:root {
    --background: #08111f;
    --background-light: #0d1a2d;

    --surface: #111f33;
    --surface-light: #162941;

    --text: #f5f8fc;
    --text-soft: #a9b8cc;

    --primary: #2aa8ff;
    --primary-light: #5bc8ff;

    --border: rgba(255, 255, 255, 0.08);

    --container: 1200px;

    --radius: 20px;
}


/* =========================
   RESET
========================= */

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

section[id] {
    scroll-margin-top: 92px;
}

body {
    margin: 0;

    font-family:
        Inter,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;

    background:
        radial-gradient(
            circle at top right,
            rgba(42, 168, 255, 0.08),
            transparent 35%
        ),
        var(--background);

    color: var(--text);

    line-height: 1.6;
}

a {
    color: inherit;
}

:focus-visible {
    outline: 3px solid var(--primary-light);
    outline-offset: 4px;
}

img {
    max-width: 100%;
}


/* =========================
   CONTAINER
========================= */

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


/* =========================
   HEADER
========================= */

.header {
    position: sticky;
    top: 0;

    z-index: 100;

    backdrop-filter: blur(16px);

    background:
        rgba(8, 17, 31, 0.85);

    border-bottom:
        1px solid var(--border);
}

.header-content {
    min-height: 76px;

    display: flex;
    align-items: center;
    justify-content: space-between;
}


/* =========================
   BRAND
========================= */

.brand {
    display: flex;
    align-items: center;

    gap: 12px;
    padding: 5px 10px;

    border-radius: 6px;
    background-color: #f5f8fc;

    text-decoration: none;
}

.brand-logo {
    display: block;
    width: auto;
    height: 46px;
    max-width: 220px;
    object-fit: contain;
}

/* =========================
   NAV
========================= */

.nav {
    display: flex;
    align-items: center;

    gap: 30px;
}

.nav a {
    text-decoration: none;

    color: var(--text-soft);

    font-size: 0.95rem;

    transition: 0.2s ease;
}

.nav a:hover {
    color: var(--text);
}

.nav-button {
    padding: 10px 18px;

    border-radius: 10px;

    border:
        1px solid
        rgba(42, 168, 255, 0.35);

    color: var(--primary-light) !important;
}


/* =========================
   MOBILE MENU
========================= */

.menu-button {
    display: none;

    min-width: 44px;
    min-height: 44px;

    background: none;
    border: none;

    color: white;

    font-size: 1.6rem;

    cursor: pointer;
}

.menu-button:focus-visible,
.nav a:focus-visible {
    outline-offset: 3px;
}


/* =========================
   HERO
========================= */

.hero {
    padding:
        110px 0
        100px;
}

.hero-content {
    display: grid;

    grid-template-columns:
        minmax(0, 1.3fr)
        minmax(320px, 0.7fr);

    gap: 70px;

    align-items: center;
}

.eyebrow {
    display: inline-block;

    margin-bottom: 16px;

    font-size: 0.85rem;
    font-weight: 700;

    letter-spacing: 0.12em;

    text-transform: uppercase;

    color: var(--primary-light);
}

.hero h1 {
    margin: 0;

    max-width: 850px;

    font-size:
        clamp(
            2.7rem,
            6vw,
            5rem
        );

    line-height: 1.05;

    letter-spacing: -0.04em;
}

.hero-text > p {
    max-width: 750px;

    margin:
        28px 0
        34px;

    color: var(--text-soft);

    font-size: 1.15rem;
}


/* =========================
   BUTTONS
========================= */

.hero-actions {
    display: flex;
    flex-wrap: wrap;

    gap: 14px;
}

.button {
    display: inline-flex;

    align-items: center;
    justify-content: center;

    min-height: 52px;

    padding:
        0 22px;

    border-radius: 12px;

    text-decoration: none;

    font-weight: 700;

    transition:
        transform 0.2s ease,
        background 0.2s ease;
}

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

.button-primary {
    background:
        linear-gradient(
            135deg,
            var(--primary),
            #506bff
        );

    color: white;

    box-shadow:
        0 12px 40px
        rgba(42, 168, 255, 0.2);
}

.button-secondary {
    border:
        1px solid
        var(--border);

    background:
        rgba(255, 255, 255, 0.03);
}


/* =========================
   HERO CARD
========================= */

.hero-card {
    position: relative;

    padding: 34px;

    border:
        1px solid
        rgba(255, 255, 255, 0.1);

    border-radius: 24px;

    background:
        linear-gradient(
            160deg,
            rgba(255, 255, 255, 0.08),
            rgba(255, 255, 255, 0.02)
        );

    box-shadow:
        0 30px 80px
        rgba(0, 0, 0, 0.25);
}

.hero-card::before {
    content: "";

    position: absolute;

    inset: -1px;

    border-radius: inherit;

    padding: 1px;

    background:
        linear-gradient(
            135deg,
            rgba(42, 168, 255, 0.5),
            transparent 40%
        );

    pointer-events: none;
}

.hero-card-label {
    color: var(--primary-light);

    font-size: 0.85rem;
    font-weight: 700;

    letter-spacing: 0.1em;

    text-transform: uppercase;
}

.hero-card h2 {
    margin:
        16px 0
        12px;

    font-size: 1.75rem;
}

.hero-card > p {
    color: var(--text-soft);
}

.hero-card-grid {
    display: grid;

    grid-template-columns:
        repeat(2, 1fr);

    gap: 14px;

    margin-top: 28px;
}

.hero-card-grid div {
    padding: 18px;

    background:
        rgba(255, 255, 255, 0.04);

    border:
        1px solid
        var(--border);

    border-radius: 14px;
}

.hero-card-grid strong {
    display: block;

    margin-bottom: 4px;

    color: var(--primary-light);
}

.hero-card-grid span {
    color: var(--text-soft);

    font-size: 0.85rem;
}


/* =========================
   SECTIONS
========================= */

.section {
    padding: 100px 0;
}

.section-heading {
    max-width: 760px;

    margin-bottom: 50px;
}

.section-heading h2,
.ai-content h2,
.about-grid h2,
.contact-box h2 {
    margin:
        0 0
        20px;

    font-size:
        clamp(
            2rem,
            4vw,
            3.3rem
        );

    line-height: 1.15;

    letter-spacing: -0.03em;
}

.section-heading p,
.ai-content p,
.about-text p,
.contact-box p {
    color: var(--text-soft);

    font-size: 1.05rem;
}


/* =========================
   CARDS
========================= */

.cards {
    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 20px;
}

.card {
    min-height: 260px;

    padding: 28px;

    border:
        1px solid
        var(--border);

    border-radius: var(--radius);

    background:
        rgba(255, 255, 255, 0.025);

    transition:
        transform 0.25s ease,
        border-color 0.25s ease,
        background 0.25s ease;
}

.card:hover {
    transform: translateY(-5px);

    border-color:
        rgba(42, 168, 255, 0.3);

    background:
        rgba(42, 168, 255, 0.04);
}

.card-number {
    margin-bottom: 30px;

    color: var(--primary-light);

    font-size: 0.8rem;
    font-weight: 700;
}

.card h3 {
    margin:
        0 0
        12px;

    font-size: 1.35rem;
}

.card p {
    margin: 0;

    color: var(--text-soft);
}


/* =========================
   AI SECTION
========================= */

.section-highlight {
    border-top:
        1px solid
        var(--border);

    border-bottom:
        1px solid
        var(--border);

    background:
        linear-gradient(
            135deg,
            rgba(42, 168, 255, 0.06),
            rgba(80, 107, 255, 0.03)
        );
}

.ai-grid {
    display: grid;

    grid-template-columns:
        1fr 1fr;

    gap: 80px;
}

.ai-list {
    display: flex;

    flex-direction: column;

    gap: 16px;
}

.ai-item {
    display: grid;

    grid-template-columns:
        50px 1fr;

    gap: 16px;

    padding: 24px;

    border:
        1px solid
        var(--border);

    border-radius: 16px;

    background:
        rgba(255, 255, 255, 0.025);
}

.ai-item > span {
    color: var(--primary-light);

    font-weight: 700;
}

.ai-item h3 {
    margin:
        0 0
        8px;
}

.ai-item p {
    margin: 0;

    color: var(--text-soft);
}


/* =========================
   ABOUT
========================= */

.about-grid {
    display: grid;

    grid-template-columns:
        0.8fr 1.2fr;

    gap: 80px;
}

.about-text p:first-child {
    margin-top: 0;
}


/* =========================
   CONTACT
========================= */

.contact-section {
    padding-top: 40px;
}

.contact-box {
    display: flex;

    justify-content: space-between;
    align-items: center;

    gap: 50px;

    padding: 50px;

    border:
        1px solid
        rgba(42, 168, 255, 0.25);

    border-radius: 24px;

    background:
        linear-gradient(
            135deg,
            rgba(42, 168, 255, 0.08),
            rgba(255, 255, 255, 0.02)
        );
}

.contact-box > div:first-child {
    max-width: 700px;
}

.contact-actions {
    display: flex;

    flex-direction: column;

    align-items: center;

    gap: 14px;
}

.contact-link {
    color: var(--text-soft);

    text-decoration: none;
}


/* =========================
   FOOTER
========================= */

.footer {
    margin-top: 80px;

    padding:
        38px 0;

    border-top:
        1px solid
        var(--border);
}

.footer-content {
    display: flex;

    justify-content: space-between;
    align-items: center;

    gap: 30px;
}

.footer-content div {
    display: flex;

    flex-direction: column;
}

.footer-content span,
.footer-content p {
    color: var(--text-soft);

    font-size: 0.9rem;
}


/* =========================
   RESPONSIVE
========================= */

@media (max-width: 900px) {

    .menu-button {
        display: block;
    }

    .nav {
        position: absolute;

        top: 100%;
        left: 0;
        right: 0;

        display: none;

        flex-direction: column;

        align-items: flex-start;

        padding: 24px;

        background:
            rgba(8, 17, 31, 0.98);

        border-bottom:
            1px solid
            var(--border);
    }

    .nav.active {
        display: flex;
    }

    .nav a {
        width: 100%;
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    .hero {
        padding-top: 80px;
    }

    .hero-content,
    .ai-grid,
    .about-grid {
        grid-template-columns: 1fr;
    }

    .hero-content,
    .ai-grid,
    .about-grid {
        gap: 50px;
    }

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

    .contact-box {
        flex-direction: column;
        align-items: flex-start;
    }

    .contact-actions {
        align-items: flex-start;
    }

}


@media (max-width: 600px) {

    .container {
        width:
            min(
                100% - 28px,
                var(--container)
            );
    }

    .hero {
        padding:
            65px 0
            75px;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .section {
        padding:
            75px 0;
    }

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

    .hero-card-grid {
        grid-template-columns: 1fr;
    }

    .contact-box {
        padding: 30px;
    }

    .footer-content {
        flex-direction: column;
        align-items: flex-start;
    }

}

@media (prefers-reduced-motion: reduce) {

    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

}