:root {
    --bg: #07111f;
    --bg-soft: #0d1b2d;
    --surface: rgba(255, 255, 255, 0.08);
    --surface-soft: rgba(255, 255, 255, 0.12);
    --text: #eef6ff;
    --muted: #a9bad2;
    --muted-light: #9fb0c7;
    --line: rgba(255, 255, 255, 0.12);
    --accent: #21d4fd;
    --accent-strong: #2f80ed;
    --accent-warm: #ffc857;
    --radius: 28px;
    --shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--text);
    background:
        radial-gradient(circle at 85% 8%, rgba(33, 212, 253, 0.12), transparent 28%),
        radial-gradient(circle at 15% 42%, rgba(47, 128, 237, 0.1), transparent 30%),
        linear-gradient(180deg, #07111f 0%, #0a1829 46%, #07111f 100%);
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    line-height: 1.6;
}

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

button,
input,
textarea {
    font: inherit;
}

.container {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
}

.skip {
    position: fixed;
    left: 20px;
    top: 20px;
    z-index: 100;
    padding: 12px 16px;
    border-radius: 999px;
    background: #ffffff;
    color: #07111f;
    transform: translateY(-140%);
    transition: transform 0.2s ease;
}

.skip:focus {
    transform: translateY(0);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(7, 17, 31, 0.86);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(18px);
}

.header-grid,
.footer-grid {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 82px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: #ffffff;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.brand-mark {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    color: #06101d;
    box-shadow: 0 14px 40px rgba(33, 212, 253, 0.32);
}

.brand-text {
    font-size: 1.05rem;
}

.nav {
    display: flex;
    align-items: center;
    gap: 26px;
    color: var(--muted-light);
    font-size: 0.95rem;
}

.nav a,
.header-action {
    transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.nav a:hover {
    color: #ffffff;
}

.header-action {
    padding: 11px 18px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 999px;
    color: #ffffff;
}

.header-action:hover {
    border-color: rgba(33, 212, 253, 0.75);
    background: rgba(33, 212, 253, 0.12);
}

.hero {
    position: relative;
    overflow: hidden;
    padding: 96px 0 86px;
    color: #ffffff;
    background:
        radial-gradient(circle at 80% 15%, rgba(33, 212, 253, 0.24), transparent 28%),
        radial-gradient(circle at 12% 18%, rgba(255, 200, 87, 0.14), transparent 24%),
        linear-gradient(135deg, #07111f 0%, #10243d 54%, #07111f 100%);
}

.hero::after {
    content: "";
    position: absolute;
    inset: auto -20% -36% 46%;
    height: 420px;
    background: linear-gradient(135deg, rgba(33, 212, 253, 0.35), rgba(47, 128, 237, 0.12));
    filter: blur(80px);
    transform: rotate(-8deg);
}

.hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.9fr);
    gap: 54px;
    align-items: center;
}

.eyebrow {
    margin: 0 0 14px;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    max-width: 760px;
    margin-bottom: 22px;
    font-size: clamp(2.7rem, 7vw, 5.6rem);
    line-height: 0.95;
    letter-spacing: -0.08em;
}

h2 {
    margin-bottom: 18px;
    font-size: clamp(2rem, 4vw, 3.4rem);
    line-height: 1.02;
    letter-spacing: -0.06em;
}

h3 {
    margin-bottom: 10px;
    font-size: 1.15rem;
    line-height: 1.25;
    letter-spacing: -0.02em;
}

.lead {
    max-width: 690px;
    margin-bottom: 32px;
    color: #c8d6ea;
    font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.hero-actions,
.trust-row {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
}

.hero-actions {
    margin-bottom: 28px;
}

.btn {
    display: inline-flex;
    min-height: 52px;
    align-items: center;
    justify-content: center;
    padding: 14px 22px;
    border: 0;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 800;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    color: #04101d;
    box-shadow: 0 18px 42px rgba(33, 212, 253, 0.3);
}

.btn-secondary {
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
}

.trust-row span {
    padding: 9px 13px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 999px;
    color: #d8e5f8;
    font-size: 0.9rem;
}

.hero-panel {
    padding: 26px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 36px;
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 34px 90px rgba(0, 0, 0, 0.28);
    backdrop-filter: blur(22px);
}

.panel-top {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
    color: #d9e7fb;
    font-weight: 700;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #28e98c;
    box-shadow: 0 0 0 7px rgba(40, 233, 140, 0.12);
}

.device-card {
    display: grid;
    grid-template-columns: 58px 1fr;
    gap: 16px;
    padding: 18px;
    margin-bottom: 14px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.1);
}

.device-card p,
.metric-grid span {
    margin: 0;
    color: #c8d6ea;
}

.device-icon {
    display: grid;
    height: 58px;
    place-items: center;
    border-radius: 18px;
    background: rgba(33, 212, 253, 0.16);
    color: var(--accent);
    font-weight: 900;
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

.metric-grid div {
    padding: 18px;
    border-radius: 22px;
    background: rgba(7, 17, 31, 0.42);
}

.metric-grid b {
    display: block;
    color: #ffffff;
    font-size: 2rem;
    line-height: 1;
}

.section {
    padding: 92px 0;
    color: var(--text);
}

.section-head {
    max-width: 760px;
    margin: 0 auto 42px;
    text-align: center;
}

.section-head.left {
    margin: 0;
    text-align: left;
}

.section-head p,
.section-text {
    color: var(--muted);
    font-size: 1.05rem;
}

.cards {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.card {
    position: relative;
    overflow: hidden;
    min-height: 290px;
    padding: 26px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.055));
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}

.card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 5px;
    background: linear-gradient(90deg, var(--accent), var(--accent-strong), var(--accent-warm));
}

.card-number {
    display: inline-grid;
    width: 46px;
    height: 46px;
    place-items: center;
    margin-bottom: 34px;
    border-radius: 16px;
    background: rgba(33, 212, 253, 0.14);
    color: var(--accent-strong);
    font-weight: 900;
}

.card p,
.info-list p,
.faq-list p,
.contact-card p {
    color: var(--muted);
}

.card a {
    display: inline-flex;
    margin-top: 12px;
    color: var(--accent);
    font-weight: 800;
}

.dark-section {
    color: #ffffff;
    background:
        radial-gradient(circle at 20% 15%, rgba(255, 200, 87, 0.08), transparent 26%),
        linear-gradient(180deg, rgba(7, 17, 31, 0.55), rgba(13, 27, 45, 0.72));
}

.dark-section .eyebrow {
    color: var(--accent-warm);
}

.dark-section .section-text,
.step p {
    color: #c5d2e6;
}

.service-grid,
.split,
.contact-card {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 48px;
    align-items: start;
}

.steps {
    display: grid;
    gap: 14px;
}

.step {
    display: grid;
    grid-template-columns: 54px 1fr;
    gap: 16px;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.06);
}

.step span {
    display: grid;
    height: 54px;
    place-items: center;
    border-radius: 18px;
    background: rgba(255, 200, 87, 0.16);
    color: var(--accent-warm);
    font-weight: 900;
}

.step p,
.step h3 {
    margin-bottom: 0;
}

.info-list {
    display: grid;
    gap: 16px;
}

.info-list article,
.faq-list details {
    padding: 24px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.055));
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}

.info-list p {
    margin-bottom: 0;
}

.faq-section {
    background:
        radial-gradient(circle at 78% 10%, rgba(33, 212, 253, 0.1), transparent 28%),
        linear-gradient(180deg, rgba(13, 27, 45, 0.64), rgba(7, 17, 31, 0.82));
}

.faq-list {
    display: grid;
    gap: 14px;
    max-width: 860px;
    margin: 0 auto;
}

.faq-list summary {
    cursor: pointer;
    color: var(--text);
    font-weight: 900;
}

.faq-list p {
    margin: 14px 0 0;
}

.contacts-section {
    color: #ffffff;
    background:
        radial-gradient(circle at 12% 10%, rgba(33, 212, 253, 0.2), transparent 28%),
        linear-gradient(135deg, #07111f, #10243d);
}

.contact-card {
    padding: 34px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 36px;
    background: rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow);
    backdrop-filter: blur(20px);
}

.contact-card p,
.contact-list span {
    color: #c8d6ea;
}

.contact-list {
    display: grid;
    gap: 12px;
    padding: 0;
    margin: 28px 0 0;
    list-style: none;
}

.contact-list li {
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 16px;
}

.contact-list a,
.contact-list b {
    color: #ffffff;
}

.form {
    display: grid;
    gap: 16px;
    padding: 24px;
    border-radius: 28px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.08);
    color: var(--text);
    backdrop-filter: blur(18px);
}

.form label {
    display: grid;
    gap: 8px;
    color: #c8d6ea;
    font-size: 0.95rem;
    font-weight: 800;
}

.form input,
.form textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 14px 16px;
    outline: none;
    color: var(--text);
    background: rgba(7, 17, 31, 0.55);
    resize: vertical;
}

.form input:focus,
.form textarea:focus {
    border-color: rgba(47, 128, 237, 0.55);
    box-shadow: 0 0 0 4px rgba(47, 128, 237, 0.12);
}

.site-footer {
    padding: 22px 0;
    color: #c8d6ea;
    background: #050b14;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.site-footer p {
    margin: 0;
}

@media (max-width: 980px) {
    .hero-grid,
    .service-grid,
    .split,
    .contact-card {
        grid-template-columns: 1fr;
    }

    .cards {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .nav {
        display: none;
    }
}

@media (max-width: 640px) {
    .container {
        width: min(100% - 28px, 1180px);
    }

    .header-grid,
    .footer-grid {
        min-height: 72px;
    }

    .header-action {
        display: none;
    }

    .hero {
        padding: 72px 0 62px;
    }

    .section {
        padding: 64px 0;
    }

    .cards,
    .metric-grid {
        grid-template-columns: 1fr;
    }

    .card {
        min-height: auto;
    }

    .contact-card {
        padding: 20px;
        border-radius: 26px;
    }

    .contact-list li {
        grid-template-columns: 1fr;
        gap: 2px;
    }
}