/* =============================================================
   TNAADO Footer — cinematic dark, 5-column
   Tokens: --ink (#0a0a0a), --red (#c8102e), --on-black (#f5f1e8),
           --on-black-mute, --font-mono (JetBrains Mono),
           --font-body (IBM Plex Sans), --text-xs, --text-sm, --text-2xl
   Voice: ominous, refined, private firm. Less aggressive than the header
   (no idle CTA glow, no animated underlines on every link).
   ============================================================= */

.tnaado-footer {
    width: 100%;
    background: var(--ink);
    color: var(--on-black);
    padding: 96px 0 32px;
    position: relative;
    isolation: isolate;
}

/* Subtle red-mist top edge — bookend signal that mirrors header's red line */
.tnaado-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(
        to right,
        transparent 0%,
        rgba(200, 16, 46, 0.32) 30%,
        rgba(200, 16, 46, 0.32) 70%,
        transparent 100%
    );
    z-index: 1;
}

.tnaado-footer__inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
}

/* 5-column grid: brand 1.4fr | practices | company | tools | legal */
.tnaado-footer__grid {
    display: grid;
    grid-template-columns: 1.4fr repeat(4, minmax(0, 1fr));
    gap: 56px;
    padding-bottom: 56px;
}

/* Col 1 — Brand =================================================== */

.tnaado-footer__brand {
    display: flex;
    flex-direction: column;
    gap: 18px;
    max-width: 360px;
}

.tnaado-footer__logo {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    line-height: 0;
}

.tnaado-footer__logo-img {
    height: 44px;
    width: auto;
    max-width: 220px;
    display: block;
    filter: brightness(0) invert(1) opacity(0.92)
            drop-shadow(0 0 12px rgba(200, 16, 46, 0.18));
    transition: filter 600ms ease-out;
}

.tnaado-footer__logo:hover .tnaado-footer__logo-img,
.tnaado-footer__logo:focus-visible .tnaado-footer__logo-img {
    filter: brightness(0) invert(1) opacity(1)
            drop-shadow(0 0 18px rgba(200, 16, 46, 0.40))
            drop-shadow(0 0 32px rgba(200, 16, 46, 0.20));
}

/* Legacy wordmark text fallback (kept in case logo image fails) */
.tnaado-footer__wordmark {
    font-family: var(--font-mono);
    font-size: var(--text-2xl);
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.tnaado-footer__tagline {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    line-height: 1.6;
    color: var(--on-black-mute);
    margin: 0;
    max-width: 32ch;
}

.tnaado-footer__address {
    font-family: var(--font-body);
    font-style: normal;
    font-size: var(--text-sm);
    line-height: 1.6;
    color: var(--on-black-mute);
    margin: 0;
    max-width: 32ch;
}

/* Cols 2–5 — Link columns ========================================= */

.tnaado-footer__col {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-width: 0;
}

.tnaado-footer__heading {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--on-black);
    margin: 0 0 18px;
}

.tnaado-footer__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tnaado-footer__list a {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 400;
    color: var(--on-black-mute);
    text-decoration: none;
    line-height: 1.55;
    transition: color 400ms ease-out;
    display: inline-block;
    padding: 4px 0;
}

.tnaado-footer__list a:hover,
.tnaado-footer__list a:focus-visible {
    color: var(--red);
    outline: none;
}

/* Red hairline ==================================================== */

.tnaado-footer__hairline {
    height: 1px;
    width: 100%;
    background: linear-gradient(
        to right,
        transparent 0%,
        rgba(200, 16, 46, 0.40) 20%,
        rgba(200, 16, 46, 0.40) 80%,
        transparent 100%
    );
    margin: 0 0 24px;
}

/* Refine link hover — subtle red glow halo on focus, no underline */
.tnaado-footer__list a {
    transition: color 600ms ease-out, text-shadow 600ms ease-out, padding-left 400ms ease-out;
}

.tnaado-footer__list a:hover,
.tnaado-footer__list a:focus-visible {
    text-shadow: 0 0 10px rgba(200, 16, 46, 0.30);
}

/* Bottom bar ====================================================== */

.tnaado-footer__bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-top: 8px;
}

.tnaado-footer__copyright,
.tnaado-footer__cities,
.tnaado-footer__sister {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--on-black-mute);
    margin: 0;
}

.tnaado-footer__sister {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.tnaado-footer__sister a {
    color: var(--on-black);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    padding-bottom: 1px;
    transition: color 400ms ease-out, border-color 400ms ease-out;
}

.tnaado-footer__sister a:hover,
.tnaado-footer__sister a:focus-visible {
    color: var(--red);
    border-bottom-color: var(--red);
    outline: none;
}

/* Responsive ====================================================== */

@media (max-width: 1024px) {
    .tnaado-footer {
        padding: 80px 0 24px;
    }

    .tnaado-footer__inner {
        padding: 0 24px;
    }

    /* 2 cols on tablet, brand spans full row */
    .tnaado-footer__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 40px;
    }

    .tnaado-footer__brand {
        grid-column: 1 / -1;
        max-width: 480px;
    }
}

@media (max-width: 640px) {
    .tnaado-footer {
        padding: 64px 0 24px;
    }

    .tnaado-footer__grid {
        grid-template-columns: 1fr;
        gap: 36px;
        padding-bottom: 40px;
    }

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

    .tnaado-footer__bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}

/* ===== Entrance animation ===== */

@keyframes footer-rise {
    from {
        opacity: 0;
        transform: translateY(32px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tnaado-footer {
    opacity: 1;
}

.tnaado-footer.is-visible {
    animation: footer-rise 900ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Stagger columns inside the grid */
.tnaado-footer.is-visible .tnaado-footer__brand { animation-delay: 0ms; }
.tnaado-footer.is-visible .tnaado-footer__col:nth-child(2) { animation-delay: 60ms; }
.tnaado-footer.is-visible .tnaado-footer__col:nth-child(3) { animation-delay: 120ms; }
.tnaado-footer.is-visible .tnaado-footer__col:nth-child(4) { animation-delay: 180ms; }
.tnaado-footer.is-visible .tnaado-footer__col:nth-child(5) { animation-delay: 240ms; }

.tnaado-footer.is-visible .tnaado-footer__brand,
.tnaado-footer.is-visible .tnaado-footer__col {
    animation: footer-rise 900ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* Logo shimmer pulse — subtle idle glow every 6s */
@keyframes logo-idle-pulse {
    0%, 85%, 100% {
        filter: brightness(0) invert(1) opacity(0.92)
                drop-shadow(0 0 12px rgba(200, 16, 46, 0.18));
    }
    90% {
        filter: brightness(0) invert(1) opacity(1)
                drop-shadow(0 0 22px rgba(200, 16, 46, 0.45))
                drop-shadow(0 0 44px rgba(200, 16, 46, 0.18));
    }
}

.tnaado-footer__logo-img {
    animation: logo-idle-pulse 6s ease-in-out infinite 2s;
}

/* On hover, cancel the idle cycle and jump to full glow */
.tnaado-footer__logo:hover .tnaado-footer__logo-img,
.tnaado-footer__logo:focus-visible .tnaado-footer__logo-img {
    animation: none;
    filter: brightness(0) invert(1) opacity(1)
            drop-shadow(0 0 18px rgba(200, 16, 46, 0.50))
            drop-shadow(0 0 36px rgba(200, 16, 46, 0.25));
}

/* Link hover — indent nudge */
.tnaado-footer__list a:hover,
.tnaado-footer__list a:focus-visible {
    padding-left: 4px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .tnaado-footer,
    .tnaado-footer__brand,
    .tnaado-footer__col {
        animation: none !important;
        opacity: 1 !important;
        transform: none !important;
    }
    .tnaado-footer * {
        transition: none !important;
    }
}