:root {
    --background: #f5f7fb;
    --surface: rgba(255, 255, 255, 0.76);
    --surface-solid: #ffffff;
    --surface-muted: #eef2f8;
    --text-primary: #121722;
    --text-secondary: #657084;
    --text-soft: #8b95a7;

    --accent: #2563eb;
    --accent-dark: #1d4ed8;
    --accent-soft: rgba(37, 99, 235, 0.12);

    --success: #16a34a;
    --success-soft: rgba(22, 163, 74, 0.12);

    --border: rgba(18, 23, 34, 0.08);
    --border-strong: rgba(18, 23, 34, 0.14);

    --shadow-sm:
        0 10px 30px rgba(22, 31, 52, 0.06);

    --shadow-md:
        0 18px 50px rgba(22, 31, 52, 0.10);

    --shadow-lg:
        0 30px 80px rgba(22, 31, 52, 0.14);

    --radius-sm: 14px;
    --radius-md: 22px;
    --radius-lg: 32px;
    --radius-pill: 999px;

    --container: 1180px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --background: #070a10;
        --surface: rgba(20, 26, 38, 0.76);
        --surface-solid: #111722;
        --surface-muted: #0d131e;
        --text-primary: #f7f9fc;
        --text-secondary: #a7b0c0;
        --text-soft: #798395;

        --accent: #5b8cff;
        --accent-dark: #7aa2ff;
        --accent-soft: rgba(91, 140, 255, 0.16);

        --success: #4ade80;
        --success-soft: rgba(74, 222, 128, 0.14);

        --border: rgba(255, 255, 255, 0.08);
        --border-strong: rgba(255, 255, 255, 0.14);

        --shadow-sm:
            0 10px 30px rgba(0, 0, 0, 0.22);

        --shadow-md:
            0 18px 50px rgba(0, 0, 0, 0.32);

        --shadow-lg:
            0 30px 80px rgba(0, 0, 0, 0.42);
    }
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--text-primary);
    background:
        radial-gradient(
            circle at top left,
            rgba(37, 99, 235, 0.13),
            transparent 34%
        ),
        radial-gradient(
            circle at top right,
            rgba(99, 102, 241, 0.10),
            transparent 30%
        ),
        var(--background);

    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "SF Pro Display",
        "SF Pro Text",
        "Segoe UI",
        sans-serif;

    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img {
    max-width: 100%;
}

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

button,
input,
textarea,
select {
    font: inherit;
}

.container {
    width: min(
        calc(100% - 40px),
        var(--container)
    );

    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;

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

    background:
        color-mix(
            in srgb,
            var(--background) 78%,
            transparent
        );

    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 76px;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.brand-icon {
    display: inline-grid;
    place-items: center;

    width: 40px;
    height: 40px;

    color: #ffffff;
    background:
        linear-gradient(
            145deg,
            #5f8cff,
            #2558dc
        );

    border-radius: 13px;
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.35),
        0 8px 20px rgba(37, 99, 235, 0.28);

    font-size: 19px;
}

.brand-name {
    font-size: 20px;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.site-nav a {
    padding: 9px 14px;
    color: var(--text-secondary);
    border-radius: var(--radius-pill);
    font-size: 14px;
    font-weight: 650;
    transition:
        background-color 160ms ease,
        color 160ms ease,
        transform 160ms ease;
}

.site-nav a:hover {
    color: var(--text-primary);
    background: var(--surface);
    transform: translateY(-1px);
}

.site-nav a.active {
    color: var(--accent);
    background: var(--accent-soft);
}

.hero {
    padding: 96px 0 70px;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(340px, 0.85fr);
    align-items: center;
    gap: 72px;
}

.hero-content {
    max-width: 720px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;

    margin-bottom: 18px;
    padding: 7px 12px;

    color: var(--accent);
    background: var(--accent-soft);
    border: 1px solid color-mix(
        in srgb,
        var(--accent) 20%,
        transparent
    );

    border-radius: var(--radius-pill);

    font-size: 13px;
    font-weight: 750;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.split-grid h2,
.cta-card h2,
.page-hero h1 {
    margin: 0;
    letter-spacing: -0.045em;
    line-height: 1.06;
}

.hero h1 {
    max-width: 760px;
    font-size: clamp(46px, 7vw, 78px);
}

.hero-description {
    max-width: 660px;
    margin: 26px 0 0;
    color: var(--text-secondary);
    font-size: clamp(18px, 2.2vw, 22px);
    line-height: 1.55;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 34px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-height: 48px;
    padding: 12px 20px;

    border-radius: 15px;

    font-size: 15px;
    font-weight: 750;

    transition:
        transform 160ms ease,
        box-shadow 160ms ease,
        background-color 160ms ease,
        border-color 160ms ease;
}

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

.button-primary {
    color: #ffffff;
    background:
        linear-gradient(
            145deg,
            var(--accent),
            var(--accent-dark)
        );

    box-shadow:
        0 14px 30px rgba(37, 99, 235, 0.24);
}

.button-primary,
.button-primary:visited,
.button-primary:hover,
.button-primary:active {
    color: #ffffff !important;
}

.button-primary:hover {
    box-shadow:
        0 18px 34px rgba(37, 99, 235, 0.30);
}

.button-secondary {
    color: var(--text-primary);
    background: var(--surface);
    border: 1px solid var(--border-strong);
    box-shadow: var(--shadow-sm);
}

.hero-note {
    margin: 16px 0 0;
    color: var(--text-soft);
    font-size: 13px;
}

.hero-visual {
    position: relative;
}

.hero-visual::before {
    content: "";
    position: absolute;
    inset: 10% -4% -10% 8%;
    z-index: -1;

    background:
        radial-gradient(
            circle,
            rgba(37, 99, 235, 0.22),
            transparent 66%
        );

    filter: blur(10px);
}

.device-card {
    position: relative;
    overflow: hidden;

    padding: 22px;

    background:
        linear-gradient(
            145deg,
            color-mix(
                in srgb,
                var(--surface-solid) 90%,
                transparent
            ),
            color-mix(
                in srgb,
                var(--surface-muted) 94%,
                transparent
            )
        );

    border: 1px solid var(--border-strong);
    border-radius: 34px;

    box-shadow: var(--shadow-lg);

    transform:
        perspective(1000px)
        rotateY(-6deg)
        rotateX(2deg);
}

.device-card::after {
    content: "";
    position: absolute;
    inset: 0;

    background:
        linear-gradient(
            135deg,
            rgba(255, 255, 255, 0.24),
            transparent 24%,
            transparent 72%,
            rgba(37, 99, 235, 0.06)
        );

    pointer-events: none;
}

.device-top {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 22px;
}

.device-top > div:last-child {
    display: flex;
    flex-direction: column;
}

.device-top span {
    color: var(--text-secondary);
    font-size: 13px;
}

.app-symbol {
    display: grid;
    place-items: center;

    width: 54px;
    height: 54px;

    color: #ffffff;
    background:
        linear-gradient(
            145deg,
            #6b92ff,
            #2250d2
        );

    border-radius: 18px;
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.32),
        0 10px 26px rgba(37, 99, 235, 0.26);

    font-size: 24px;
    font-weight: 850;
}

.status-card {
    display: flex;
    align-items: center;
    gap: 14px;

    margin-bottom: 18px;
    padding: 18px;

    background: var(--success-soft);
    border: 1px solid color-mix(
        in srgb,
        var(--success) 24%,
        transparent
    );

    border-radius: 18px;
}

.status-card > div:last-child {
    display: flex;
    flex-direction: column;
}

.status-card span {
    color: var(--text-secondary);
    font-size: 13px;
}

.status-icon {
    display: grid;
    place-items: center;

    width: 42px;
    height: 42px;

    color: #ffffff;
    background: var(--success);
    border-radius: 14px;

    font-weight: 850;
}

.feature-row,
.info-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;

    padding: 15px 0;

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

.feature-row:last-child,
.info-row:last-of-type {
    border-bottom: 0;
}

.feature-row span,
.info-row span {
    color: var(--text-secondary);
}

.feature-row strong,
.info-row strong {
    text-align: right;
}

.section {
    padding: 84px 0;
}

.section-muted {
    background:
        linear-gradient(
            180deg,
            transparent,
            color-mix(
                in srgb,
                var(--surface-muted) 62%,
                transparent
            ),
            transparent
        );
}

.section-heading {
    max-width: 760px;
    margin-bottom: 36px;
}

.section-heading h2,
.split-grid h2,
.cta-card h2 {
    font-size: clamp(36px, 5vw, 56px);
}

.section-heading p,
.split-grid p,
.cta-card p,
.page-hero p {
    color: var(--text-secondary);
    font-size: 18px;
}

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

.feature-card,
.info-card,
.content-card,
.cta-card {
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.feature-card {
    padding: 24px;
    border-radius: var(--radius-md);
    transition:
        transform 180ms ease,
        box-shadow 180ms ease,
        border-color 180ms ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-strong);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    display: inline-grid;
    place-items: center;

    width: 44px;
    height: 44px;

    margin-bottom: 22px;

    color: var(--accent);
    background: var(--accent-soft);
    border-radius: 14px;

    font-size: 13px;
    font-weight: 850;
}

.feature-card h3 {
    margin: 0 0 10px;
    font-size: 21px;
    letter-spacing: -0.025em;
}

.feature-card p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 15px;
}

.split-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.8fr);
    align-items: start;
    gap: 56px;
}

.info-card {
    padding: 26px;
    border-radius: var(--radius-md);
}

.small-text {
    margin: 18px 0 0;
    color: var(--text-secondary);
    font-size: 14px;
}

.text-link {
    display: inline-flex;
    margin-top: 18px;
    color: var(--accent);
    font-weight: 750;
}

.text-link:hover {
    text-decoration: underline;
}

.cta-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;

    padding: 34px;

    border-radius: var(--radius-lg);
}

.cta-card p {
    max-width: 680px;
    margin-bottom: 0;
}

.site-footer {
    margin-top: 44px;
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 32px;
    padding: 44px 0 28px;
}

.footer-brand {
    margin-bottom: 12px;
}

.footer-grid p {
    margin: 0;
    color: var(--text-secondary);
}

.footer-links {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 650;
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-bottom {
    padding: 20px 0 34px;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    margin: 0;
    color: var(--text-soft);
    font-size: 13px;
}

.page-hero {
    padding: 84px 0 42px;
}

.page-hero .container {
    max-width: 860px;
}

.page-hero h1 {
    font-size: clamp(44px, 7vw, 72px);
}

.page-hero p {
    max-width: 760px;
    margin-top: 22px;
}

.content-section {
    padding: 20px 0 84px;
}

.content-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
    max-width: 860px;
}

.content-card {
    padding: 28px;
    border-radius: var(--radius-md);
}

.content-card h2 {
    margin: 0 0 14px;
    font-size: 28px;
    letter-spacing: -0.03em;
}

.content-card h3 {
    margin: 24px 0 8px;
    font-size: 19px;
}

.content-card p,
.content-card li {
    color: var(--text-secondary);
}

.content-card ul,
.content-card ol {
    padding-left: 22px;
}

.content-card a {
    color: var(--accent);
    font-weight: 700;
}

.content-card a:hover {
    text-decoration: underline;
}

.faq-list {
    display: grid;
    gap: 12px;
}

details {
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 17px;
}

summary {
    cursor: pointer;
    padding: 18px 20px;
    font-weight: 750;
    list-style: none;
}

summary::-webkit-details-marker {
    display: none;
}

details p {
    margin: 0;
    padding: 0 20px 20px;
    color: var(--text-secondary);
}

.contact-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;

    margin-top: 18px;
    padding: 20px;

    background: var(--accent-soft);
    border: 1px solid color-mix(
        in srgb,
        var(--accent) 20%,
        transparent
    );

    border-radius: 18px;
}

.contact-box p {
    margin: 0;
}

.legal-meta {
    margin-top: 20px;
    color: var(--text-soft);
    font-size: 13px;
}

.notice {
    padding: 18px 20px;

    color: var(--text-primary);
    background: var(--accent-soft);
    border: 1px solid color-mix(
        in srgb,
        var(--accent) 22%,
        transparent
    );

    border-radius: 17px;
}

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

    .hero-grid {
        gap: 44px;
    }

    .hero-content {
        max-width: none;
    }

    .hero-visual {
        max-width: 620px;
    }

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

    .device-card {
        transform: none;
    }
}

@media (max-width: 720px) {
    .container {
        width: min(
            calc(100% - 28px),
            var(--container)
        );
    }

    .nav-wrapper {
        align-items: flex-start;
        flex-direction: column;
        padding: 14px 0;
    }

    .site-nav {
        width: 100%;
        overflow-x: auto;
        padding-bottom: 2px;
        flex-wrap: nowrap;
    }

    .site-nav a {
        white-space: nowrap;
    }

    .hero {
        padding: 64px 0 46px;
    }

    .hero h1 {
        font-size: clamp(42px, 13vw, 62px);
    }

    .section {
        padding: 62px 0;
    }

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

    .cta-card {
        align-items: flex-start;
        flex-direction: column;
        padding: 26px;
    }

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

    .footer-links {
        flex-direction: column;
        gap: 10px;
    }

    .page-hero {
        padding: 58px 0 30px;
    }

    .content-card {
        padding: 22px;
    }
}

@media (max-width: 520px) {
    .hero-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .button {
        width: 100%;
    }

    .device-card {
        padding: 18px;
        border-radius: 26px;
    }

    .feature-row,
    .info-row {
        align-items: flex-start;
        flex-direction: column;
        gap: 4px;
    }

    .feature-row strong,
    .info-row strong {
        text-align: left;
    }
}