/* =========================================================
   FOOTER
   Global site footer (System A). Brand-forward layout with a
   gradient top accent, soft berry glow, a faded wordmark
   watermark, and clean link columns over a copyright bar.
========================================================= */
.site-footer {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(ellipse 50% 120% at 12% 0%, var(--color-primary-soft), transparent 60%),
        var(--surface-primary);
    padding: var(--space-20) var(--space-8) var(--space-8);
    color: var(--text-muted);
}

/* Gradient top accent */
.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-secondary), var(--color-primary));
}

/* Large faded brand signature */
.footer-watermark {
    position: absolute;
    left: 50%;
    bottom: -0.28em;
    transform: translateX(-50%);
    font-family: var(--font-brand);
    font-weight: var(--font-bold);
    font-size: clamp(5rem, 20vw, 17rem);
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    opacity: 0.04;
    white-space: nowrap;
    pointer-events: none;
    user-select: none;
}

.footer-inner {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
}

/* =========================================================
   TOP: brand + link columns
========================================================= */
.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 2.5fr;
    gap: var(--space-16);
    padding-bottom: var(--space-16);
}

/* --- Brand block --- */
.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    max-width: 380px;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    width: fit-content;
}

.footer-logo-mark {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-logo-mark img {
    width: 100%;
    height: 100%;
    display: block;
}

.footer-logo-text {
    font-family: var(--font-brand);
    font-size: 1.625rem;
    font-weight: var(--font-semi-bold);
    letter-spacing: -0.01em;
    line-height: 1;
    color: var(--text-primary);
}

/* recolor ONLY the "i" tittle: a hard-stop gradient clipped to the glyph. */
.footer-logo-text .brand-i {
    color: transparent;
    background-image: linear-gradient(
        to bottom,
        var(--color-primary) 0 0.40em,
        var(--text-primary) 0.40em
    );
    -webkit-background-clip: text;
    background-clip: text;
}

.footer-desc {
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: var(--text-muted);
}

/* --- Social --- */
.footer-social {
    list-style: none;
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-1);
}

.footer-social-link {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    border: 1px solid var(--border-primary);
    background: var(--surface-secondary);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-base);
    text-decoration: none;
    transition: color var(--transition-fast),
        border-color var(--transition-fast),
        background var(--transition-fast),
        transform var(--transition-fast);
}

.footer-social-link:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: var(--color-primary-soft);
    transform: translateY(-2px);
}

/* --- Link columns --- */
.footer-nav {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: var(--space-8);
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.footer-col-title {
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: var(--font-semi-bold);
    color: var(--text-primary);
}

.footer-col-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-col-links a {
    font-size: var(--text-sm);
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.footer-col-links a:hover {
    color: var(--color-primary);
    padding-left: 3px;
}

.footer-link-strong {
    color: var(--text-secondary) !important;
    font-weight: var(--font-semi-bold);
}

/* =========================================================
   BOTTOM BAR
========================================================= */
.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding-top: var(--space-8);
    border-top: 1px solid var(--border-subtle);
}

.footer-copy {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.footer-note {
    font-size: var(--text-sm);
    color: var(--text-disabled);
}

/* =========================================================
   RESPONSIVE
========================================================= */
@media (max-width: 900px) {
    .footer-top {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }

    .footer-brand {
        max-width: none;
    }
}

@media (max-width: 640px) {
    .site-footer {
        padding: var(--space-16) var(--space-5) var(--space-6);
    }

    .footer-nav {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-10) var(--space-6);
    }

    /* Builders (long column) stays left and spans both rows so Company
       and Legal stack in the right column instead of leaving it empty. */
    .footer-nav .footer-col:first-child {
        grid-column: 1;
        grid-row: 1 / span 2;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: var(--space-2);
    }

    .footer-watermark {
        font-size: 32vw;
    }
}