none; background: #17a86b; }
.mk-pay { display: grid; gap: 6px; padding: 16px; border-radius: 10px; border: 1px solid rgba(61, 220, 151, 0.35); background: rgba(61, 220, 151, 0.06); }
.mk-pay-head { display: flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.mk-pay-head .ico { width: 15px; height: 15px; }
.mk-pay b { font-size: 1.3rem; color: var(--green); letter-spacing: -0.02em; }
.mk-pay p:last-child { font-size: 0.78rem; color: var(--text-2); }

/* ---------- B. Architecture map ---------- */
.arch {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 32px clamp(32px, 4vw, 64px);
    align-items: center;
}
.arch-map {
    --r: 39%;
    position: relative;
    width: 100%;
    max-width: 640px;
    aspect-ratio: 1;
    margin-inline: auto;
}
.arch-rings span {
    position: absolute;
    top: 50%; left: 50%;
    border: 1px solid var(--line);
    border-radius: 50%;
    transform: translate(-50%, -50%);
}
.arch-rings span:nth-child(1) { width: 78%; height: 78%; border-style: dashed; border-color: rgba(255, 255, 255, 0.07); }
.arch-rings span:nth-child(2) { width: 46%; height: 46%; }
.arch-rings span:nth-child(3) { width: 28%; height: 28%; border-color: rgba(170, 161, 255, 0.25); }
@media (prefers-reduced-motion: no-preference) {
    .arch-rings span:nth-child(1) { animation: spin 90s linear infinite; }
}

.arch-spokes span {
    --a: calc(-90deg + var(--i) * 30deg);
    position: absolute;
    left: 50%; top: 50%;
    width: var(--r);
    height: 1px;
    transform-origin: 0 50%;
    transform: rotate(var(--a)) scaleX(var(--draw, 1));
    background: linear-gradient(90deg, rgba(170, 161, 255, 0.05), rgba(170, 161, 255, 0.28));
    transition: background 0.3s, transform 0.9s var(--ease);
    transition-delay: calc(var(--i) * 35ms);
    overflow: hidden;
}
.arch-spokes span::after {
    content: '';
    position: absolute;
    inset: -1px 0;
    background: linear-gradient(90deg, transparent 78%, var(--cyan) 100%);
    transform: translateX(-100%);
    opacity: 0;
}
.arch-spokes span.is-active, .arch-spokes span.is-related, .arch-spokes span.is-hover {
    background: linear-gradient(90deg, rgba(170, 161, 255, 0.2), rgba(170, 161, 255, 0.85));
    height: 2px;
}
.arch-spokes span.is-related { background: linear-gradient(90deg, rgba(126, 231, 255, 0.12), rgba(126, 231, 255, 0.6)); }
@media (prefers-reduced-motion: no-preference) {
    /* Active spoke carries a pulse into the core; related spokes carry one back out */
    .arch-spokes span.is-active::after { opacity: 1; animation: spoke-in 1.8s var(--ease-in-out) infinite; }
    .arch-spokes span.is-related::after { opacity: 1; animation: spoke-pulse 1.8s var(--ease-in-out) infinite; animation-delay: 0.45s; }
    .arch.is-pending .arch-spokes span { --draw: 0; }
    .arch.is-pending .arch-node { opacity: 0; transform: translate(-50%, -50%) scale(0.85); }
    .arch.is-pending .arch-core { opacity: 0; transform: translate(-50%, -50%) scale(0.85); }
}

.arch-core {
    position: absolute;
    top: 50%; left: 50%;
    z-index: 2;
    width: 34%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    pointer-events: none;
    transition: opacity 0.6s var(--ease), transform 0.8s var(--ease);
}
.core-kicker {
    font-family: var(--mono);
    font-size: 0.62rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    text-align: center;
    color: var(--accent-text);
}
.core-stack {
    margin: 0;
    padding: 0;
    list-style: none;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(170, 161, 255, 0.5);
    background: rgba(8, 8, 14, 0.94);
    box-shadow: 0 0 50px rgba(108, 92, 255, 0.32), inset 0 0 24px rgba(108, 92, 255, 0.14);
}
.core-layer {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 8px 12px 8px 14px;
    overflow: hidden;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(255, 255, 255, 0.02);
    transition: background-color 0.3s;
}
.core-layer:first-child { border-top: 0; }
.cl-name { font-weight: 750; font-size: 0.84rem; letter-spacing: -0.02em; }
.cl-sub { font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.02em; color: var(--muted); white-space: nowrap; }
.core-layer.is-hot { background: linear-gradient(90deg, rgba(108, 92, 255, 0.42), rgba(108, 92, 255, 0.1)); }
.core-layer.is-hot .cl-name { color: #fff; }
.core-layer.is-hot .cl-sub { color: var(--cyan); }
.core-layer.is-hot::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 2px;
    background: var(--cyan);
}
@media (prefers-reduced-motion: no-preference) {
    .core-layer.is-hot::after {
        content: '';
        position: absolute;
        top: 0; bottom: 0;
        width: 36%;
        background: linear-gradient(90deg, transparent, rgba(126, 231, 255, 0.45), transparent);
        animation: layer-scan 1.6s linear infinite;
    }
}
.core-link {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-content: center;
    gap: 5px;
    min-height: 2.6em;
    font-size: 0.68rem;
    line-height: 1.35;
    text-align: center;
    color: var(--text-2);
}
.core-link-layer { color: var(--cyan); }
/* On the radial map the highlight and spokes already say which layer is active; the sentence is for phones and screen readers */
@media (min-width: 761px) {
    .core-link {
        position: absolute;
        width: 1px; height: 1px;
        margin: -1px; padding: 0;
        min-height: 0;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
    }
}

.arch-node {
    --a: calc(-90deg + var(--i) * 30deg);
    position: absolute;
    left: calc(50% + cos(var(--a)) * var(--r));
    top: calc(50% + sin(var(--a)) * var(--r));
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    width: 116px;
    padding: 4px;
    border-radius: 10px;
    text-align: center;
    transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
    transition-delay: calc(var(--i) * 40ms + 150ms);
}
.an-ico {
    display: grid;
    place-items: center;
    width: 46px; height: 46px;
    border-radius: 50%;
    border: 1px solid var(--line-2);
    background: #0d0d15;
    color: var(--text-2);
    transition: border-color 0.25s, background-color 0.25s, color 0.25s, box-shadow 0.3s, transform 0.3s var(--ease);
}
.an-ico svg { width: 20px; height: 20px; }
.an-label {
    font-size: 0.74rem;
    font-weight: 650;
    line-height: 1.25;
    color: var(--text-2);
    transition: color 0.2s;
    hyphens: manual;
}
.arch-node:hover .an-ico { border-color: var(--accent-2); color: var(--text); transform: scale(1.06); }
.arch-node:hover .an-label { color: var(--text); }
.arch-node.is-related .an-ico, .arch-node.is-hover-rel .an-ico { border-color: rgba(126, 231, 255, 0.6); color: var(--cyan); }
.arch-node[aria-selected="true"] .an-ico {
    border-color: var(--accent-2);
    background: linear-gradient(160deg, var(--accent), #4b3fd6);
    color: #fff;
    box-shadow: 0 0 0 5px rgba(108, 92, 255, 0.18), 0 0 30px rgba(108, 92, 255, 0.55);
}
.arch-node[aria-selected="true"] .an-label { color: var(--text); }
.arch-node:focus-visible { outline-offset: 2px; }

.arch-panels { padding: clamp(24px, 3vw, 36px); min-height: 340px; }
.js .arch-panel[hidden] { display: none; }
.arch-panel:not([hidden]) ~ .arch-panel:not([hidden]) { margin-top: 28px; padding-top: 28px; border-top: 1px solid var(--line); }
.arch-panel { display: grid; gap: 16px; }
.ap-idx { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent-text); }
.arch-panel h4 { font-size: clamp(1.5rem, 2.4vw, 2rem); letter-spacing: -0.03em; }
.ap-plain { color: var(--text); font-size: 1.05rem; }
.ap-tech { color: var(--text-2); font-size: 0.92rem; }
.ap-tech::before {
    content: 'Технически';
    display: block;
    margin-bottom: 6px;
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
}
.badges { display: flex; flex-wrap: wrap; gap: 8px; }
.badges .badge { white-space: normal; text-align: left; }
.ap-rel {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    padding-top: 16px;
    border-top: 1px solid var(--line);
}
.ap-rel span { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-right: 4px; }
.ap-rel button {
    padding: 6px 11px;
    border: 1px solid rgba(126, 231, 255, 0.3);
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    color: #c6f4ff;
    transition: background-color 0.2s, border-color 0.2s;
}
.ap-rel button:hover { background: rgba(126, 231, 255, 0.08); border-color: rgba(126, 231, 255, 0.6); }
@media (prefers-reduced-motion: no-preference) {
    .arch-panel.is-entering > * { animation: rise-sm 0.5s var(--ease) both; }
    .arch-panel.is-entering > *:nth-child(2) { animation-delay: 0.04s; }
    .arch-panel.is-entering > *:nth-child(3) { animation-delay: 0.08s; }
    .arch-panel.is-entering > *:nth-child(4) { animation-delay: 0.12s; }
    .arch-panel.is-entering > *:nth-child(5) { animation-delay: 0.16s; }
}

/* ---------- C. Engineering ---------- */
.eng-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.eng { padding: clamp(22px, 2.4vw, 30px); display: flex; flex-direction: column; gap: 12px; }
.eng-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.eng-idx { font-family: var(--mono); font-size: 0.8rem; color: var(--accent-text); }
.eng-tag {
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    padding: 4px 8px;
    border: 1px solid var(--line-2);
    border-radius: 4px;
}
.eng h4 { font-size: 1.2rem; letter-spacing: -0.02em; }
.eng > p:not(.eng-top):not(.eng-flow) { color: var(--text-2); font-size: 0.95rem; }
.eng-flow {
    margin-top: auto;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid var(--line);
    overflow-x: auto;
}
.eng-flow code { font-size: 0.75rem; color: var(--cyan); white-space: nowrap; }

/* ---------- D. Scale ---------- */
.scale-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
}
.scale-item {
    display: flex;
    flex-direction: column-reverse;
    justify-content: flex-end;
    gap: 10px;
    padding: clamp(22px, 2.6vw, 34px);
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.012);
}
.scale-item:nth-child(4n) { border-right: 0; }
.scale-item:nth-last-child(-n + 4) { border-bottom: 0; }
.scale-item dd {
    font-size: clamp(2.2rem, 4vw, 3.4rem);
    font-weight: 750;
    letter-spacing: -0.045em;
    line-height: 1;
    font-variant-numeric: tabular-nums;
    background: linear-gradient(180deg, #fff, #b9b3ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.scale-item dt { font-size: 0.88rem; color: var(--text-2); line-height: 1.45; max-width: 26ch; }

/* ---------- E. Integrations ---------- */
.integ-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    border-top: 1px solid var(--line);
}
.integ-grid li {
    padding: 22px 24px 22px 0;
    border-bottom: 1px solid var(--line);
}
.integ-grid li:not(:nth-child(3n + 1)) { padding-left: 24px; border-left: 1px solid var(--line); }
.integ-grid h4 { font-family: var(--mono); font-size: 0.7rem; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent-text); margin-bottom: 8px; }
.integ-grid p { color: var(--text); font-size: 0.95rem; }
.integ-grid a { border-bottom: 1px solid rgba(170, 161, 255, 0.5); }
.integ-grid a:hover { color: var(--accent-text); }

.case-cta {
    margin-top: clamp(64px, 8vw, 96px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px 40px;
    padding: clamp(26px, 3.4vw, 44px);
    background:
        radial-gradient(600px 220px at 0% 0%, rgba(108, 92, 255, 0.2), transparent 70%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
    border-color: rgba(170, 161, 255, 0.25);
}
.case-cta h3 { font-size: clamp(1.4rem, 2.4vw, 1.9rem); letter-spacing: -0.03em; }
.case-cta p { margin-top: 8px; color: var(--text-2); max-width: 56ch; }

/* ==========================================================================
   Projects
   ========================================================================== */
.systems { margin-bottom: clamp(64px, 8vw, 96px); }
.systems-list { border-top: 1px solid var(--line); }
.systems-list li {
    display: grid;
    grid-template-columns: 28px minmax(0, 0.9fr) minmax(0, 1.3fr) minmax(0, 0.8fr);
    align-items: center;
    gap: 8px 24px;
    padding: 18px 4px;
    border-bottom: 1px solid var(--line);
    transition: background-color 0.25s;
}
.systems-list li:hover { background: rgba(255, 255, 255, 0.018); }
.systems-list .ico { width: 22px; height: 22px; color: var(--accent-text); }
.sl-type { font-weight: 700; font-size: 1.02rem; }
.sl-what { color: var(--text-2); font-size: 0.92rem; }
.sl-ex { justify-self: end; text-align: right; font-size: 0.88rem; font-weight: 600; color: var(--text-2); }
.sl-ex a, a.sl-ex { border-bottom: 1px solid var(--line-3); transition: color 0.2s, border-color 0.2s; }
.sl-ex a:hover, a.sl-ex:hover { color: var(--text); border-color: var(--accent-2); }

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: clamp(64px, 8vw, 96px);
}
.project { display: flex; flex-direction: column; }
.pj-visual {
    position: relative;
    height: 200px;
    border-bottom: 1px solid var(--line);
    background:
        radial-gradient(400px 160px at 50% 0%, rgba(108, 92, 255, 0.12), transparent 70%),
        repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.025) 0 1px, transparent 1px 32px),
        rgba(0, 0, 0, 0.25);
    display: grid;
    place-items: center;
    padding: 20px;
    overflow: hidden;
}
.pj-body { padding: clamp(22px, 2.4vw, 30px); display: flex; flex-direction: column; gap: 10px; flex: 1; }
.pj-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.pj-cat { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.pj-name { font-size: 1.6rem; letter-spacing: -0.03em; margin-top: 4px; }
.pj-tagline { font-weight: 650; color: var(--text); }
.pj-body > p:not(.pj-meta):not(.pj-tagline) { color: var(--text-2); font-size: 0.95rem; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 8px; }
.tags li {
    font-family: var(--mono);
    font-size: 0.7rem;
    padding: 4px 8px;
    border: 1px solid var(--line-2);
    border-radius: 4px;
    color: var(--text-2);
}
.pj-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 16px clamp(22px, 2.4vw, 30px);
    border-top: 1px solid var(--line);
    font-family: var(--mono);
    font-size: 0.82rem;
    color: var(--text);
    transition: background-color 0.25s, color 0.25s;
}
a.pj-link:hover { background: var(--accent-soft); color: var(--accent-text); }
a.pj-link:hover .ico { transform: translate(2px, -2px); }
.pj-link .ico { transition: transform 0.3s var(--ease); }
.pj-link.is-muted { color: var(--muted); }

/* project visuals */
.pv-svg { width: 100%; max-width: 460px; height: auto; overflow: visible; }
.pv-wire path { fill: none; stroke: rgba(255, 255, 255, 0.12); stroke-width: 1.5; }
.pv-flow path { fill: none; stroke: var(--cyan); stroke-width: 2; stroke-dasharray: 14 86; stroke-dashoffset: 100; opacity: 0.9; }
@media (prefers-reduced-motion: no-preference) {
    .pv-flow path { animation: dash-flow 2.4s linear infinite; animation-delay: var(--d, 0s); }
}
@media (prefers-reduced-motion: reduce) {
    .pv-flow { display: none; }
}
.pv-box rect { fill: #0e0e16; stroke: var(--line-3); stroke-width: 1; rx: 4; }
.pv-box text { fill: var(--text-2); font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-anchor: middle; }
.pv-hub rect { fill: rgba(108, 92, 255, 0.2); stroke: var(--accent-2); }
.pv-hub text { fill: #fff; font-weight: 600; }

.pv-tydy { grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); gap: 14px; align-items: center; }
.td-chat { display: grid; gap: 6px; }
.td-chat p { padding: 6px 9px; border-radius: 9px 9px 9px 3px; background: rgba(255, 255, 255, 0.06); font-size: 0.72rem; line-height: 1.35; color: var(--text-2); }
.td-chat b { display: block; font-family: var(--mono); font-size: 0.56rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent-text); font-weight: 500; }
.td-arrow span {
    display: grid;
    place-items: center;
    width: 40px; height: 40px;
    border-radius: 50%;
    border: 1px solid var(--accent-2);
    background: var(--accent-soft);
    font-family: var(--mono);
    font-size: 0.7rem;
    color: #fff;
    box-shadow: 0 0 24px rgba(108, 92, 255, 0.4);
}
.td-task { display: grid; gap: 6px; padding: 12px; border: 1px solid rgba(170, 161, 255, 0.4); border-radius: 10px; background: #0e0e16; }
.td-k { font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--green); }
.td-task b { font-size: 0.8rem; line-height: 1.3; }
.td-m { font-family: var(--mono); font-size: 0.6rem; color: var(--muted); }

.pv-servercon { display: grid; gap: 14px; place-items: stretch; align-content: center; }
.sc-rows { display: grid; gap: 9px; }
.sc-rows p { display: grid; grid-template-columns: 84px 1fr 64px; align-items: center; gap: 10px; font-size: 0.74rem; }
.sc-rows b { font-family: var(--mono); font-weight: 500; color: var(--text-2); }
.sc-rows em { font-style: normal; font-family: var(--mono); font-size: 0.62rem; color: var(--green); text-align: right; }
.sc-bar { position: relative; height: 6px; border-radius: 3px; background: rgba(255, 255, 255, 0.06); overflow: hidden; }
.sc-bar::after { content: ''; position: absolute; inset: 0 auto 0 0; width: var(--w); border-radius: 3px; background: linear-gradient(90deg, var(--accent), var(--cyan)); }
@media (prefers-reduced-motion: no-preference) {
    .sc-bar::after { animation: bar-breathe 3.6s var(--ease-in-out) infinite alternate; }
    .sc-rows p:nth-child(2) .sc-bar::after { animation-delay: -1.2s; }
    .sc-rows p:nth-child(3) .sc-bar::after { animation-delay: -2.4s; }
}
.sc-api { justify-self: start; font-family: var(--mono); font-size: 0.68rem; padding: 5px 9px; border: 1px dashed var(--line-3); border-radius: 4px; color: var(--cyan); }

.pv-messenger { grid-template-columns: minmax(0, 1.2fr) auto minmax(0, 0.8fr); gap: 14px; align-items: center; }
.ms-channels, .ms-out { display: grid; gap: 7px; }
.ms-channels li { display: grid; padding: 7px 10px; border: 1px dashed var(--line-3); border-radius: 8px; }
.ms-channels li b { font-size: 0.8rem; }
.ms-channels li span { font-family: var(--mono); font-size: 0.6rem; color: var(--amber); }
.ms-channels li.is-live { border-style: solid; border-color: rgba(61, 220, 151, 0.45); background: rgba(61, 220, 151, 0.06); }
.ms-channels li.is-live span { color: var(--green); }
.ms-hub { padding: 12px 10px; border: 1px solid var(--accent-2); border-radius: 10px; background: var(--accent-soft); font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.06em; text-transform: uppercase; text-align: center; line-height: 1.5; }
.ms-out li { padding: 7px 10px; border: 1px solid var(--line-2); border-radius: 8px; font-size: 0.74rem; color: var(--text-2); text-align: center; }

/* client registry */
.clients { margin-bottom: clamp(56px, 7vw, 84px); }
.registry { border-top: 1px solid var(--line); }
.reg-head, .reg-row {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.5fr) minmax(0, 0.85fr) 92px;
    gap: 8px 28px;
    align-items: center;
}
.reg-head {
    padding: 12px 4px;
    border-bottom: 1px solid var(--line);
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
}
.reg-row { padding: 20px 4px; border-bottom: 1px solid var(--line); transition: background-color 0.25s; }
.reg-row:hover { background: rgba(255, 255, 255, 0.018); }
.reg-name { display: grid; gap: 2px; }
.reg-name b { font-size: 1.02rem; }
.reg-name span { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.reg-desc { color: var(--text-2); font-size: 0.92rem; }
.reg-tech { font-family: var(--mono); font-size: 0.74rem; color: var(--muted); }
.reg-link {
    justify-self: end;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--text);
    padding: 6px 10px;
    border: 1px solid var(--line-2);
    border-radius: 6px;
    transition: border-color 0.2s, background-color 0.2s;
}
a.reg-link:hover { border-color: var(--accent-2); background: var(--accent-soft); }
.reg-link .ico { width: 14px; height: 14px; }
.reg-link.is-muted { border-color: transparent; color: var(--muted); }

/* ==========================================================================
   Process
   ========================================================================== */
.process {
    --p: 1;
    position: relative;
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 24px;
    margin-bottom: clamp(48px, 6vw, 72px);
}
.process-line {
    position: absolute;
    left: 7px; right: 0; top: 7px;
    height: 1px;
    background: var(--line-2);
}
.process-line span {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, var(--accent), var(--cyan));
    transform-origin: 0 50%;
    transform: scaleX(var(--p));
}
.step { position: relative; padding-top: 40px; }
.step-dot {
    position: absolute;
    top: 0; left: 0;
    width: 15px; height: 15px;
    border-radius: 50%;
    border: 1px solid var(--accent-2);
    background: var(--bg);
    box-shadow: 0 0 0 4px var(--bg);
}
.step-dot::after { content: ''; position: absolute; inset: 3px; border-radius: 50%; background: var(--accent-2); }
.step-num { font-family: var(--mono); font-size: 0.75rem; color: var(--accent-text); letter-spacing: 0.1em; }
.step h3 { margin-top: 8px; font-size: 1.15rem; letter-spacing: -0.02em; }
.step p:last-child { margin-top: 10px; color: var(--text-2); font-size: 0.93rem; }

.principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-bottom: clamp(64px, 8vw, 96px); }
.principles li { padding: 24px 26px; }
.principles h3 { font-size: 1.08rem; letter-spacing: -0.02em; }
.principles p { margin-top: 8px; color: var(--text-2); font-size: 0.93rem; }

.faq-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 32px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
    position: relative;
    list-style: none;
    padding: 20px 40px 20px 0;
    font-weight: 650;
    font-size: 1.02rem;
    cursor: pointer;
    border-radius: 4px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
    content: '';
    position: absolute;
    right: 6px; top: 50%;
    width: 10px; height: 10px;
    border-right: 1.6px solid var(--muted);
    border-bottom: 1.6px solid var(--muted);
    transform: translateY(-70%) rotate(45deg);
    transition: transform 0.3s var(--ease);
}
.faq details[open] summary::after { transform: translateY(-30%) rotate(-135deg); border-color: var(--accent-2); }
.faq summary:hover { color: var(--accent-text); }
.faq details p { padding: 0 0 22px; color: var(--text-2); font-size: 0.95rem; max-width: 60ch; }

/* ==========================================================================
   Stack
   ========================================================================== */
.stack-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.stack-col { padding: 24px; }
.stack-col h3 { font-family: var(--mono); font-size: 0.72rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent-text); margin-bottom: 14px; }
.stack-col li {
    display: grid;
    grid-template-columns: 22px minmax(0, 1fr);
    column-gap: 12px;
    padding: 11px 0;
    border-top: 1px solid var(--line);
}
.stack-col li b { font-size: 0.98rem; }
.stack-col li span:last-child { grid-column: 2; color: var(--muted); font-size: 0.82rem; line-height: 1.4; }
.tech-ico {
    grid-row: span 2;
    width: 20px; height: 20px;
    margin-top: 2px;
    background: var(--text-2);
    -webkit-mask: var(--icon) center / contain no-repeat;
    mask: var(--icon) center / contain no-repeat;
}
.tech-ico-plain { background: none; -webkit-mask: none; mask: none; color: var(--text-2); }
.tech-ico-plain svg { width: 20px; height: 20px; }
.stack-wide { grid-column: 1 / -1; }
.stack-wide .chips { display: flex; flex-wrap: wrap; gap: 8px; }
.stack-wide .chips li {
    display: block;
    padding: 8px 13px;
    border: 1px solid var(--line-2);
    border-radius: 999px;
    font-size: 0.86rem;
    font-weight: 600;
    color: var(--text-2);
}

/* ==========================================================================
   Contact
   ========================================================================== */
.contact {
    background:
        radial-gradient(900px 500px at 15% 100%, rgba(108, 92, 255, 0.14), transparent 70%),
        var(--bg);
}
.contact-title { font-size: clamp(2.4rem, 6vw, 4.6rem); max-width: 14ch; }
.contact-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); gap: 24px; align-items: start; }
.contact-main { display: grid; gap: 16px; }
.tg-card {
    position: relative;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 22px;
    padding: clamp(24px, 3vw, 36px);
    border-radius: calc(var(--radius) + 4px);
    border: 1px solid rgba(170, 161, 255, 0.4);
    background:
        radial-gradient(500px 220px at 0% 0%, rgba(108, 92, 255, 0.35), transparent 70%),
        linear-gradient(180deg, rgba(108, 92, 255, 0.14), rgba(108, 92, 255, 0.04));
    transition: border-color 0.3s, transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.tg-card:hover { border-color: var(--accent-2); box-shadow: 0 30px 70px -35px rgba(108, 92, 255, 0.8); }
.tg-ico { display: grid; place-items: center; width: 64px; height: 64px; border-radius: 16px; background: var(--text); color: #0a0a10; }
.tg-ico svg { width: 30px; height: 30px; stroke-width: 1.8; }
.tg-text { display: grid; gap: 2px; min-width: 0; }
.tg-k { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent-text); }
.tg-title { font-size: clamp(1.4rem, 2.6vw, 2.1rem); font-weight: 750; letter-spacing: -0.035em; line-height: 1.15; }
.tg-handle { font-family: var(--mono); font-size: 0.9rem; color: var(--text-2); }
.tg-arrow { width: 32px; height: 32px; transition: transform 0.35s var(--ease); }
.tg-card:hover .tg-arrow { transform: translate(4px, -4px); }

.contact-links { display: grid; gap: 10px; }
.contact-links a {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 14px;
    height: 100%;
    padding: 14px 18px;
    border: 1px solid var(--line-2);
    border-radius: var(--radius);
    transition: border-color 0.2s, background-color 0.2s;
}
.contact-links a:hover { border-color: var(--accent-2); background: var(--accent-soft); }
.contact-links .ico { color: var(--accent-text); }
.contact-links .arrow { width: 15px; height: 15px; color: var(--muted); }
.contact-links b { display: block; font-size: 0.95rem; }
.contact-links small { display: block; font-size: 0.76rem; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.brief { padding: clamp(22px, 2.6vw, 32px); }
.brief h3 { font-size: 1.2rem; letter-spacing: -0.02em; }
.brief > p { margin-top: 8px; color: var(--text-2); font-size: 0.93rem; }
.brief-text {
    margin-top: 16px;
    padding: 16px 18px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--line);
    background: rgba(0, 0, 0, 0.35);
    font-size: 0.8rem;
    line-height: 1.75;
    color: var(--text-2);
    white-space: pre-wrap;
    word-break: break-word;
}
.brief-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; margin-top: 16px; }
.brief-actions .ico-done { display: none; color: var(--green); }
.brief-actions .is-copied .ico-done { display: block; }
.brief-actions .is-copied .ico-copy { display: none; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 40px 0 calc(40px + env(safe-area-inset-bottom)); }
.footer-inner { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 24px 48px; }
.footer-brand { display: flex; align-items: center; gap: 16px; }
.footer-brand p { font-size: 0.82rem; color: var(--muted); line-height: 1.5; }
.footer-nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 20px; }
.footer-nav a { font-size: 0.86rem; color: var(--text-2); padding: 4px 0; }
.footer-nav a:hover { color: var(--text); }
.footer-note { font-size: 0.78rem; color: var(--muted); text-align: right; line-height: 1.6; }
.footer-note a { color: var(--text-2); border-bottom: 1px solid var(--line-2); }
.footer-privacy { grid-column: 1 / -1; max-width: 78ch; font-size: 0.78rem; line-height: 1.6; color: var(--muted); }

/* ==========================================================================
   Command palette
   ========================================================================== */
.cmdk {
    width: min(620px, calc(100% - 32px));
    max-height: min(560px, calc(100% - 96px));
    margin: 12vh auto auto;
    padding: 0;
    border: 1px solid var(--line-2);
    border-radius: 14px;
    background: #0c0c13;
    color: var(--text);
    box-shadow: 0 40px 100px -20px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(108, 92, 255, 0.15);
    overflow: hidden;
}
.cmdk::backdrop { background: rgba(3, 3, 6, 0.7); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }
.cmdk[open] { animation: pop-in 0.22s var(--ease); }
.cmdk-box { display: flex; flex-direction: column; max-height: inherit; }
.cmdk-input { display: flex; align-items: center; gap: 12px; padding: 0 14px 0 18px; border-bottom: 1px solid var(--line); }
.cmdk-input .ico { color: var(--muted); }
.cmdk-input input { flex: 1; height: 58px; background: none; border: 0; outline: none; font-size: 1rem; }
.cmdk-input input::placeholder { color: var(--dim); }
.cmdk-esc { font-family: var(--mono); font-size: 0.68rem; padding: 4px 8px; border: 1px solid var(--line-2); border-radius: 5px; color: var(--muted); }
.cmdk-list { overflow-y: auto; padding: 8px; overscroll-behavior: contain; }
.cmdk-list li {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 14px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
}
.cmdk-list li span { font-size: 0.8rem; font-weight: 500; color: var(--muted); text-align: right; }
.cmdk-list li[aria-selected="true"] { background: var(--accent-soft); box-shadow: inset 2px 0 0 var(--accent-2); }
.cmdk-list li[hidden] { display: none; }
.cmdk-empty { padding: 24px; text-align: center; color: var(--muted); }
.cmdk-hints { display: flex; gap: 18px; padding: 10px 18px; border-top: 1px solid var(--line); font-family: var(--mono); font-size: 0.66rem; color: var(--dim); }

/* ==========================================================================
   Keyframes
   ========================================================================== */
@keyframes rise { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: none; } }
@keyframes rise-solid { from { transform: translateY(18px); } to { transform: none; } }
@keyframes rise-sm { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes pop-in { from { opacity: 0; transform: translateY(-8px) scale(0.98); } to { opacity: 1; transform: none; } }
@keyframes marquee { to { transform: translateX(-50%); } }
@keyframes ping { 0% { transform: scale(0.6); opacity: 0.9; } 80%, 100% { transform: scale(1.8); opacity: 0; } }
@keyframes net-float { from { transform: translate3d(0, 0, 0) rotate(0deg); } to { transform: translate3d(-14px, 10px, 0) rotate(-1.2deg); } }
@keyframes hub-pulse { 0%, 100% { opacity: 0.55; transform: scale(0.85); } 50% { opacity: 1; transform: scale(1.25); } }
@keyframes spin { to { transform: translate(-50%, -50%) rotate(360deg); } }
@keyframes spoke-pulse { from { transform: translateX(-100%); } to { transform: translateX(0); } }
@keyframes spoke-in { from { transform: translateX(0); } to { transform: translateX(-100%); } }
@keyframes layer-scan { from { transform: translateX(-130%); } to { transform: translateX(380%); } }
@keyframes bar-fill { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes dash-flow { to { stroke-dashoffset: 0; } }
@keyframes bar-breathe { from { transform: scaleX(0.82); transform-origin: 0 50%; } to { transform: scaleX(1); transform-origin: 0 50%; } }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1180px) {
    .main-nav a { padding: 8px 9px; }
    .brand-name { display: none; }
    .hero-proof { grid-template-columns: 1fr; }
    .stack-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 1023px) {
    .main-nav, .cmdk-trigger { display: none; }
    .menu-btn { display: inline-flex; }
    html:not(.js) .main-nav { display: block; }

    .section-head { grid-template-columns: 1fr; align-items: start; }
    .services-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .case-head { grid-template-columns: 1fr; }

    .flow-rail { grid-template-columns: repeat(6, minmax(132px, 1fr)); }
    .flow-rail-wrap { overflow-x: auto; scrollbar-width: none; }
    .flow-rail-wrap::-webkit-scrollbar { display: none; }
    .flow-panel { grid-template-columns: 1fr; align-content: start; }

    .arch { grid-template-columns: 1fr; }
    .arch-map { max-width: 580px; }

    .scale-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .scale-item:nth-child(4n) { border-right: 1px solid var(--line); }
    .scale-item:nth-child(2n) { border-right: 0; }
    .scale-item:nth-last-child(-n + 4) { border-bottom: 1px solid var(--line); }
    .scale-item:nth-last-child(-n + 2) { border-bottom: 0; }

    .integ-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .integ-grid li:not(:nth-child(3n + 1)) { padding-left: 0; border-left: 0; }
    .integ-grid li:nth-child(2n) { padding-left: 24px; border-left: 1px solid var(--line); }

    .systems-list li { grid-template-columns: 28px minmax(0, 1fr) auto; }
    .sl-what { grid-column: 2 / -1; grid-row: 2; }
    .sl-ex { grid-column: 3; grid-row: 1; }

    .projects-grid { grid-template-columns: 1fr; }

    .reg-head { display: none; }
    .reg-row { grid-template-columns: minmax(0, 1fr) auto; }
    .reg-name { grid-column: 1; }
    .reg-link { grid-column: 2; grid-row: 1; }
    .reg-desc, .reg-tech { grid-column: 1 / -1; }

    .process { grid-template-columns: 1fr; gap: 0; }
    .process-line { left: 7px; right: auto; top: 8px; bottom: 8px; width: 1px; height: auto; }
    .process-line span { transform-origin: 50% 0; transform: scaleY(var(--p)); }
    .step { padding: 0 0 32px 44px; }
    .step:last-child { padding-bottom: 0; }

    .principles { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr; justify-items: start; }
    .footer-nav { justify-content: flex-start; }
    .footer-note { text-align: left; }
}

@media (max-width: 760px) {
    :root { --header-h: 60px; }
    .header-cta { display: none; }

    .hero { min-height: auto; padding: calc(var(--header-h) + 36px) 0 48px; }
    .hero-fallback { top: 6%; right: -40%; width: 120vw; transform: none; opacity: 0.45; }
    .hero-grid { -webkit-mask-image: radial-gradient(ellipse 90% 50% at 70% 20%, #000 10%, transparent 70%); mask-image: radial-gradient(ellipse 90% 50% at 70% 20%, #000 10%, transparent 70%); }
    .hero-top { margin-bottom: 26px; }
    .hero-kicker { font-size: 0.72rem; }
    .hero-caps li { font-size: 0.8rem; padding: 6px 11px; }
    .hero-actions .btn { width: 100%; }
    .hero-profi { margin: 4px 0 0; }
    .hp-metrics { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px 16px; }

    .services-grid { grid-template-columns: 1fr; }
    .case-meta div { grid-template-columns: 1fr; gap: 4px; }

    .flow-tab { padding: 16px 14px 14px; }
    .flow-toggle { padding: 0 14px; }
    .ft-toggle-label { display: none; }
    .mock-body { padding: 14px; min-height: 0; }
    .mk-inbox, .mk-call, .mk-doc { grid-template-columns: 1fr; }
    .mk-obj { grid-template-columns: 96px 1fr; }

    /* Map: radial layout gets too dense on phones — switch to a grid */
    .arch-map { aspect-ratio: auto; max-width: none; }
    .arch-rings, .arch-spokes { display: none; }
    .arch-core {
        position: relative;
        top: auto; left: auto;
        width: 100%;
        transform: none;
        margin-bottom: 12px;
        pointer-events: auto;
    }
    .core-layer { padding: 10px 14px; }
    .cl-sub { white-space: normal; }
    .arch-nodes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
    .arch-node {
        position: relative;
        left: auto; top: auto;
        transform: none;
        width: auto;
        padding: 12px 6px;
        border: 1px solid var(--line);
        border-radius: 10px;
        background: rgba(255, 255, 255, 0.015);
        transition-delay: 0ms;
    }
    .arch-node[aria-selected="true"] { border-color: var(--accent-2); background: var(--accent-soft); }
    .arch-node.is-related { border-color: rgba(126, 231, 255, 0.35); }
    .an-ico { width: 40px; height: 40px; }
    .an-label { font-size: 0.72rem; }
    .arch.is-pending .arch-node, .arch.is-pending .arch-core { opacity: 1; transform: none; }
    .arch-panels { min-height: 0; }
    /* Panels differ too much in height on phones; there is no autoplay here, so only taps switch them */
    .flow.is-stacked .flow-panel[hidden], .arch.is-stacked .arch-panel[hidden] { display: none; }

    .eng-grid { grid-template-columns: 1fr; }
    .eng-flow code { white-space: normal; line-height: 1.7; }
    .scale-item dd { font-size: 2.3rem; }
    .integ-grid { grid-template-columns: 1fr; }
    .integ-grid li, .integ-grid li:nth-child(2n) { padding: 18px 0; border-left: 0; }

    .systems-list li { grid-template-columns: 24px minmax(0, 1fr); padding: 16px 0; }
    .sl-what { grid-column: 2; grid-row: auto; }
    .sl-ex { grid-column: 2; grid-row: auto; justify-self: start; text-align: left; }

    .pj-visual { height: 180px; padding: 16px; }
    .pv-tydy { grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); gap: 8px; }
    .td-chat p:nth-child(2) { display: none; }
    .pj-visual.pv-messenger { height: auto; min-height: 180px; grid-template-columns: minmax(0, 1fr) auto auto; gap: 8px; }
    .ms-channels li { padding: 7px 8px; }
    .ms-hub { width: 80px; padding: 10px 6px; font-size: 0.56rem; }
    .ms-out li { padding: 6px 8px; font-size: 0.7rem; white-space: nowrap; }

    .faq-list { grid-template-columns: 1fr; }
    .stack-grid { grid-template-columns: 1fr; }
    .tg-card { grid-template-columns: auto minmax(0, 1fr); }
    .tg-arrow { display: none; }
    .tg-ico { width: 52px; height: 52px; border-radius: 14px; }
    .case-cta { flex-direction: column; align-items: flex-start; }
    .case-cta .btn { width: 100%; }
}

@media (max-width: 400px) {
    .arch-nodes { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .hero-title { font-size: 2.3rem; }
}

/* ---------- Reduced motion: kill every non-essential transition ---------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        transition-delay: 0ms !important;
    }
    .rv-pending { opacity: 1; transform: none; }
}

/* ---------- Print ---------- */
@media print {
    .site-header, .hero-bg, .ticker, .cmdk, .mobile-menu, .flow-toggle { display: none !important; }
    body { background: #fff; color: #000; }
    .js .flow-panel[hidden], .js .arch-panel[hidden] { display: grid !important; }
}