/* =============================================================
   16SHIN.RU — тёмный премиум-лендинг запчастей для спецтехники
   ============================================================= */

:root {
    --bg:            #0a0d13;
    --bg-alt:        #0e131b;
    --surface:       #141a24;
    --surface-2:     #1a2130;
    --line:          rgba(255, 255, 255, .09);
    --line-strong:   rgba(255, 255, 255, .16);

    --text:          #e9edf5;
    --muted:         #97a2b4;

    --amber:         #f5a524;
    --amber-soft:    #ffc453;
    --red:           #e5484d;
    --green:         #25d366;

    --radius-sm:     12px;
    --radius:        18px;
    --radius-lg:     26px;

    --shadow:        0 24px 60px -28px rgba(0, 0, 0, .9);
    --shadow-amber:  0 18px 44px -22px rgba(245, 165, 36, .55);

    --container:     1200px;
    --pad:           clamp(16px, 4vw, 32px);
    --font:          'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
}

/* ---------------------------- base ---------------------------- */

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

html { scroll-behavior: smooth!important; -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    background-image:
        radial-gradient(900px 520px at 12% -10%, rgba(245, 165, 36, .10), transparent 60%),
        radial-gradient(760px 460px at 92% 4%, rgba(60, 130, 255, .10), transparent 62%);
    background-repeat: no-repeat;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3 { margin: 0; line-height: 1.15; font-weight: 800; letter-spacing: -.02em; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
ul, ol { margin: 0; padding: 0; list-style: none; }

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

.icon { width: 24px; height: 24px; flex: none; }
.icon--sm { width: 18px; height: 18px; }

.skip-link {
    position: absolute; left: -9999px; top: 0; z-index: 100;
    padding: 12px 18px; background: var(--amber); color: #0a0d13; border-radius: 0 0 12px 0;
}
.skip-link:focus { left: 0; }

:focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; border-radius: 6px; }

/* --------------------------- topbar --------------------------- */

.topbar {
    background: rgba(255, 255, 255, .03);
    border-bottom: 1px solid var(--line);
    font-size: 13px;
    color: var(--muted);
}
.topbar__inner {
    display: flex; align-items: center; justify-content: space-between;
    gap: 16px; min-height: 40px; flex-wrap: wrap;
}
.topbar__cities, .topbar__hours { display: inline-flex; align-items: center; gap: 8px; }
.topbar__cities .icon, .topbar__hours .icon { color: var(--amber); }

/* --------------------------- header --------------------------- */

.header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(10, 13, 19, .78);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid transparent;
    transition: border-color .25s ease, background .25s ease;
}
.header.is-stuck {
    border-bottom-color: var(--line);
    background: rgba(10, 13, 19, .94);
}
.header__inner {
    display: flex; align-items: center; gap: 24px;
    min-height: 72px;
}

.logo { display: inline-flex; align-items: center; gap: 10px; flex: none; }
.logo__mark {
    width: 30px; height: 30px; border-radius: 9px;
    background: linear-gradient(140deg, var(--amber-soft), var(--amber));
    box-shadow: var(--shadow-amber);
    position: relative;
}
.logo__mark::after {
    content: ''; position: absolute; inset: 8px;
    border: 2.5px solid rgba(10, 13, 19, .85); border-radius: 4px;
}
.logo__text { font-weight: 800; font-size: 20px; letter-spacing: -.03em; }
.logo__text i { font-style: normal; color: var(--amber); }

.nav { display: flex; align-items: center; gap: 4px; margin-inline: auto; flex-wrap: wrap; }
.nav__link {
    position: relative; padding: 9px 14px; border-radius: 10px;
    font-size: 15px; color: var(--muted);
    transition: color .2s ease, background .2s ease;
}
.nav__link:hover { color: var(--text); background: rgba(255, 255, 255, .06); }

.header__actions { display: flex; align-items: center; gap: 12px; flex: none; }
.header__phone {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 18px; border-radius: 999px;
    font-weight: 700; font-size: 15px; white-space: nowrap;
    color: #0a0d13; background: linear-gradient(140deg, var(--amber-soft), var(--amber));
    box-shadow: var(--shadow-amber);
    transition: transform .2s ease, filter .2s ease;
}
.header__phone:hover { transform: translateY(-1px); filter: brightness(1.06); }

.burger {
    display: none; width: 44px; height: 44px; padding: 0;
    border: 1px solid var(--line-strong); border-radius: 12px;
    background: transparent; cursor: pointer;
    flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.burger span {
    display: block; width: 18px; height: 2px; border-radius: 2px; background: var(--text);
    transition: transform .25s ease, opacity .2s ease;
}
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------------------------- hero ---------------------------- */

.hero { position: relative; padding: clamp(48px, 8vw, 96px) 0 0; overflow: hidden; }
.hero__glow {
    position: absolute; inset: -20% -10% auto; height: 620px; pointer-events: none;
    background:
        radial-gradient(560px 320px at 20% 40%, rgba(245, 165, 36, .18), transparent 65%),
        radial-gradient(520px 300px at 80% 20%, rgba(229, 72, 77, .14), transparent 65%);
    filter: blur(10px);
}
.hero__inner {
    position: relative;
    display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    gap: clamp(28px, 5vw, 64px); align-items: center;
    padding-bottom: clamp(40px, 6vw, 72px);
}

.badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 16px; border-radius: 999px;
    border: 1px solid rgba(245, 165, 36, .35);
    background: rgba(245, 165, 36, .10);
    color: var(--amber-soft); font-size: 14px; font-weight: 600;
}

.hero__title {
    margin: 22px 0 18px;
    font-size: clamp(34px, 5.4vw, 60px);
    letter-spacing: -.035em;
}
.grad {
    display: block;
    background: linear-gradient(100deg, var(--amber-soft), var(--amber) 45%, #ff8a3d);
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__lead { max-width: 620px; color: var(--muted); font-size: clamp(16px, 1.6vw, 19px); }

.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 30px 0 26px; }

.hero__facts { display: flex; flex-wrap: wrap; gap: 12px 26px; color: var(--muted); font-size: 15px; }
.hero__facts li { display: inline-flex; align-items: center; gap: 8px; }
.hero__facts .icon { color: var(--green); }

.panel {
    padding: 28px; border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background: linear-gradient(160deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .02));
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow);
}
.panel__label {
    display: block; margin-bottom: 18px;
    font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: var(--amber);
}
.panel__row {
    display: flex; align-items: baseline; justify-content: space-between; gap: 16px;
    padding: 14px 0; border-top: 1px solid var(--line);
}
.panel__row:first-of-type { border-top: 0; padding-top: 0; }
.panel__value { font-size: clamp(22px, 2.6vw, 30px); font-weight: 800; letter-spacing: -.03em; }
.panel__caption { color: var(--muted); font-size: 14px; text-align: right; }

/* --------------------------- marquee -------------------------- */

.marquee {
    position: relative; overflow: hidden;
    border-block: 1px solid var(--line);
    background: rgba(255, 255, 255, .02);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
            mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee__track {
    display: flex; align-items: center; gap: clamp(36px, 6vw, 80px);
    padding: 20px 0; width: max-content;
    animation: slide 30s linear infinite;
}
.marquee__item {
    font-size: clamp(18px, 2.4vw, 28px); font-weight: 800;
    letter-spacing: .06em; color: rgba(233, 237, 245, .35);
    white-space: nowrap; transition: color .3s ease;
}
.marquee:hover .marquee__item { color: rgba(245, 165, 36, .65); }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes slide { to { transform: translateX(-50%); } }

/* -------------------------- sections -------------------------- */

.section { padding: clamp(56px, 8vw, 104px) 0; }
.section--alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
.section--contacts {
    background:
        radial-gradient(700px 400px at 80% 0%, rgba(245, 165, 36, .10), transparent 65%),
        var(--bg-alt);
    border-top: 1px solid var(--line);
}

.section-head { max-width: 760px; margin-bottom: clamp(28px, 4vw, 48px); }
.eyebrow {
    display: inline-block; margin-bottom: 12px;
    font-size: 12px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
    color: var(--amber);
}
.section-title { font-size: clamp(26px, 3.6vw, 42px); }
.section-lead { margin-top: 14px; color: var(--muted); font-size: clamp(15px, 1.5vw, 18px); }

/* --------------------------- buttons -------------------------- */

.btn {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 15px 26px; border-radius: 999px;
    font-weight: 700; font-size: 16px; white-space: nowrap;
    border: 1px solid transparent;
    transition: transform .2s ease, filter .2s ease, background .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary {
    color: #06210f;
    background: linear-gradient(140deg, #3ee87f, var(--green));
    box-shadow: 0 18px 40px -20px rgba(37, 211, 102, .8);
}
.btn--primary:hover { filter: brightness(1.06); }
.btn--ghost {
    color: var(--text); border-color: var(--line-strong);
    background: rgba(255, 255, 255, .04);
}
.btn--ghost:hover { background: rgba(255, 255, 255, .09); border-color: var(--amber); }

.chip {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 9px 16px; border-radius: 999px;
    font-size: 14px; font-weight: 600;
    border: 1px solid var(--line-strong); background: rgba(255, 255, 255, .04);
    transition: background .2s ease, border-color .2s ease, transform .2s ease;
}
.chip:hover { transform: translateY(-2px); background: rgba(255, 255, 255, .09); }
.chip--wa:hover { border-color: var(--green); color: #b6ffd0; }
.chip--tg:hover { border-color: #55b3ff; color: #cfe8ff; }

/* ---------------------------- grid ---------------------------- */

.grid { display: grid; gap: clamp(14px, 1.8vw, 22px); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* ---------------------------- cards --------------------------- */

.card {
    position: relative; overflow: hidden;
    padding: 26px; border-radius: var(--radius);
    border: 1px solid var(--line);
    background: linear-gradient(165deg, var(--surface), var(--bg-alt));
    transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.card::after {
    content: ''; position: absolute; inset: auto -30% -60% auto;
    width: 220px; height: 220px; border-radius: 50%;
    background: radial-gradient(circle, rgba(245, 165, 36, .16), transparent 70%);
    opacity: 0; transition: opacity .3s ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: var(--shadow); }
.card:hover::after { opacity: 1; }

.card__icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 50px; height: 50px; margin-bottom: 18px;
    border-radius: 14px; color: var(--amber);
    background: rgba(245, 165, 36, .12); border: 1px solid rgba(245, 165, 36, .22);
}
.card__title { font-size: 19px; margin-bottom: 8px; }
.card__text { color: var(--muted); font-size: 15px; }

.card--amber { border-color: rgba(245, 165, 36, .3); }
.card--amber .card__icon { color: var(--amber); }
.card--red .card__icon {
    color: #ff8f92; background: rgba(229, 72, 77, .14); border-color: rgba(229, 72, 77, .3);
}
.card--red::after { background: radial-gradient(circle, rgba(229, 72, 77, .18), transparent 70%); }
.card--steel .card__icon {
    color: #9fc4ff; background: rgba(90, 150, 255, .12); border-color: rgba(90, 150, 255, .26);
}
.card--steel::after { background: radial-gradient(circle, rgba(90, 150, 255, .18), transparent 70%); }

.card--category {
    display: grid; grid-template-columns: auto 1fr auto; align-items: center;
    gap: 18px; padding: 22px 24px;
}
.card--category .card__icon { margin-bottom: 0; }
.card--category .card__title { font-size: 17px; }
.card--category .card__text { font-size: 14px; }
.card__arrow { color: var(--muted); transition: transform .25s ease, color .25s ease; }
.card--category:hover .card__arrow { color: var(--amber); transform: translateX(4px); }

.card--flat { background: rgba(255, 255, 255, .03); }

/* ----------------------------- CTA ---------------------------- */

.cta {
    display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
    gap: 24px; margin-top: clamp(22px, 3vw, 34px);
    padding: clamp(26px, 4vw, 40px); border-radius: var(--radius-lg);
    border: 1px solid rgba(245, 165, 36, .28);
    background:
        radial-gradient(600px 260px at 90% 0%, rgba(245, 165, 36, .16), transparent 65%),
        linear-gradient(150deg, var(--surface-2), var(--bg-alt));
    box-shadow: var(--shadow);
}
.cta__title { font-size: clamp(20px, 2.4vw, 28px); }
.cta__text { margin-top: 10px; color: var(--muted); max-width: 620px; }
.cta__actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* --------------------------- brands --------------------------- */

.brands { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(14px, 1.8vw, 20px); }
.brand {
    display: flex; flex-direction: column; gap: 6px;
    padding: 26px; border-radius: var(--radius);
    border: 1px solid var(--line); background: rgba(255, 255, 255, .03);
    transition: border-color .25s ease, background .25s ease, transform .25s ease;
}
.brand:hover { border-color: rgba(245, 165, 36, .4); background: rgba(245, 165, 36, .06); transform: translateY(-3px); }
.brand__name { font-size: clamp(20px, 2.2vw, 26px); font-weight: 800; letter-spacing: .04em; }
.brand__note { color: var(--muted); font-size: 14px; }

/* ---------------------------- steps --------------------------- */

.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(16px, 2vw, 24px); counter-reset: step; }
.step { position: relative; padding: 26px 22px; border-radius: var(--radius); border: 1px solid var(--line); background: rgba(255, 255, 255, .03); }
.step::before {
    content: ''; position: absolute; left: 22px; right: 22px; top: 0; height: 2px;
    background: linear-gradient(90deg, var(--amber), transparent);
    border-radius: 2px;
}
.step__num { display: block; margin-bottom: 14px; font-size: 30px; font-weight: 800; color: rgba(245, 165, 36, .55); letter-spacing: -.04em; }
.step__title { font-size: 18px; margin-bottom: 8px; }
.step__text { color: var(--muted); font-size: 15px; }

/* -------------------------- contacts -------------------------- */

.contacts { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: clamp(20px, 3vw, 36px); }
.contacts__main { display: flex; flex-direction: column; gap: 16px; }

.contact-line {
    display: grid; gap: 10px;
    padding: 26px; border-radius: var(--radius);
    border: 1px solid var(--line);
    background: linear-gradient(160deg, var(--surface), var(--bg-alt));
}
.contact-line__label { font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: var(--amber); }
.contact-line__phone { font-size: clamp(24px, 3.2vw, 34px); font-weight: 800; letter-spacing: -.02em; }
.contact-line__phone:hover { color: var(--amber-soft); }
.contact-line__links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 4px; }

.contacts__meta { display: flex; flex-wrap: wrap; gap: 12px; }
.meta {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 18px; border-radius: 999px;
    border: 1px solid var(--line); background: rgba(255, 255, 255, .03);
    color: var(--muted); font-size: 15px;
}
a.meta:hover { color: var(--text); border-color: var(--amber); }

.contacts__offices { display: grid; gap: 16px; align-content: start; }
.office {
    padding: 26px; border-radius: var(--radius);
    border: 1px solid var(--line); background: rgba(255, 255, 255, .03);
    transition: border-color .25s ease, transform .25s ease;
}
.office:hover { border-color: rgba(245, 165, 36, .35); transform: translateY(-3px); }
.office__icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 44px; height: 44px; margin-bottom: 14px;
    border-radius: 12px; color: var(--amber);
    background: rgba(245, 165, 36, .12); border: 1px solid rgba(245, 165, 36, .22);
}
.office__city { font-size: 20px; margin-bottom: 6px; }
.office__address { color: var(--muted); font-size: 15px; }
.office__note { margin-top: 8px; font-size: 14px; color: rgba(245, 165, 36, .85); }

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

.error { position: relative; overflow: hidden; padding: clamp(48px, 8vw, 96px) 0 clamp(56px, 8vw, 96px); }
.error__glow {
    position: absolute; inset: -25% -10% auto; height: 640px; pointer-events: none;
    background:
        radial-gradient(560px 320px at 25% 35%, rgba(229, 72, 77, .16), transparent 65%),
        radial-gradient(520px 300px at 78% 15%, rgba(245, 165, 36, .16), transparent 65%);
    filter: blur(10px);
}
.error__inner {
    position: relative;
    display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
    gap: clamp(28px, 5vw, 56px); align-items: center;
}

.badge--red { border-color: rgba(229, 72, 77, .38); background: rgba(229, 72, 77, .12); color: #ff9b9e; }

.error__code {
    margin: 20px 0 -6px;
    font-size: clamp(90px, 18vw, 180px); font-weight: 800; line-height: .9; letter-spacing: -.06em;
    background: linear-gradient(120deg, rgba(255, 196, 83, .95), rgba(229, 72, 77, .85) 70%);
    -webkit-background-clip: text; background-clip: text; color: transparent;
    text-shadow: 0 24px 60px rgba(245, 165, 36, .18);
}
.error__title { margin: 14px 0 16px; font-size: clamp(26px, 4vw, 44px); }
.error__lead { max-width: 620px; color: var(--muted); font-size: clamp(15px, 1.6vw, 18px); }
.error__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.error__links {
    display: grid; gap: 8px; padding: 26px; border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background: linear-gradient(160deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .02));
    backdrop-filter: blur(12px); box-shadow: var(--shadow);
}
.error__links .panel__label { margin-bottom: 6px; }
.error__link {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    padding: 13px 16px; border-radius: 12px;
    border: 1px solid transparent; color: var(--text); font-weight: 600;
    transition: background .2s ease, border-color .2s ease, transform .2s ease;
}
.error__link .icon { color: var(--muted); transition: transform .2s ease, color .2s ease; }
.error__link:hover { background: rgba(255, 255, 255, .06); border-color: var(--line-strong); transform: translateX(3px); }
.error__link:hover .icon { color: var(--amber); transform: translateX(3px); }

.error__popular { margin-top: clamp(40px, 6vw, 72px); }
.error__tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 6px; }
.tag {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 16px; border-radius: 999px; font-size: 14px; font-weight: 600;
    border: 1px solid var(--line); background: rgba(255, 255, 255, .03); color: var(--muted);
    transition: color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease;
}
.tag .icon { color: var(--amber); }
.tag:hover { color: var(--text); border-color: rgba(245, 165, 36, .4); background: rgba(245, 165, 36, .08); transform: translateY(-2px); }

.error__contacts {
    display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(14px, 2vw, 20px); margin-top: clamp(28px, 4vw, 44px);
}

@media (max-width: 1080px) {
    .error__inner { grid-template-columns: 1fr; }
    .error__links { max-width: 560px; }
}
@media (max-width: 820px) {
    .error__contacts { grid-template-columns: 1fr; }
}

/* --------------------------- footer --------------------------- */

.footer { border-top: 1px solid var(--line); background: var(--bg); padding-top: clamp(40px, 5vw, 64px); }
.footer__inner {
    display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(24px, 4vw, 48px); padding-bottom: 36px;
}
.footer__note { margin-top: 16px; color: var(--muted); font-size: 15px; max-width: 420px; }
.footer__social { display: flex; gap: 10px; margin-top: 20px; }
.social {
    display: inline-flex; align-items: center; justify-content: center;
    width: 42px; height: 42px; border-radius: 12px;
    border: 1px solid var(--line); background: rgba(255, 255, 255, .03); color: var(--muted);
    transition: color .2s ease, border-color .2s ease, transform .2s ease;
}
.social:hover { color: var(--amber); border-color: var(--amber); transform: translateY(-2px); }

.footer__col { display: flex; flex-direction: column; gap: 10px; }
.footer__title { font-size: 15px; letter-spacing: .1em; text-transform: uppercase; color: var(--text); margin-bottom: 6px; }
.footer__link { color: var(--muted); font-size: 15px; transition: color .2s ease; }
.footer__link:hover { color: var(--amber); }
.footer__link--muted:hover { color: var(--muted); }

.footer__bottom {
    display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
    padding-block: 22px; border-top: 1px solid var(--line);
    color: rgba(151, 162, 180, .75); font-size: 13px;
}

/* ------------------------ floating buttons -------------------- */

.floating {
    position: fixed; right: 18px; bottom: 18px; z-index: 60;
    display: flex; flex-direction: column; gap: 12px;
}
.floating__btn {
    display: inline-flex; align-items: center; justify-content: center;
    width: 54px; height: 54px; border-radius: 50%;
    color: #06210f; box-shadow: 0 16px 34px -14px rgba(0, 0, 0, .8);
    transition: transform .2s ease, filter .2s ease;
}
.floating__btn:hover { transform: translateY(-3px) scale(1.04); }
.floating__btn--wa { background: linear-gradient(140deg, #3ee87f, var(--green)); }
.floating__btn--tel { background: linear-gradient(140deg, var(--amber-soft), var(--amber)); }

/* ------------------------ scroll reveal ----------------------- */

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* --------------------------- adaptive ------------------------- */

@media (max-width: 1080px) {
    .nav { display: none; }
    .burger { display: inline-flex; }
    .nav.is-open {
        display: flex; flex-direction: column; align-items: stretch; gap: 2px;
        position: absolute; top: 100%; left: 0; right: 0;
        padding: 14px var(--pad) 20px;
        background: rgba(10, 13, 19, .98);
        border-bottom: 1px solid var(--line);
        backdrop-filter: blur(14px);
    }
    .nav.is-open .nav__link { padding: 13px 12px; font-size: 16px; }
    .header__inner { position: relative; }
    .hero__inner { grid-template-columns: 1fr; }
    .hero__panel { max-width: 560px; }
    .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .brands { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .footer__inner { grid-template-columns: 1fr 1fr; }
    .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 820px) {
    .grid--2, .grid--3 { grid-template-columns: 1fr; }
    .contacts { grid-template-columns: 1fr; }
    .topbar__hours { display: none; }
}

@media (max-width: 560px) {
    .header__phone span { display: none; }
    .header__phone { padding: 11px; border-radius: 50%; }
    .grid--4, .steps, .brands { grid-template-columns: 1fr; }
    .card--category { grid-template-columns: auto 1fr; }
    .card__arrow { display: none; }
    .btn { width: 100%; justify-content: center; }
    .cta__actions { width: 100%; }
    .floating { right: 12px; bottom: 12px; }
}

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