/* Mail-jetable — Site footer */
.site-footer {
    --sf-primary: var(--primary, #0155b5);
    --sf-secondary: var(--secondary, #2fc10a);
    --sf-text: #cbd5e1;
    --sf-text-muted: #94a3b8;
    --sf-heading: #f8fafc;
    --sf-border: rgba(255, 255, 255, 0.08);
    --sf-surface: rgba(255, 255, 255, 0.04);
    position: relative;
    z-index: 0;
    overflow: hidden;
    margin-top: 3rem;
    color: var(--sf-text);
    font-family: var(--body-font, system-ui, sans-serif);
    background:
        radial-gradient(ellipse 80% 60% at 10% 100%, color-mix(in srgb, var(--sf-primary) 35%, transparent), transparent 55%),
        radial-gradient(ellipse 60% 50% at 90% 0%, color-mix(in srgb, var(--sf-secondary) 18%, transparent), transparent 50%),
        linear-gradient(180deg, #0b1220 0%, #070b14 100%);
}

.site-footer--nebula {
    margin-top: 4rem;
}

.site-footer::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        105deg,
        transparent 40%,
        color-mix(in srgb, var(--sf-primary) 12%, transparent) 50%,
        transparent 60%
    );
    background-size: 200% 100%;
    animation: sf-shimmer 12s ease-in-out infinite;
    pointer-events: none;
}

.site-footer::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--sf-primary), var(--sf-secondary), var(--sf-primary));
    background-size: 200% 100%;
    animation: sf-accent-line 6s linear infinite;
}

.site-footer__inner {
    position: relative;
    z-index: 1;
    margin-top: 50px;
    margin-bottom: 50px;
}

.site-footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
}

@media (min-width: 640px) {
    .site-footer__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 1024px) {
    .site-footer__grid {
        grid-template-columns: minmax(0, 1.35fr) repeat(3, minmax(0, 1fr));
        gap: 2rem 3rem;
    }
}

.site-footer__brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
}

@media (min-width: 1024px) {
    .site-footer__brand {
        align-items: flex-start;
        text-align: left;
    }
}

.site-footer__logo {
    display: inline-flex;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), filter 0.35s ease;
}

.site-footer__logo:hover {
    transform: translateY(-3px) scale(1.02);
    filter: drop-shadow(0 8px 20px color-mix(in srgb, var(--sf-primary) 45%, transparent));
}

.site-footer__logo img {
    height: 2.75rem;
    width: auto;
    max-width: 11rem;
    object-fit: contain;
}

.site-footer__tagline {
    margin: 0;
    max-width: 22rem;
    font-size: 0.9375rem;
    line-height: 1.65;
    color: var(--sf-text-muted);
}

.site-footer__heading {
    margin: 0 0 1.125rem;
    font-family: var(--head-font, var(--body-font, system-ui, sans-serif));
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--sf-heading);
}

.site-footer__heading::after {
    content: "";
    display: block;
    width: 1.75rem;
    height: 2px;
    margin-top: 0.5rem;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--sf-primary), var(--sf-secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.site-footer__col:hover .site-footer__heading::after,
.site-footer__brand:hover .site-footer__heading::after {
    transform: scaleX(1);
}

.site-footer__links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.site-footer__link,
.site-footer__link-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9375rem;
    line-height: 1.45;
    color: var(--sf-text);
    text-decoration: none;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    font-family: inherit;
    transition: color 0.25s ease, transform 0.25s ease;
}

.site-footer__link::before,
.site-footer__link-btn::before {
    content: "";
    width: 0;
    height: 1.5px;
    border-radius: 999px;
    background: var(--sf-secondary);
    transition: width 0.25s ease;
    flex-shrink: 0;
}

.site-footer__link:hover,
.site-footer__link:focus-visible,
.site-footer__link-btn:hover,
.site-footer__link-btn:focus-visible {
    color: #fff;
    transform: translateX(4px);
}

.site-footer__link:hover::before,
.site-footer__link:focus-visible::before,
.site-footer__link-btn:hover::before,
.site-footer__link-btn:focus-visible::before {
    width: 0.65rem;
}

.site-footer__play {
    display: inline-flex;
    align-items: center;
    gap: 0.875rem;
    width: 100%;
    max-width: 16.5rem;
    padding: 0.875rem 1.125rem;
    border-radius: 1rem;
    border: 1px solid color-mix(in srgb, var(--sf-primary) 45%, rgba(255, 255, 255, 0.12));
    background:
        linear-gradient(135deg, color-mix(in srgb, var(--sf-primary) 22%, rgba(255, 255, 255, 0.06)), rgba(255, 255, 255, 0.03));
    color: #fff;
    text-decoration: none;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
    transition:
        transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1),
        box-shadow 0.35s ease,
        border-color 0.35s ease;
}

.site-footer__play:hover {
    transform: translateY(-4px) scale(1.02);
    border-color: color-mix(in srgb, var(--sf-secondary) 55%, white);
    box-shadow:
        0 12px 32px rgba(0, 0, 0, 0.35),
        0 0 0 1px color-mix(in srgb, var(--sf-primary) 25%, transparent),
        0 0 28px color-mix(in srgb, var(--sf-primary) 30%, transparent);
}

.site-footer__play-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 0.75rem;
    background: linear-gradient(135deg, var(--sf-primary), color-mix(in srgb, var(--sf-primary) 70%, #000));
    font-size: 1.35rem;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.site-footer__play:hover .site-footer__play-icon {
    transform: rotate(-8deg) scale(1.08);
}

.site-footer__play-label {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.site-footer__play-label small {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--sf-text-muted);
}

.site-footer__play-label strong {
    font-size: 1rem;
    font-weight: 700;
}

.site-footer__socials {
    display: flex;
    flex-wrap: wrap;
    gap: 0.625rem;
    justify-content: center;
}

@media (min-width: 1024px) {
    .site-footer__socials {
        justify-content: flex-start;
    }
}

.site-footer__social {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 999px;
    border: 1px solid var(--sf-border);
    background: var(--sf-surface);
    color: var(--sf-text);
    font-size: 1rem;
    text-decoration: none;
    transition:
        transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
        background 0.25s ease,
        color 0.25s ease,
        border-color 0.25s ease,
        box-shadow 0.25s ease;
}

.site-footer__social:hover {
    transform: translateY(-3px) scale(1.08);
    color: #fff;
    border-color: color-mix(in srgb, var(--sf-primary) 50%, white);
    background: color-mix(in srgb, var(--sf-primary) 25%, rgba(255, 255, 255, 0.08));
    box-shadow: 0 8px 20px color-mix(in srgb, var(--sf-primary) 25%, transparent);
}

.site-footer__col--app {
    display: flex;
    flex-direction: column;
    align-items: center;
}

@media (min-width: 1024px) {
    .site-footer__col--app {
        align-items: flex-start;
    }
}

.site-footer__bottom {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--sf-border);
    text-align: center;
    font-size: 0.8125rem;
    color: var(--sf-text-muted);
}

.site-footer__col,
.site-footer__brand-block {
    opacity: 0;
    transform: translateY(1.25rem);
    transition:
        opacity 0.65s ease,
        transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
}

.site-footer.is-visible .site-footer__col,
.site-footer.is-visible .site-footer__brand-block {
    opacity: 1;
    transform: translateY(0);
}

.site-footer.is-visible .site-footer__brand-block { transition-delay: 0.05s; }
.site-footer.is-visible .site-footer__col:nth-child(2) { transition-delay: 0.12s; }
.site-footer.is-visible .site-footer__col:nth-child(3) { transition-delay: 0.19s; }
.site-footer.is-visible .site-footer__col:nth-child(4) { transition-delay: 0.26s; }

.site-footer__bottom {
    opacity: 0;
    transition: opacity 0.65s ease 0.35s;
}

.site-footer.is-visible .site-footer__bottom {
    opacity: 1;
}

@keyframes sf-shimmer {
    0%, 100% { background-position: 200% 0; }
    50% { background-position: -200% 0; }
}

@keyframes sf-accent-line {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

@media (prefers-reduced-motion: reduce) {
    .site-footer::before,
    .site-footer::after {
        animation: none;
    }

    .site-footer__col,
    .site-footer__brand-block,
    .site-footer__bottom {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .site-footer__logo,
    .site-footer__link,
    .site-footer__link-btn,
    .site-footer__play,
    .site-footer__social {
        transition: none;
    }
}