:root {
    color-scheme: light;
    --portal-navy: #202f59;
    --portal-red: #ed174c;
    --portal-muted: #66728a;
    --portal-section-space: clamp(1.5rem, 3vw, 2rem);
}

* { box-sizing: border-box; }

html { min-height: 100%; background: var(--portal-navy); }

body {
    min-height: 100vh;
    margin: 0;
    color: #fff;
    background:
        radial-gradient(ellipse at 50% -15%, rgba(76, 105, 164, .42), transparent 58%),
        var(--portal-navy);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.portal {
    width: min(100% - 3rem, 1240px);
    margin: 0 auto;
    padding: clamp(2rem, 5vw, 4.5rem) 0 1.5rem;
}

.portal-header { text-align: center; margin-bottom: var(--portal-section-space); }

.portal-logo { display: inline-block; margin-bottom: 1.4rem; }
.portal-logo img { display: block; width: min(290px, 68vw); height: auto; }

.portal-header h1 { margin: 0; font-size: clamp(1.65rem, 3vw, 2.35rem); line-height: 1.15; letter-spacing: -.035em; }
.portal-header p { margin: .65rem 0 0; color: rgba(255,255,255,.78); font-size: 1rem; }

.portal-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.15rem; }

.portal-card {
    position: relative;
    display: flex;
    min-height: 380px;
    overflow: hidden;
    align-items: flex-end;
    border: 1px solid rgba(255,255,255,.2);
    border-radius: 18px;
    color: #fff;
    background-color: #34466f;
    background-image:
        linear-gradient(180deg, rgba(10,18,38,.04) 5%, rgba(10,18,38,.38) 40%, rgba(10,18,38,.91) 100%),
        var(--card-image),
        linear-gradient(135deg, #526b99, #182442 78%);
    background-position: center;
    background-size: cover;
    box-shadow: 0 16px 34px rgba(0,0,0,.2);
    text-decoration: none;
    transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.portal-card[href]:hover { transform: translateY(-3px); border-color: rgba(255,255,255,.65); box-shadow: 0 22px 42px rgba(0,0,0,.28); }
.portal-card[href]:focus-visible { outline: 3px solid #fff; outline-offset: 4px; }
.portal-card-content { display: flex; width: 100%; flex-direction: column; align-items: flex-start; padding: 1.45rem; }
.portal-card-title { font-size: clamp(1.35rem, 2vw, 1.8rem); font-weight: 850; line-height: 1.1; text-shadow: 0 2px 12px rgba(0,0,0,.38); }
.portal-card-subtitle { max-width: 34rem; margin-top: .55rem; color: rgba(255,255,255,.9); font-size: .98rem; line-height: 1.4; text-shadow: 0 1px 8px rgba(0,0,0,.5); }
.portal-card-action { display: inline-flex; align-items: center; gap: .55rem; margin-top: 1.15rem; color: #fff; font-size: .88rem; font-weight: 800; }
.portal-card-action span { color: #ff5276; font-size: 1.15rem; transition: transform 160ms ease; }
.portal-card[href]:hover .portal-card-action span { transform: translateX(3px); }
.portal-card-placeholder { min-height: 380px; opacity: .8; }
.portal-card-placeholder .portal-card-action { color: rgba(255,255,255,.75); }
.portal-advert-slot { width: min(100%, 970px); margin: var(--portal-section-space) auto 0; text-align: center; }
.portal-advert-label { margin: 0 0 .45rem; color: rgba(255,255,255,.65); font-size: .68rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.portal-advert-link { display: block; overflow: hidden; border: 1px solid rgba(255,255,255,.2); border-radius: 12px; background: rgba(255,255,255,.06); line-height: 0; }
.portal-advert-link:focus-visible { outline: 3px solid #fff; outline-offset: 4px; }
.portal-advert-image { display: block; width: 100%; height: auto; }
.portal-footer { padding-top: var(--portal-section-space); color: rgba(255,255,255,.7); font-size: .82rem; text-align: center; }

@media (max-width: 850px) {
    .portal-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .portal-card, .portal-card-placeholder { min-height: 340px; }
}

@media (max-width: 560px) {
    :root { --portal-section-space: 1.5rem; }
    .portal { width: 100%; padding-top: 2rem; }
    .portal-header { padding: 0 1rem; }
    .portal-logo { margin-bottom: 1rem; }
    .portal-grid { grid-template-columns: 1fr; gap: .8rem; }
    .portal-card, .portal-card-placeholder { min-height: 260px; border-right: 0; border-left: 0; border-radius: 0; }
    .portal-card-content { padding: 1.2rem 1.25rem; }
    .portal-footer { padding: var(--portal-section-space) 1rem 1rem; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}