/* GKroup Drive — базовые стили.
   Всё самодостаточно: ни одного внешнего запроса, шрифты системные. */

:root {
    --gk-ink: #141213;
    --gk-red: #CB3028;
    --gk-red-dark: #A8241D;
    --gk-paper: #F1EDE8;
    --gk-sand: #EAE1D7;
    --gk-muted: #6B6560;
    --gk-line: #D8D0C6;

    /* Геометрический гротеск с системными подменами: локальные шрифты
       перечислены первыми, дальше — то, что точно есть в системе. */
    --gk-font: "Futura", "Jost", "Century Gothic", "URW Gothic", "Questrial",
               "Avenir Next", "Segoe UI", system-ui, -apple-system, "Helvetica Neue",
               Arial, sans-serif;

    --gk-shell: 1120px;
    --gk-gutter: 24px;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    background: var(--gk-paper);
    color: var(--gk-ink);
    font-family: var(--gk-font);
    font-size: 17px;
    line-height: 1.6;
    letter-spacing: 0.01em;
}

img, svg { max-width: 100%; height: auto; }

a { color: var(--gk-ink); text-decoration-color: var(--gk-line); text-underline-offset: 3px; }
a:hover { color: var(--gk-red); text-decoration-color: currentColor; }

:focus-visible { outline: 2px solid var(--gk-red); outline-offset: 3px; }

/* --- каркас ------------------------------------------------------------- */

.gk-shell {
    width: 100%;
    max-width: var(--gk-shell);
    margin: 0 auto;
    padding: 0 var(--gk-gutter);
}

.gk-page { display: flex; flex-direction: column; min-height: 100vh; }
.gk-main { flex: 1 0 auto; padding: 56px 0 96px; }

/* --- шапка -------------------------------------------------------------- */

.gk-header {
    padding: 28px 0;
    border-bottom: 1px solid var(--gk-line);
}

.gk-header__row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.gk-brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.gk-brand__mark { display: block; width: 62px; height: auto; }
.gk-brand__name { font-size: 15px; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; }
.gk-brand__name span { color: var(--gk-red); }

.gk-nav { display: flex; gap: 22px; flex-wrap: wrap; }
.gk-nav a {
    font-size: 12px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--gk-muted);
}
.gk-nav a:hover, .gk-nav a[aria-current="page"] { color: var(--gk-ink); }
.gk-nav a[aria-current="page"] { border-bottom: 2px solid var(--gk-red); padding-bottom: 2px; }

/* --- надстрочник с красной линейкой ------------------------------------- */

.gk-eyebrow {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 0 0 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--gk-muted);
}
.gk-eyebrow::before {
    content: "";
    width: 56px;
    height: 2px;
    background: var(--gk-red);
    flex: none;
}

/* --- заголовки ---------------------------------------------------------- */

.gk-h1 {
    margin: 0 0 20px;
    font-size: clamp(34px, 6vw, 62px);
    line-height: 1.04;
    font-weight: 800;
    letter-spacing: -0.02em;
}
.gk-h1 span { color: var(--gk-red); }

.gk-h2 {
    margin: 0 0 16px;
    font-size: clamp(22px, 3.2vw, 30px);
    line-height: 1.15;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.gk-h3 { margin: 0 0 8px; font-size: 18px; font-weight: 700; }

.gk-lede { margin: 0 0 28px; max-width: 46ch; font-size: 18px; color: var(--gk-muted); }

.gk-section { margin-top: 72px; }

/* --- герой -------------------------------------------------------------- */

.gk-hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 420px); gap: 56px; align-items: start; }

/* точечная сетка — чистый CSS, без картинок */
.gk-dots {
    height: 84px;
    margin-top: 28px;
    background-image: radial-gradient(var(--gk-muted) 1.2px, transparent 1.2px);
    background-size: 14px 14px;
    opacity: 0.42;
}

/* --- гейт --------------------------------------------------------------- */

.gk-gate {
    padding: 28px;
    background: #fff;
    border: 1px solid var(--gk-line);
}

.gk-field { display: block; margin-bottom: 16px; }
.gk-field__label {
    display: block;
    margin-bottom: 8px;
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gk-muted);
}

.gk-input {
    width: 100%;
    padding: 13px 14px;
    font: inherit;
    font-size: 16px;
    color: var(--gk-ink);
    background: var(--gk-paper);
    border: 1px solid var(--gk-line);
    border-radius: 0;
    transition: border-color 0.15s ease, background-color 0.15s ease;
}
.gk-input::placeholder { color: #A79F96; }
.gk-input:focus { border-color: var(--gk-ink); background: #fff; outline: none; }
.gk-input.is-invalid { border-color: var(--gk-red); background: #FBF0EF; }

.gk-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 13px 22px;
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--gk-paper);
    background: var(--gk-ink);
    border: 1px solid var(--gk-ink);
    border-radius: 0;
    cursor: pointer;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}
.gk-btn:hover { background: var(--gk-red); border-color: var(--gk-red); }
.gk-btn[disabled] { opacity: 0.55; cursor: not-allowed; }
.gk-btn--ghost { color: var(--gk-ink); background: transparent; }
.gk-btn--ghost:hover { color: var(--gk-paper); }
.gk-btn--auto { width: auto; }

.gk-msg {
    min-height: 22px;
    margin: 12px 0 0;
    font-size: 14px;
    line-height: 1.45;
}
.gk-msg--error { color: var(--gk-red-dark); }
.gk-msg--ok { color: var(--gk-ink); }

.gk-hint { margin: 16px 0 0; font-size: 13px; color: var(--gk-muted); }

/* --- сетки и карточки --------------------------------------------------- */

.gk-grid { display: grid; gap: 24px; }
.gk-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.gk-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.gk-card { padding: 24px; background: var(--gk-sand); border: 1px solid var(--gk-line); }
.gk-card p { margin: 0; color: var(--gk-muted); font-size: 15px; }
.gk-card__num {
    display: block;
    margin-bottom: 14px;
    font-size: 12px;
    letter-spacing: 0.22em;
    color: var(--gk-red);
}

.gk-marks { display: flex; flex-wrap: wrap; gap: 8px 26px; margin: 0; padding: 0; list-style: none; }
.gk-marks li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--gk-muted);
}
.gk-marks li::before { content: ""; width: 8px; height: 8px; background: var(--gk-red); border-radius: 50%; flex: none; }

/* --- таблицы ------------------------------------------------------------ */

.gk-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.gk-table caption { text-align: left; padding-bottom: 12px; color: var(--gk-muted); font-size: 14px; }
.gk-table th, .gk-table td { padding: 14px 12px; text-align: left; border-bottom: 1px solid var(--gk-line); vertical-align: top; }
.gk-table th {
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--gk-muted);
    font-weight: 600;
}
.gk-table td:first-child { font-weight: 600; }

.gk-badge {
    display: inline-block;
    padding: 3px 10px;
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    border: 1px solid var(--gk-line);
    color: var(--gk-muted);
    background: #fff;
}
.gk-badge--ok { color: #2F6A46; border-color: #BFD6C6; background: #F2F8F4; }
.gk-badge--soon { color: var(--gk-red-dark); border-color: #E4C4C1; background: #FBF0EF; }

/* --- проза -------------------------------------------------------------- */

.gk-prose { max-width: 70ch; }
.gk-prose h2 { margin: 44px 0 12px; font-size: 22px; font-weight: 700; }
.gk-prose h3 { margin: 28px 0 8px; font-size: 17px; font-weight: 700; }
.gk-prose p, .gk-prose li { color: #33302E; }
.gk-prose ul, .gk-prose ol { padding-left: 22px; }
.gk-prose li { margin-bottom: 8px; }
.gk-prose__meta { color: var(--gk-muted); font-size: 14px; }

.gk-faq { border-top: 1px solid var(--gk-line); }
.gk-faq details { border-bottom: 1px solid var(--gk-line); padding: 18px 0; }
.gk-faq summary { cursor: pointer; font-weight: 700; list-style: none; }
.gk-faq summary::-webkit-details-marker { display: none; }
.gk-faq summary::after { content: "+"; float: right; color: var(--gk-red); font-weight: 400; }
.gk-faq details[open] summary::after { content: "\2212"; }
.gk-faq p { margin: 12px 0 0; color: var(--gk-muted); }

/* --- подвал ------------------------------------------------------------- */

.gk-footer {
    flex: none;
    padding: 32px 0 48px;
    border-top: 1px solid var(--gk-line);
    background: var(--gk-sand);
}
.gk-footer__row { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; align-items: center; }
.gk-footer a { font-size: 13px; color: var(--gk-muted); text-decoration: none; }
.gk-footer a:hover { color: var(--gk-ink); }
.gk-footer__links { display: flex; gap: 20px; flex-wrap: wrap; }
.gk-footer__legal { font-size: 13px; color: var(--gk-muted); }

/* --- 404 ---------------------------------------------------------------- */

.gk-oops { padding: 72px 0; text-align: center; }
.gk-oops__code {
    font-size: clamp(72px, 16vw, 168px);
    line-height: 1;
    font-weight: 800;
    letter-spacing: -0.04em;
    color: var(--gk-ink);
}
.gk-oops__code span { color: var(--gk-red); }

/* --- адаптив ------------------------------------------------------------ */

@media (max-width: 900px) {
    .gk-hero { grid-template-columns: minmax(0, 1fr); gap: 36px; }
    .gk-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
    body { font-size: 16px; }
    .gk-main { padding: 36px 0 64px; }
    .gk-grid--3, .gk-grid--2 { grid-template-columns: minmax(0, 1fr); }
    .gk-nav { gap: 14px; }
    .gk-section { margin-top: 52px; }
    .gk-table { font-size: 14px; }
}

@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; animation: none !important; }
}