/* ============================================================
   FOOTER — refinado, denso pero respirable
   ============================================================ */

.rtd-footer {
    position: relative;
    background: var(--rtd-bg-base);
    border-top: 1px solid var(--rtd-line);
    padding: var(--rtd-space-10) 0 var(--rtd-space-6);
    margin-top: var(--rtd-space-11);
    overflow: hidden;
}

/* Glow sutil de fondo */
.rtd-footer::before {
    content: '';
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 60%; height: 200px;
    background: radial-gradient(ellipse at top, var(--rtd-crimson-glow), transparent 70%);
    pointer-events: none;
    opacity: 0.5;
}

.rtd-footer-inner {
    position: relative;
    max-width: var(--rtd-content-default);
    margin: 0 auto;
    padding: 0 var(--rtd-space-5);
}

/* CTA final */
.rtd-footer-cta {
    text-align: center;
    margin-bottom: var(--rtd-space-10);
    padding-bottom: var(--rtd-space-10);
    border-bottom: 1px solid var(--rtd-line);
}
.rtd-footer-cta-title {
    font-size: clamp(28px, 3.5vw, 44px);
    font-weight: 300;
    line-height: 1.15;
    letter-spacing: -0.025em;
    margin: 0 0 var(--rtd-space-5) 0;
    color: var(--rtd-text);
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}
.rtd-footer-cta-title .accent {
    color: var(--rtd-crimson);
}
.rtd-footer-cta-actions {
    display: flex;
    justify-content: center;
    gap: var(--rtd-space-4);
    flex-wrap: wrap;
    margin-top: var(--rtd-space-7);
}

/* Columns */
.rtd-footer-cols {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--rtd-space-7);
    margin-bottom: var(--rtd-space-9);
}
@media (max-width: 900px) {
    .rtd-footer-cols {
        grid-template-columns: 1fr 1fr;
        gap: var(--rtd-space-6);
    }
}
@media (max-width: 540px) {
    .rtd-footer-cols { grid-template-columns: 1fr; }
}

.rtd-footer-col-title {
    font-family: var(--rtd-font-mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--rtd-text-subtle);
    margin: 0 0 var(--rtd-space-5) 0;
}

.rtd-footer-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--rtd-space-3);
}
.rtd-footer-list a {
    font-size: 14px;
    font-weight: 300;
    color: var(--rtd-text-muted);
    transition: color var(--rtd-dur-base) var(--rtd-ease-out);
}
.rtd-footer-list a:hover { color: var(--rtd-crimson-soft); }

/* Brand col */
.rtd-footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--rtd-space-5);
}
.rtd-footer-mission {
    font-size: 14px;
    font-weight: 300;
    line-height: 1.6;
    color: var(--rtd-text-muted);
    max-width: 320px;
}

/* Contact items */
.rtd-footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--rtd-space-3);
}
.rtd-footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: var(--rtd-space-3);
    font-size: 14px;
    color: var(--rtd-text-muted);
}
.rtd-footer-contact svg {
    width: 16px; height: 16px;
    flex-shrink: 0;
    margin-top: 2px;
    color: var(--rtd-crimson);
}
.rtd-footer-contact a {
    color: inherit;
    transition: color var(--rtd-dur-base) var(--rtd-ease-out);
}
.rtd-footer-contact a:hover { color: var(--rtd-crimson-soft); }

/* Bottom strip */
.rtd-footer-bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--rtd-space-4);
    padding-top: var(--rtd-space-6);
    border-top: 1px solid var(--rtd-line);
}
.rtd-footer-copy {
    font-size: 12px;
    color: var(--rtd-text-dim);
    font-weight: 300;
}
.rtd-footer-legal {
    display: flex;
    gap: var(--rtd-space-5);
    list-style: none;
    margin: 0;
    padding: 0;
}
.rtd-footer-legal a {
    font-size: 12px;
    color: var(--rtd-text-dim);
}
.rtd-footer-legal a:hover { color: var(--rtd-crimson-soft); }