.footer-section {
    background-color: var(--color-bg);
    color: var(--color-text);
    padding: var(--spacing-lg) var(--spacing-sm) var(--spacing-md);
    position: relative;
    overflow: hidden;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
}

/* Giant CTA */
.footer-cta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(var(--ink), 0.3);
}

.footer-giant-text {
    font-family: var(--font-primary);
    font-size: clamp(4rem, 15vw, 15rem);
    font-weight: 800;
    line-height: 0.85;
    letter-spacing: -0.05em;
    text-transform: none;
    margin: 0;
}

.footer-cta-btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 1px solid rgba(var(--ink), 0.3);
    color: var(--color-text);
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.footer-cta-btn svg {
    width: 48px;
    height: 48px;
    transition: transform 0.3s ease;
}

.footer-cta-btn:hover {
    background-color: var(--color-text);
    color: var(--color-bg);
    transform: scale(1.05);
}

.footer-cta-btn:hover svg {
    transform: rotate(-45deg);
}

/* Grid Layout */
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-md);
    padding-top: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-col-title {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.5;
    margin-bottom: var(--spacing-sm);
}

.footer-logo {
    font-family: var(--font-mono);
    font-size: var(--text-md);
    margin-bottom: var(--spacing-md);
    display: inline-block;
}

.footer-col-brand p {
    font-size: var(--text-lg);
    opacity: 0.7;
    max-width: 300px;
}

.footer-link {
    color: var(--color-text);
    text-decoration: none;
    font-size: var(--text-md);
    position: relative;
    width: fit-content;
    transition: opacity 0.3s ease;
}

.footer-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0%;
    height: 1px;
    background-color: currentColor;
    transition: width 0.3s ease;
}

.footer-link:hover {
    opacity: 1;
}

.footer-link:hover::after {
    width: 100%;
}

.footer-credit {
    opacity: 0.6;
    font-size: var(--text-xs);
}

.footer-credit .footer-link {
    display: inline;
    font-size: inherit;
}

/* Footer Bottom */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(var(--ink), 0.3);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    opacity: 0.8;
}

.back-to-top-btn {
    background: none;
    border: none;
    color: var(--color-text);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: opacity 0.3s ease;
    padding: 0;
}

.back-to-top-btn:hover {
    opacity: 1;
}

/* Responsive */
@media (max-width: 900px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .footer-cta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xl);
    }

    .footer-cta-btn {
        width: 80px;
        height: 80px;
    }

    .footer-cta-btn svg {
        width: 32px;
        height: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: flex-start;
    }
}