/* ==========================================================================
   Планировщик — лендинг.
   Дизайн-система: Material 3 + Apple-like (soft UI).
   - Тонкие elevation, скруглённые формы, плотная типографика.
   - Glassmorphism в шапке и hero.
   - Плавные spring-подобные переходы.
   - Светлая и автоматическая тёмная тема (prefers-color-scheme).
   ========================================================================== */

/* ---------- Токены дизайн-системы ---------- */
:root {
    /* Brand */
    --brand-50:  #EEF2FF;
    --brand-100: #E0E7FF;
    --brand-200: #C7D2FE;
    --brand-300: #A5B4FC;
    --brand-400: #818CF8;
    --brand-500: #6366F1;
    --brand-600: #4F46E5;
    --brand-700: #4338CA;
    --brand-violet: #8B5CF6;
    --brand-pink:   #EC4899;

    --brand:        #4F46E5;
    --brand-strong: #4338CA;
    --grad:         linear-gradient(135deg, #6366F1 0%, #4F46E5 45%, #8B5CF6 100%);
    --grad-soft:    linear-gradient(135deg, rgba(99,102,241,.10), rgba(139,92,246,.10));
    --grad-hero:    linear-gradient(180deg, #FAFBFF 0%, #F4F6FF 60%, #EEF1FF 100%);

    --bg:        #F5F6FB;
    --surface:   #FFFFFF;
    --surface-2: #FBFBFE;
    --surface-3: #F1F3FB;
    --ink:       #0F172A;
    --ink-soft:  #334155;
    --muted:     #64748B;
    --line:      #E6E8F1;
    --line-2:    #D9DCE8;

    --e1: 0 1px 2px rgba(15,23,42,.05), 0 1px 1px rgba(15,23,42,.03);
    --e2: 0 2px 4px rgba(15,23,42,.05), 0 4px 12px rgba(15,23,42,.06);
    --e3: 0 6px 12px rgba(15,23,42,.06), 0 16px 32px rgba(15,23,42,.08);
    --e4: 0 14px 28px rgba(15,23,42,.08), 0 28px 56px rgba(15,23,42,.12);
    --e5: 0 24px 50px rgba(15,23,42,.10), 0 40px 80px rgba(15,23,42,.16);

    --r-xs: 8px;
    --r-sm: 12px;
    --r-md: 18px;
    --r-lg: 24px;
    --r-xl: 32px;
    --r-2xl: 40px;
    --r-full: 999px;

    --ease-spring: cubic-bezier(.34,1.56,.64,1);
    --ease-out:    cubic-bezier(.22,1,.36,1);
    --ease-smooth: cubic-bezier(.4,0,.2,1);
    --d-fast: 160ms;
    --d-base: 260ms;
    --d-slow: 480ms;

    --maxw: 1240px;
    --nav-h: 72px;
    --gutter: 24px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg:        #0B0D17;
        --surface:   #151826;
        --surface-2: #1B1E2D;
        --surface-3: #232739;
        --ink:       #F1F5F9;
        --ink-soft:  #CBD5E1;
        --muted:     #94A3B8;
        --line:      #2A2E42;
        --line-2:    #353A52;
        --grad-hero: linear-gradient(180deg, #0B0D17 0%, #0E1120 60%, #11142A 100%);
        --brand-50:  #1E1B4B;
        --brand-100: #312E81;
        --e1: 0 1px 2px rgba(0,0,0,.4), 0 1px 1px rgba(0,0,0,.3);
        --e2: 0 2px 4px rgba(0,0,0,.5), 0 4px 12px rgba(0,0,0,.4);
        --e3: 0 6px 12px rgba(0,0,0,.5), 0 16px 32px rgba(0,0,0,.4);
        --e4: 0 14px 28px rgba(0,0,0,.5), 0 28px 56px rgba(0,0,0,.5);
    }
}

/* ---------- База ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 12px); -webkit-text-size-adjust: 100%; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
    color: var(--ink);
    background: var(--bg);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    text-rendering: optimizeLegibility;
    transition: background var(--d-slow) var(--ease-smooth), color var(--d-slow) var(--ease-smooth);
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }
h1, h2, h3, h4 {
    font-family: 'Manrope', 'Inter', sans-serif;
    font-weight: 800;
    line-height: 1.12;
    letter-spacing: -.025em;
    color: var(--ink);
}
::selection { background: rgba(99,102,241,.22); color: var(--ink); }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }

.skip-link {
    position: absolute; left: -999px; top: 12px;
    background: var(--brand); color: #fff;
    padding: 10px 16px; border-radius: var(--r-sm); z-index: 999;
    font-weight: 600;
}
.skip-link:focus { left: 12px; }

/* =================== Кнопки =================== */
.btn {
    --bh: 44px;
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    height: var(--bh);
    padding: 0 22px;
    font-weight: 600;
    font-size: 15px;
    line-height: 1;
    border-radius: var(--r-full);
    white-space: nowrap;
    color: #fff;
    background: var(--grad);
    box-shadow: 0 4px 12px rgba(79,70,229,.30), inset 0 1px 0 rgba(255,255,255,.18);
    transition: transform var(--d-fast) var(--ease-spring),
                box-shadow var(--d-base) var(--ease-smooth),
                background var(--d-base) var(--ease-smooth),
                color var(--d-base) var(--ease-smooth);
    position: relative;
    overflow: hidden;
    -webkit-tap-highlight-color: transparent;
}
.btn::after {
    content: ""; position: absolute; inset: 0;
    background: radial-gradient(120% 120% at var(--rx,50%) var(--ry,50%), rgba(255,255,255,.30), transparent 60%);
    opacity: 0; transition: opacity var(--d-base) var(--ease-smooth);
    pointer-events: none;
}
.btn:hover::after { opacity: 1; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 12px 24px rgba(79,70,229,.36), inset 0 1px 0 rgba(255,255,255,.22); }
.btn:active { transform: translateY(0) scale(.98); }

.btn--sm { --bh: 38px; padding: 0 18px; font-size: 14px; }
.btn--xl { --bh: 56px; padding: 0 32px; font-size: 16px; font-weight: 700; }

.btn--primary { color: #fff; background: var(--grad); }
.btn--ghost {
    color: var(--ink);
    background: var(--surface);
    box-shadow: var(--e2), inset 0 0 0 1px var(--line);
}
.btn--ghost:hover { box-shadow: var(--e3), inset 0 0 0 1px var(--brand-200); color: var(--brand); }
.btn--outline {
    color: var(--brand);
    background: transparent;
    box-shadow: inset 0 0 0 2px var(--brand-200);
}
.btn--outline:hover { background: var(--brand); color: #fff; box-shadow: 0 8px 20px rgba(79,70,229,.30); }
.btn--light {
    color: var(--brand);
    background: #fff;
    box-shadow: 0 10px 30px rgba(15,23,42,.18), inset 0 1px 0 rgba(255,255,255,.8);
}
.btn--light:hover { transform: translateY(-2px); }
.btn--github {
    background: linear-gradient(180deg, #1F2937, #111827);
    box-shadow: 0 6px 16px rgba(17,24,39,.35), inset 0 1px 0 rgba(255,255,255,.10);
}
.btn--github:hover { box-shadow: 0 12px 24px rgba(17,24,39,.45), inset 0 1px 0 rgba(255,255,255,.14); }
.btn__note { color: var(--muted); font-size: 13px; display: inline-flex; align-items: center; }

/* ---------- Чипы ---------- */
.chip {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 7px 14px;
    border-radius: var(--r-full);
    background: rgba(99,102,241,.10);
    color: var(--brand-strong);
    font-weight: 600; font-size: 13px;
    box-shadow: inset 0 0 0 1px rgba(99,102,241,.18);
}
.chip--light {
    background: rgba(255,255,255,.20);
    color: #fff;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,.28);
    backdrop-filter: blur(8px);
}
.chip--dark {
    background: rgba(99,102,241,.18);
    color: #C7D2FE;
    box-shadow: inset 0 0 0 1px rgba(99,102,241,.30);
}

.github-btn {
    display: inline-flex; align-items: center; gap: 10px;
    margin-top: 22px;
    padding: 10px 18px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--r-full);
    color: var(--ink-soft);
    font-weight: 600; font-size: 14px;
    box-shadow: var(--e2);
    transition: transform var(--d-base) var(--ease-spring), box-shadow var(--d-base) var(--ease-smooth), color var(--d-base) var(--ease-smooth);
}
.github-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--e3);
    color: var(--brand);
    border-color: var(--brand-200);
}
.gh-num { font-weight: 800; color: var(--brand); }

/* =================== Навигация =================== */
.nav {
    position: sticky; top: 12px;
    z-index: 50;
    margin: 12px auto 0;
    width: calc(100% - 24px);
    max-width: calc(var(--maxw) - 24px);
    height: var(--nav-h);
    background: rgba(255,255,255,.62);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border: 1px solid rgba(255,255,255,.50);
    border-radius: var(--r-full);
    box-shadow: var(--e2);
    transition: box-shadow var(--d-base) var(--ease-smooth), background var(--d-base) var(--ease-smooth);
}
@media (prefers-color-scheme: dark) {
    .nav { background: rgba(21,24,38,.55); border-color: rgba(255,255,255,.07); }
}
.nav.scrolled { box-shadow: var(--e3); }
.nav__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 0 22px; }
.brand {
    display: flex; align-items: center; gap: 11px;
    font-family: 'Manrope', sans-serif;
    font-weight: 800; font-size: 18px;
    color: var(--ink);
    letter-spacing: -.01em;
    transition: opacity var(--d-base) var(--ease-smooth);
}
.brand:hover { opacity: .85; }
.brand__icon {
    width: 36px; height: 36px;
    border-radius: 10px;
    background: var(--grad);
    padding: 6px;
    filter: drop-shadow(0 6px 14px rgba(79,70,229,.30));
    transition: transform var(--d-base) var(--ease-spring);
}
.brand:hover .brand__icon { transform: rotate(-6deg); }

.nav__links { display: flex; gap: 2px; }
.nav__links a {
    padding: 9px 14px;
    border-radius: var(--r-full);
    color: var(--ink-soft);
    font-weight: 500;
    font-size: 14.5px;
    transition: background var(--d-base) var(--ease-smooth), color var(--d-base) var(--ease-smooth);
}
.nav__links a:hover { color: var(--brand); background: rgba(99,102,241,.10); }

.nav__cta { display: flex; align-items: center; gap: 10px; }
.nav__burger {
    display: none;
    width: 42px; height: 42px;
    border-radius: 12px;
    background: var(--surface);
    box-shadow: var(--e2), inset 0 0 0 1px var(--line);
    flex-direction: column; justify-content: center; align-items: center;
    gap: 5px;
}
.nav__burger span {
    width: 20px; height: 2px; background: var(--ink); border-radius: 2px;
    transition: transform var(--d-base) var(--ease-spring), opacity var(--d-base);
}
.nav__burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =================== HERO =================== */
.hero {
    position: relative;
    padding: 80px 0 100px;
    overflow: hidden;
    background: var(--grad-hero);
}
.hero__bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: .55;
    animation: float 16s ease-in-out infinite;
}
.blob--1 { width: 520px; height: 520px; background: radial-gradient(circle at 30% 30%, #A5B4FC, transparent 65%); top: -140px; left: -100px; }
.blob--2 { width: 440px; height: 440px; background: radial-gradient(circle at 40% 40%, #C4B5FD, transparent 65%); bottom: -160px; right: 4%; animation-delay: -5s; }
.blob--3 { width: 360px; height: 360px; background: radial-gradient(circle at 40% 40%, #93C5FD, transparent 65%); top: 30%; left: 42%; animation-delay: -9s; opacity: .35; }
@keyframes float {
    0%, 100% { transform: translateY(0) translateX(0) scale(1); }
    50%      { transform: translateY(-40px) translateX(24px) scale(1.05); }
}

.hero__inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 56px;
    align-items: center;
}
.hero__text { max-width: 640px; }
.hero h1 {
    font-size: clamp(2rem, 5.2vw, 3.6rem);
    margin: 20px 0 20px;
    letter-spacing: -.035em;
    background: linear-gradient(180deg, var(--ink), var(--ink-soft));
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero__lead {
    color: var(--ink-soft);
    font-size: clamp(1rem, 1.8vw, 1.18rem);
    margin-bottom: 32px;
    max-width: 580px;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero__meta {
    display: flex; flex-wrap: wrap; align-items: center;
    gap: 10px; margin-top: 28px;
    color: var(--muted);
    font-size: 14px;
}
.hero__meta strong { color: var(--ink); font-size: 15.5px; font-weight: 700; }
.meta-sep { opacity: .4; }

.hero__visual {
    display: flex; justify-content: center; align-items: center;
    perspective: 1400px;
}
.phone {
    position: relative;
    width: 300px; height: 600px;
    border-radius: 52px;
    background: linear-gradient(145deg, #1F2333, #0F1220);
    padding: 12px;
    box-shadow: var(--e5), inset 0 1px 0 rgba(255,255,255,.06);
    animation: phoneIn 1s var(--ease-out) both;
    transform-style: preserve-3d;
    transition: transform 600ms var(--ease-spring);
}
.phone:hover { transform: rotateY(-3deg) rotateX(2deg); }
@keyframes phoneIn {
    from { opacity: 0; transform: translateY(50px) rotate(5deg) scale(.96); }
    to   { opacity: 1; transform: none; }
}
.phone__notch {
    position: absolute;
    top: 14px; left: 50%;
    transform: translateX(-50%);
    width: 110px; height: 26px;
    background: #0F1220;
    border-radius: 0 0 18px 18px;
    z-index: 3;
}
.phone__screen {
    width: 100%; height: 100%;
    border-radius: 42px;
    overflow: hidden;
    background: linear-gradient(165deg, #F7F8FF, #EEF1FF);
    position: relative;
    box-shadow: inset 0 0 0 1px rgba(0,0,0,.04);
}
@media (prefers-color-scheme: dark) {
    .phone__screen { background: linear-gradient(165deg, #1A1D2E, #232739); }
}

.mini-app {
    padding: 40px 18px 18px;
    height: 100%;
    display: flex; flex-direction: column;
    gap: 14px;
    font-size: 13px;
    color: var(--ink);
}
.mini-app__head .mini-app__title {
    font-family: 'Manrope', sans-serif;
    font-weight: 800; font-size: 16.5px;
    letter-spacing: -.02em;
}
.mini-app__date { color: var(--muted); font-size: 12.5px; }
.mini-progress {
    height: 10px;
    background: rgba(99,102,241,.10);
    border-radius: var(--r-full);
    overflow: hidden;
}
.mini-progress span {
    display: block; height: 100%;
    background: var(--grad);
    border-radius: var(--r-full);
    transition: width 1.4s var(--ease-out);
    box-shadow: 0 0 12px rgba(99,102,241,.4);
}
.mini-list { display: flex; flex-direction: column; gap: 8px; }
.mini-item {
    display: flex; align-items: center; gap: 12px;
    padding: 11px 13px;
    background: var(--surface);
    border-radius: var(--r-md);
    box-shadow: var(--e1);
    transition: transform var(--d-base) var(--ease-spring);
}
.mini-item:hover { transform: translateX(3px); }
.mini-item .dot {
    width: 18px; height: 18px;
    border-radius: var(--r-full);
    background: var(--brand);
    flex: none;
    box-shadow: 0 0 0 4px rgba(99,102,241,.14);
}
.mini-item.done .dot { background: #C7D2FE; box-shadow: none; }
.mini-item.done span:nth-child(2) { text-decoration: line-through; color: var(--muted); }

.mini-focus {
    margin-top: auto;
    display: flex; align-items: center; gap: 14px;
    background: var(--surface);
    border-radius: var(--r-md);
    padding: 14px 14px;
    box-shadow: var(--e1);
}
.focus-ring { width: 52px; height: 52px; position: relative; }
.focus-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.focus-ring circle { fill: none; stroke: rgba(99,102,241,.16); stroke-width: 6; }
.focus-ring .ring {
    stroke: var(--brand);
    stroke-dasharray: 214;
    stroke-dashoffset: 84;
    stroke-linecap: round;
    filter: drop-shadow(0 0 6px rgba(99,102,241,.4));
}
.focus-txt b { font-size: 16px; font-family: 'Manrope', sans-serif; }
.focus-txt span { color: var(--muted); display: block; font-size: 12px; }

/* =================== Секции =================== */
.section { padding: 96px 0; position: relative; }
.section--gradient {
    background:
        radial-gradient(1200px 600px at 0% 0%, rgba(99,102,241,.06), transparent 60%),
        radial-gradient(800px 500px at 100% 100%, rgba(139,92,246,.06), transparent 60%),
        var(--bg);
}
.section--dark {
    background:
        radial-gradient(900px 500px at 20% 0%, rgba(99,102,241,.16), transparent 60%),
        radial-gradient(700px 400px at 90% 100%, rgba(139,92,246,.18), transparent 60%),
        linear-gradient(180deg, #0F1220, #11142A);
    color: #F1F5F9;
}

.section__head { max-width: 700px; margin: 0 auto 56px; text-align: center; }
.eyebrow {
    display: inline-block;
    color: var(--brand);
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    font-size: 12.5px;
    padding: 5px 12px;
    border-radius: var(--r-full);
    background: rgba(99,102,241,.10);
    box-shadow: inset 0 0 0 1px rgba(99,102,241,.18);
}
.section__head h2 { font-size: clamp(1.8rem, 4vw, 2.7rem); margin: 16px 0 14px; }
.section__sub { color: var(--muted); font-size: 1.05rem; max-width: 580px; margin: 0 auto; }

/* =================== Сетки / карточки =================== */
.grid { display: grid; gap: 22px; }
.grid--features { grid-template-columns: repeat(4, 1fr); }
.grid--steps    { grid-template-columns: repeat(3, 1fr); }

.card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
    padding: 28px;
    box-shadow: var(--e1);
    transition: transform var(--d-base) var(--ease-spring),
                box-shadow var(--d-base) var(--ease-smooth),
                border-color var(--d-base) var(--ease-smooth);
    position: relative;
    overflow: hidden;
}
.card::before {
    content: "";
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    padding: 1px;
    background: var(--grad);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--d-base) var(--ease-smooth);
    pointer-events: none;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--e3); }
.card:hover::before { opacity: .9; }
.card__icon {
    width: 56px; height: 56px;
    display: grid; place-items: center;
    font-size: 26px;
    background: var(--grad-soft);
    border-radius: var(--r-md);
    margin-bottom: 18px;
    box-shadow: inset 0 0 0 1px rgba(99,102,241,.16);
    transition: transform var(--d-base) var(--ease-spring);
}
.card:hover .card__icon { transform: scale(1.06) rotate(-3deg); }
.card h3 { font-size: 1.08rem; margin-bottom: 10px; }
.card p  { color: var(--muted); font-size: .95rem; }

.step {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
    padding: 32px 28px;
    text-align: center;
    box-shadow: var(--e1);
    transition: transform var(--d-base) var(--ease-spring), box-shadow var(--d-base) var(--ease-smooth);
    position: relative;
}
.step:hover { transform: translateY(-4px); box-shadow: var(--e3); }
.step__num {
    width: 52px; height: 52px;
    margin: 0 auto 18px;
    display: grid; place-items: center;
    border-radius: var(--r-md);
    background: var(--grad);
    color: #fff;
    font-family: 'Manrope', sans-serif;
    font-weight: 800;
    font-size: 22px;
    box-shadow: 0 8px 20px rgba(79,70,229,.32), inset 0 1px 0 rgba(255,255,255,.20);
}
.step h3 { margin-bottom: 10px; font-size: 1.12rem; }
.step p  { color: var(--muted); font-size: .95rem; }

/* =================== Скачать =================== */
.download-card {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 40px;
    align-items: center;
    background: linear-gradient(135deg, #6366F1 0%, #4F46E5 45%, #7C3AED 100%);
    border-radius: var(--r-xl);
    padding: 54px 56px;
    color: #fff;
    box-shadow: 0 30px 60px rgba(79,70,229,.30), inset 0 1px 0 rgba(255,255,255,.16);
    position: relative;
    overflow: hidden;
}
.download-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(400px 300px at 0% 0%, rgba(255,255,255,.18), transparent 60%),
        radial-gradient(400px 300px at 100% 100%, rgba(255,255,255,.10), transparent 60%);
    pointer-events: none;
}
.download-card > * { position: relative; z-index: 1; }
.download-card h2 { font-size: clamp(1.7rem, 4vw, 2.5rem); color: #fff; margin: 16px 0; }
.download-card p  { color: rgba(255,255,255,.92); max-width: 540px; }
.download-card__actions { display: flex; align-items: center; flex-wrap: wrap; gap: 18px; margin-top: 26px; }
.download-card__filesize { color: rgba(255,255,255,.88); font-size: 14px; }
.download-card__hint { margin-top: 22px; color: rgba(255,255,255,.82); font-size: 13.5px; line-height: 1.6; }
.download-card__hint a { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
.download-card__hint a:hover { text-decoration: none; }

.download-card__qr { text-align: center; }
.qr-frame {
    background: #fff;
    padding: 16px;
    border-radius: var(--r-lg);
    box-shadow: 0 18px 40px rgba(0,0,0,.22), inset 0 1px 0 rgba(255,255,255,.7);
    display: inline-block;
    transition: transform var(--d-base) var(--ease-spring);
}
.qr-frame:hover { transform: scale(1.04) rotate(-1deg); }
.qr-frame img { border-radius: var(--r-sm); display: block; }
.qr-caption { display: block; margin-top: 12px; color: rgba(255,255,255,.88); font-size: 13.5px; }

/* История версий */
.version-history { margin-top: 64px; }
.version-history__title { font-size: 1.3rem; margin-bottom: 20px; font-weight: 700; }
.version-list { display: flex; flex-direction: column; gap: 12px; }
.version-item {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    overflow: hidden;
    box-shadow: var(--e1);
    transition: box-shadow var(--d-base) var(--ease-smooth), border-color var(--d-base) var(--ease-smooth);
}
.version-item:hover { box-shadow: var(--e2); border-color: var(--brand-200); }
.version-item__row {
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    gap: 18px;
    align-items: center;
    padding: 18px 22px;
    cursor: pointer;
    list-style: none;
}
.version-item__row::-webkit-details-marker { display: none; }
.version-item__tag {
    font-family: 'Manrope', sans-serif;
    font-weight: 800;
    color: var(--brand-strong);
    background: rgba(99,102,241,.10);
    padding: 5px 12px;
    border-radius: var(--r-sm);
    font-size: 13.5px;
}
.version-item__name { font-weight: 600; font-size: 15px; color: var(--ink); }
.version-item__date, .version-item__count { color: var(--muted); font-size: 13.5px; }
.version-item__body { padding: 0 22px 22px; }
.version-item__log {
    white-space: pre-line;
    color: var(--ink-soft);
    margin-bottom: 16px;
    font-size: .95rem;
    line-height: 1.7;
}

/* =================== GitHub =================== */
.github-card {
    background: rgba(255,255,255,.04);
    border: 1px solid rgba(255,255,255,.10);
    border-radius: var(--r-xl);
    padding: 54px;
    backdrop-filter: blur(10px);
}
.github-card h2 { color: #fff; margin: 16px 0; font-size: clamp(1.7rem, 4vw, 2.5rem); }
.github-card p  { color: #B6BCCF; max-width: 600px; }
.github-card__stats { display: flex; flex-wrap: wrap; gap: 32px; margin: 30px 0; }
.gh-stat strong {
    display: block;
    font-size: 1.8rem;
    font-family: 'Manrope', sans-serif;
    color: #fff;
    letter-spacing: -.02em;
}
.gh-stat { color: #B6BCCF; font-size: 14px; }
.github-card__actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.section--dark .github-card .chip--dark { color: #C7D2FE; }

/* =================== FAQ =================== */
.faq { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq__item {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    box-shadow: var(--e1);
    transition: box-shadow var(--d-base) var(--ease-smooth), border-color var(--d-base) var(--ease-smooth);
}
.faq__item:hover { border-color: var(--brand-200); box-shadow: var(--e2); }
.faq__item[open] { border-color: var(--brand-200); box-shadow: var(--e2); }
.faq__q {
    display: flex; align-items: center; justify-content: space-between; gap: 16px;
    padding: 20px 24px;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    font-size: 1.04rem;
    color: var(--ink);
}
.faq__q::-webkit-details-marker { display: none; }
.faq__chev {
    width: 28px; height: 28px; flex: none;
    border-radius: var(--r-full);
    background: rgba(99,102,241,.10);
    box-shadow: inset 0 0 0 1px rgba(99,102,241,.18);
    position: relative;
    transition: background var(--d-base) var(--ease-smooth);
}
.faq__item[open] .faq__chev { background: var(--brand); }
.faq__chev:before, .faq__chev:after {
    content: ""; position: absolute;
    background: var(--brand);
    border-radius: 2px;
    transition: transform var(--d-base) var(--ease-spring), background var(--d-base) var(--ease-smooth);
}
.faq__chev:before { width: 12px; height: 2px; top: 13px; left: 8px; }
.faq__chev:after  { width: 2px; height: 12px; top: 8px; left: 13px; }
.faq__item[open] .faq__chev:before { transform: scaleX(0); }
.faq__item[open] .faq__chev:after  { transform: rotate(90deg); background: #fff; }
.faq__item[open] .faq__chev:before { background: #fff; }
.faq__a {
    padding: 0 24px 22px;
    color: var(--muted);
    line-height: 1.7;
}

/* =================== CTA =================== */
.cta { padding: 70px 0 96px; }
.cta__inner {
    background: linear-gradient(140deg, #F2F4FF, #EDEFFF);
    border: 1px solid rgba(99,102,241,.18);
    border-radius: var(--r-xl);
    padding: 64px 40px;
    text-align: center;
    box-shadow: var(--e2);
    position: relative;
    overflow: hidden;
}
.cta__inner::before {
    content: "";
    position: absolute; inset: 0;
    background:
        radial-gradient(400px 200px at 0% 0%, rgba(99,102,241,.18), transparent 60%),
        radial-gradient(400px 200px at 100% 100%, rgba(139,92,246,.18), transparent 60%);
    pointer-events: none;
}
.cta__inner > * { position: relative; }
.cta__inner h2 { font-size: clamp(1.7rem, 4vw, 2.5rem); }
.cta__inner p  { color: var(--ink-soft); margin: 12px 0 30px; }

/* =================== Футер =================== */
.footer {
    background: linear-gradient(180deg, #0F1220, #0B0E1C);
    color: #B6BCCF;
    padding: 56px 0 30px;
}
.footer__inner {
    display: grid;
    grid-template-columns: 1.2fr 1fr auto;
    gap: 32px;
    align-items: center;
}
.footer__brand { display: flex; align-items: center; gap: 14px; }
.footer__brand img {
    width: 40px; height: 40px;
    border-radius: 10px;
    background: var(--grad);
    padding: 6px;
    filter: drop-shadow(0 6px 14px rgba(79,70,229,.45));
}
.footer__brand strong {
    display: block;
    color: #fff;
    font-weight: 700;
    font-size: 15px;
}
.footer__brand span { font-size: 13px; color: #8B91A8; }
.footer__links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer__links a {
    color: #B6BCCF;
    font-weight: 500;
    font-size: 14.5px;
    transition: color var(--d-base) var(--ease-smooth);
}
.footer__links a:hover { color: #fff; }
.footer__share { display: flex; align-items: center; gap: 10px; }
.share-btn {
    width: 40px; height: 40px;
    border: 1px solid rgba(255,255,255,.12);
    background: rgba(255,255,255,.04);
    border-radius: var(--r-full);
    color: #fff;
    font-size: 16px;
    transition: transform var(--d-base) var(--ease-spring), background var(--d-base) var(--ease-smooth), border-color var(--d-base) var(--ease-smooth);
}
.share-btn:hover {
    background: var(--brand);
    border-color: var(--brand);
    transform: translateY(-2px);
}
.footer__legal {
    margin-top: 34px;
    padding-top: 22px;
    border-top: 1px solid rgba(255,255,255,.08);
    display: flex;
    gap: 10px; flex-wrap: wrap;
    font-size: 13px;
    color: #7B8299;
}
.footer__legal a { transition: color var(--d-base) var(--ease-smooth); }
.footer__legal a:hover { color: #B6BCCF; }

/* Кнопка наверх */
.to-top {
    position: fixed;
    right: 22px; bottom: 22px;
    width: 52px; height: 52px;
    border-radius: var(--r-full);
    background: var(--grad);
    color: #fff;
    font-size: 20px;
    box-shadow: 0 12px 24px rgba(79,70,229,.36), inset 0 1px 0 rgba(255,255,255,.18);
    opacity: 0;
    pointer-events: none;
    transform: translateY(14px) scale(.9);
    transition: transform var(--d-base) var(--ease-spring), opacity var(--d-base) var(--ease-smooth);
    z-index: 60;
}
.to-top.show { opacity: 1; pointer-events: auto; transform: translateY(0) scale(1); }
.to-top:hover { transform: translateY(-3px) scale(1.04); }

/* =================== Анимация появления =================== */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition:
        opacity 700ms var(--ease-out),
        transform 700ms var(--ease-out);
}
.reveal.in { opacity: 1; transform: none; }

/* =================== Адаптив =================== */
@media (max-width: 1100px) {
    .grid--features { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 1024px) {
    .hero__inner { grid-template-columns: 1fr; gap: 40px; }
    .hero__visual { order: -1; }
    .phone { width: 260px; height: 520px; }
}
@media (max-width: 860px) {
    .footer__inner {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer__brand { justify-content: center; }
    .footer__share { justify-content: center; }
    .footer__links { justify-content: center; }
    .download-card {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 40px 28px;
    }
    .download-card__actions { justify-content: center; }
    .qr-frame { margin: 0 auto; }
    .grid--steps { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .section { padding: 64px 0; }
    .hero { padding: 50px 0 70px; }
    .nav {
        width: calc(100% - 16px);
        border-radius: var(--r-lg);
        margin-top: 8px;
    }
    .nav__links {
        position: fixed;
        top: calc(var(--nav-h) + 20px);
        left: 16px;
        right: 16px;
        flex-direction: column;
        gap: 4px;
        background: var(--surface);
        padding: 16px;
        border-radius: var(--r-lg);
        box-shadow: var(--e4);
        transform: translateY(-12px);
        opacity: 0;
        pointer-events: none;
        transition: transform var(--d-base) var(--ease-spring), opacity var(--d-base) var(--ease-smooth);
    }
    .nav__links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
    .nav__links a { padding: 14px 16px; font-size: 16px; }
    .nav__burger { display: flex; }
    .grid--features { grid-template-columns: repeat(2, 1fr); }
    .github-card { padding: 36px 26px; }
    .version-item__row {
        grid-template-columns: auto 1fr;
        grid-auto-flow: row;
        row-gap: 8px;
    }
    .version-item__date, .version-item__count { display: none; }
    .cta__inner { padding: 50px 28px; }
}
@media (max-width: 560px) {
    .grid--features { grid-template-columns: 1fr; }
    .hero h1 { font-size: 2.05rem; }
    .hero__actions .btn { width: 100%; }
    .btn--xl { padding: 0 28px; font-size: 15.5px; }
    .section__head h2 { font-size: 1.65rem; }
    .to-top { right: 16px; bottom: 16px; width: 46px; height: 46px; }
    .footer__legal { flex-direction: column; align-items: center; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
        scroll-behavior: auto !important;
    }
    .reveal { opacity: 1; transform: none; }
    .blob { animation: none; }
    .phone, .phone:hover { transform: none; animation: none; }
}