/* Site footer - adapted from legacy ARPM_Website with design tokens */

.site-footer {
    background-color: var(--color-footer-bg);
    color: var(--color-footer-text);
    padding: clamp(3rem, 6vw, 4.5rem) 0 clamp(1.5rem, 3vw, 2.5rem);
    margin-top: 0;
}

.site-footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: clamp(1.5rem, 4vw, 3rem);
    margin-bottom: clamp(1.5rem, 4vw, 3rem);
}

.site-footer__logo {
    height: 1.875rem;
    width: auto;
    display: block;
    margin-bottom: 0.75rem;
}

.site-footer__desc {
    color: var(--color-footer-muted);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    line-height: var(--line-height-body);
    margin: 0 0 1.25rem;
    max-width: 22rem;
}

/* Newsletter signup - inline with footer brand column */
.newsletter-signup {
    margin-top: 0.25rem;
    max-width: 22rem;
}

.newsletter-signup__form {
    margin: 0;
}

.newsletter-signup__row {
    display: flex;
    align-items: stretch;
    gap: 0.5rem;
}

.newsletter-signup__input {
    flex: 1 1 auto;
    min-width: 0;
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    line-height: 1.4;
    padding: 0.5rem 0.65rem;
    border-radius: 4px;
    border: 1px solid var(--color-footer-border);
    background-color: var(--color-footer-bg);
    color: var(--color-footer-muted);
    transition:
        background-color var(--transition-fast),
        border-color var(--transition-fast),
        color var(--transition-fast);
}

.newsletter-signup__input::placeholder {
    color: var(--color-footer-muted);
    opacity: 0.9;
}

.newsletter-signup__input--idle:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.22);
    color: var(--color-footer-text);
}

.newsletter-signup__input--invalid {
    background-color: #f7f5f2;
    border-color: #c45c3a;
    color: #2f2b26;
}

.newsletter-signup__input--invalid:focus {
    outline: none;
    border-color: #d96a42;
}

.newsletter-signup__input--valid {
    background-color: #f7f5f2;
    border-color: #3d8f5a;
    color: #2f2b26;
}

.newsletter-signup__input--valid:focus {
    outline: none;
    border-color: #4aa36b;
}

.newsletter-signup__submit {
    flex: 0 0 auto;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 0.5rem 0.75rem;
    border-radius: 4px;
    border: 1px solid var(--color-footer-border);
    background: transparent;
    color: var(--color-footer-muted);
    cursor: not-allowed;
    opacity: 0.55;
    transition:
        background-color var(--transition-fast),
        border-color var(--transition-fast),
        color var(--transition-fast),
        opacity var(--transition-fast);
}

.newsletter-signup__submit:not(:disabled) {
    cursor: pointer;
    opacity: 1;
    color: var(--color-footer-text);
    border-color: rgba(255, 255, 255, 0.28);
}

.newsletter-signup__submit:not(:disabled):hover {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.4);
}

.newsletter-signup__message {
    margin: 0.5rem 0 0;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    line-height: 1.4;
}

.newsletter-signup__message--success {
    color: #9fd4b0;
}

.newsletter-signup__message--error {
    color: #e8a88a;
}

.site-footer__heading {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-footer-muted);
    margin: 0 0 1rem;
}

.site-footer__nav ul,
.site-footer__contact ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.site-footer__nav a,
.site-footer__contact a {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    color: var(--color-footer-link);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.site-footer__nav a:hover,
.site-footer__contact a:hover {
    color: var(--color-footer-text);
}

.site-footer__address {
    margin-top: 0.5rem;
    line-height: var(--line-height-body);
}

.site-footer__social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.site-footer__social-links a {
    color: var(--color-footer-muted);
    transition: color var(--transition-fast);
}

.site-footer__social-links a:hover {
    color: var(--color-footer-text);
}

.site-footer__bottom {
    border-top: 1px solid var(--color-footer-border);
    padding-top: clamp(1.25rem, 3vw, 2rem);
    text-align: center;
}

.site-footer__bottom small {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    color: var(--color-footer-muted);
}

.site-footer__separator {
    margin: 0 0.35rem;
    opacity: 0.65;
}

.site-footer__legal-link {
    color: var(--color-footer-muted);
    text-decoration: none;
}

.site-footer__legal-link:hover {
    color: var(--color-footer-text);
}

.site-footer__clear-data-btn {
    margin: 0;
    padding: 0;
    border: none;
    background: none;
    font: inherit;
    font-size: inherit;
    color: var(--color-footer-muted);
    text-decoration: none;
    cursor: pointer;
}

.site-footer__clear-data-btn:hover:not(:disabled) {
    color: var(--color-footer-text);
}

.site-footer__clear-data-btn:focus-visible {
    outline: 2px solid var(--color-footer-text);
    outline-offset: 2px;
}

.site-footer__clear-data-btn:disabled {
    opacity: 0.6;
    cursor: wait;
}

.site-footer__clear-data-message {
    margin: 0.5rem 0 0;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    line-height: 1.4;
}

.site-footer__clear-data-message--success {
    color: #9fd4b0;
}

.site-footer__clear-data-message--error {
    color: #e8a88a;
}

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

    .site-footer__brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 520px) {
    .site-footer__grid {
        grid-template-columns: 1fr;
    }
}