/**
 * Dravincon Cybersecurity Toolbox - Website Theme v4.0
 */

:root {
    /* Mapped from main website styles.css */
    --dash-bg: #eef2f7; /* Slightly darker to make cards pop */
    --card-bg: #ffffff;
    --sidebar-bg: #f8fafc; /* Keep sidebar light but distinct */
    --border-color: #d1d9e6; /* Refined border */
    --text-primary: #0f172a; /* --text-dark */
    --text-secondary: #334155; /* --text-mid */
    --text-muted: #64748b; /* --text-light */
    --accent: #3b82f6; /* --primary-light */
    --accent-glow: rgba(59, 130, 246, 0.2);
    --blue-accent: #1d4ed8; /* --primary */
    --primary-dark: #1e40af;

    /* Status & Output colors */
    --green-accent: #10b981;
    --yellow-accent: #f59e0b;
    --red-accent: #ef4444;
    --output-accent: #00d4ff; /* Keep bright accent for dark output box */

    --font-body: 'Inter', sans-serif;
    --font-heading: 'Poppins', sans-serif;
    --font-mono: 'Fira Code', 'Consolas', 'Courier New', monospace;
    --radius: 12px;
    --sidebar-width: 240px; /* Compressed from 260px */
    --sidebar-width-collapsed: 72px; /* Compressed from 80px */
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --dash-bg: #0b1120; /* Deep background */
    --card-bg: #1e293b;
    --sidebar-bg: #0f172a; /* Slightly lighter sidebar in dark mode */
    --border-color: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #60a5fa;
    --accent-glow: rgba(96, 165, 250, 0.15);
    --blue-accent: #3b82f6;
    --primary-dark: #2563eb;
}


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

body {
    background-color: var(--dash-bg);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.6;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { background: none; border: none; cursor: pointer; font-family: inherit; }
input { font-family: inherit; }

.skip-link {
    position: absolute; top: -100px; left: 16px; z-index: 9999;
    background: var(--blue-accent); color: #fff; padding: 8px 16px;
    border-radius: 0 0 8px 8px; font-weight: 600;
    transition: top 0.3s;
}
.skip-link:focus { top: 0; }

/* --- Main Layout --- */
.dashboard-container {
    display: flex;
    min-height: 100vh;
}

.dashboard-main {
    flex-grow: 1;
    min-width: 0;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 1;
}

#main-content {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    width: 100%;
    min-height: 100vh;
    position: relative;
}

/* --- Sidebar --- */
.dashboard-sidebar {
    position: sticky;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    box-shadow: 4px 0 24px rgba(0,0,0,0.02); /* Added subtle depth */
    display: flex;
    flex-direction: column;
    transition: width var(--transition);
    overflow-x: hidden;
    z-index: 2000;
    flex-shrink: 0;
}
.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}
.sidebar-logo img {
    width: 100px;
    height: auto;
}
.sidebar-nav {
    flex-grow: 1;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.nav-title {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 16px 12px 8px;
    white-space: nowrap;
}
.nav-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px;
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
    white-space: nowrap;
}
.nav-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    stroke-width: 2;
    fill: none;
    stroke: currentColor;
}
.nav-item:hover {
    background-color: #eef2ff; /* --blue-50 */
    color: var(--blue-accent);
}
.nav-item.active {
    background: var(--blue-accent);
    color: #fff;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}
.bookmark-count {
    margin-left: auto;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--border-color);
    color: var(--text-secondary);
    border-radius: 50px;
    padding: 2px 8px;
    min-width: 24px;
    text-align: center;
}
.nav-item.active .bookmark-count {
    background: rgba(255,255,255,0.2);
    color: #fff;
}
.sidebar-footer {
    padding: 8px 16px;
    border-top: 1px solid var(--border-color);
}
#sidebar-toggle-btn {
    width: 100%;
    color: var(--text-secondary);
}
#sidebar-toggle-btn svg {
    transition: transform var(--transition);
}

/* Collapsed Sidebar State */
.dashboard-container.collapsed .dashboard-sidebar {
    position: sticky;
    top: 0;
    width: var(--sidebar-width-collapsed);
    height: 100vh;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: width var(--transition);
    overflow-x: hidden;
    z-index: 2000; /* Consistency with expanded state */
    flex-shrink: 0;
}

.dashboard-container.collapsed .nav-item span,
.dashboard-container.collapsed .nav-title,
.dashboard-container.collapsed #sidebar-toggle-btn span {
    display: none;
}
.dashboard-container.collapsed #sidebar-toggle-btn svg {
    transform: rotate(180deg);
}
.dashboard-container.collapsed .sidebar-logo {
    display: flex;
    justify-content: center;
}
.dashboard-container.collapsed .sidebar-logo img {
    width: 40px;
}

/* --- Dashboard Header --- */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px; /* Reduced from 32px */
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.9); /* More solid to distinguish space */
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1500;
}
.header-left { display: flex; align-items: center; gap: 16px; }
.header-left h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
    letter-spacing: -0.02em;
}
#mobile-menu-btn {
    display: none;
    color: var(--text-secondary);
}
#mobile-menu-btn svg { width: 24px; height: 24px; }

.header-right { display: flex; align-items: center; gap: 16px; }
.search-wrapper { position: relative; }
#tool-search {
    background-color: var(--dash-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px 40px;
    color: var(--text-primary);
    font-size: 0.9rem;
    width: 250px;
    transition: all 0.2s ease;
}
#tool-search:focus {
    border-color: var(--blue-accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
    outline: none;
    width: 300px;
    background: var(--card-bg);
}
.search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    width: 18px;
    height: 18px;
    pointer-events: none;
}
#clear-search-btn {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    width: 18px;
    height: 18px;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
    transition: color 0.2s ease;
}
#clear-search-btn:hover {
    color: var(--text-primary);
}
.btn-export {
    background: var(--sidebar-bg);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
}
.btn-export:hover {
    background: #eef2ff;
    color: var(--text-primary);
}


/* --- Tool Groups --- */
.tool-groups {
    padding: 16px 24px 24px; /* Tightened top padding */
}
.tool-group {
    margin-bottom: 24px; /* Reduced from 40px */
}
.tool-group h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}
.toolbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); /* allows better space filling */
    gap: 20px; /* Slightly tighter gap */
    align-items: start;
}

/* --- Tool Card --- */
.tool-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    flex-direction: column;
    transition: all 0.2s ease;
}
.tool-card:hover {
    border-color: var(--accent);
}
.tool-card.hidden-card {
    display: none !important;
}
.no-results {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    background: var(--card-bg);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius);
    text-align: center;
}
.no-results svg {
    color: var(--text-muted);
    margin-bottom: 16px;
    filter: drop-shadow(0 0 8px var(--accent-glow));
}
.no-results p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin: 0;
}
.card-header { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 12px; }
.card-icon { color: var(--blue-accent); }
.card-icon svg { width: 20px; height: 20px; }
.card-title-wrap { flex-grow: 1; }
.tool-card h3 { margin: 0; font-size: 1.1rem; font-weight: 600; }
.card-category {
    font-size: 0.65rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 4px;
}
.card-category.api { background: rgba(245, 158, 11, 0.1); color: var(--yellow-accent); }
.card-category.core { background: rgba(59, 130, 246, 0.1); color: var(--blue-accent); }
.card-category.local { background: rgba(16, 185, 129, 0.1); color: var(--green-accent); }

.tool-card p { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.5; margin: 0 0 16px 0; }

.header-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}

.info-wrapper {
    position: relative;
    display: inline-block;
}

.info-btn {
    background: rgba(59, 130, 246, 0.08); 
    border: 1px solid rgba(59, 130, 246, 0.15); 
    color: var(--blue-accent); 
    cursor: pointer;
    padding: 6px; 
    border-radius: 8px; 
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.info-btn:hover { 
    background: var(--blue-accent); 
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}

.info-tooltip {
    position: absolute;
    bottom: calc(100% + 15px);
    right: -10px;
    width: 260px;
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(12px) saturate(160%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 16px;
    border-radius: 16px;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px) scale(0.95);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    z-index: 100;
    pointer-events: none;
}

/* Tooltip arrow */
.info-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    right: 17px;
    border: 6px solid transparent;
    border-top-color: var(--border-color);
}

.info-tooltip p {
    margin: 0;
    color: rgba(255, 255, 255, 0.8) !important;
}

.info-tooltip h4 {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin: 0 0 10px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.info-example {
    margin-top: 14px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    font-size: 0.8rem;
}

.info-example span {
    color: var(--accent);
    font-weight: 700;
    margin-right: 8px;
    text-transform: uppercase;
    font-size: 0.7rem;
}

.info-example code {
    background: rgba(255, 255, 255, 0.1);
    padding: 3px 8px;
    border-radius: 6px;
    font-family: var(--font-mono);
    color: #fff;
    font-size: 0.75rem;
}

/* Desktop Hover */
@media (min-width: 769px) {
    .info-wrapper:hover .info-tooltip {
        opacity: 1;
        visibility: visible;
        transform: translateY(0) scale(1);
    }
}

/* Mobile/Active Toggle */
.info-tooltip.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.bookmark-btn {
    background: none; border: none; color: var(--text-muted); cursor: pointer;
    padding: 4px; border-radius: 6px; transition: all 0.2s ease;
}
.bookmark-btn svg { width: 18px; height: 18px; fill: none; stroke: currentColor; }
.bookmark-btn:hover { color: var(--accent); background: var(--border-color); }
.bookmark-btn.bookmarked { color: var(--accent); }
.bookmark-btn.bookmarked svg { fill: var(--accent); }

/* --- Inputs & Buttons --- */
.input-group.floating { position: relative; margin-bottom: 16px; margin-top: auto; }
.input-group.floating input, .input-group.floating textarea {
    width: 100%;
    background: var(--dash-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: all 0.2s ease;
}
.input-group.floating label {
    position: absolute;
    top: 13px;
    left: 12px;
    color: var(--text-secondary);
    pointer-events: none;
    transition: all 0.2s ease;
    background-color: var(--dash-bg); /* Must match input background */
    padding: 0 4px;
}
.input-group.floating input:focus, .input-group.floating textarea:focus {
    outline: none;
    border-color: var(--blue-accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
    background: var(--card-bg);
}
.input-group.floating input:not(:placeholder-shown) + label,
.input-group.floating input:focus + label,
.input-group.floating textarea:not(:placeholder-shown) + label,
.input-group.floating textarea:focus + label {
    top: -8px;
    font-size: 0.75rem;
    color: var(--blue-accent);
    background-color: var(--card-bg); /* Must match card background on focus */
}
.tool-card textarea { resize: vertical; min-height: 80px; }

.tool-btn {
    width: 100%;
    background: var(--blue-accent);
    border: none;
    border-radius: 8px;
    padding: 10px;
    color: #fff;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
.tool-btn:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4); }
.tool-btn:disabled { background: var(--text-muted); cursor: not-allowed; transform: none; box-shadow: none; }
.tool-input-group.buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.tool-btn .spinner {
    display: none;
    width: 18px; height: 18px;
    border: 2px solid rgba(255,255,255,0.5);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
.tool-btn.loading > span { opacity: 0; }
.tool-btn.loading .spinner { display: block; position: absolute; }
@keyframes spin { to { transform: rotate(360deg); } }

/* --- Output --- */
.tool-output {
    margin-top: 20px;
    background: var(--text-primary); /* Dark background for code */
    border: 1px solid var(--text-secondary);
    border-radius: 8px;
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: #e5e7eb; /* Light text */
    white-space: pre-wrap;
    word-break: break-all;
    min-height: 50px;
    max-height: 250px;
    overflow-y: auto;
    position: relative;
    transition: all 0.2s ease;
}
.tool-output:empty { display: none; }
.tool-output:not(:empty) { display: block; }

.output-actions {
    display: none;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 12px;
}
.tool-card.has-output .output-actions {
    display: flex;
}
.output-actions button {
    background: var(--border-color);
    color: var(--text-secondary);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    transition: all 0.2s ease;
}
.output-actions button:hover { background: var(--text-muted); color: var(--card-bg); }

/* Result Formatting */
.result-line { display: block; margin-bottom: 5px; }
.tool-output .result-key { color: var(--output-accent); font-weight: 600; }
.tool-output .result-value { color: #e5e7eb; }
.result-value.good { color: var(--green-accent); }
.result-value.warn { color: var(--yellow-accent); }
.result-value.bad { color: var(--red-accent); }
.result-error { color: var(--red-accent); font-weight: 600; }
.tool-output .result-header {
    color: #fff; /* White text on dark output bg */
    font-weight: bold;
    margin-top: 12px;
    margin-bottom: 6px;
    display: block;
    border-bottom: 1px dashed var(--text-muted);
    padding-bottom: 5px;
}
.tool-output .result-header:first-child { margin-top: 0; }

.tool-output pre {
    background-color: #000;
    color: #e5e7eb;
    padding: 10px;
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    white-space: pre-wrap;
    word-break: break-all;
    margin: 5px 0;
}

/* Search Highlighting */
mark {
    background-color: var(--yellow-accent);
    color: var(--text-primary);
    padding: 1px 3px;
    border-radius: 4px;
}

/* --- Toast Notifications --- */
#toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.toast {
    padding: 12px 20px;
    border-radius: 8px;
    color: #fff;
    font-weight: 500;
    font-size: 0.9rem;
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
    animation: slideIn 0.3s ease, fadeOut 0.3s ease 2.7s forwards;
    background: var(--text-primary);
    border-left: 4px solid var(--accent);
}
.toast.success { border-left-color: var(--green-accent); }
.toast.error { border-left-color: var(--red-accent); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes fadeOut { from { opacity: 1; } to { opacity: 0; } }

/* --- Responsive --- */
@media (max-width: 1024px) {
    .dashboard-sidebar {
        position: fixed;
        transform: translateX(-100%);
        z-index: 3000;
    }
    .dashboard-sidebar.open {
        transform: translateX(0);
    }
}
@media (max-width: 768px) {
    /* Hide alerts and sidebars by default */
    .top-news-ticker,
    .reopen-ticker-btn,
    .dashboard-sidebar,
    .toolbox-faq-section { 
        display: none !important; 
    }

    .dashboard-main, 
    #main-content {
        margin-left: 0 !important;
        padding: 12px !important;
    }

    /* KPI Grid 2x2 */
    .summary-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
        padding: 12px;
        margin-bottom: 24px;
    }
    
    .summary-card {
        padding: 12px;
    }

    /* Scrollable Category Tabs */
    .toolbox-controls-bar {
        padding: 12px;
        margin-top: 12px;
    }

    .category-tabs {
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;
        gap: 8px;
        padding: 4px 0 12px 0;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none; /* Hide scrollbar for cleaner look */
    }
    .category-tabs::-webkit-scrollbar {
        display: none;
    }
    
    .tab-btn {
        white-space: nowrap;
        flex-shrink: 0;
        padding: 8px 16px;
    }

    /* Full-width Tool Grid and Cards */
    .toolbox-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 0;
    }
    
    .tool-card {
        padding: 16px;
        border-radius: 12px;
    }
    
    /* Responsive inputs and buttons */
    .tool-card input,
    .tool-card select,
    .tool-card textarea,
    .tool-card .tool-btn,
    .tool-card button:not(.bookmark-btn) {
        width: 100% !important;
        box-sizing: border-box;
    }
}

/* -- FAQ SECTION -- */
.toolbox-faq-section { margin-top: 40px; padding-top: 40px; border-top: 1px solid var(--border); }
.faq-header { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; margin-bottom: 24px; gap: 16px; }
.faq-controls { display: flex; gap: 12px; flex: 1; justify-content: flex-end; }
#faq-search { max-width: 300px; }
#faq-category { max-width: 200px; }
.faq-accordion-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; }
.faq-question { padding: 16px 20px; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; background: var(--bg-white); transition: background var(--transition); user-select: none; }
.faq-question:hover { background: var(--bg-light); }
.faq-icon { font-size: 1.2rem; transition: transform 0.3s ease; }
.faq-item.expanded .faq-icon { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; opacity: 0; transition: max-height 0.3s ease, opacity 0.3s ease, padding 0.3s; padding: 0 20px; background: #fff; color: var(--text-mid); }
.faq-item.expanded .faq-answer { max-height: 500px; opacity: 1; padding: 16px 20px 20px; }
.faq-sentinel { clear: both; }

.theme-toggle-btn { background: none; border: none; color: var(--text-secondary); cursor: pointer; padding: 8px; border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: background 0.2s; margin-right: 12px; }
.theme-toggle-btn:hover { background: var(--border-color); color: var(--accent); }

/* Controls Bar & Tabs */
.toolbox-controls-bar { 
    padding: 10px 32px; 
    display: flex; 
    flex-wrap: wrap; 
    justify-content: space-between; 
    align-items: center; 
    gap: 16px; 
    margin-top: 8px; /* Reduced from 32px */
    margin-bottom: 12px; /* Reduced buffer */
}

/* Tool Grid Section Headers */
.tools-section-header {
    grid-column: 1 / -1;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 8px; /* Reduced from 32px */
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
}

.tools-section-header::before {
    content: '';
    width: 4px;
    height: 1.2em;
    background: var(--blue-accent);
    border-radius: 2px;
}

/* Category Color Coding */
.tool-card.threat-intel { border-top: 4px solid #FF6B6B; }
.tool-card.network { border-top: 4px solid #4ECDC4; }
.tool-card.web { border-top: 4px solid #FFD93D; }
.tool-card.utils { border-top: 4px solid #95E1D3; }

/* Dark mode overrides for better visibility */
[data-theme="dark"] .tool-card.web { border-top-color: #f1c40f; }
[data-theme="dark"] .tools-section-header { border-bottom-color: #334155; }

.category-tabs { display: flex; gap: 8px; flex-wrap: wrap; }
.tab-btn { background: var(--card-bg); border: 1px solid var(--border-color); color: var(--text-secondary); padding: 8px 16px; border-radius: 50px; font-size: 0.9rem; font-weight: 500; cursor: pointer; transition: all 0.2s ease; }
.tab-btn:hover { background: var(--dash-bg); color: var(--text-primary); }
.tab-btn.active { background: var(--blue-accent); color: #fff; border-color: var(--blue-accent); }
.sort-dropdown select { background: var(--card-bg); border: 1px solid var(--border-color); color: var(--text-primary); padding: 8px 16px; border-radius: 8px; font-family: inherit; font-size: 0.9rem; outline: none; }
.sort-dropdown select:focus { border-color: var(--accent); }