:root {
    /* Color Palette - Modern Indigo & Emerald Theme */
    --bg-main: #0b0f19;
    --bg-surface: #111827;
    --bg-surface-elevated: #1f2937;
    --bg-surface-card: rgba(26, 34, 52, 0.7);
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-focus: rgba(99, 102, 241, 0.5);

    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.25);
    
    --accent: #06b6d4;
    --accent-glow: rgba(6, 182, 212, 0.25);

    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.12);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.12);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.12);

    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;

    --sidebar-width: 270px;
    --sidebar-collapsed-width: 82px;
    --topbar-height: 70px;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;

    --card-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.35), 0 0 0 1px var(--border-subtle);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Variables */
[data-theme="light"] {
    --bg-main: #f3f4f8;
    --bg-surface: #ffffff;
    --bg-surface-elevated: #ffffff;
    --bg-surface-card: rgba(255, 255, 255, 0.85);
    --border-subtle: rgba(0, 0, 0, 0.08);
    --border-focus: rgba(99, 102, 241, 0.4);

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;

    --card-shadow: 0 10px 25px -3px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04), 0 0 0 1px var(--border-subtle);
}

/* Base Resets */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
    background-image: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.06) 0%, transparent 40%),
                      radial-gradient(circle at 90% 80%, rgba(6, 182, 212, 0.06) 0%, transparent 40%);
}

/* Layout */
.app-container {
    display: flex;
    width: 100%;
    min-height: 100vh;
    position: relative;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-surface);
    border-right: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    padding: 1.5rem 1.2rem 1rem;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 50;
    backdrop-filter: blur(12px);
    transition: var(--transition-smooth);
    overflow: hidden;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
    padding: 1.5rem 0.8rem;
}

.brand-section {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 2rem;
    padding-left: 0.5rem;
}

.brand-logo-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 15px var(--primary-glow);
    flex-shrink: 0;
}

.brand-name {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(120deg, #ffffff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: opacity 0.2s;
    white-space: nowrap;
}

[data-theme="light"] .brand-name {
    background: linear-gradient(120deg, #0f172a, #334155);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar.collapsed .brand-name,
.sidebar.collapsed .nav-text,
.sidebar.collapsed .badge,
.sidebar.collapsed .sidebar-footer-text {
    display: none;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    min-height: 0;
    padding-right: 2px;
    margin-right: -2px;
}

.nav-category {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    padding: 1.2rem 0.8rem 0.4rem;
}

.sidebar.collapsed .nav-category {
    text-align: center;
    font-size: 0.6rem;
    padding: 1rem 0 0.4rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.92rem;
    transition: var(--transition-smooth);
    position: relative;
}

.sidebar.collapsed .nav-link {
    justify-content: center;
    padding: 0.75rem 0;
}

.nav-link svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

[data-theme="light"] .nav-link:hover {
    background: rgba(0, 0, 0, 0.04);
}

.nav-link:hover svg {
    transform: scale(1.1);
}

.nav-link.active {
    color: #ffffff;
    background: linear-gradient(135deg, var(--primary) 0%, #4338ca 100%);
    box-shadow: 0 4px 15px var(--primary-glow);
}

.badge {
    margin-left: auto;
    background: rgba(255, 255, 255, 0.12);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 2px 7px;
    border-radius: 999px;
}

.sidebar-bottom {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding-top: 0.85rem;
    margin-top: auto;
    flex-shrink: 0;
    border-top: 1px solid var(--border-subtle);
    background: var(--bg-surface);
    z-index: 2;
}

.collapse-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    padding: 0.6rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.collapse-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.sidebar.collapsed .collapse-toggle-btn svg {
    transform: rotate(180deg);
}

/* Main Content Area */
.main-wrapper {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: var(--transition-smooth);
}

.sidebar.collapsed ~ .main-wrapper {
    margin-left: var(--sidebar-collapsed-width);
}

/* Topbar */
.topbar {
    height: var(--topbar-height);
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    position: sticky;
    top: 0;
    z-index: 40;
    backdrop-filter: blur(12px);
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-main);
    border: 1px solid var(--border-subtle);
    border-radius: 30px;
    padding: 0.5rem 1.1rem;
    width: 320px;
    transition: var(--transition-smooth);
}

.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.search-box svg {
    width: 17px;
    height: 17px;
    color: var(--text-muted);
}

.search-box input {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 0.9rem;
    width: 100%;
    outline: none;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 14px;
}

.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-main);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    cursor: pointer;
    position: relative;
    transition: var(--transition-smooth);
}

.icon-btn:hover {
    color: var(--text-primary);
    border-color: var(--border-focus);
    transform: translateY(-2px);
}

.notification-dot {
    position: absolute;
    top: 9px;
    right: 9px;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-left: 8px;
    border-left: 1px solid var(--border-subtle);
    cursor: pointer;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, #10b981, #06b6d4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    font-size: 0.95rem;
    box-shadow: 0 4px 10px rgba(16, 185, 129, 0.25);
}

.user-details {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Page Content */
.content-area {
    padding: 2.2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Hero Section */
.hero-banner {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.12) 0%, rgba(6, 182, 212, 0.08) 100%), var(--bg-surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2rem 2.4rem;
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--card-shadow);
    position: relative;
    overflow: hidden;
}

.hero-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    pointer-events: none;
}

.hero-text h1 {
    font-family: var(--font-heading);
    font-size: 1.85rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}

.hero-text p {
    color: var(--text-secondary);
    font-size: 0.98rem;
    max-width: 600px;
    line-height: 1.5;
}

.hero-actions {
    display: flex;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.75rem 1.3rem;
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition-smooth);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #4f46e5 100%);
    color: white;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: var(--bg-surface-elevated);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
    border-color: var(--border-focus);
    background: rgba(255, 255, 255, 0.08);
}

/* Stat Cards Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.stat-card {
    background: var(--bg-surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    box-shadow: var(--card-shadow);
    backdrop-filter: blur(8px);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-focus);
}

.stat-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stat-card-header .stat-title {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.stat-icon-wrapper {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon-wrapper.indigo {
    background: rgba(99, 102, 241, 0.15);
    color: var(--primary);
}

.stat-icon-wrapper.teal {
    background: rgba(6, 182, 212, 0.15);
    color: var(--accent);
}

.stat-icon-wrapper.emerald {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.stat-icon-wrapper.amber {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

.stat-body {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.1rem;
    font-weight: 700;
    letter-spacing: -0.03em;
}

.stat-trend {
    font-size: 0.8rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: 20px;
}

.trend-up {
    background: var(--success-bg);
    color: var(--success);
}

.trend-down {
    background: var(--danger-bg);
    color: var(--danger);
}

/* Charts Grid */
.charts-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
}

.card {
    background: var(--bg-surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    box-shadow: var(--card-shadow);
    backdrop-filter: blur(8px);
    display: flex;
    flex-direction: column;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.card-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 600;
}

.card-subtitle {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.chart-container {
    position: relative;
    height: 280px;
    width: 100%;
}

/* Dual Column Activity & Services */
.grid-two-col {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 1.5rem;
}

/* Services Table */
.services-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.services-table th {
    text-align: left;
    padding: 0.8rem 1rem;
    color: var(--text-muted);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-subtle);
}

.services-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-secondary);
}

.services-table tr:last-child td {
    border-bottom: none;
}

.services-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.service-name {
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.status-indicator.online {
    background: var(--success);
    box-shadow: 0 0 8px var(--success);
}

.status-indicator.degraded {
    background: var(--warning);
    box-shadow: 0 0 8px var(--warning);
}

.status-pill {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 20px;
    display: inline-block;
}

.status-pill.online {
    background: var(--success-bg);
    color: var(--success);
}

.status-pill.degraded {
    background: var(--warning-bg);
    color: var(--warning);
}

/* Quick Tools / Actions */
.tools-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tool-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    transition: var(--transition-smooth);
    cursor: pointer;
}

.tool-item:hover {
    border-color: var(--border-focus);
    transform: translateX(4px);
    background: rgba(99, 102, 241, 0.08);
}

.tool-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.tool-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--bg-main);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.tool-title {
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--text-primary);
}

.tool-desc {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* Footer */
.app-footer {
    padding: 1.5rem 2.2rem;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .charts-grid,
    .grid-two-col {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.mobile-open {
        transform: translateX(0);
    }

    .main-wrapper {
        margin-left: 0 !important;
    }

    .mobile-menu-btn {
        display: block;
    }

    .search-box {
        display: none;
    }

    .hero-banner {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }

    .content-area {
        padding: 1.2rem;
    }
}

/* ===================================================
   ADVANCED UTILITIES, TABS, MODALS, TERMINAL & CONTROLS
   =================================================== */

/* Filter Bar & Chips */
.filter-bar {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.chip {
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 600;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-smooth);
    user-select: none;
}

.chip:hover {
    color: var(--text-primary);
    border-color: var(--border-focus);
}

.chip.active {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    box-shadow: 0 2px 10px var(--primary-glow);
}

/* Tabbed Navigation */
.tabs-header {
    display: flex;
    gap: 8px;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 1.8rem;
    overflow-x: auto;
}

.tab-btn {
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    padding: 0.85rem 1.4rem;
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.25s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(3, 7, 18, 0.75);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--border-subtle);
    width: 90%;
    max-width: 620px;
    max-height: 85vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    transform: scale(0.95);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-header {
    padding: 1.4rem 1.8rem;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
}

.modal-close-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.4rem;
    cursor: pointer;
    line-height: 1;
    padding: 4px;
    transition: color 0.2s;
}

.modal-close-btn:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 1.8rem;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.modal-footer {
    padding: 1.2rem 1.8rem;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    background: rgba(0, 0, 0, 0.1);
}

/* Forms & Inputs */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    justify-content: space-between;
}

.form-helper {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    background: var(--bg-main);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    padding: 0.7rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    font-family: var(--font-body);
    outline: none;
    transition: var(--transition-smooth);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-input:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Toggle Switches */
.toggle-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.2rem;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    transition: var(--transition-smooth);
}

.toggle-item:hover {
    border-color: var(--border-focus);
}

.toggle-item-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.toggle-title {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-primary);
}

.toggle-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.switch {
    position: relative;
    display: inline-block;
    width: 46px;
    height: 24px;
    flex-shrink: 0;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-main);
    border: 1px solid var(--border-subtle);
    transition: .3s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: #9ca3af;
    transition: .3s;
    border-radius: 50%;
}

input:checked + .slider {
    background: linear-gradient(135deg, var(--primary) 0%, #4f46e5 100%);
    border-color: var(--primary);
}

input:checked + .slider:before {
    transform: translateX(22px);
    background-color: #ffffff;
}

/* Terminal & Log Viewer */
.terminal-window {
    background: #090d16;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    overflow: hidden;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
    display: flex;
    flex-direction: column;
}

.terminal-header {
    background: #0f172a;
    padding: 10px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-subtle);
}

.terminal-dots {
    display: flex;
    gap: 6px;
}

.terminal-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.terminal-dot.red { background: #ef4444; }
.terminal-dot.yellow { background: #f59e0b; }
.terminal-dot.green { background: #10b981; }

.terminal-title {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.terminal-actions {
    display: flex;
    gap: 8px;
}

.terminal-btn {
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.72rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.terminal-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.terminal-body {
    padding: 1rem 1.2rem;
    max-height: 380px;
    overflow-y: auto;
    font-size: 0.82rem;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    gap: 4px;
    color: #cbd5e1;
}

.log-entry {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.log-time {
    color: #64748b;
    flex-shrink: 0;
    font-size: 0.75rem;
}

.log-badge {
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 0.68rem;
    font-weight: 700;
    flex-shrink: 0;
}

.log-badge.info { background: rgba(6, 182, 212, 0.15); color: #06b6d4; }
.log-badge.warn { background: rgba(245, 158, 11, 0.15); color: #f59e0b; }
.log-badge.error { background: rgba(239, 68, 68, 0.15); color: #ef4444; }
.log-badge.metric { background: rgba(99, 102, 241, 0.15); color: #818cf8; }

.log-msg {
    word-break: break-all;
}

/* Diagnostics Step Cards & Progress */
.progress-bar-wrapper {
    width: 100%;
    height: 8px;
    background: var(--bg-surface-elevated);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
    width: 0%;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.diag-step-card {
    background: var(--bg-surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 1.1rem 1.4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--transition-smooth);
}

.diag-step-card:hover {
    border-color: var(--border-focus);
}

.diag-step-info {
    display: flex;
    align-items: center;
    gap: 14px;
}

.diag-step-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--bg-main);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.diag-step-icon.passed { color: var(--success); background: var(--success-bg); }
.diag-step-icon.failed { color: var(--danger); background: var(--danger-bg); }
.diag-step-icon.running { color: var(--accent); animation: spin 1s linear infinite; }

@keyframes spin {
    100% { transform: rotate(360deg); }
}

/* Security Posture Gauge */
.security-gauge-card {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 1.8rem;
}

.gauge-circle {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    background: radial-gradient(closest-side, var(--bg-surface-card) 78%, transparent 80% 100%),
                conic-gradient(var(--success) 96%, rgba(255, 255, 255, 0.08) 0);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
}

.gauge-score {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    line-height: 1;
    color: #ffffff;
}

.gauge-sub {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--success);
    letter-spacing: 0.05em;
}

/* Notification Toast */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--primary-glow);
    padding: 14px 20px;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 12px;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast-icon {
    color: var(--success);
    flex-shrink: 0;
}

/* Service Card Fleet Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.service-card {
    background: var(--bg-surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1.4rem;
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: var(--transition-smooth);
}

.service-card:hover {
    border-color: var(--border-focus);
    transform: translateY(-3px);
}

.service-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.service-meta-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.metric-meter {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.meter-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--text-secondary);
}

.meter-bar {
    height: 6px;
    background: var(--bg-surface-elevated);
    border-radius: 4px;
    overflow: hidden;
}

.meter-fill {
    height: 100%;
    border-radius: 4px;
}

.meter-fill.emerald { background: var(--success); }
.meter-fill.indigo { background: var(--primary); }
.meter-fill.amber { background: var(--warning); }

/* ===================================================
   LINK CHECKER & SITE CRAWLER EXTENSIONS (NEXUSOPS THEME)
   =================================================== */

.radio-group, .checkbox-group {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 0.4rem;
}

.radio-item, .checkbox-item {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    cursor: pointer;
    font-size: 0.88rem;
    color: var(--text-primary);
    font-weight: 500;
}

.radio-item input, .checkbox-item input {
    accent-color: var(--primary);
    width: 17px;
    height: 17px;
    cursor: pointer;
}

/* Link Checker Progress Box */
.progress-card {
    display: none;
    background: var(--bg-surface-card);
    border: 1px solid var(--border-focus);
    border-radius: var(--radius-md);
    padding: 1.6rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.15), var(--card-shadow);
    animation: pulseBorder 2.5s infinite ease-in-out;
}

@keyframes pulseBorder {
    0%, 100% { border-color: rgba(99, 102, 241, 0.4); box-shadow: 0 4px 15px rgba(99, 102, 241, 0.1); }
    50% { border-color: var(--accent); box-shadow: 0 4px 25px rgba(6, 182, 212, 0.25); }
}

.progress-header {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    margin-bottom: 1rem;
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    flex-shrink: 0;
}

[data-theme="light"] .spinner {
    border-color: rgba(0, 0, 0, 0.1);
    border-top-color: var(--primary);
}

.progress-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.progress-counter {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 1.2rem;
    margin-top: 0.3rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.progress-counter strong {
    color: var(--accent);
    font-family: 'SFMono-Regular', Consolas, monospace;
}

.active-url-box {
    background: var(--bg-main);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    font-family: 'SFMono-Regular', Consolas, monospace;
    font-size: 0.84rem;
    color: var(--accent);
    word-break: break-all;
    margin: 1rem 0 0.75rem;
    min-height: 44px;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.active-url-box::before {
    content: '▶';
    color: var(--primary);
    font-size: 0.75rem;
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.indeterminate-bar {
    width: 100%;
    height: 6px;
    background: var(--bg-surface-elevated);
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}

.indeterminate-bar-inner {
    width: 40%;
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    position: absolute;
    border-radius: 3px;
    animation: indeterminate 1.6s infinite cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes indeterminate {
    0% { left: -40%; }
    100% { left: 100%; }
}

.btn.is-busy {
    pointer-events: none;
    opacity: 0.85;
    background: #475569;
    border-color: #475569;
}

.btn-spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-right: 8px;
    vertical-align: middle;
}

/* Search Matches */
.search-match-card {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    border-left: 4px solid var(--accent);
    border-radius: var(--radius-sm);
    padding: 1rem 1.25rem;
    margin-bottom: 0.85rem;
}

.search-match-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.search-match-title {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.search-snippets-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    margin-top: 0.5rem;
}

.search-snippet-item {
    background: var(--bg-main);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    padding: 0.55rem 0.85rem;
    font-size: 0.84rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.search-highlight {
    background-color: rgba(245, 158, 11, 0.25);
    color: #f59e0b;
    font-weight: 700;
    padding: 0.1rem 0.3rem;
    border-radius: 3px;
    border: 1px solid rgba(245, 158, 11, 0.4);
}

/* Links & Anchors */
.url-mono {
    font-family: 'SFMono-Regular', Consolas, monospace;
    font-size: 0.83rem;
    word-break: break-all;
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
}

.url-mono:hover {
    text-decoration: underline;
    color: var(--primary);
}

.source-text {
    font-size: 0.8rem;
    color: var(--text-muted);
    word-break: break-all;
    text-decoration: none;
}

.source-text:hover {
    color: var(--accent);
    text-decoration: underline;
}

.source-list {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.source-list-item {
    display: flex;
    align-items: flex-start;
    gap: 0.4rem;
    font-size: 0.8rem;
    line-height: 1.35;
}

.source-bullet {
    color: var(--accent);
    font-size: 0.75rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.source-badge-count {
    display: inline-block;
    background: var(--bg-surface-elevated);
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: 9999px;
    padding: 0.05rem 0.45rem;
    margin-bottom: 0.35rem;
}

.anchor-tag-badge {
    display: inline-block;
    background: rgba(99, 102, 241, 0.12);
    color: #818cf8;
    border: 1px solid rgba(99, 102, 241, 0.25);
    border-radius: 4px;
    padding: 0.1rem 0.45rem;
    font-size: 0.75rem;
    margin: 0.15rem 0.25rem 0.15rem 0;
    word-break: break-word;
}

.empty-message {
    text-align: center;
    padding: 2.5rem 1.5rem;
    color: var(--success);
    font-size: 1.05rem;
    font-weight: 600;
    background: var(--success-bg);
    border: 1px solid rgba(16, 185, 129, 0.25);
    border-radius: var(--radius-sm);
    margin-top: 1rem;
}

.crawled-list {
    margin-top: 0.75rem;
    padding-left: 0;
    list-style: none;
    font-size: 0.84rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.crawled-list li {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 0.65rem 0.95rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    transition: var(--transition-smooth);
}

.crawled-list li:hover {
    border-color: var(--border-focus);
}

.crawled-item-header {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.crawled-item-found-on {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.35rem;
    margin-top: 0.1rem;
}

.crawled-item-found-on strong {
    color: var(--text-secondary);
}

.crawled-item-found-on a {
    color: var(--text-muted);
    text-decoration: none;
    word-break: break-all;
}

.crawled-item-found-on a:hover {
    color: var(--accent);
    text-decoration: underline;
}

/* Slide-out Drawer for Recycle Bin / Saved Profiles */
.drawer-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(3, 7, 18, 0.7);
    backdrop-filter: blur(6px);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.drawer-backdrop.open {
    opacity: 1;
    visibility: visible;
}

.drawer-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 520px;
    height: 100vh;
    background: var(--bg-surface);
    border-left: 1px solid var(--border-subtle);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.5);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.drawer-backdrop.open .drawer-panel {
    transform: translateX(0);
}

.drawer-header {
    padding: 1.25rem 1.6rem;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-surface-elevated);
}

.drawer-body {
    padding: 1.4rem;
    overflow-y: auto;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.close-modal {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    padding: 0.25rem;
}

.close-modal:hover {
    color: var(--text-primary);
}

.bin-card {
    background: var(--bg-surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 1rem 1.15rem;
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transition: var(--transition-smooth);
}

.bin-card:hover {
    border-color: var(--border-focus);
}

.bin-card-title {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 0.92rem;
    word-break: break-all;
}

.bin-card-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.bin-card-pill {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.72rem;
    color: var(--text-secondary);
}

.bin-card-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.35rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border-subtle);
}

.btn-xs {
    padding: 0.3rem 0.65rem;
    font-size: 0.76rem;
    border-radius: 4px;
    font-family: inherit;
    cursor: pointer;
    font-weight: 600;
    border: 1px solid transparent;
    transition: var(--transition-smooth);
}

.btn-restore {
    background: rgba(99, 102, 241, 0.15);
    color: var(--primary);
    border-color: rgba(99, 102, 241, 0.3);
}

.btn-restore:hover {
    background: var(--primary);
    color: white;
}

.btn-remove-item {
    background: var(--danger-bg);
    color: var(--danger);
    border-color: rgba(239, 68, 68, 0.3);
}

.btn-remove-item:hover {
    background: var(--danger);
    color: white;
}

/* ===================================================
   Crawler Specific Text Color Overrides (#f9fafb -> #9ca3af)
   Applies to Crawler Form Card, Live Progress Card, and Live Results Container
   =================================================== */
#crawlerFormCard,
#progressCard,
#liveResultsContainer,
#staticResultsCard {
    --text-primary: #9ca3af;
    color: #9ca3af;
}

#crawlerFormCard .card-title,
#crawlerFormCard .form-label,
#crawlerFormCard .form-input,
#crawlerFormCard .radio-item,
#crawlerFormCard .checkbox-item,
#crawlerFormCard code,
#progressCard .progress-title,
#liveResultsContainer .card-title,
#liveResultsContainer h2,
#liveResultsContainer h3,
#liveResultsContainer .stat-card .stat-number:not([style*="color"]),
#liveResultsContainer .search-match-title,
#liveResultsContainer .crawled-item-found-on strong,
#liveResultsContainer .badge,
#staticResultsCard .card-title,
#staticResultsCard h2,
#staticResultsCard h3,
#staticResultsCard .stat-card .stat-number:not([style*="color"]),
#staticResultsCard .search-match-title {
    color: #9ca3af !important;
}




/* ===================================================
   Dashboard Tool Directory & Operations Hub Styles
   =================================================== */

.tool-directory-section {
    margin-top: 1.75rem;
}

.directory-header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.directory-title-group h2 {
    font-family: var(--font-heading);
    font-size: 1.45rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.directory-title-group p {
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.tool-filter-bar {
    display: flex;
    flex-direction: column;
    gap: 1.15rem;
    margin-bottom: 1.75rem;
    background: var(--bg-surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.35rem;
    box-shadow: var(--card-shadow);
}

.tool-search-row {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.tool-search-wrapper {
    position: relative;
    flex-grow: 1;
}

.tool-search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
    display: flex;
    align-items: center;
}

.tool-search-input {
    width: 100%;
    padding: 0.82rem 3rem 0.82rem 2.75rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.tool-search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.tool-search-clear {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.15rem;
    padding: 4px;
    display: none;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

.tool-search-clear:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.1);
}

.filter-pills-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tool-category-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.category-filter-btn {
    background: var(--bg-surface);
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
    padding: 0.45rem 0.9rem;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.category-filter-btn:hover {
    color: var(--text-primary);
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.08);
}

.category-filter-btn.active {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    box-shadow: 0 2px 8px var(--primary-glow);
}

.category-filter-btn .cat-count {
    background: rgba(255, 255, 255, 0.15);
    padding: 1px 7px;
    border-radius: 999px;
    font-size: 0.72rem;
}

.category-filter-btn.active .cat-count {
    background: rgba(255, 255, 255, 0.28);
    color: #ffffff;
}

.tools-count-indicator {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Tool Cards Grid */
.tool-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 1.35rem;
}

@media (max-width: 640px) {
    .tool-cards-grid {
        grid-template-columns: 1fr;
    }
}

.tool-card-item {
    background: var(--bg-surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1.4rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: var(--card-shadow);
    transition: var(--transition-smooth);
    position: relative;
    text-decoration: none;
    color: inherit;
    overflow: hidden;
}

.tool-card-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: transparent;
    transition: var(--transition-smooth);
}

.tool-card-item:hover {
    transform: translateY(-4px);
    border-color: rgba(99, 102, 241, 0.35);
    box-shadow: 0 16px 32px -8px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--primary-glow);
}

.tool-card-item:hover::before {
    background: var(--card-accent-color, var(--primary));
}

.tool-card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 1.15rem;
}

.tool-icon-badge {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-accent-bg, rgba(99, 102, 241, 0.12));
    color: var(--card-accent-color, var(--primary));
    flex-shrink: 0;
    transition: var(--transition-smooth);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.tool-card-item:hover .tool-icon-badge {
    transform: scale(1.08);
}

.tool-meta-badges {
    display: flex;
    align-items: center;
    gap: 7px;
}

.tool-category-chip {
    font-size: 0.69rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

[data-theme="light"] .tool-category-chip {
    background: rgba(0, 0, 0, 0.04);
}

.tool-status-dot {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--success);
    background: var(--success-bg);
    padding: 2px 8px;
    border-radius: 999px;
}

.tool-status-dot::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 6px var(--success);
}

.tool-card-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.tool-card-title {
    font-family: var(--font-heading);
    font-size: 1.18rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.45rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.tool-card-desc {
    font-size: 0.865rem;
    color: var(--text-secondary);
    line-height: 1.55;
    margin-bottom: 1.1rem;
    flex-grow: 1;
}

.tool-features-row {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-bottom: 1.25rem;
}

.tool-feature-tag {
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-muted);
    border: 1px solid rgba(255, 255, 255, 0.06);
    white-space: nowrap;
    transition: var(--transition-smooth);
}

.tool-card-item:hover .tool-feature-tag {
    color: var(--text-secondary);
    border-color: rgba(255, 255, 255, 0.12);
}

[data-theme="light"] .tool-feature-tag {
    background: rgba(0, 0, 0, 0.03);
    border-color: rgba(0, 0, 0, 0.08);
}

.tool-card-action {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 0.95rem;
    border-top: 1px solid var(--border-subtle);
    font-size: 0.86rem;
    font-weight: 600;
    color: var(--card-accent-color, var(--primary));
    transition: var(--transition-smooth);
}

.tool-card-action span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.tool-card-action svg {
    transition: transform 0.25s ease;
}

.tool-card-item:hover .tool-card-action svg {
    transform: translateX(4px);
}

.no-tools-placeholder {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3.5rem 1.5rem;
    background: var(--bg-surface-card);
    border: 1px dashed var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
}

.no-tools-placeholder svg {
    margin-bottom: 1rem;
    color: var(--text-muted);
}

/* Collapsible Category Groups & Scrollbar */
.sidebar-nav::-webkit-scrollbar {
    width: 4px;
}
.sidebar-nav::-webkit-scrollbar-track {
    background: transparent;
}
.sidebar-nav::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}
.sidebar-nav::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.25);
}

.nav-category-group {
    display: flex;
    flex-direction: column;
    margin-top: 0.35rem;
}

.nav-category-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    background: transparent;
    border: none;
    padding: 0.75rem 0.6rem 0.35rem;
    cursor: pointer;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-radius: var(--radius-sm);
    transition: var(--transition-smooth);
    user-select: none;
}

.nav-category-toggle:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

[data-theme="light"] .nav-category-toggle:hover {
    background: rgba(0, 0, 0, 0.04);
}

.category-name-wrap {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.nav-category-count {
    background: rgba(255, 255, 255, 0.08);
    font-size: 0.65rem;
    padding: 1px 6px;
    border-radius: 999px;
    color: var(--text-secondary);
    font-weight: 600;
}

[data-theme="light"] .nav-category-count {
    background: rgba(0, 0, 0, 0.07);
}

.nav-category-chevron {
    color: var(--text-muted);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}

.nav-category-group.collapsed .nav-category-chevron {
    transform: rotate(-90deg);
}

.nav-category-items {
    display: flex;
    flex-direction: column;
    gap: 4px;
    transition: var(--transition-smooth);
}

.nav-category-group.collapsed .nav-category-items {
    display: none;
}

/* Collapsed icon mode adjustments */
.sidebar.collapsed .nav-category-toggle {
    justify-content: center;
    padding: 0.8rem 0 0.3rem;
}

.sidebar.collapsed .category-name-wrap,
.sidebar.collapsed .nav-category-chevron {
    display: none;
}

.sidebar.collapsed .nav-category-toggle::after {
    content: '';
    width: 20px;
    height: 1px;
    background: var(--border-subtle);
}

.sidebar.collapsed .nav-category-group.collapsed .nav-category-items {
    display: flex;
}

.nav-link-external-icon {
    margin-left: auto;
    opacity: 0.45;
    flex-shrink: 0;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.nav-link:hover .nav-link-external-icon {
    opacity: 0.9;
    transform: translate(1px, -1px);
}

.sidebar.collapsed .nav-link-external-icon {
    display: none;
}