/* ═══════════════════════════════════════════════════
   TDN MAGAZINE — ENHANCEMENTS
   Back to top, breadcrumbs, continue reading
═══════════════════════════════════════════════════ */

/* ── Back to Top ─────────────────────────────────── */
#tdn-back-top {
    position: fixed;
    bottom: 28px;
    right: 24px;
    width: 44px;
    height: 44px;
    background: var(--tdn-red);
    color: #fff;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 900;
    box-shadow: 0 4px 16px rgba(0,0,0,.18);
    opacity: 0;
    transform: translateY(12px);
    transition: opacity .25s, transform .25s, background .15s;
    pointer-events: none;
}

#tdn-back-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

#tdn-back-top:hover {
    background: var(--tdn-red-dark);
}

#tdn-back-top svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

@media (max-width: 600px) {
    #tdn-back-top { bottom: 16px; right: 14px; }
}

/* ── Breadcrumbs ─────────────────────────────────── */
.tdn-breadcrumbs {
    max-width: var(--container);
    margin: 0 auto;
    padding: 12px var(--gutter) 0;
    font-size: .78rem;
    color: var(--tdn-muted);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px;
}

.tdn-bc-link {
    color: var(--tdn-muted);
    text-decoration: none;
    transition: color .15s;
}

.tdn-bc-link:hover { color: var(--tdn-red); }

.tdn-bc-sep {
    color: var(--tdn-border);
    font-size: .7rem;
    margin: 0 2px;
}

.tdn-bc-current {
    color: var(--tdn-black);
    font-weight: 500;
    /* Truncate long titles */
    max-width: 280px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: inline-block;
    vertical-align: middle;
}

/* ── Continue Reading ────────────────────────────── */
.tdn-continue {
    margin: 0 0 40px;
    opacity: 1;
    transition: opacity .3s;
}

.tdn-continue .tdn-section-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 3px solid var(--tdn-black);
}

.tdn-continue-clear {
    margin-left: auto;
    background: none;
    border: none;
    font-size: .75rem;
    font-weight: 600;
    color: var(--tdn-muted);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius);
    transition: color .15s, background .15s;
    white-space: nowrap;
}

.tdn-continue-clear:hover {
    color: var(--tdn-red);
    background: var(--tdn-bg-soft);
}

.tdn-continue-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

@media (max-width: 1024px) {
    .tdn-continue-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 600px) {
    .tdn-continue-grid { grid-template-columns: repeat(2, 1fr); }
}

.tdn-continue-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tdn-continue-thumb {
    display: block;
    aspect-ratio: 16/9;
    overflow: hidden;
    border-radius: var(--radius);
    background: var(--tdn-bg-soft);
}

.tdn-continue-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .35s;
}

.tdn-continue-thumb:hover img { transform: scale(1.05); }

.tdn-continue-body {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.tdn-continue-title {
    font-family: var(--font-display);
    font-size: .85rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--tdn-black);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-decoration: none;
    transition: color .15s;
}

.tdn-continue-title:hover { color: var(--tdn-red); }