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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background: #080d18;
    color: #ffffff;
}

header {
    height: 85px;
    padding: 0 9%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #0c1424;
    border-bottom: 1px solid #1b2b43;
}

.logo {
    font-size: 25px;
    font-weight: 800;
    color: white;
    text-decoration: none;
}

.logo span {
    color: #2685ff;
}

nav {
    display: flex;
    gap: 30px;
}

nav a {
    color: #aebbd0;
    text-decoration: none;
    font-size: 14px;
    transition: .2s;
}

nav a:hover {
    color: #318bff;
}

.nav-button, .button {
    background: #1877f2;
    color: white;
    padding: 14px 23px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    display: inline-block;
    transition: .25s;
}

.nav-button:hover, .button:hover {
    background: #3990ff;
    transform: translateY(-3px);
}

.hero {
    text-align: center;
    padding: 120px 20px 100px;
    background:
        radial-gradient(ellipse at 50% 0%, #143b75 0%, transparent 55%),
        #080d18;
}

.tag {
    display: inline-block;
    color: #64a8ff;
    background: #10284b;
    border: 1px solid #2056a0;
    padding: 10px 18px;
    border-radius: 30px;
    font-size: 12px;
    font-weight: 700;
    margin-bottom: 30px;
}

.hero h1 {
    font-size: clamp(38px, 6vw, 68px);
    font-weight: 800;
    line-height: 1.15;
}

.hero h1 span {
    color: #318bff;
}

.hero p {
    color: #a6b4c9;
    max-width: 600px;
    margin: 25px auto;
    line-height: 1.8;
    font-size: 16px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.secondary {
    background: #17243a;
    border: 1px solid #2c405f;
}

.secondary:hover {
    background: #263d5e;
}

.hero-info {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    margin-top: 65px;
    color: #b6c6dc;
    font-size: 14px;
}

.features, .pricing, .contact {
    padding: 90px 8%;
    text-align: center;
}

.features h2, .pricing h2, .contact h2 {
    font-size: 34px;
    font-weight: 800;
}

.subtitle {
    color: #899bb5;
    margin: 15px 0 45px;
}

.feature-grid, .price-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    max-width: 1100px;
    margin: auto;
}

.feature-grid article, .price-card {
    background: #101a2c;
    border: 1px solid #243650;
    border-radius: 14px;
    padding: 32px 25px;
    text-align: left;
}

.feature-icon {
    font-size: 30px;
    margin-bottom: 20px;
}

.feature-grid h3, .price-card h3 {
    margin-bottom: 14px;
}

.feature-grid p {
    color: #93a5be;
    line-height: 1.7;
    font-size: 14px;
}

.pricing {
    background: #0b1220;
}

.price-card {
    position: relative;
    padding: 35px 28px;
}

.price-card.popular {
    border: 2px solid #2685ff;
    background: #12233c;
}

.popular-tag {
    color: #75b5ff;
    font-size: 11px;
    font-weight: 800;
    margin-bottom: 18px;
}

.price {
    font-size: 35px;
    font-weight: 800;
    margin: 20px 0;
}

.price small {
    color: #8da1bd;
    font-size: 13px;
    font-weight: 400;
}

.price-card ul {
    list-style: none;
    margin: 25px 0;
}

.price-card li {
    color: #c2cee0;
    padding: 10px 0;
    border-bottom: 1px solid #26354b;
    font-size: 14px;
}

.price-card li::before {
    content: "✓";
    color: #3995ff;
    margin-right: 10px;
}

.price-card .button {
    width: 100%;
    text-align: center;
}

.notice {
    color: #71839d;
    font-size: 12px;
    margin-top: 25px;
}

.contact {
    background: radial-gradient(ellipse at center, #102d55, #080d18 70%);
}

.contact p {
    color: #a8b7cc;
    margin: 20px 0;
}

footer {
    padding: 35px 8%;
    background: #070b13;
    border-top: 1px solid #1b2b43;
    text-align: center;
}

footer p {
    color: #75869e;
    font-size: 12px;
    margin-top: 12px;
}

@media (max-width: 800px) {
    header {
        height: auto;
        padding: 25px;
        flex-wrap: wrap;
        gap: 20px;
    }

    nav {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 16px;
    }

    .nav-button {
        display: none;
    }

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

    .hero {
        padding-top: 80px;
    }

    .hero-info {
        gap: 20px;
    }
}