/* ============================================
   FOOTER STYLES
   ============================================ */

.site-footer {
    background: var(--color-white);
    border-top: 1px solid var(--color-border-light);
    font-size: var(--font-size-sm);
    border-bottom: 1px dotted var(--color-border-medium);
    margin-top: 5rem;
}

/* ============================================
   FOOTER MAIN (Logo + Columns + Certificate)
   ============================================ */

.footer-main {
    padding: 2.5rem 0 0 0;
}

/* === Logo === */

.footer-logo {
    margin-bottom: 40px;
}

.footer-logo-img {
    height: 64px;
    width: auto;
}

/* === 4 Columns === */

.footer-columns {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 40px;
    max-width: 65%;
}

.footer-column-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
    margin-bottom: 16px;
    text-transform: none;
}

.footer-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-menu li {
    margin: 0;
}

.footer-menu a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-base);
    display: inline-block;
}

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

/* === Certificate === */

.footer-certificate {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 24px 0 55px;
    border-bottom: 1px solid var(--color-border-light);
}

.certificate-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.certificate-logo {
    height: 32px;
    width: auto;
}

/* ============================================
   FOOTER BOTTOM (Social + Copyright + Credits)
   ============================================ */

.footer-bottom {
    background: var(--color-white);
    padding: 24px 0;
    /* Border top removed - dotted border jest na dole całego footera */
}

.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

/* === Social Icons === */

.footer-social {
    display: flex;
    gap: 8px;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: var(--color-gray-800);
    transition: color var(--transition-base), transform var(--transition-base);
}

.social-icon:hover {
    color: var(--color-primary);
    transform: translateY(-2px);
}

.social-icon svg {
    width: 32px;
    height: 32px;
}

/* === Copyright === */

.footer-copyright {
    flex: 1;
    text-align: center;
    font-size: 16px;
}

.copyright-main {
    color: #2E2E2E;
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
    margin: 0 0 4px 0;
}

.footer-credits {
    color: #8c8c8c;
    font-size: 11px;
    font-weight: 400;
    line-height: 1.6;
    margin: 0;
}

.footer-credits a {
    color: #8c8c8c;
    font-weight: 400;
    text-decoration: none; /* BEZ UNDERLINE! */
    transition: color var(--transition-base);
}

.copyright-credits a:hover {
    color: var(--color-primary);
}

/* === Credits Link === */

.footer-credits-link {
    text-align: right;
}

.footer-credits-link p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    margin: 0;
}

.footer-credits-link a {
    color: var(--color-gray-900);
    text-decoration: none;
    transition: color var(--transition-base);
}

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

/* ============================================
   RESPONSIVE - MOBILE
   ============================================ */

@media (max-width: 767px) {
    .footer-columns {
        max-width: 100%;
    }
    .footer-main {
        padding: 40px 0 32px;
    }

    /* Logo */
    .footer-logo {
        margin-bottom: 32px;
        text-align: center;
    }

    .footer-logo-img {
        height: 32px;
    }

    /* Columns: Stack vertically */
    .footer-columns {
        grid-template-columns: 1fr;
        gap: 32px;
        margin-bottom: 32px;
    }

    .footer-column-title {
        font-size: var(--font-size-base);
        margin-bottom: 12px;
    }

    .footer-menu {
        gap: 10px;
    }

    /* Certificate */
    .footer-certificate {
        justify-content: center;
        padding: 20px 0;
    }

    /* Bottom Bar: Stack vertically */
    .footer-bottom {
        padding: 20px 0;
    }

    .footer-bottom-inner {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }

    /* Social */
    .footer-social {
        order: 1;
        justify-content: center;
    }

    /* Copyright */
    .footer-copyright {
        order: 2;
    }
    
    .copyright-main {
        font-size: 14px;
    }
    
    .copyright-credits {
        font-size: 11px;
    }

    /* Credits */
    .footer-credits-link {
        order: 3;
        text-align: center;
    }
}

/* Tablet adjustments */
@media (min-width: 768px) and (max-width: 1024px) {
    .footer-columns {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
}