:root {
    --bg: #f5f6f8;
    --surf: #fff;
    --ink: #0d1220;
    --mut: #5b6475;
    --line: #e3e6ec;
    --ac: #1d5cff;
    --ac2: #00a6ff;
    --dark: #0b1020;
    --r: 20px;
    --sh: 0 10px 30px -12px rgba(13, 18, 32, .18);
    --f: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif
}

* {
    box-sizing: border-box;
    margin: 0
}

html {
    scroll-behavior: smooth
}

body {
    font-family: var(--f);
    background: var(--bg);
    color: var(--ink);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden
}

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

a {
    color: inherit
}

ul {
    list-style: none;
    padding: 0
}

.wrap {
    width: min(1180px, 92%);
    margin-inline: auto
}

.skip {
    position: absolute;
    left: -999px;
    top: 8px;
    background: var(--ink);
    color: #fff;
    padding: .6rem 1rem;
    border-radius: 8px;
    z-index: 200
}

.skip:focus {
    left: 8px
}

:focus-visible {
    outline: 3px solid var(--ac);
    outline-offset: 3px
}

.ico {
    width: 26px;
    height: 26px;
    color: var(--ac);
    flex: none
}

.progress {
    position: fixed;
    inset: 0 0 auto;
    height: 3px;
    z-index: 120
}

.progress i {
    display: block;
    height: 100%;
    width: 100%;
    background: linear-gradient(90deg, var(--ac), var(--ac2));
    transform: scaleX(0);
    transform-origin: 0 50%
}


/* header */

.site-header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 100;
    padding-top: env(safe-area-inset-top, 0);
    transition: background .3s, box-shadow .3s, backdrop-filter .3s
}

.site-header.scrolled {
    background: rgba(255, 255, 255, .85);
    backdrop-filter: blur(14px);
    box-shadow: 0 1px 0 var(--line)
}

.bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px
}

.brand {
    display: flex;
    align-items: center;
    gap: .6rem;
    text-decoration: none
}

.mark {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--ac), var(--ac2))
}

.brand-t {
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: -.02em
}

.brand-t b {
    font-weight: 500;
    color: var(--ac);
    margin-left: .25em
}

.nav ul {
    display: flex;
    gap: .4rem
}

.nav a {
    text-decoration: none;
    padding: .55rem .95rem;
    border-radius: 999px;
    font-size: .95rem;
    color: var(--mut);
    transition: color .2s, background .2s
}

.nav a:hover {
    color: var(--ink);
    background: rgba(13, 18, 32, .06)
}

.nav a.is-active {
    color: var(--ink);
    background: #fff;
    box-shadow: var(--sh)
}

.burger {
    display: none;
    width: 44px;
    height: 44px;
    border: 0;
    background: #fff;
    border-radius: 12px;
    box-shadow: var(--sh);
    cursor: pointer;
    position: relative
}

.burger span {
    position: absolute;
    left: 12px;
    right: 12px;
    height: 2px;
    background: var(--ink);
    transition: transform .3s
}

.burger span:first-child {
    top: 17px
}

.burger span:last-child {
    top: 25px
}

.burger[aria-expanded=true] span:first-child {
    transform: translateY(4px) rotate(45deg)
}

.burger[aria-expanded=true] span:last-child {
    transform: translateY(-4px) rotate(-45deg)
}


/* buttons */

.btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .9rem 1.5rem;
    border-radius: 999px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    transition: transform .25s, box-shadow .25s, background .25s;
    min-height: 48px
}

.btn:hover {
    transform: translateY(-2px)
}

.btn:active {
    transform: translateY(0) scale(.98)
}

.btn .ico {
    width: 18px;
    height: 18px;
    color: inherit;
    transition: transform .25s
}

.btn:hover .ico {
    transform: translateX(4px)
}

.btn-primary {
    background: linear-gradient(135deg, var(--ac), var(--ac2));
    color: #fff;
    box-shadow: 0 10px 24px -8px rgba(29, 92, 255, .55)
}

.btn-ghost {
    background: #fff;
    border-color: var(--line);
    color: var(--ink)
}

.btn-ghost:hover {
    box-shadow: var(--sh)
}

.btn-dark {
    background: var(--ink);
    color: #fff
}

.btn-light {
    background: #fff;
    color: var(--ink)
}

.btn-ghost-d {
    border-color: rgba(255, 255, 255, .3);
    color: #fff;
    margin-top: 1rem
}

.btn-disabled {
    background: #e9ebf0;
    color: #8a92a3;
    cursor: not-allowed;
    pointer-events: none
}

.cta {
    display: flex;
    flex-wrap: wrap;
    gap: .8rem;
    margin-top: 1.6rem
}

.center {
    text-align: center;
    margin-top: 2rem
}

.center.cta {
    justify-content: center
}


/* hero */

.hero {
    position: relative;
    padding: 130px 0 90px;
    overflow: hidden;
    background: radial-gradient(1200px 500px at 80% 0, #e6eeff 0, transparent 60%), var(--bg)
}

.hero-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: 1.05fr .95fr;
    align-items: center
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: .14em;
    font-size: .78rem;
    font-weight: 700;
    color: var(--ac);
    margin-bottom: .8rem
}

.eyebrow.light {
    color: #9fc0ff
}

h1 {
    font-size: clamp(2.2rem, 5.2vw, 4.2rem);
    line-height: 1.05;
    letter-spacing: -.035em
}

h2 {
    font-size: clamp(1.7rem, 3.4vw, 2.6rem);
    line-height: 1.15;
    letter-spacing: -.025em;
    margin-bottom: .8rem
}

h3 {
    font-size: 1.15rem;
    margin-bottom: .35rem
}

.grad {
    background: linear-gradient(90deg, var(--ac), var(--ac2), var(--ac));
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: flow 6s linear infinite
}

.lead {
    font-size: clamp(1.05rem, 1.6vw, 1.25rem);
    color: var(--mut);
    max-width: 56ch;
    margin-top: 1.2rem
}

.glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(70px);
    opacity: .5;
    pointer-events: none
}

.g1 {
    width: 380px;
    height: 380px;
    background: #9fc0ff;
    top: -80px;
    right: 10%
}

.g2 {
    width: 300px;
    height: 300px;
    background: #b5e6ff;
    bottom: -60px;
    left: 5%
}

.scroll-ind {
    position: absolute;
    bottom: 22px;
    left: 50%;
    width: 24px;
    height: 38px;
    border: 2px solid var(--mut);
    border-radius: 14px;
    transform: translateX(-50%)
}

.scroll-ind i {
    position: absolute;
    left: 50%;
    top: 6px;
    width: 4px;
    height: 8px;
    border-radius: 2px;
    background: var(--mut);
    transform: translateX(-50%);
    animation: dot 1.8s ease-in-out infinite
}

.page-hero {
    padding: 150px 0 50px;
    background: radial-gradient(900px 400px at 85% 0, #e6eeff, transparent 60%)
}


/* sections */

.sec {
    padding: clamp(56px, 8vw, 100px) 0
}

.sec.alt {
    background: #fff
}

.sec-h {
    margin-bottom: 2rem
}

.band {
    background: #fff;
    border-block: 1px solid var(--line);
    padding: 2rem 0
}

.benefits,
.grid4 {
    display: grid;
    gap: 1.2rem;
    grid-template-columns: repeat(4, 1fr)
}

.grid3 {
    display: grid;
    gap: 1.2rem;
    grid-template-columns: repeat(3, 1fr)
}

.benefit {
    display: flex;
    flex-direction: column;
    gap: .3rem;
    padding: 1.2rem;
    background: var(--bg);
    border-radius: var(--r)
}

.benefit p {
    color: var(--mut);
    font-size: .95rem
}

.card {
    background: var(--surf);
    border: 1px solid var(--line);
    border-radius: var(--r);
    padding: 1.2rem;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    gap: .4rem;
    transition: transform .35s, box-shadow .35s, border-color .35s
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--sh);
    border-color: #c9d6ff
}

.card p {
    color: var(--mut);
    font-size: .95rem
}

.imgbox {
    overflow: hidden;
    border-radius: 14px;
    background: linear-gradient(160deg, #eef2fa, #fff);
    aspect-ratio: 4/3
}

.imgbox img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .7s cubic-bezier(.2, .7, .2, 1)
}

.card:hover .imgbox img {
    transform: scale(1.06)
}

.more {
    display: inline-flex;
    gap: .4rem;
    align-items: center;
    color: var(--ac);
    font-weight: 600;
    margin-top: auto
}

.more .ico {
    width: 16px;
    height: 16px
}

.price {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -.02em
}

.prod .btn {
    margin-top: .5rem;
    align-self: flex-start
}

.note,
.pending {
    color: var(--mut);
    font-size: .85rem;
    margin-top: 1.2rem
}

.pending {
    font-style: italic
}

.promo {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: space-between;
    align-items: center;
    padding: clamp(1.8rem, 5vw, 3.5rem);
    border-radius: 28px;
    color: #fff;
    background: linear-gradient(120deg, #0b1020, #13306e, #0b1020);
    background-size: 200% 100%;
    animation: flow 12s linear infinite
}

.promo p {
    color: #c9d3ea
}

.split {
    display: grid;
    gap: 2.5rem;
    grid-template-columns: 1fr 1fr;
    align-items: center
}

.split p {
    color: var(--mut);
    margin-bottom: 1rem
}

.contact-mini {
    display: flex;
    flex-direction: column;
    gap: .8rem;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--r);
    padding: 1.6rem;
    align-items: flex-start
}

.contact-mini a:not(.btn),
.contact-mini span {
    display: flex;
    gap: .6rem;
    align-items: center;
    text-decoration: none
}

.catalog-slot {
    border: 2px dashed #b9c6e6;
    border-radius: 28px;
    background: #fff;
    text-align: center;
    padding: clamp(2.5rem, 8vw, 6rem) 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    min-height: 340px;
    justify-content: center
}

.link-card .ico {
    width: 30px;
    height: 30px
}

.narrow {
    max-width: 760px
}

.faq {
    border-bottom: 1px solid var(--line)
}

.faq-q {
    width: 100%;
    text-align: left;
    background: none;
    border: 0;
    padding: 1.2rem 0;
    font: 600 1.05rem var(--f);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    color: var(--ink)
}

.faq-q span {
    width: 14px;
    height: 14px;
    position: relative;
    flex: none;
    margin-top: 6px
}

.faq-q span::before,
.faq-q span::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 6px;
    height: 2px;
    background: var(--ac);
    transition: transform .3s
}

.faq-q span::after {
    transform: rotate(90deg)
}

.faq-q[aria-expanded=true] span::after {
    transform: rotate(0)
}

.faq-a {
    overflow: hidden
}

.faq-a p {
    padding-bottom: 1.2rem;
    color: var(--mut)
}


/* footer */

.site-footer {
    background: var(--dark);
    color: #d4dbec;
    padding: 60px 0 24px
}

.fgrid {
    display: grid;
    gap: 2rem;
    grid-template-columns: 1.4fr 1fr 1fr
}

.site-footer h3 {
    color: #fff;
    font-size: 1rem
}

.site-footer a {
    text-decoration: none;
    color: #aab6d3
}

.site-footer a:hover {
    color: #fff
}

.site-footer li {
    margin: .35rem 0
}

.brand-t.big {
    font-size: 1.5rem;
    color: #fff
}

.muted {
    color: #8f9bb8;
    max-width: 38ch;
    margin-top: .5rem
}

.copy {
    margin-top: 2.5rem;
    padding-top: 1.2rem;
    border-top: 1px solid #1d2a4a;
    font-size: .85rem;
    color: #8f9bb8
}


/* responsive */

@media(max-width:960px) {
    .hero-grid,
    .split {
        grid-template-columns: 1fr
    }
    .benefits,
    .grid4 {
        grid-template-columns: repeat(2, 1fr)
    }
    .grid3 {
        grid-template-columns: 1fr 1fr
    }
    .hero {
        padding-top: 110px
    }
    .fgrid {
        grid-template-columns: 1fr 1fr
    }
}

@media(max-width:760px) {
    .burger {
        display: block
    }
    .nav {
        position: fixed;
        inset: 0;
        background: rgba(245, 246, 248, .98);
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-12px);
        transition: opacity .3s, transform .3s, visibility .3s
    }
    .nav.open {
        opacity: 1;
        visibility: visible;
        transform: none
    }
    .nav ul {
        flex-direction: column;
        align-items: center;
        gap: .6rem
    }
    .nav a {
        font-size: 1.5rem;
        padding: .7rem 1.4rem
    }
    .burger {
        z-index: 2
    }
}

@media(max-width:560px) {
    .benefits,
    .grid4,
    .grid3,
    .fgrid {
        grid-template-columns: 1fr
    }
    .scroll-ind {
        display: none
    }
    .btn {
        width: 100%;
        justify-content: center
    }
    .cta {
        flex-direction: column
    }
}