*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --navy-deep: #0a1a40;
    --navy-mid: #142e7a;
    --navy-light: #1f4d8c;
    --accent: #4a90d9;
    --accent-light: #6db3f8;
    --white: #ffffff;
    --white-60: rgba(255, 255, 255, 0.6);
    --white-40: rgba(255, 255, 255, 0.4);
    --white-12: rgba(255, 255, 255, 0.12);
    --white-06: rgba(255, 255, 255, 0.06);
    --radius: 16px;
    --radius-sm: 10px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--navy-deep);
    color: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    color: var(--accent-light);
    text-decoration: none;
    transition: opacity 0.2s;
}

a:hover {
    opacity: 0.8;
}

/* ---- Header ---- */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 26, 64, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--white-06);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--white);
    font-weight: 700;
    font-size: 18px;
}

.logo img {
    border-radius: 8px;
}

nav {
    display: flex;
    gap: 28px;
}

nav a {
    color: var(--white-60);
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}

nav a:hover {
    color: var(--white);
    opacity: 1;
}

/* ---- Hero ---- */

.hero {
    padding: 160px 0 100px;
    text-align: center;
    background: linear-gradient(170deg, var(--navy-deep) 0%, var(--navy-mid) 50%, var(--navy-light) 100%);
}

.hero-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-icon {
    position: relative;
    width: 140px;
    height: 140px;
    border-radius: 32px;
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.4),
        0 0 80px rgba(74, 144, 217, 0.3);
    margin-bottom: 32px;
}

.hero h1 {
    font-size: 56px;
    font-weight: 800;
    letter-spacing: -1.5px;
    line-height: 1.1;
    margin-bottom: 12px;
}

.tagline {
    font-size: 20px;
    color: var(--white-60);
    font-weight: 500;
    margin-bottom: 20px;
}

.subtitle {
    font-size: 17px;
    color: var(--white-40);
    max-width: 520px;
    line-height: 1.7;
    margin-bottom: 40px;
}

.coming-soon {
    display: inline-block;
    padding: 14px 48px;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--white);
    border: 2px solid var(--white-40);
    border-radius: 100px;
    background: var(--white-06);
    box-shadow: 0 0 30px rgba(74, 144, 217, 0.15);
    transition: border-color 0.3s, box-shadow 0.3s;
}

.coming-soon:hover {
    border-color: var(--accent-light);
    box-shadow: 0 0 40px rgba(109, 179, 248, 0.25);
}

.platforms {
    margin-top: 16px;
    font-size: 13px;
    color: var(--white-40);
    font-weight: 500;
}

/* ---- Features ---- */

.features {
    padding: 100px 0;
    background: var(--navy-deep);
}

.features h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 56px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--white-06);
    border: 1px solid var(--white-06);
    border-radius: var(--radius);
    padding: 36px 28px;
    transition: background 0.25s, transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}

.feature-card:hover {
    background: var(--white-12);
    border-color: rgba(74, 144, 217, 0.3);
    box-shadow: 0 8px 32px rgba(74, 144, 217, 0.1);
    transform: translateY(-4px);
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent), var(--navy-mid));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--white);
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 14px;
    color: var(--white-60);
    line-height: 1.7;
}

/* ---- Screenshots ---- */

.screenshots {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--navy-deep) 0%, rgba(20, 46, 122, 0.4) 50%, var(--navy-deep) 100%);
    overflow: hidden;
}

.screenshots h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 56px;
}

.screenshots-track {
    display: flex;
    gap: 28px;
    justify-content: center;
    flex-wrap: wrap;
}

.screenshot-card {
    flex: 0 0 auto;
    width: 200px;
    text-align: center;
}

.screenshot-frame {
    background: var(--white-06);
    border: 1px solid var(--white-12);
    border-radius: 20px;
    padding: 8px;
    height: 400px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s, box-shadow 0.3s;
    overflow: hidden;
}

.screenshot-frame:hover {
    transform: translateY(-6px);
    box-shadow:
        0 20px 50px rgba(0, 0, 0, 0.4),
        0 0 40px rgba(74, 144, 217, 0.12);
}

.screenshot-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
    border-radius: 14px;
    display: block;
}

.screenshot-caption {
    margin-top: 14px;
    font-size: 14px;
    font-weight: 600;
    color: var(--white-60);
}

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

.cta {
    padding: 80px 0;
    background: linear-gradient(170deg, var(--navy-mid) 0%, var(--navy-deep) 100%);
    text-align: center;
}

.cta-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.cta h2 {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
}

.cta p {
    font-size: 17px;
    color: var(--white-60);
    margin-bottom: 32px;
}

/* ---- Footer ---- */

.site-footer {
    padding: 40px 0;
    border-top: 1px solid var(--white-06);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--white-40);
    font-size: 14px;
    font-weight: 500;
}

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

.copyright {
    font-size: 13px;
    color: var(--white-40);
}

/* ---- Privacy Page ---- */

.privacy-page {
    padding: 120px 0 80px;
    min-height: 100vh;
}

.privacy-page h1 {
    font-size: 40px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 8px;
}

.privacy-page .effective-date {
    color: var(--white-40);
    font-size: 14px;
    margin-bottom: 48px;
}

.privacy-page h2 {
    font-size: 22px;
    font-weight: 600;
    margin-top: 40px;
    margin-bottom: 16px;
}

.privacy-page p,
.privacy-page li {
    color: var(--white-60);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 12px;
}

.privacy-page ul {
    list-style: none;
    padding: 0;
    margin-bottom: 12px;
}

.privacy-page li::before {
    content: "—";
    margin-right: 10px;
    color: var(--white-40);
}

.privacy-page a {
    color: var(--accent-light);
}

/* ---- Responsive ---- */

@media (max-width: 768px) {
    .hero {
        padding: 130px 0 70px;
    }

    .hero h1 {
        font-size: 40px;
    }

    .tagline {
        font-size: 17px;
    }

    .subtitle {
        font-size: 15px;
    }

    .features h2,
    .screenshots h2,
    .cta h2 {
        font-size: 28px;
    }

    .feature-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .feature-card {
        padding: 28px 24px;
    }

    .screenshots {
        padding: 70px 0;
    }

    .screenshots-track {
        flex-wrap: nowrap;
        justify-content: flex-start;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        padding: 0 24px 20px;
        margin: 0 -24px;
        scrollbar-width: none;
    }

    .screenshots-track::-webkit-scrollbar {
        display: none;
    }

    .screenshot-card {
        width: 180px;
        scroll-snap-align: center;
    }

    .screenshot-frame {
        height: 340px;
    }

    .footer-inner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .privacy-page h1 {
        font-size: 30px;
    }
}

@media (max-width: 480px) {
    nav {
        gap: 14px;
    }

    nav a {
        font-size: 13px;
    }

    .hero-icon {
        width: 100px;
        height: 100px;
        border-radius: 24px;
    }

    .hero h1 {
        font-size: 34px;
    }

    .coming-soon {
        padding: 12px 36px;
        font-size: 16px;
    }

    .screenshot-card {
        width: 160px;
    }

    .screenshot-frame {
        height: 300px;
    }
}