:root {

    --background: #050816;

    --background-soft: #0a1020;

    --surface: rgba(255,255,255,0.045);

    --surface-strong: rgba(255,255,255,0.065);

    --text: #f7f9ff;

    --text-soft: #aeb7cc;

    --muted: #78839a;

    --blue: #4f8cff;

    --blue-light: #79a7ff;

    --purple: #8b5cf6;

    --violet: #a78bfa;

    --border: rgba(255,255,255,0.085);

}


* {

    box-sizing: border-box;

    margin: 0;

    padding: 0;

}


html {

    scroll-behavior: smooth;

}


body {

    font-family:
        Arial,
        Helvetica,
        sans-serif;

    color: var(--text);

    line-height: 1.6;

    min-height: 100vh;

    background:

        radial-gradient(
            circle at 10% 5%,
            rgba(79,140,255,0.14),
            transparent 30%
        ),

        radial-gradient(
            circle at 88% 18%,
            rgba(139,92,246,0.13),
            transparent 28%
        ),

        radial-gradient(
            circle at 50% 75%,
            rgba(70,80,180,0.08),
            transparent 32%
        ),

        linear-gradient(
            135deg,
            #050816 0%,
            #080d1b 45%,
            #0a0d1c 100%
        );

    background-attachment: fixed;

}


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


.navbar {

    width: 100%;

    position: relative;

    z-index: 10;

    border-bottom:
        1px solid
        rgba(255,255,255,0.07);

    background:
        rgba(5,8,22,0.78);

    backdrop-filter:
        blur(18px);

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

}


.nav-container {

    width:
        min(
            1150px,
            calc(100% - 40px)
        );

    min-height: 74px;

    margin: auto;

    display: flex;

    align-items: center;

    justify-content: space-between;

    gap: 25px;

}


/* BRAND */


.brand {

    display: inline-flex;

    align-items: center;

    gap: 10px;

    color: white;

    text-decoration: none;

    flex-shrink: 0;

}


.brand-logo {

    width: 48px;

    height: 48px;

    display: block;

    object-fit: contain;

    object-position: center;

    border-radius: 11px;

    flex-shrink: 0;

}


.brand-name {

    display: block;

    color: #ffffff;

    font-size: 21px;

    line-height: 1;

    font-weight: 800;

    letter-spacing: -0.4px;

    white-space: nowrap;

}


/* NAV LINKS */


.nav-links {

    display: flex;

    align-items: center;

    gap: 21px;

}


.nav-links a {

    color: var(--text-soft);

    text-decoration: none;

    font-size: 14px;

    font-weight: 500;

    transition:
        color 0.2s ease;
}


.nav-links a:hover {

    color: white;

}


.nav-button {

    padding:
        10px
        17px;

    border-radius: 10px;

    background:
        linear-gradient(
            135deg,
            var(--blue),
            var(--purple)
        );

    color: white !important;

    font-weight: 700 !important;

    box-shadow:
        0 8px 25px
        rgba(79,140,255,0.18);

}


/* =========================
   COMMON
========================= */


.section {

    width:
        min(
            1150px,
            calc(100% - 40px)
        );

    margin: auto;

    padding: 100px 0;

}


.section-label,
.hero-label {

    color: var(--blue-light);

    font-size: 12px;

    font-weight: 800;

    letter-spacing: 2px;

}


.section-heading {

    max-width: 700px;

    margin-bottom: 45px;

}


.section-heading h2,
.about-content h2 {

    margin:
        10px 0
        15px;

    font-size:
        clamp(
            32px,
            5vw,
            48px
        );

    line-height: 1.15;

    letter-spacing: -1px;

}


.section-heading p,
.about-content p {

    color: var(--text-soft);

    font-size: 17px;

}


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


.hero {

    width:
        min(
            1150px,
            calc(100% - 40px)
        );

    min-height: 680px;

    margin: auto;

    padding: 90px 0;

    display: grid;

    grid-template-columns:
        1fr
        0.9fr;

    align-items: center;

    gap: 70px;

}


.hero-content {

    max-width: 650px;

}


.hero h1 {

    margin:
        15px 0
        22px;

    font-size:
        clamp(
            48px,
            7vw,
            76px
        );

    line-height: 1.02;

    letter-spacing: -3px;

}


.hero h1 span {

    display: block;

    background:
        linear-gradient(
            100deg,
            #76a5ff 0%,
            #8b5cf6 55%,
            #b39cff 100%
        );

    -webkit-background-clip: text;

    background-clip: text;

    color: transparent;

}


.hero p {

    max-width: 600px;

    color: var(--text-soft);

    font-size: 18px;

    line-height: 1.8;

}


.hero-buttons {

    display: flex;

    flex-wrap: wrap;

    gap: 14px;

    margin-top: 32px;

}


/* BUTTONS */


.btn {

    display: inline-flex;

    align-items: center;

    justify-content: center;

    padding:
        13px
        21px;

    border-radius: 11px;

    text-decoration: none;

    font-size: 14px;

    font-weight: 700;

}


.btn-primary {

    background:
        linear-gradient(
            135deg,
            var(--blue),
            var(--purple)
        );

    color: white;

    box-shadow:
        0 12px 30px
        rgba(79,140,255,0.18);

}


.btn-secondary {

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

    background:
        rgba(255,255,255,0.035);

    color: white;

}


/* =========================
   APP PREVIEW
========================= */


.hero-visual {

    display: flex;

    justify-content: center;

}


.app-preview {

    width:
        min(
            390px,
            100%
        );

    padding: 22px;

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

    border-radius: 28px;

    background:

        radial-gradient(
            circle at 80% 10%,
            rgba(139,92,246,0.12),
            transparent 30%
        ),

        radial-gradient(
            circle at 10% 90%,
            rgba(79,140,255,0.11),
            transparent 35%
        ),

        rgba(10,16,34,0.92);

    box-shadow:

        0 30px 80px
        rgba(0,0,0,0.38),

        0 0 60px
        rgba(79,140,255,0.06);

}


.preview-header {

    display: flex;

    align-items: center;

    justify-content: space-between;

    margin-bottom: 30px;

}


.preview-brand {

    display: flex;

    align-items: center;

    gap: 9px;

}


.preview-brand img {

    width: 35px;

    height: 35px;

    object-fit: contain;

    border-radius: 9px;

}


.preview-menu {

    color: var(--text-soft);

}


.preview-title small {

    color: var(--muted);

    font-size: 10px;

    letter-spacing: 1.5px;

}


.preview-title h2 {

    margin-top: 5px;

    font-size: 22px;

    line-height: 1.2;

}


.preview-grid {

    display: grid;

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

    gap: 12px;

    margin-top: 25px;

}


.preview-card {

    padding: 20px 15px;

    border:
        1px solid
        rgba(255,255,255,0.075);

    border-radius: 16px;

    background:
        rgba(255,255,255,0.035);

}


.preview-card span {

    display: block;

    font-size: 25px;

    margin-bottom: 12px;

}


.preview-card strong {

    display: block;

    font-size: 14px;

}


.preview-card small {

    color: var(--muted);

    font-size: 11px;

}


/* =========================
   FEATURES
========================= */


.feature-grid {

    display: grid;

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

    gap: 18px;

}


.feature-card {

    position: relative;

    overflow: hidden;

    padding: 28px;

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

    border-radius: 20px;

    background:

        linear-gradient(
            145deg,
            rgba(255,255,255,0.055),
            rgba(255,255,255,0.025)
        );

    box-shadow:
        0 15px 40px
        rgba(0,0,0,0.14);

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

}


.feature-card::before {

    content: "";

    position: absolute;

    width: 100px;

    height: 100px;

    top: -65px;

    right: -45px;

    border-radius: 50%;

    background:
        rgba(139,92,246,0.09);

    filter: blur(5px);

}


.feature-card:hover {

    transform:
        translateY(-5px);

    border-color:
        rgba(111,150,255,0.3);

    background:

        linear-gradient(
            145deg,
            rgba(79,140,255,0.075),
            rgba(139,92,246,0.055)
        );

}


.feature-icon {

    width: 48px;

    height: 48px;

    display: flex;

    align-items: center;

    justify-content: center;

    margin-bottom: 18px;

    border-radius: 14px;

    background:

        linear-gradient(
            135deg,
            rgba(79,140,255,0.16),
            rgba(139,92,246,0.16)
        );

    font-size: 22px;

}


.feature-card h3 {

    margin-bottom: 8px;

    font-size: 19px;

}


.feature-card p {

    color: var(--text-soft);

    font-size: 14px;

    line-height: 1.7;

}


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


.about-section {

    width:
        min(
            1150px,
            calc(100% - 40px)
        );

    margin: auto;

    padding: 90px 0;

    display: grid;

    grid-template-columns:
        0.8fr
        1.2fr;

    gap: 60px;

}


.about-content {

    max-width: 500px;

}


.about-grid {

    display: grid;

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

    gap: 15px;

}


.about-card {

    padding: 25px;

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

    border-radius: 18px;

    background:

        linear-gradient(
            145deg,
            rgba(255,255,255,0.05),
            rgba(255,255,255,0.022)
        );

}


.about-card span {

    color: var(--blue-light);

    font-size: 12px;

    font-weight: 800;

}


.about-card h3 {

    margin:
        20px 0
        8px;

    font-size: 18px;

}


.about-card p {

    color: var(--text-soft);

    font-size: 14px;

}


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


.download-section {

    width:
        min(
            1150px,
            calc(100% - 40px)
        );

    margin: auto;

    padding: 90px 0;

}


.download-card {

    min-height: 300px;

    padding: 55px;

    display: flex;

    align-items: center;

    justify-content: space-between;

    gap: 40px;

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

    border-radius: 28px;

    background:

        radial-gradient(
            circle at 85% 20%,
            rgba(139,92,246,0.15),
            transparent 35%
        ),

        radial-gradient(
            circle at 10% 80%,
            rgba(79,140,255,0.13),
            transparent 35%
        ),

        rgba(255,255,255,0.035);

    box-shadow:
        0 25px 70px
        rgba(0,0,0,0.2);

}


.download-content {

    max-width: 650px;

}


.download-content h2 {

    margin:
        10px 0
        12px;

    font-size:
        clamp(
            30px,
            5vw,
            46px
        );

}


.download-content p {

    color: var(--text-soft);

    margin-bottom: 25px;

}


.play-button {

    display: inline-flex;

    align-items: center;

    gap: 12px;

    padding:
        12px
        18px;

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

    border-radius: 12px;

    background: #080d1d;

    color: white;

    text-decoration: none;

}


.play-button small {

    display: block;

    color: var(--muted);

    font-size: 9px;

}


.play-button strong {

    display: block;

    font-size: 15px;

}


.play-icon {

    font-size: 20px;

}


.download-logo img {

    width: 135px;

    height: 135px;

    object-fit: contain;

    border-radius: 25px;

    filter:
        drop-shadow(
            0 20px 35px
            rgba(0,0,0,0.35)
        );

}


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


.footer {

    margin-top: 40px;

    border-top:
        1px solid
        rgba(255,255,255,0.07);

    background:

        linear-gradient(
            180deg,
            rgba(5,8,22,0.75),
            #040711
        );

}


.footer-container {

    width:
        min(
            1150px,
            calc(100% - 40px)
        );

    margin: auto;

    padding: 45px 0;

    display: flex;

    justify-content: space-between;

    gap: 30px;

}


.footer-brand p {

    color: var(--muted);

    margin-top: 12px;

    font-size: 13px;

}


.footer-logo .brand-logo {

    width: 45px;

    height: 45px;

}


.footer-links {

    display: flex;

    flex-wrap: wrap;

    gap: 20px;

    align-items: center;

}


.footer-links a {

    color: #8e98ad;

    text-decoration: none;

    font-size: 13px;

}


.footer-links a:hover {

    color: white;

}


.footer-bottom {

    padding: 20px;

    border-top:
        1px solid
        rgba(255,255,255,0.06);

    text-align: center;

    color: #697287;

    font-size: 12px;

}


/* =========================
   TABLET
========================= */


@media (max-width: 850px) {


    .nav-container {

        min-height: 70px;

    }


    .nav-links {

        gap: 14px;

    }


    .nav-links a {

        font-size: 13px;

    }


    .hero {

        grid-template-columns: 1fr;

        padding: 70px 0;

        gap: 50px;

    }


    .hero-content {

        max-width: 700px;

    }


    .hero-visual {

        justify-content: flex-start;

    }


    .feature-grid {

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

    }


    .about-section {

        grid-template-columns: 1fr;

    }


    .download-card {

        padding: 40px;

    }

}


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


@media (max-width: 650px) {


    .nav-container {

        width:
            min(
                100% - 28px,
                1150px
            );

    }


    .brand-logo {

        width: 48px;

        height: 48px;

    }


    .brand-name {

        font-size: 20px;

    }


    .nav-links {

        display: none;

    }


    .section,
    .hero,
    .about-section,
    .download-section {

        width:
            min(
                100% - 32px,
                1150px
            );

    }


    .hero {

        min-height: auto;

        padding: 55px 0;

    }


    .hero h1 {

        font-size: 48px;

        letter-spacing: -2px;

    }


    .feature-grid {

        grid-template-columns: 1fr;

    }


    .about-grid {

        grid-template-columns: 1fr;

    }


    .download-card {

        flex-direction: column;

        align-items: flex-start;

        padding: 32px;

    }


    .download-logo {

        display: none;

    }


    .footer-container {

        width:
            min(
                100% - 32px,
                1150px
            );

        flex-direction: column;

    }


    .footer-links {

        align-items: flex-start;

        flex-direction: column;

    }

}