/*
 * WP Series Manager — Universal Stylesheet
 * Used by: widgets (front-end), admin settings page, term edit screens.
 * All widget and admin UI components share these variables and base rules.
 */

/* =====================================================
   CSS Custom Properties (Design Tokens)
   ===================================================== */
:root {
    --wpsm-color-primary:        #2563eb;
    --wpsm-color-primary-hover:  #1d4ed8;
    --wpsm-color-accent:         #f59e0b;
    --wpsm-color-surface:        #ffffff;
    --wpsm-color-surface-alt:    #f8fafc;
    --wpsm-color-border:         #e2e8f0;
    --wpsm-color-text:           #1e293b;
    --wpsm-color-text-muted:     #64748b;
    --wpsm-color-current-bg:     #eff6ff;
    --wpsm-color-current-border: #2563eb;
    --wpsm-color-current-text:   #1e40af;
    --wpsm-radius-sm:            4px;
    --wpsm-radius-md:            8px;
    --wpsm-radius-lg:            12px;
    --wpsm-shadow-sm:            0 1px 3px rgba(0, 0, 0, 0.08);
    --wpsm-shadow-md:            0 4px 12px rgba(0, 0, 0, 0.10);
    --wpsm-font-size-sm:         0.8125rem;
    --wpsm-font-size-base:       0.9375rem;
    --wpsm-font-size-label:      0.75rem;
    --wpsm-spacing-xs:           4px;
    --wpsm-spacing-sm:           8px;
    --wpsm-spacing-md:           16px;
    --wpsm-spacing-lg:           24px;
    --wpsm-transition:           150ms ease;
}

/* =====================================================
   Widget — Wrapper
   ===================================================== */
.widget.wpsm-widget,
.wpsm-series-widget {
    font-size: var(--wpsm-font-size-base);
    color: var(--wpsm-color-text);
}

/* Series label link */
.wpsm-series-label {
    font-size: var(--wpsm-font-size-label);
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--wpsm-color-text-muted);
    margin: 0 0 var(--wpsm-spacing-sm) 0;
}
.wpsm-series-label a {
    color: var(--wpsm-color-primary);
    text-decoration: none;
    transition: color var(--wpsm-transition);
}
.wpsm-series-label a:hover {
    color: var(--wpsm-color-primary-hover);
}

/* =====================================================
   Widget — Post List
   ===================================================== */
.wpsm-post-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--wpsm-spacing-sm);
}

/* ── Individual post item ── */
.wpsm-post-item {
    display: flex;
    align-items: flex-start;
    gap: var(--wpsm-spacing-sm);
    padding: var(--wpsm-spacing-sm) var(--wpsm-spacing-md);
    border-radius: var(--wpsm-radius-md);
    border: 1px solid transparent;
    background: var(--wpsm-color-surface);
    transition: box-shadow var(--wpsm-transition), background var(--wpsm-transition);
}

.wpsm-post-item:hover {
    box-shadow: var(--wpsm-shadow-sm);
    background: var(--wpsm-color-surface-alt);
}

/* ── Currently viewed post — differentiated styling ── */
.wpsm-post-item--current {
    background: var(--wpsm-color-current-bg);
    border-color: var(--wpsm-color-current-border);
    box-shadow: var(--wpsm-shadow-sm);
}

.wpsm-post-item--current .wpsm-post-title {
    font-weight: 700;
    color: var(--wpsm-color-current-text);
}

.wpsm-current-label {
    display: inline-block;
    font-size: var(--wpsm-font-size-label);
    font-weight: 700;
    color: var(--wpsm-color-current-text);
    background: var(--wpsm-color-primary);
    color: #fff;
    padding: 1px 6px;
    border-radius: var(--wpsm-radius-sm);
    margin-right: var(--wpsm-spacing-xs);
    vertical-align: middle;
}

/* ── Thumbnail ── */
.wpsm-thumb-link {
    flex-shrink: 0;
    display: block;
    line-height: 0;
}
.wpsm-thumb {
    display: block;
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: var(--wpsm-radius-sm);
}

/* ── Post text ── */
.wpsm-post-content {
    flex: 1;
    min-width: 0;
}
.wpsm-post-title {
    font-size: var(--wpsm-font-size-base);
    margin: 0 0 var(--wpsm-spacing-xs) 0;
    line-height: 1.4;
}
.wpsm-post-title a {
    color: var(--wpsm-color-text);
    text-decoration: none;
    transition: color var(--wpsm-transition);
}
.wpsm-post-title a:hover {
    color: var(--wpsm-color-primary);
}
.wpsm-post-excerpt {
    font-size: var(--wpsm-font-size-sm);
    color: var(--wpsm-color-text-muted);
    margin: 0;
    line-height: 1.5;
}

/* =====================================================
   Lock Icon (nav menus)
   ===================================================== */
.wpsm-lock-icon {
    font-style: normal;
    opacity: 0.75;
}

/* =====================================================
   Admin — Settings Page
   ===================================================== */
.wpsm-settings-wrap {
    max-width: 860px;
    margin-top: var(--wpsm-spacing-lg);
}

.wpsm-settings-title {
    font-size: 1.5rem;
    color: var(--wpsm-color-text);
    margin-bottom: var(--wpsm-spacing-md);
    padding-bottom: var(--wpsm-spacing-sm);
    border-bottom: 3px solid var(--wpsm-color-primary);
    display: inline-block;
}

.wpsm-settings-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--wpsm-spacing-sm);
    margin-bottom: var(--wpsm-spacing-lg);
}
.wpsm-settings-nav a {
    display: inline-flex;
    align-items: center;
    gap: var(--wpsm-spacing-xs);
    padding: 6px 14px;
    background: var(--wpsm-color-surface);
    border: 1px solid var(--wpsm-color-border);
    border-radius: var(--wpsm-radius-md);
    font-size: var(--wpsm-font-size-sm);
    color: var(--wpsm-color-primary);
    text-decoration: none;
    transition: background var(--wpsm-transition), box-shadow var(--wpsm-transition);
}
.wpsm-settings-nav a:hover {
    background: var(--wpsm-color-surface-alt);
    box-shadow: var(--wpsm-shadow-sm);
}

.wpsm-settings-form {
    background: var(--wpsm-color-surface);
    border: 1px solid var(--wpsm-color-border);
    border-radius: var(--wpsm-radius-lg);
    padding: var(--wpsm-spacing-lg);
    margin-bottom: var(--wpsm-spacing-lg);
    box-shadow: var(--wpsm-shadow-sm);
}

.wpsm-settings-info {
    background: var(--wpsm-color-surface);
    border: 1px solid var(--wpsm-color-border);
    border-radius: var(--wpsm-radius-lg);
    padding: var(--wpsm-spacing-lg);
    box-shadow: var(--wpsm-shadow-sm);
}
.wpsm-settings-info h2 {
    font-size: 1rem;
    color: var(--wpsm-color-text-muted);
    margin-top: 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.wpsm-info-table code {
    background: var(--wpsm-color-surface-alt);
    border: 1px solid var(--wpsm-color-border);
    border-radius: var(--wpsm-radius-sm);
    padding: 2px 6px;
    font-size: var(--wpsm-font-size-sm);
}

/* =====================================================
   Admin — Term Edit Screens (series / mini_series)
   ===================================================== */
.wpsm-series-field select,
.wpsm-series-field input[type="text"],
.wpsm-series-field input[type="url"] {
    border-radius: var(--wpsm-radius-sm);
    border: 1px solid var(--wpsm-color-border);
    padding: 6px 10px;
    font-size: var(--wpsm-font-size-base);
    transition: border-color var(--wpsm-transition), box-shadow var(--wpsm-transition);
}
.wpsm-series-field select:focus,
.wpsm-series-field input:focus {
    border-color: var(--wpsm-color-primary);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
    outline: none;
}

/* Mini Series meta box */
#mini-series-meta-box {
    font-size: var(--wpsm-font-size-base);
}
#mini-series-meta-box strong {
    display: block;
    margin: var(--wpsm-spacing-sm) 0 var(--wpsm-spacing-xs);
    color: var(--wpsm-color-primary);
}
#mini-series-meta-box ul {
    margin: 0 0 var(--wpsm-spacing-sm) var(--wpsm-spacing-md);
    padding: 0;
    list-style: none;
}
#mini-series-meta-box li {
    margin-bottom: var(--wpsm-spacing-xs);
}



/* =====================================================
   Widget — Pagination Controls
   ===================================================== */

.wpsm-pager {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--wpsm-spacing-sm);
}

/* Bottom pager: separator above, space above */
.wpsm-pager--bottom {
    margin-top: var(--wpsm-spacing-sm);
    padding-top: var(--wpsm-spacing-sm);
    border-top: 1px solid var(--wpsm-color-border);
}

/* Top pager: separator below, space below */
.wpsm-pager--top {
    margin-bottom: var(--wpsm-spacing-sm);
    padding-bottom: var(--wpsm-spacing-sm);
    border-bottom: 1px solid var(--wpsm-color-border);
}

.wpsm-pager__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    padding: 0;
    background: var(--wpsm-color-surface);
    border: 1px solid var(--wpsm-color-border);
    border-radius: var(--wpsm-radius-sm);
    color: var(--wpsm-color-primary);
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    transition: background var(--wpsm-transition), border-color var(--wpsm-transition), color var(--wpsm-transition);
}

.wpsm-pager__btn:hover:not(:disabled):not(.wpsm-pager__btn--disabled) {
    background: var(--wpsm-color-primary);
    border-color: var(--wpsm-color-primary);
    color: #fff;
}

.wpsm-pager__btn:disabled,
.wpsm-pager__btn--disabled {
    opacity: 0.35;
    cursor: default;
    pointer-events: none;
}

.wpsm-pager__info {
    flex: 1;
    text-align: center;
    font-size: var(--wpsm-font-size-sm);
    color: var(--wpsm-color-text-muted);
    user-select: none;
}

/* Loading state — dims the list while AJAX request is in flight */
.wpsm-post-list.wpsm-loading {
    opacity: 0.45;
    pointer-events: none;
    transition: opacity 150ms ease;
}

/* =====================================================
   Mini Series Ribbon
   Prepended before post content via the_content filter.
   Uses only existing design tokens — no new colours.
   ===================================================== */

.wpsm-ribbon {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0 var(--wpsm-spacing-xs);
    padding: var(--wpsm-spacing-sm) var(--wpsm-spacing-md);
    margin-bottom: var(--wpsm-spacing-md);

    /* Accent stripe on the left */
    border-left: 4px solid var(--wpsm-color-accent);
    border-radius: 0 var(--wpsm-radius-md) var(--wpsm-radius-md) 0;

    background: var(--wpsm-color-surface-alt);
    box-shadow: var(--wpsm-shadow-sm);

    font-size: var(--wpsm-font-size-sm);
    color: var(--wpsm-color-text-muted);
    line-height: 1.4;
}

/* "Part of" label */
.wpsm-ribbon__eyebrow {
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: var(--wpsm-font-size-label);
    color: var(--wpsm-color-text-muted);
    margin-right: var(--wpsm-spacing-xs);
    flex-shrink: 0;
}

/* Breadcrumb: Series › Mini Series */
.wpsm-ribbon__breadcrumb {
    display: inline-flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0 4px;
}

/* Parent Series link */
.wpsm-ribbon__series {
    color: var(--wpsm-color-text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--wpsm-transition);
}
.wpsm-ribbon__series:hover {
    color: var(--wpsm-color-primary);
    text-decoration: underline;
}

/* › separator */
.wpsm-ribbon__sep {
    color: var(--wpsm-color-border);
    font-size: 1rem;
    font-weight: 300;
    line-height: 1;
    user-select: none;
}

/* Mini Series name — the primary label, styled more prominently */
.wpsm-ribbon__mini {
    color: var(--wpsm-color-primary);
    text-decoration: none;
    font-weight: 700;
    transition: color var(--wpsm-transition);
}
.wpsm-ribbon__mini:hover {
    color: var(--wpsm-color-primary-hover);
    text-decoration: underline;
}

/* Stacked ribbons (multiple Mini Series on one post) */
.wpsm-ribbon + .wpsm-ribbon {
    margin-top: calc(-1 * var(--wpsm-spacing-sm));
    border-top: 1px solid var(--wpsm-color-border);
    border-radius: 0 0 var(--wpsm-radius-md) var(--wpsm-radius-md);
}

/* Responsive */
@media (max-width: 480px) {
    .wpsm-ribbon {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--wpsm-spacing-xs);
    }
}

/* =====================================================
   Responsive adjustments
   ===================================================== */
@media (max-width: 480px) {
    .wpsm-thumb {
        width: 48px;
        height: 48px;
    }
    .wpsm-settings-nav {
        flex-direction: column;
    }
}