/* ================================================================
   FOOTER.CSS — Nexora universal site footer
   Depends on root-tokens.css + core.css. Styles the footer markup
   shared across pages: footer-section > footer-context >
   footer-top (footer-brand + footer-cols) + footer-divider + footer-bottom.

   Sits on --color-surface, same "deeper than the page" treatment
   as the header, so it reads as its own band at the bottom.
   ================================================================ */

.footer-section {
    background: var(--color-surface);
}

.footer-context {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-64) var(--space-40) var(--space-40);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    gap: var(--space-64);
    padding-bottom: var(--space-48);
}

/* ----------------------------------------------------------------
   BRAND — logo, blurb, newsletter signup
   ---------------------------------------------------------------- */
.footer-brand {
    flex: none;
    max-width: 320px;
    display: flex;
    flex-direction: column;
    gap: var(--space-16);
}

.footer-brand .logo-link {
    align-self: flex-start;
}

.footer-brand-text {
    font-family: var(--font-family-sans);
    font-size: var(--font-size-sm);
    line-height: var(--leading-relaxed);
    color: var(--color-text-secondary);
}

.footer-newsletter-form {
    display: flex;
    gap: var(--space-8);
    padding: var(--space-4);
    background: var(--color-background);
    border: var(--border-width-thin) solid var(--color-border);
    border-radius: var(--radius-full);
    transition: border-color var(--duration-base) var(--ease-standard);
}

.footer-newsletter-form:focus-within {
    border-color: var(--color-primary);
}

.footer-newsletter-input {
    flex: 1;
    min-width: 0;
    padding: var(--space-4) var(--space-12);
    font-family: var(--font-family-sans);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    outline: none;
}

.footer-newsletter-input::placeholder {
    color: var(--color-text-secondary);
}

.footer-newsletter-input:-webkit-autofill,
.footer-newsletter-input:-webkit-autofill:hover,
.footer-newsletter-input:-webkit-autofill:focus,
.footer-newsletter-input:autofill {
    -webkit-text-fill-color: var(--color-text);
    -webkit-box-shadow: 0 0 0px 1000px var(--color-background) inset;
    box-shadow: 0 0 0px 1000px var(--color-background) inset;
    transition: background-color 5000s ease-in-out 0s;
}

.footer-newsletter-submit {
    padding: var(--space-4) var(--space-12);
    font-family: var(--font-family-sans);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-600);
    white-space: nowrap;
    color: var(--color-text-on-primary);
    background: var(--color-primary);
    border-radius: var(--radius-full);
    transition: background var(--duration-fast) var(--ease-standard);
}

.footer-newsletter-submit:hover {
    background: var(--color-primary-hover);
}

.footer-newsletter-submit:active {
    background: var(--color-primary-active);
}

/* ----------------------------------------------------------------
   LINK COLUMNS
   ---------------------------------------------------------------- */
.footer-cols {
    flex: 1;
    display: flex;
    justify-content: flex-start;
    gap: var(--space-80);
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: var(--space-12);
    min-width: 140px;
}

.footer-col-title {
    font-family: var(--font-family-sans);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-600);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    color: var(--color-text-secondary);
    padding-bottom: var(--space-4);
    border-bottom: var(--border-width-thin) solid var(--color-border);
}

.footer-col-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

.footer-link {
    font-family: var(--font-family-sans);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-500);
    color: var(--color-text-secondary);
    transition: color var(--duration-fast) var(--ease-standard);
}

.footer-link:hover {
    color: var(--color-primary-hover);
}

/* ----------------------------------------------------------------
   DIVIDER + BOTTOM CREDITS
   ---------------------------------------------------------------- */
.footer-divider {
    border: none;
    border-top: var(--border-width-thin) solid var(--color-border);
    margin: 0;
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-24);
    font-family: var(--font-family-sans);
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

.footer-bottom-copyright {
    color: var(--color-text-secondary);
}

.footer-bottom-meta {
    display: flex;
    align-items: center;
    gap: var(--space-16);
}

.footer-bottom-country {
    color: var(--color-text-secondary);
}

.footer-bottom-version {
    font-family: var(--font-family-mono);
    color: var(--color-text-secondary);
}

.footer-socials {
    display: flex;
    align-items: center;
    gap: var(--space-16);
}

.footer-social-link {
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-social-icon {
    width: 16px;
    height: 16px;
    opacity: 0.7;
    transition: opacity var(--duration-fast) var(--ease-standard);
}

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

/* ----------------------------------------------------------------
   RESPONSIVE
   ---------------------------------------------------------------- */
@media (max-width: 900px) {
    .footer-context {
        padding: var(--space-48) var(--space-24) var(--space-32);
    }

    .footer-top {
        flex-direction: column;
        gap: var(--space-40);
    }

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

    .footer-cols {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-32) var(--space-24);
    }

    .footer-col {
        min-width: 0;
    }
}

@media (max-width: 480px) {
    .footer-cols {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-8);
    }

    .footer-socials {
        order: 1;
    }
}