/* Footer — Vasi Web Institute */

.site-footer {
    position: relative;
    background: linear-gradient(180deg, #0b2247 0%, #061528 100%);
    color: #c8d6ea;
    font-family: "Inter", system-ui, sans-serif;
}

.site-footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #0056e0 0%, #3d8bff 50%, #0056e0 100%);
}

.site-footer__inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 3.5rem 1.25rem 1.5rem;
}

.site-footer__top {
    display: grid;
    grid-template-columns: minmax(260px, 1.35fr) minmax(0, 1.65fr);
    gap: 3rem 2.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-footer__nav-group {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem;
}

.site-footer__logo-link {
    display: inline-flex;
    align-items: center;
    margin-bottom: 1.25rem;
    padding: 0.45rem 0.9rem;
    text-decoration: none;
    background: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.site-footer__logo-link:hover,
.site-footer__logo-link:focus-visible {
    transform: translateY(-1px);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.24);
    outline: none;
}

.site-footer__logo {
    display: block;
    width: auto;
    height: 52px;
    max-width: 220px;
    object-fit: contain;
    border-radius: 8px;
}

.site-footer__about {
    margin: 0 0 1.35rem;
    max-width: 360px;
    line-height: 1.75;
    font-size: 0.9375rem;
    color: #9fb3cc;
}

.site-footer__heading {
    position: relative;
    margin: 0 0 1.1rem;
    padding-bottom: 0.65rem;
    color: #ffffff;
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.site-footer__heading::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 2rem;
    height: 2px;
    border-radius: 999px;
    background: #0056e0;
}

.site-footer__list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.site-footer__list li + li {
    margin-top: 0.55rem;
}

.site-footer__list--compact li + li {
    margin-top: 0.45rem;
}

.site-footer__list a,
.site-footer__address a {
    color: #b8c9de;
    font-size: 0.9375rem;
    line-height: 1.5;
    text-decoration: none;
    transition: color 0.2s ease, transform 0.2s ease;
}

.site-footer__list a:hover,
.site-footer__list a:focus-visible,
.site-footer__address a:hover,
.site-footer__address a:focus-visible {
    color: #ffffff;
    outline: none;
}

.site-footer__link--featured {
    display: inline-flex;
    align-items: center;
    color: #ffffff !important;
    font-weight: 600;
}

.site-footer__address {
    font-style: normal;
}

.site-footer__address p {
    margin: 0 0 0.65rem;
    line-height: 1.65;
    font-size: 0.9375rem;
    color: #b8c9de;
}

.site-footer__social {
    display: flex;
    gap: 0.65rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.site-footer__social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: #ffffff;
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    transition: background 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.site-footer__social a:hover,
.site-footer__social a:focus-visible {
    background: #0056e0;
    border-color: #0056e0;
    transform: translateY(-2px);
    outline: none;
}

.site-footer__programs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
    margin-top: 2rem;
}

.site-footer__program {
    padding: 1.5rem 1.5rem 1.35rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.site-footer__program-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.1rem;
}

.site-footer__program-head .site-footer__heading {
    margin-bottom: 0;
    padding-bottom: 0.65rem;
}

.site-footer__program-all {
    flex-shrink: 0;
    color: #7eb4ff;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-decoration: none;
    transition: color 0.2s ease;
}

.site-footer__program-all:hover,
.site-footer__program-all:focus-visible {
    color: #ffffff;
    outline: none;
}

.site-footer__program-columns {
    display: grid;
    gap: 1.25rem 1.5rem;
    align-items: start;
}

.site-footer__program-columns--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.site-footer__program-columns--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.site-footer__program-columns .site-footer__list a {
    font-size: 0.875rem;
    line-height: 1.45;
}

.site-footer__bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.75rem;
    margin-top: 2.5rem;
    padding-top: 1.35rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 0.8125rem;
    color: #7a92ad;
}

.site-footer__bottom p {
    margin: 0;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.whatsapp-float {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 999;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    color: #ffffff;
    background: #25d366;
    border-radius: 50%;
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.45);
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.whatsapp-float:hover,
.whatsapp-float:focus-visible {
    transform: scale(1.06);
    box-shadow: 0 12px 32px rgba(37, 211, 102, 0.55);
    outline: none;
}

@media (max-width: 1024px) {
    .site-footer__top {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .site-footer__nav-group {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .site-footer__programs {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .site-footer__nav-group {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .site-footer__col--contact {
        grid-column: 1 / -1;
    }

    .site-footer__program-columns--3 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 600px) {
    .site-footer__inner {
        padding-top: 3rem;
    }

    .site-footer__nav-group {
        grid-template-columns: 1fr;
    }

    .site-footer__program {
        padding: 1.25rem 1.1rem;
    }

    .site-footer__program-columns--2,
    .site-footer__program-columns--3 {
        grid-template-columns: 1fr;
    }

    .site-footer__logo-link {
        padding: 0.3rem 0.65rem;
        border-radius: 10px;
    }

    .site-footer__logo {
        height: 44px;
        max-width: 175px;
        border-radius: 6px;
    }

    .site-footer__bottom {
        flex-direction: column;
    }
}