.site-footer { background: var(--primary-color); color: #d5dcec; border-top: 4px solid var(--accent-color); }
.site-footer :focus-visible { outline-color: var(--accent-color); }
.footer-grid { display: grid; grid-template-columns: 1.3fr 0.8fr 1.2fr 1.2fr; gap: 2rem; padding-top: 3rem; padding-bottom: 2.5rem; }
.site-footer h2, .site-footer h3 { color: var(--secondary-color); }
.footer-brand { font-size: 1.3rem; }
.site-footer h3 { font-size: 1rem; letter-spacing: 0.05em; margin-top: 1.25rem; }
.footer-column h3:first-child { margin-top: 0; }
.site-footer a { color: var(--accent-color); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.footer-list { list-style: none; padding: 0; margin: 0; }
.footer-list li { margin-bottom: 0.5rem; }
.footer-news span { display: block; font-size: 0.85rem; color: #aab5cf; }
.footer-emails a { display: block; word-break: break-all; }
.footer-emails strong { display: block; }
.footer-bottom { background: #000a1f; padding: 1rem 0; font-size: 0.9rem; }

@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }

.back-to-top {position: fixed;right: 1.5rem;bottom: 1.5rem;z-index: 100;display: grid;place-items: center;width: 48px;height: 48px;padding: 0;border: 1px solid rgba(255,255,255,0.4);border-radius: 50%;background: var(--primary-color);color: #fff;box-shadow: 0 6px 20px rgba(107,15,26,0.25);cursor: pointer;transition: background 0.2s, transform 0.2s;}
.back-to-top[hidden] {display: none;}
.back-to-top:hover {background: var(--primary-light);transform: translateY(-3px);}
@media (max-width: 600px) {.back-to-top {right: 1rem;bottom: 1rem;}}
@media (prefers-reduced-motion: reduce) {.back-to-top {transition: none;}}