* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #061421;
    color: #ffffff;
    line-height: 1.6;
}

a {
    text-decoration: none;
}

.hero {
    position: relative;
    min-height: 92vh;
    padding: 28px 7% 90px;
    overflow: hidden;
    background:
        radial-gradient(circle at 80% 20%, rgba(22, 168, 230, .32), transparent 28%),
        radial-gradient(circle at 20% 80%, rgba(0, 86, 130, .35), transparent 32%),
        linear-gradient(135deg, #02070d 0%, #08233a 50%, #02070d 100%);
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
    background-size: 52px 52px;
    mask-image: linear-gradient(to bottom, rgba(0,0,0,.8), transparent);
}

.glow {
    position: absolute;
    width: 360px;
    height: 360px;
    border-radius: 50%;
    filter: blur(75px);
    opacity: .55;
}

.glow-1 {
    background: #13b8ff;
    top: 10%;
    left: -100px;
}

.glow-2 {
    background: #0c5d9d;
    right: -120px;
    bottom: 10%;
}

.nav {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    max-width: 260px;
    width: 42vw;
}

.nav-btn,
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    font-weight: 800;
    letter-spacing: .3px;
}

.nav-btn {
    color: #ffffff;
    border: 1px solid rgba(49, 188, 255, .7);
    padding: 11px 22px;
    background: rgba(255,255,255,.06);
    box-shadow: 0 0 24px rgba(19,184,255,.22);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    padding-top: 90px;
}

.eyebrow {
    color: #27c6ff;
    text-transform: uppercase;
    font-weight: 900;
    letter-spacing: 2px;
    margin: 0 0 12px;
}

h1,
h2 {
    margin: 0;
    line-height: 1.05;
}

h1 {
    font-size: clamp(48px, 8vw, 108px);
    text-transform: uppercase;
    font-weight: 950;
}

h1 span {
    color: #22bfff;
    text-shadow: 0 0 28px rgba(34,191,255,.55);
}

.hero-badge {
    display: inline-block;
    margin-top: 22px;
    padding: 12px 22px;
    color: #061421;
    background: linear-gradient(135deg, #7de6ff, #0da7ee);
    border-radius: 999px;
    font-weight: 900;
    box-shadow: 0 0 30px rgba(34,191,255,.4);
    text-transform: uppercase;
}

.subtitle {
    max-width: 720px;
    font-size: 20px;
    color: #ccefff;
}

.cta-row {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 32px;
}

.btn {
    padding: 15px 26px;
}

.primary {
    background: linear-gradient(135deg, #35d3ff, #0879c8);
    color: #03101b;
    box-shadow: 0 12px 30px rgba(20,174,240,.35);
}

.secondary {
    color: #ffffff;
    border: 1px solid rgba(255,255,255,.25);
    background: rgba(255,255,255,.06);
}

.section {
    padding: 80px 7%;
    position: relative;
}

.section-head {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 36px;
}

.section-head h2,
.example-card h2,
.join h2 {
    font-size: clamp(32px, 4vw, 56px);
}

.section-head p,
.note,
.join p,
.worldcup-box p {
    color: #b8d8ea;
}

.worldcup-box,
.example-card,
.tier-card,
.formula-flow,
.benefit-grid div,
.join {
    background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
    border: 1px solid rgba(50, 192, 255, .35);
    box-shadow: 0 18px 50px rgba(0,0,0,.35);
}

.worldcup-box {
    max-width: 1040px;
    margin: auto;
    border-radius: 28px;
    padding: 46px;
    text-align: center;
}

.worldcup-box h2 {
    color: #ffffff;
}

.tier-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    max-width: 1160px;
    margin: auto;
}

.tier-card {
    border-radius: 24px;
    padding: 30px 18px;
    text-align: center;
    transition: transform .25s ease, border-color .25s ease;
}

.tier-card:hover {
    transform: translateY(-6px);
    border-color: #26c8ff;
}

.tier-card strong {
    display: block;
    font-size: 54px;
    color: #23c4ff;
}

.tier-card span,
.tier-card small {
    display: block;
}

.tier-card small {
    color: #8fdfff;
    margin-top: 8px;
    font-weight: 700;
}

.tier-card.highlight {
    background: linear-gradient(180deg, rgba(35,196,255,.28), rgba(255,255,255,.04));
}

.formula-flow {
    max-width: 1180px;
    margin: auto;
    border-radius: 26px;
    padding: 28px;
    display: flex;
    gap: 14px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.formula-flow div {
    padding: 16px 18px;
    border-radius: 16px;
    background: rgba(0,0,0,.28);
    border: 1px solid rgba(255,255,255,.12);
    font-weight: 800;
}

.formula-flow span {
    color: #23c4ff;
    font-size: 30px;
    font-weight: 900;
}

.example-card {
    max-width: 1160px;
    margin: auto;
    border-radius: 30px;
    padding: 38px;
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 36px;
    align-items: center;
}

.calc-box {
    background: #03101b;
    border: 1px solid rgba(35,196,255,.45);
    border-radius: 22px;
    padding: 22px;
}

.row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255,255,255,.12);
}

.minus b {
    color: #ffb5b5;
}

.total b {
    color: #23c4ff;
}

.commission {
    margin-top: 20px;
    padding: 22px;
    border-radius: 18px;
    background: linear-gradient(135deg, #35d3ff, #0879c8);
    color: #03101b;
    font-weight: 900;
    text-align: center;
}

.commission strong {
    font-size: clamp(34px, 5vw, 62px);
}

.benefit-grid {
    max-width: 1160px;
    margin: auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.benefit-grid div {
    border-radius: 18px;
    padding: 22px;
    font-weight: 800;
    text-align: center;
}

.join {
    margin: 40px 7% 70px;
    padding: 60px 28px;
    border-radius: 30px;
    text-align: center;
}

.join img {
    max-width: 250px;
    margin-bottom: 22px;
}

.terms {
    margin: 28px auto 0;
    max-width: 760px;
    font-size: 13px;
    color: #9db8c9;
}

@media (max-width: 900px) {
    .hero {
        padding: 24px 22px 70px;
        min-height: auto;
    }

    .hero-content {
        padding-top: 70px;
        text-align: center;
    }

    .nav {
        gap: 16px;
    }

    .nav-btn {
        padding: 9px 15px;
    }

    .tier-grid,
    .benefit-grid,
    .example-card {
        grid-template-columns: 1fr;
    }

    .formula-flow {
        flex-direction: column;
    }

    .formula-flow span {
        transform: rotate(90deg);
    }

    .section {
        padding: 60px 22px;
    }
}