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

:root {
    --black: #090b10;
    --dark: #10131a;
    --dark-2: #171b24;
    --white: #ffffff;
    --soft: #f4f5f7;
    --muted: #7d8490;
    --line: #e7e9ed;
    --accent: #ff1744;
    --accent-dark: #d90032;
    --gold: #f6c343;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family:
        Inter,
        Arial,
        Helvetica,
        sans-serif;

    background: var(--white);
    color: var(--black);
    line-height: 1.6;
}

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


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

.topbar {
    height: 76px;
    padding: 0 6%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--line);
    background: rgba(255,255,255,.96);
    position: sticky;
    top: 0;
    z-index: 100;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 11px;
    display: grid;
    place-items: center;
    background: var(--accent);
    color: white;
    font-weight: 900;
    font-size: 20px;
}

.brand-name {
    font-size: 20px;
    font-weight: 900;
    letter-spacing: 2px;
}

.desktop-nav {
    display: flex;
    gap: 32px;
}

.desktop-nav a {
    font-size: 14px;
    font-weight: 600;
    color: #555b65;
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.login-link {
    font-weight: 700;
    font-size: 14px;
}


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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 15px 24px;
    border-radius: 12px;
    font-weight: 800;
    transition: .25s ease;
}

.btn-small {
    padding: 10px 18px;
    background: var(--black);
    color: white;
}

.btn-primary {
    background: var(--accent);
    color: white;
    box-shadow: 0 12px 30px rgba(255,23,68,.22);
}

.btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
}

.btn-outline {
    border: 1px solid #d7dae0;
}

.btn-outline:hover {
    border-color: var(--black);
}

.btn-light {
    background: white;
    color: var(--black);
}


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

.hero {
    min-height: 690px;
    padding: 90px 8%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 60px;
    background:
        radial-gradient(
            circle at 85% 25%,
            rgba(255,23,68,.10),
            transparent 30%
        ),
        #fafafa;
    overflow: hidden;
}

.hero-content {
    max-width: 650px;
}

.eyebrow {
    color: var(--accent);
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 2.5px;
    margin-bottom: 18px;
}

.hero h1 {
    font-size: clamp(48px, 6vw, 82px);
    line-height: .98;
    letter-spacing: -4px;
    margin-bottom: 28px;
}

.hero h1 span,
.section-heading h2 span,
.coin-copy h2 span {
    display: block;
    color: var(--accent);
}

.hero-text {
    max-width: 570px;
    color: #646b76;
    font-size: 18px;
    margin-bottom: 34px;
}

.hero-buttons {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.hero-note {
    margin-top: 28px;
    color: #858b95;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 9px;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: #19b96b;
    border-radius: 50%;
    box-shadow: 0 0 0 5px rgba(25,185,107,.10);
}


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

.hero-visual {
    min-height: 500px;
    position: relative;
    display: grid;
    place-items: center;
}

.orbit {
    position: absolute;
    border: 1px solid #e2e4e8;
    border-radius: 50%;
}

.orbit-one {
    width: 390px;
    height: 390px;
}

.orbit-two {
    width: 510px;
    height: 510px;
}

.coin-card {
    position: relative;
    z-index: 4;
    width: 240px;
    padding: 22px;
    border-radius: 22px;
    background: var(--black);
    color: white;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 30px 80px rgba(0,0,0,.22);
}

.coin-icon {
    width: 58px;
    height: 58px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: var(--gold);
    font-size: 28px;
}

.coin-card small {
    display: block;
    color: #9da3ad;
    font-size: 9px;
    letter-spacing: 1px;
}

.coin-card strong {
    font-size: 30px;
}

.floating-card {
    position: absolute;
    z-index: 5;
    padding: 14px 18px;
    border-radius: 16px;
    background: white;
    box-shadow: 0 18px 45px rgba(0,0,0,.10);
    display: flex;
    align-items: center;
    gap: 11px;
}

.floating-card > span {
    font-size: 25px;
}

.floating-card strong,
.floating-card small {
    display: block;
}

.floating-card strong {
    font-size: 12px;
}

.floating-card small {
    color: #9298a2;
    font-size: 10px;
}

.card-arena {
    top: 35px;
    left: 3%;
}

.card-music {
    right: 0;
    top: 35%;
}

.card-data {
    bottom: 35px;
    left: 10%;
}


/* =========================================================
   STATS
========================================================= */

.stats {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    border-bottom: 1px solid var(--line);
}

.stat {
    min-height: 110px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    border-right: 1px solid var(--line);
    font-size: 13px;
    font-weight: 700;
}

.stat:last-child {
    border-right: none;
}

.stat strong {
    font-size: 23px;
}


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

.features-section {
    padding: 110px 8%;
}

.section-heading {
    max-width: 650px;
    margin-bottom: 55px;
}

.section-heading h2 {
    font-size: clamp(38px, 5vw, 60px);
    line-height: 1.02;
    letter-spacing: -2px;
    margin-bottom: 20px;
}

.section-heading p {
    color: var(--muted);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(2,1fr);
    gap: 18px;
}

.feature-card {
    position: relative;
    min-height: 310px;
    padding: 35px;
    border-radius: 24px;
    background: #f4f5f7;
    overflow: hidden;
}

.feature-card.feature-dark {
    background: var(--black);
    color: white;
}

.feature-icon {
    font-size: 35px;
    margin-bottom: 30px;
}

.feature-number {
    position: absolute;
    right: 30px;
    top: 30px;
    color: #c5c8ce;
    font-size: 12px;
    font-weight: 800;
}

.feature-dark .feature-number {
    color: #4f5560;
}

.feature-card h3 {
    font-size: 27px;
    margin-bottom: 10px;
}

.feature-card p {
    color: #747b86;
    max-width: 440px;
    margin-bottom: 25px;
}

.feature-dark p {
    color: #a0a6b0;
}

.feature-card a {
    font-size: 13px;
    font-weight: 900;
    color: var(--accent);
}


/* =========================================================
   COIN SECTION
========================================================= */

.coin-section {
    padding: 100px 8%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 60px;
    background: var(--soft);
}

.coin-copy {
    max-width: 600px;
}

.coin-copy h2 {
    font-size: clamp(40px,5vw,65px);
    line-height: 1;
    letter-spacing: -3px;
    margin-bottom: 25px;
}

.coin-copy p {
    color: var(--muted);
    margin-bottom: 30px;
}

.coin-visual {
    min-height: 400px;
    display: grid;
    place-items: center;
    position: relative;
}

.big-coin {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: linear-gradient(
        145deg,
        #ffd968,
        #e5a91e
    );
    box-shadow:
        inset -15px -15px 30px rgba(0,0,0,.10),
        0 35px 70px rgba(0,0,0,.15);
    font-size: 85px;
    position: relative;
    z-index: 3;
}

.coin-ring {
    position: absolute;
    width: 330px;
    height: 330px;
    border: 1px dashed #cdd0d5;
    border-radius: 50%;
}

.coin-label {
    position: absolute;
    bottom: 0;
    text-align: center;
}

.coin-label small,
.coin-label strong {
    display: block;
}

.coin-label small {
    color: #8a9099;
    font-size: 9px;
    letter-spacing: 2px;
}

.coin-label strong {
    font-size: 14px;
}


/* =========================================================
   CTA
========================================================= */

.cta-section {
    padding: 80px 8%;
}

.cta-box {
    padding: 55px;
    border-radius: 28px;
    background: var(--accent);
    color: white;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.cta-box .eyebrow {
    color: rgba(255,255,255,.75);
}

.cta-box h2 {
    font-size: clamp(35px,5vw,55px);
    line-height: 1;
    margin-bottom: 15px;
}

.cta-box p {
    color: rgba(255,255,255,.82);
}


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

.footer {
    padding: 50px 8%;
    background: var(--black);
    color: white;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    align-items: center;
    gap: 25px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: 2px;
}

.footer > p {
    color: #898f99;
    text-align: center;
    font-size: 13px;
}

.footer-links {
    display: flex;
    justify-content: flex-end;
    gap: 20px;
    font-size: 12px;
    color: #a5aab3;
}

.copyright {
    grid-column: 1/-1;
    border-top: 1px solid #252932;
    padding-top: 25px;
    color: #626873;
    font-size: 11px;
}


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

@media (max-width: 800px) {

    .topbar {
        height: 68px;
        padding: 0 5%;
    }

    .desktop-nav {
        display: none;
    }

    .brand-name {
        font-size: 17px;
    }

    .login-link {
        display: none;
    }

    .hero {
        min-height: auto;
        padding: 70px 6% 40px;
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .hero h1 {
        font-size: 54px;
        letter-spacing: -3px;
    }

    .hero-text {
        font-size: 16px;
    }

    .hero-visual {
        min-height: 390px;
    }

    .orbit-one {
        width: 270px;
        height: 270px;
    }

    .orbit-two {
        width: 350px;
        height: 350px;
    }

    .coin-card {
        width: 210px;
    }

    .floating-card {
        padding: 10px 13px;
    }

    .card-arena {
        left: 0;
        top: 10px;
    }

    .card-music {
        right: 0;
        top: 38%;
    }

    .card-data {
        left: 3%;
        bottom: 10px;
    }

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

    .stat {
        min-height: 90px;
        border-bottom: 1px solid var(--line);
    }

    .features-section {
        padding: 75px 6%;
    }

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

    .coin-section {
        padding: 75px 6%;
        grid-template-columns: 1fr;
    }

    .coin-visual {
        min-height: 330px;
    }

    .cta-section {
        padding: 55px 6%;
    }

    .cta-box {
        padding: 35px 25px;
        flex-direction: column;
        align-items: flex-start;
    }

    .footer {
        padding: 45px 6%;
        grid-template-columns: 1fr;
    }

    .footer > p {
        text-align: left;
    }

    .footer-links {
        justify-content: flex-start;
    }

}