/* ================================================================
   FOOTER — Eco Nano
   Fraunces + DM Sans · Gold #e8a020 · Dark #1a1714
   ================================================================ */

.site-footer {
    font-family: 'DM Sans', sans-serif;
    background: #1a1714;
    color: rgba(255,255,255,.55);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5rem;
}

/* ================================================================
   TOP
   ================================================================ */
.footer-top {
    padding: 5rem 0 4rem;
    border-bottom: 1px solid rgba(255,255,255,.06);
}

.footer-top .footer-container {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
    gap: 4rem;
    align-items: start;
}

/* ── Brand ── */
.footer-logo-wrap {
    display: flex;
    flex-direction: column;
    gap: 3px;
    margin-bottom: 1.25rem;
}

.footer-logo {
    font-family: 'DM Sans', sans-serif;
    font-size: 18px;
    font-weight: 500;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: #fff;
    line-height: 1;
}

.footer-logo em {
    font-style: normal;
    color: #e8a020;
}

.footer-logo-sub {
    font-size: 9px;
    letter-spacing: .25em;
    text-transform: uppercase;
    color: rgba(255,255,255,.3);
}

.footer-brand-desc {
    font-size: 13px;
    line-height: 1.75;
    color: rgba(255,255,255,.45);
    font-weight: 300;
    margin-bottom: 1.75rem;
    max-width: 280px;
}

.footer-social {
    display: flex;
    gap: .6rem;
}

.footer-social-link {
    width: 36px; height: 36px;
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,.45);
    text-decoration: none;
    font-size: 13px;
    transition: border-color .3s, color .3s, background .3s;
}

.footer-social-link:hover {
    border-color: #e8a020;
    color: #e8a020;
    background: rgba(232,160,32,.06);
}

/* ── Heading ── */
.footer-heading {
    font-family: 'DM Sans', sans-serif;
    font-size: 10px;
    letter-spacing: .25em;
    text-transform: uppercase;
    color: rgba(255,255,255,.3);
    font-weight: 500;
    margin: 0 0 1.5rem 0;
    padding-bottom: .75rem;
    border-bottom: 1px solid rgba(255,255,255,.06);
}

/* ── Nav ── */
.footer-links {
    list-style: none;
    margin: 0; padding: 0;
    display: flex;
    flex-direction: column;
    gap: .6rem;
}

.footer-links a {
    text-decoration: none;
    font-size: 14px;
    color: rgba(255,255,255,.5);
    font-weight: 300;
    transition: color .3s, padding-left .3s;
    display: inline-block;
}

.footer-links a:hover {
    color: #e8a020;
    padding-left: .4rem;
}

/* ── Contact ── */
.footer-contact-list {
    list-style: none;
    margin: 0; padding: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-contact-list li {
    display: flex;
    align-items: flex-start;
    gap: .75rem;
    font-size: 13px;
    color: rgba(255,255,255,.5);
    font-weight: 300;
    line-height: 1.6;
}

.footer-contact-icon {
    color: #e8a020;
    font-size: .9rem;
    flex-shrink: 0;
    margin-top: .1rem;
    opacity: .8;
}

.footer-contact-list a {
    color: rgba(255,255,255,.5);
    text-decoration: none;
    transition: color .3s;
}

.footer-contact-list a:hover { color: #e8a020; }

/* ── Partner box ── */
.footer-partner {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-partner-label {
    font-size: 9px;
    letter-spacing: .25em;
    text-transform: uppercase;
    color: rgba(255,255,255,.25);
}

.footer-partner-box {
    border: 1px solid rgba(232,160,32,.2);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    background: rgba(232,160,32,.04);
    display: flex;
    flex-direction: column;
    gap: .3rem;
}

.footer-partner-name {
    font-family: 'Fraunces', serif;
    font-size: 1.6rem;
    font-weight: 300;
    font-style: italic;
    color: #fff;
    letter-spacing: -.02em;
    line-height: 1;
}

.footer-partner-name em {
    font-style: normal;
    color: #e8a020;
}

.footer-partner-sub {
    font-size: 10px;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: rgba(255,255,255,.3);
}

.footer-partner-desc {
    font-size: 12px;
    line-height: 1.7;
    color: rgba(255,255,255,.35);
    font-weight: 300;
    margin: 0;
}

/* ================================================================
   CERTS STRIP
   ================================================================ */
.footer-certs {
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(255,255,255,.06);
}

.footer-certs .footer-container {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    flex-wrap: wrap;
}

.footer-certs-label {
    font-size: 9px;
    letter-spacing: .24em;
    text-transform: uppercase;
    color: rgba(255,255,255,.2);
    white-space: nowrap;
    flex-shrink: 0;
}

.footer-certs-logos {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    flex-wrap: wrap;
}

.footer-cert-logo {
    height: 26px; width: auto;
    object-fit: contain;
    filter: grayscale(1) brightness(2);
    opacity: .2;
    transition: opacity .35s, filter .35s;
}

.footer-cert-logo:hover {
    filter: grayscale(0) brightness(1);
    opacity: .85;
}

/* ================================================================
   BOTTOM
   ================================================================ */
.footer-bottom {
    padding: 1.5rem 0;
}

.footer-bottom .footer-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-copy {
    font-size: 11px;
    color: rgba(255,255,255,.2);
    letter-spacing: .08em;
    margin: 0;
}

.footer-bottom-links {
    display: flex;
    gap: 2rem;
}

.footer-bottom-links a {
    font-size: 11px;
    color: rgba(255,255,255,.2);
    text-decoration: none;
    letter-spacing: .05em;
    transition: color .3s;
}

.footer-bottom-links a:hover { color: #e8a020; }

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 1100px) {
    .footer-container { padding: 0 2.5rem; }
    .footer-top .footer-container { grid-template-columns: 1fr 1fr; gap: 3rem; }
}

@media (max-width: 768px) {
    .footer-container { padding: 0 1.5rem; }
    .footer-top { padding: 3.5rem 0 3rem; }
    .footer-top .footer-container { grid-template-columns: 1fr; gap: 2.5rem; }
    .footer-brand-desc { max-width: 100%; }
    .footer-certs .footer-container { gap: 1.5rem; }
    .footer-bottom .footer-container { flex-direction: column; align-items: flex-start; gap: 1rem; }
}

/* Nano4Life link button */
.footer-partner-link {
    text-decoration: none;
    transition: border-color .3s, background .3s;
    cursor: pointer;
}

.footer-partner-link:hover {
    border-color: rgba(232,160,32,.5);
    background: rgba(232,160,32,.08);
}

.footer-partner-arrow {
    font-size: 10px;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: #e8a020;
    margin-top: .5rem;
    display: flex;
    align-items: center;
    gap: .4rem;
    transition: gap .3s;
}

.footer-partner-link:hover .footer-partner-arrow {
    gap: .7rem;
}