html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    overflow-x: hidden;
    font-family:
        Inter,
        ui-sans-serif,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
}

.container-site {
    width: min(100% - 2.5rem, 1500px);
    margin-inline: auto;
}

.section-space {
    padding: 5.5rem 0;
}

.nav-link {
    position: relative;
    transition:
        color .25s ease,
        transform .25s ease;
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 100%;
    bottom: -7px;
    height: 2px;
    background: #facc15;
    transition: right .25s ease;
}

.nav-link:hover {
    color: #fde047;
    transform: translateY(-2px);
}

.nav-link:hover::after {
    right: 0;
}

.mobile-link {
    display: block;
    padding: 1rem 1.1rem;
    border-radius: 14px;
    color: #334155;
    font-weight: 600;
    transition:
        background .2s ease,
        color .2s ease,
        transform .2s ease;
}

.mobile-link:hover {
    background: #eff6ff;
    color: #195fa8;
    transform: translateX(4px);
}

.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .7rem;
    min-height: 52px;
    padding: 0 1.5rem;
    border-radius: 999px;
    font-weight: 700;
    transition:
        transform .25s ease,
        box-shadow .25s ease,
        background .25s ease;
}

.btn-primary {
    background: #facc15;
    color: #10263b;
    box-shadow: 0 14px 35px rgba(250, 204, 21, .22);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 45px rgba(250, 204, 21, .32);
}

.btn-secondary {
    color: #fff;
    border: 1px solid rgba(255, 255, 255, .28);
    background: rgba(255, 255, 255, .08);
    backdrop-filter: blur(12px);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, .15);
}

.hero-card {
    box-shadow:
        0 30px 70px rgba(4, 35, 65, .25);
}

.section-heading {
    max-width: 760px;
    margin-inline: auto;
    text-align: center;
}

.section-heading h2 {
    margin-top: 1rem;
    color: #0f172a;
    font-size: clamp(2rem, 4vw, 3.4rem);
    line-height: 1.05;
    letter-spacing: -.04em;
    font-weight: 800;
}

.section-heading p {
    margin-top: 1.25rem;
    color: #64748b;
    line-height: 1.75;
    font-size: 1.05rem;
}

.section-kicker {
    display: inline-block;
    color: #195fa8;
    font-size: .79rem;
    line-height: 1;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .18em;
}

.feature-card,
.content-card,
.event-card {
    border-radius: 24px;
    overflow: hidden;
    background: #fff;
    border: 1px solid #e9eef4;
    transition:
        transform .3s ease,
        box-shadow .3s ease,
        border-color .3s ease;
}

.feature-card {
    padding: 2rem;
}

.feature-card:hover,
.content-card:hover,
.event-card:hover {
    transform: translateY(-7px);
    box-shadow: 0 25px 60px rgba(15, 23, 42, .09);
    border-color: #d7e6f6;
}

.feature-number {
    color: #195fa8;
    font-weight: 800;
    font-size: .78rem;
    letter-spacing: .14em;
}

.feature-card h3 {
    margin-top: .8rem;
    font-size: 1.45rem;
    font-weight: 800;
    color: #0f172a;
}

.feature-card p {
    margin-top: .75rem;
    color: #64748b;
    line-height: 1.7;
}

.play-button {
    width: 58px;
    height: 58px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-left: 4px;
    color: #fff;
    background: #195fa8;
    box-shadow: 0 14px 30px rgba(25, 95, 168, .28);
    transition:
        transform .25s ease,
        background .25s ease;
}

.content-card:hover .play-button {
    transform: scale(1.09);
    background: #f1b900;
}

.site-card {
    padding: 1.8rem;
    border-radius: 24px;
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .12);
    backdrop-filter: blur(10px);
    transition:
        transform .25s ease,
        background .25s ease;
}

.site-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, .12);
}

.site-card h3 {
    margin-top: .45rem;
    font-size: 1.5rem;
    font-weight: 800;
}

.site-card > p:not(.site-city) {
    margin-top: .8rem;
    color: rgba(255, 255, 255, .62);
}

.site-city {
    color: #fde047;
    text-transform: uppercase;
    font-size: .75rem;
    font-weight: 800;
    letter-spacing: .12em;
}

.site-button {
    margin-top: 1.5rem;
    border: 1px solid rgba(255, 255, 255, .20);
    border-radius: 999px;
    padding: .75rem 1.1rem;
    background: rgba(255, 255, 255, .08);
    color: #fff;
    font-weight: 700;
    transition:
        transform .2s ease,
        background .2s ease,
        color .2s ease;
}

.site-button:hover {
    transform: translateY(-2px);
    background: #facc15;
    color: #10263b;
}

.header-scrolled {
    background: rgba(7, 47, 84, .94);
    backdrop-filter: blur(16px);
    box-shadow: 0 5px 30px rgba(0, 0, 0, .12);
}

@media (max-width: 767px) {

    .container-site {
        width: min(100% - 2rem, 1500px);
    }

    .section-space {
        padding: 4rem 0;
    }

}