/* ==========================================================================
   Resources & Research Tools Stylesheet (resources.css)
   ========================================================================== */

/* ─── Resource Subcategory Headers ─── */
.resource-subcategory {
    grid-column: 1 / -1 !important;
    width: 100% !important;
    margin: 28px 0 14px 0 !important;
    padding: 14px 20px !important;
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.10) 0%, rgba(0, 33, 71, 0.05) 100%) !important;
    border-left: 5px solid var(--secondary-color, #3498db) !important;
    border-radius: 8px !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04) !important;
    display: block !important;
    box-sizing: border-box !important;
}

.resource-subcategory:first-of-type,
.resource-details > .resource-subcategory:first-child {
    margin-top: 8px !important;
}

.resource-subcategory h4 {
    margin: 0 0 5px 0 !important;
    color: var(--primary-color, #002147) !important;
    font-size: 1.18rem !important;
    font-weight: 700 !important;
    display: flex !important;
    align-items: center !important;
    gap: 9px !important;
    letter-spacing: -0.2px !important;
}

.resource-subcategory h4 i {
    color: var(--secondary-color, #3498db) !important;
    font-size: 1.05rem !important;
}

.resource-subcategory p,
.resource-subcategory .subcategory-goal {
    margin: 0 !important;
    color: #475569 !important;
    font-size: 0.93rem !important;
    line-height: 1.55 !important;
    text-align: left !important;
}

.resource-subcategory strong {
    color: var(--secondary-color, #3498db) !important;
}

[data-theme='dark'] .resource-subcategory {
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.18) 0%, rgba(15, 23, 42, 0.65) 100%) !important;
    border-left-color: #60a5fa !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25) !important;
}

[data-theme='dark'] .resource-subcategory h4 {
    color: #f1f5f9 !important;
}

[data-theme='dark'] .resource-subcategory h4 i {
    color: #60a5fa !important;
}

[data-theme='dark'] .resource-subcategory p {
    color: #94a3b8 !important;
}

[data-theme='dark'] .resource-subcategory strong {
    color: #93c5fd !important;
}

/* ─── Subcategory Interactive Filter Bars ─── */
.subcat-filter-container {
    background: linear-gradient(180deg, rgba(248, 250, 252, 0.95) 0%, rgba(241, 245, 249, 0.95) 100%);
    border-bottom: 1px solid rgba(226, 232, 240, 0.9);
    padding: 14px 20px 16px;
    border-radius: 12px 12px 0 0;
    margin: -4px 0 16px 0;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.02);
}

.subcat-filter-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
    gap: 12px;
    flex-wrap: wrap;
}

.subcat-filter-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.86rem;
    font-weight: 700;
    color: var(--primary-color, #002147);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.subcat-filter-title i {
    color: var(--secondary-color, #3498db);
    font-size: 0.95rem;
}

.subcat-filter-hint {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.82rem;
    color: #64748b;
}

.subcat-current-text strong {
    color: var(--secondary-color, #3498db);
}

.subcat-reset-btn {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.25);
    border-radius: 6px;
    padding: 3px 9px;
    font-size: 0.76rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.subcat-reset-btn:hover {
    background: #ef4444;
    color: #ffffff;
}

.subcat-pill-scroll {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 6px;
    padding-top: 2px;
    scrollbar-width: thin;
    scrollbar-color: rgba(52, 152, 219, 0.4) transparent;
    -webkit-overflow-scrolling: touch;
}

.subcat-pill-scroll::-webkit-scrollbar {
    height: 5px;
}

.subcat-pill-scroll::-webkit-scrollbar-thumb {
    background: rgba(52, 152, 219, 0.35);
    border-radius: 4px;
}

.subcat-pill {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 14px;
    border-radius: 30px;
    font-size: 0.81rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    background: #ffffff;
    color: #334155;
    border: 1px solid rgba(203, 213, 225, 0.85);
    transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    white-space: nowrap;
}

.subcat-pill i {
    color: var(--secondary-color, #3498db);
    font-size: 0.85rem;
    transition: color 0.2s ease;
}

.subcat-pill .pill-count {
    background: rgba(100, 116, 139, 0.12);
    color: #475569;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: 20px;
    min-width: 18px;
    text-align: center;
    transition: all 0.2s ease;
}

.subcat-pill:hover {
    background: rgba(52, 152, 219, 0.08);
    border-color: rgba(52, 152, 219, 0.4);
    color: var(--primary-color, #002147);
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(52, 152, 219, 0.15);
}

.subcat-pill.active {
    background: linear-gradient(135deg, #1d71e8 0%, #0056b3 100%);
    color: #ffffff !important;
    border-color: #1d71e8;
    box-shadow: 0 4px 12px rgba(29, 113, 232, 0.35);
}

.subcat-pill.active i {
    color: #ffffff !important;
}

.subcat-pill.active .pill-count {
    background: rgba(255, 255, 255, 0.28);
    color: #ffffff;
}

/* ─── Sidebar Nested Sub-Nav ─── */
.nav-collapsible-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 2px;
}

.nav-group-row {
    display: flex;
    align-items: center;
    gap: 4px;
    width: 100%;
}

.nav-group-row .protocol-nav-link {
    flex: 1;
}

.nav-sub-toggle {
    width: 32px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid transparent;
    border-radius: 8px;
    color: #64748b;
    cursor: pointer;
    font-size: 0.75rem;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.nav-sub-toggle:hover {
    background: rgba(52, 152, 219, 0.12);
    color: var(--secondary-color, #3498db);
    border-color: rgba(52, 152, 219, 0.25);
}

.nav-collapsible-group.is-open .nav-sub-toggle i {
    transform: rotate(180deg);
}

.nav-sub-toggle i {
    transition: transform 0.25s ease;
}

.nav-sub-list {
    display: none;
    flex-direction: column;
    gap: 3px;
    margin: 4px 0 6px 14px;
    padding-left: 10px;
    border-left: 2px solid rgba(52, 152, 219, 0.25);
}

.nav-collapsible-group.is-open .nav-sub-list {
    display: flex;
}

.nav-sub-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 5px 9px;
    border-radius: 6px;
    font-size: 0.76rem;
    font-weight: 600;
    color: #475569;
    text-decoration: none;
    transition: all 0.18s ease;
    background: transparent;
}

.nav-sub-link i {
    font-size: 0.72rem;
    color: var(--secondary-color, #3498db);
    width: 14px;
    text-align: center;
    margin-right: 4px;
}

.nav-sub-link span {
    display: inline-flex;
    align-items: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nav-sub-link small {
    background: rgba(100, 116, 139, 0.1);
    color: #64748b;
    font-size: 0.68rem;
    font-weight: 700;
    padding: 1px 6px;
    border-radius: 10px;
    flex-shrink: 0;
}

.nav-sub-link:hover {
    color: var(--secondary-color, #3498db);
    background: rgba(52, 152, 219, 0.08);
    transform: translateX(3px);
}

.nav-sub-link.active {
    color: #1d71e8;
    background: rgba(29, 113, 232, 0.12);
    font-weight: 700;
}

.nav-sub-link.active small {
    background: #1d71e8;
    color: #ffffff;
}

/* ─── Dark Mode Overrides ─── */
[data-theme='dark'] .subcat-filter-container {
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 41, 59, 0.85) 100%);
    border-bottom: 1px solid rgba(112, 170, 255, 0.12);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

[data-theme='dark'] .subcat-filter-title {
    color: #f1f5f9;
}

[data-theme='dark'] .subcat-filter-title i {
    color: #60a5fa;
}

[data-theme='dark'] .subcat-filter-hint {
    color: #94a3b8;
}

[data-theme='dark'] .subcat-current-text strong {
    color: #93c5fd;
}

[data-theme='dark'] .subcat-pill {
    background: rgba(15, 23, 42, 0.7);
    color: #cbd5e1;
    border-color: rgba(112, 170, 255, 0.15);
}

[data-theme='dark'] .subcat-pill i {
    color: #60a5fa;
}

[data-theme='dark'] .subcat-pill .pill-count {
    background: rgba(148, 163, 184, 0.15);
    color: #94a3b8;
}

[data-theme='dark'] .subcat-pill:hover {
    background: rgba(96, 165, 250, 0.15);
    border-color: rgba(96, 165, 250, 0.35);
    color: #f1f5f9;
}

[data-theme='dark'] .subcat-pill.active {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #ffffff !important;
    border-color: #60a5fa;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.45);
}

[data-theme='dark'] .subcat-pill.active i {
    color: #ffffff !important;
}

[data-theme='dark'] .subcat-pill.active .pill-count {
    background: rgba(255, 255, 255, 0.3);
    color: #ffffff;
}

[data-theme='dark'] .nav-sub-toggle {
    background: rgba(15, 23, 42, 0.6);
    border-color: rgba(112, 170, 255, 0.08);
    color: #94a3b8;
}

[data-theme='dark'] .nav-sub-toggle:hover {
    background: rgba(96, 165, 250, 0.15);
    color: #60a5fa;
    border-color: rgba(96, 165, 250, 0.3);
}

[data-theme='dark'] .nav-sub-list {
    border-left-color: rgba(96, 165, 250, 0.3);
}

[data-theme='dark'] .nav-sub-link {
    color: #cbd5e1;
}

[data-theme='dark'] .nav-sub-link i {
    color: #60a5fa;
}

[data-theme='dark'] .nav-sub-link small {
    background: rgba(148, 163, 184, 0.15);
    color: #94a3b8;
}

[data-theme='dark'] .nav-sub-link:hover {
    color: #60a5fa;
    background: rgba(96, 165, 250, 0.12);
}

[data-theme='dark'] .nav-sub-link.active {
    color: #93c5fd;
    background: rgba(96, 165, 250, 0.18);
}

[data-theme='dark'] .nav-sub-link.active small {
    background: #2563eb;
    color: #ffffff;
}