/* ==========================================================================
   base.css — общий каркас страниц (кейсы, гайды). Токены синхронизированы с home.css.
   Главную (home.css) не трогаем: этот файл самодостаточен.
   ========================================================================== */
:root {
    --bg: #0A0A0F;
    --fg: #EDEDF2;
    --soft: #c3c3d2;
    --dim: #9a9ab2;
    --faint: #808099;
    --rule: #22222e;
    --rule2: #33334a;
    --av1: #ff3b1f;
    --av2: #ff8a3d;
    --accent: #ff6a52;
    --warm: #ffb020;
    --grad: linear-gradient(100deg, var(--av1), var(--av2));
    --grad-r: linear-gradient(90deg, var(--av1), var(--av2));
    --glass: rgba(255, 59, 31, .05);
    --glass-br: rgba(255, 138, 61, .16);
    --ok: #3ad17c;
    --warn: #ffb020;
    --mono: "JetBrains Mono", ui-monospace, monospace;
    --disp: "Unbounded", sans-serif;
    --sans: "Hanken Grotesk", system-ui, sans-serif;
    --pad: clamp(22px, 5vw, 90px);
    color-scheme: dark;
}

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

html {
    overflow-x: hidden;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--fg);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    font-variant-numeric: tabular-nums;
}

::selection {
    background: var(--av1);
    color: #0A0A0F;
}

a {
    color: inherit;
    text-decoration: none;
}

h1, h2, h3, h4 {
    margin: 0;
    font-family: var(--disp);
    font-weight: 800;
    letter-spacing: -.02em;
    line-height: 1.02;
    text-wrap: balance;
}

button {
    font: inherit;
}

button, a, input {
    touch-action: manipulation;
    -webkit-tap-highlight-color: rgba(255, 59, 31, .25);
}

:focus-visible {
    outline: 2px solid var(--av2);
    outline-offset: 3px;
    border-radius: 2px;
}

img {
    max-width: 100%;
    display: block;
}

/* ── фоновые слои ── */
.bg, .grid, .noise {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
}

.bg {
    background:
        radial-gradient(60% 50% at 78% 8%, rgba(255, 59, 31, .16), transparent 60%),
        radial-gradient(50% 45% at 12% 92%, rgba(255, 138, 61, .10), transparent 60%),
        var(--bg);
}

.grid {
    background-image:
        linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
    background-size: 46px 46px;
    opacity: .5;
    mask-image: radial-gradient(120% 80% at 50% 0%, #000 40%, transparent 100%);
    -webkit-mask-image: radial-gradient(120% 80% at 50% 0%, #000 40%, transparent 100%);
}

.noise {
    opacity: .04;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ── утилиты ── */
.acc {
    color: var(--accent);
}

.grad {
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.mono {
    font-family: var(--mono);
}

.skip {
    position: absolute;
    left: -999px;
    top: 8px;
    z-index: 300;
    background: var(--av1);
    color: #fff;
    padding: 14px 20px;
    border-radius: 8px;
    font-family: var(--mono);
    font-size: 12px;
    display: inline-flex;
    align-items: center;
    min-height: 44px;
}

.skip:focus {
    left: 8px;
}

/* ── контейнер / секции ── */
.wrap {
    width: min(1180px, 100% - 2 * var(--pad));
    margin-inline: auto;
}

.sec {
    padding-block: clamp(48px, 8vw, 110px);
}

.sec + .sec {
    padding-top: 0;
}

.head {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 30px;
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--faint);
}

.head .addr {
    color: var(--accent);
    font-weight: 700;
}

.head .kick {
    color: var(--dim);
}

.head .line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--rule2), transparent);
}

/* ── кнопки ── */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    background: #bb2500;
    color: #fff;
    border: none;
    padding: .85rem 2.2rem;
    font: 700 .9rem/1 var(--mono);
    letter-spacing: .08em;
    cursor: pointer;
    clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
    transition: background .2s ease, transform .2s ease;
}

.btn-primary:hover {
    background: #d92c00;
    transform: translateY(-1px);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    min-height: 46px;
    padding: .8rem 1.6rem;
    color: var(--fg);
    font: 500 .85rem/1 var(--mono);
    letter-spacing: .06em;
    border: 1px solid var(--glass-br);
    border-radius: 10px;
    opacity: .85;
    transition: opacity .2s, border-color .2s, background .2s;
}

.btn-ghost:hover {
    opacity: 1;
    border-color: rgba(255, 138, 61, .5);
    background: var(--glass);
}

/* ── врезка / pledge ── */
.pledge {
    margin-top: 22px;
    border: 1px solid var(--glass-br);
    border-left: 3px solid var(--av1);
    border-radius: 12px;
    padding: 20px 24px;
    color: var(--soft);
    background: var(--glass);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

/* ── верхняя мини-навигация ── */
.topbar {
    position: sticky;
    top: 0;
    z-index: 60;
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 14px var(--pad);
    background: rgba(9, 9, 15, .6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--rule);
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: .08em;
}

.topbar .brand {
    font-weight: 700;
    color: var(--fg);
}

.topbar .brand b {
    color: var(--accent);
}

.topbar .spacer {
    flex: 1;
}

.topbar a.tb-link {
    color: var(--dim);
    transition: color .2s;
}

.topbar a.tb-link:hover {
    color: var(--fg);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: .08em;
    color: var(--dim);
    transition: color .2s;
}

.back-link:hover {
    color: var(--accent);
}

/* ── футер ── */
.colophon {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 26px;
    align-items: center;
    justify-content: space-between;
    width: min(1180px, 100% - 2 * var(--pad));
    margin: 40px auto 30px;
    padding: 20px 26px;
    background: rgba(9, 9, 15, .55);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--rule);
    border-radius: 14px;
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: .05em;
    color: var(--faint);
}

.colophon a {
    color: var(--accent);
}

/* ── sticky CTA ── */
.sticky-cta {
    position: fixed;
    bottom: 22px;
    right: 22px;
    z-index: 80;
}

.sticky-cta a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #bb2500;
    color: #fff;
    padding: .8rem 1.6rem;
    font: 700 .82rem/1 var(--mono);
    letter-spacing: .06em;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(187, 37, 0, .4);
    transition: background .2s, transform .2s;
}

.sticky-cta a:hover {
    background: #d92c00;
    transform: translateY(-2px);
}

@media (max-width: 640px) {
    .sticky-cta {
        bottom: 14px;
        right: 14px;
    }
}