:root {
    --black: #050505;
    --dark: #0d0d0d;
    --card: #111111;
    --border: #242424;
    --white: #ffffff;
    --grey: #a0a0a0;
    --light-grey: #d6d6d6;

    --radius: 18px;
    --transition: 0.25s ease;
}


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


html {
    scroll-behavior: smooth;
}


body {
    background: var(--black);
    color: var(--white);
    font-family:
        Inter,
        Segoe UI,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        sans-serif;

    line-height: 1.6;
}


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


p {
    color: var(--grey);
}





/* =====================
   NAVBAR
===================== */


.navbar {

    position: sticky;
    top: 0;

    z-index: 100;

    background: rgba(5,5,5,0.85);

    backdrop-filter: blur(14px);

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

}


.nav-container {

    max-width: 1200px;

    margin: auto;

    padding:
        20px 30px;

    display: flex;

    justify-content: space-between;

    align-items: center;

}



.logo {

    font-size: 1.35rem;

    font-weight: 700;

    letter-spacing: -0.5px;

}



nav {

    display: flex;

    gap: 28px;

}



nav a {

    color: var(--grey);

    font-size: 0.95rem;

    transition: var(--transition);

}



nav a:hover {

    color: var(--white);

}






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


.hero {

    min-height: 90vh;

    max-width: 1200px;

    margin: auto;

    padding:
        100px 30px;

    display: flex;

    flex-direction: column;

    align-items: center;

    justify-content: center;

    text-align: center;

    gap: 70px;

}



.hero h1 {

    font-size:

        clamp(4rem, 10vw, 7rem);

    letter-spacing:

        -5px;

    line-height: 1;

}



.hero p {

    max-width: 650px;

    margin: 30px auto;

    font-size: 1.25rem;

}



.hero-buttons {

    display: flex;

    justify-content: center;

    gap: 15px;

    flex-wrap: wrap;

}






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


.btn {

    display: inline-flex;

    align-items: center;

    justify-content: center;

    padding:

        14px 30px;

    border-radius:

        999px;

    font-weight: 600;

    transition:

        transform var(--transition),
        background var(--transition),
        border var(--transition);

}



.btn:hover {

    transform:

        translateY(-3px);

}



.primary {

    background: var(--white);

    color: var(--black);

}



.primary:hover {

    background:

        var(--light-grey);

}



.secondary {

    border:

        1px solid var(--border);

    background:

        transparent;

}



.secondary:hover {

    border-color:

        var(--white);

}







/* =====================
   APP MOCKUP
===================== */


.app-preview {

    width:

        min(800px, 90vw);

    background:

        var(--card);

    border:

        1px solid var(--border);

    border-radius:

        var(--radius);

    overflow:

        hidden;

    box-shadow:

        0 30px 80px rgba(0,0,0,0.5);

}



.window-bar {

    height:

        45px;

    border-bottom:

        1px solid var(--border);

    display:

        flex;

    align-items:

        center;

    gap:

        8px;

    padding-left:

        18px;

}



.window-bar span {

    width:

        10px;

    height:

        10px;

    border-radius:

        50%;

    background:

        #555;

}



.dashboard {

    padding:

        40px;

}



.dashboard-header {

    font-size:

        1.3rem;

    font-weight:

        600;

}



.upload-box {

    margin:

        35px 0;

    padding:

        50px;

    border:

        1px dashed #444;

    border-radius:

        var(--radius);

}



.upload-icon {

    font-size:

        3rem;

}



.platform-row {

    display:

        flex;

    gap:

        15px;

}



.mini-card {

    padding:

        15px 25px;

    border:

        1px solid var(--border);

    border-radius:

        12px;

}







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


.section {

    max-width:

        1200px;

    margin:

        auto;

    padding:

        100px 30px;

}



.section h2 {

    text-align:

        center;

    font-size:

        2.8rem;

    letter-spacing:

        -1px;

    margin-bottom:

        20px;

}



.section-description {

    max-width:

        650px;

    text-align:

        center;

    margin:

        0 auto 50px;

}






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


.platform-grid,
.feature-grid {

    display:

        grid;

    grid-template-columns:

        repeat(auto-fit,minmax(260px,1fr));

    gap:

        25px;

}



.card {

    background:

        var(--card);

    border:

        1px solid var(--border);

    padding:

        30px;

    border-radius:

        var(--radius);

    transition:

        transform var(--transition),
        border var(--transition);

}



.card:hover {

    transform:

        translateY(-6px);

    border-color:

        #555;

}



.card h3 {

    margin-bottom:

        10px;

}



.icon-box {

    width:

        50px;

    height:

        50px;

    border:

        1px solid var(--border);

    display:

        flex;

    align-items:

        center;

    justify-content:

        center;

    border-radius:

        12px;

    margin-bottom:

        20px;

    font-weight:

        700;

}







/* =====================
   WORKFLOW
===================== */


.steps {

    display:

        grid;

    grid-template-columns:

        repeat(auto-fit,minmax(240px,1fr));

    gap:

        30px;

}



.step {

    text-align:

        center;

}



.step span {

    font-size:

        3rem;

    font-weight:

        700;

    color:

        #444;

}






/* =====================
   DOWNLOAD
===================== */


.download-section {

    margin:

        80px auto;

    max-width:

        900px;

    padding:

        70px 30px;

    text-align:

        center;

    border:

        1px solid var(--border);

    border-radius:

        var(--radius);

    background:

        var(--card);

}



.download-section h2 {

    font-size:

        2.5rem;

}



.version {

    margin:

        15px;

}






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


footer {

    border-top:

        1px solid var(--border);

    padding:

        50px 30px;

}



.footer-content {

    max-width:

        1200px;

    margin:

        auto;

    display:

        flex;

    justify-content:

        space-between;

    gap:

        30px;

}



.footer-links {

    display:

        flex;

    gap:

        20px;

}



.footer-links a {

    color:

        var(--grey);

}



.footer-links a:hover {

    color:

        var(--white);

}



.copyright {

    max-width:

        1200px;

    margin:

        30px auto 0;

    color:

        #666;

}







/* =====================
   LEGAL PAGES
===================== */


.page {

    max-width:

        850px;

    margin:

        auto;

    padding:

        120px 30px;

}



.page h1 {

    font-size:

        4rem;

    margin-bottom:

        40px;

}



.page h2 {

    margin-top:

        45px;

    margin-bottom:

        15px;

}



.page p {

    margin-bottom:

        20px;

}






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


@media(max-width:700px) {


    nav {

        display:

            none;

    }


    .hero {

        padding-top:

            70px;

    }


    .dashboard {

        padding:

            25px;

    }


    .footer-content {

        flex-direction:

            column;

    }


    .footer-links {

        flex-direction:

            column;

    }


}