/* ==========================================================================
   Series Navigation Styles (Hugo Theme Stack Integration)
   ========================================================================== */

/* Top Banner */
.series-top-banner {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 12px;
    padding: 10px 16px;
    margin-top: 16px;
    background-color: var(--card-background);
    border: 1px solid var(--card-separator-color);
    border-left: 4px solid var(--accent-color);
    border-radius: 8px;
    font-size: 1.4rem;
}

.series-top-banner .series-badge {
    background-color: var(--accent-color);
    color: var(--accent-color-text);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 1.2rem;
    font-weight: bold;
}

.series-top-banner .series-title {
    font-weight: bold;
    color: var(--card-text-color-main);
    text-decoration: none;
}

.series-top-banner .series-title:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

.series-top-banner .series-count {
    color: var(--card-text-color-secondary);
    font-size: 1.3rem;
}

.series-top-banner .series-nav-links {
    margin-left: auto;
    display: flex;
    gap: 12px;
    font-size: 1.3rem;
}

.series-top-banner .series-nav-links a {
    color: var(--accent-color);
    text-decoration: none;
}

.series-top-banner .series-nav-links a:hover {
    text-decoration: underline;
}

/* Bottom Navigation Container */
.series-nav-container {
    margin-top: 24px;
    padding: 20px;
    background-color: var(--card-background);
    border: 1px solid var(--card-separator-color);
    border-radius: 10px;
}

.series-nav-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px dashed var(--card-separator-color);
}

.series-nav-header .series-badge {
    background-color: var(--accent-color);
    color: var(--accent-color-text);
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 1.2rem;
    font-weight: bold;
}

.series-nav-header .series-title {
    font-size: 1.6rem;
    font-weight: bold;
    color: var(--card-text-color-main);
    text-decoration: none;
}

.series-nav-header .series-title:hover {
    color: var(--accent-color);
}

.series-nav-header .series-count {
    margin-left: auto;
    font-size: 1.3rem;
    color: var(--card-text-color-secondary);
}

/* Navigation Grid */
.series-nav-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 12px;
    align-items: stretch;
}

.series-nav-card {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 12px 16px;
    background-color: var(--card-background);
    border: 1px solid var(--card-separator-color);
    border-radius: 8px;
    text-decoration: none;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.series-nav-card:hover {
    background-color: var(--card-background-selected);
    border-color: var(--accent-color);
}

.series-nav-card.prev {
    text-align: left;
}

.series-nav-card.next {
    text-align: right;
}

.series-nav-card.disabled {
    opacity: 0.35;
    pointer-events: none;
    background-color: transparent;
}

.series-nav-direction {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--accent-color);
    margin-bottom: 4px;
}

.series-nav-card.disabled .series-nav-direction {
    color: var(--card-text-color-secondary);
}

.series-nav-card-title {
    font-size: 1.3rem;
    line-height: 1.4;
    color: var(--card-text-color-main);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.series-nav-toc-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 16px;
    background-color: var(--card-background);
    border: 1px solid var(--card-separator-color);
    border-radius: 8px;
    text-decoration: none;
    font-size: 1.3rem;
    font-weight: bold;
    color: var(--accent-color);
    white-space: nowrap;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.series-nav-toc-btn:hover {
    border-color: var(--accent-color);
    background-color: var(--card-background-selected);
}

/* TOC Page "Read Episode 1" Button */
.series-nav-first-ep {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    background-color: var(--card-background);
    border: 2px solid var(--accent-color);
    border-radius: 8px;
    text-decoration: none;
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--card-text-color-main);
    transition: background-color 0.2s ease;
}

.series-nav-first-ep:hover {
    background-color: var(--card-background-selected);
}

.series-nav-first-ep-badge {
    color: var(--accent-color);
    margin-right: 8px;
}

/* Mobile responsive */
@media (max-width: 640px) {
    .series-nav-grid {
        grid-template-columns: 1fr;
    }
    .series-nav-card.next {
        text-align: left;
    }
    .series-nav-card.disabled {
        display: none;
    }
    .series-top-banner .series-nav-links {
        width: 100%;
        margin-left: 0;
        margin-top: 4px;
        justify-content: flex-end;
    }
}