/* ===================================
   Cybersecurity Tools - Main Styles
   Dark Matrix-Inspired Theme
   =================================== */

:root {
    /* Primary Colors - Neon Cyber Theme */
    --primary-bg: #0a0e27;
    --secondary-bg: #111827;
    --card-bg: rgba(17, 24, 39, 0.7);
    --neon-green: #00ff41;
    --neon-cyan: #00d9ff;
    --neon-purple: #b24bf3;
    --neon-pink: #ff006e;
    
    /* Text Colors */
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --text-dim: #707070;
    
    /* Glow Effects */
    --glow-green: 0 0 10px rgba(0, 255, 65, 0.5), 0 0 20px rgba(0, 255, 65, 0.3);
    --glow-cyan: 0 0 10px rgba(0, 217, 255, 0.5), 0 0 20px rgba(0, 217, 255, 0.3);
    --glow-purple: 0 0 10px rgba(178, 75, 243, 0.5), 0 0 20px rgba(178, 75, 243, 0.3);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

/* ===================================
   Reset & Base Styles
   =================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Matrix Background Effect */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 255, 65, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 217, 255, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(178, 75, 243, 0.02) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(0deg, transparent 24%, rgba(0, 255, 65, 0.05) 25%, rgba(0, 255, 65, 0.05) 26%, transparent 27%, transparent 74%, rgba(0, 255, 65, 0.05) 75%, rgba(0, 255, 65, 0.05) 76%, transparent 77%, transparent),
        linear-gradient(90deg, transparent 24%, rgba(0, 255, 65, 0.05) 25%, rgba(0, 255, 65, 0.05) 26%, transparent 27%, transparent 74%, rgba(0, 255, 65, 0.05) 75%, rgba(0, 255, 65, 0.05) 76%, transparent 77%, transparent);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
    opacity: 0.3;
}

/* ===================================
   Custom Scrollbar
   =================================== */

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--secondary-bg);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--neon-green), var(--neon-cyan));
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--neon-cyan), var(--neon-purple));
    box-shadow: var(--glow-cyan);
}

/* ===================================
   Typography
   =================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--neon-green), var(--neon-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: var(--glow-green);
}

h2 {
    font-size: 2rem;
    color: var(--neon-cyan);
}

h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

a {
    color: var(--neon-cyan);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--neon-green);
    text-shadow: var(--glow-green);
}

/* ===================================
   Container & Layout
   =================================== */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.section {
    padding: var(--spacing-xxl) 0;
}

/* ===================================
   Header Styles
   =================================== */

header {
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 255, 65, 0.2);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--neon-green);
    text-shadow: var(--glow-green);
}

.logo span {
    color: var(--neon-cyan);
}

nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

nav a {
    color: var(--text-primary);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

nav a:hover {
    background: rgba(0, 255, 65, 0.1);
    color: var(--neon-green);
    box-shadow: var(--glow-green);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: 2px solid var(--neon-green);
    color: var(--neon-green);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

.mobile-menu-toggle:hover {
    background: rgba(0, 255, 65, 0.1);
    box-shadow: var(--glow-green);
}

/* ===================================
   Hero Section
   =================================== */

.hero {
    text-align: center;
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, rgba(0, 255, 65, 0.05), rgba(0, 217, 255, 0.05));
    border-bottom: 1px solid rgba(0, 255, 65, 0.2);
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
    animation: glow-pulse 2s ease-in-out infinite;
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
    color: var(--text-secondary);
}

@keyframes glow-pulse {
    0%, 100% {
        filter: drop-shadow(0 0 5px rgba(0, 255, 65, 0.5));
    }
    50% {
        filter: drop-shadow(0 0 20px rgba(0, 255, 65, 0.8));
    }
}

/* ===================================
   Search Bar
   =================================== */

.search-container {
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    position: relative;
}

.search-bar {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(17, 24, 39, 0.8);
    border: 2px solid rgba(0, 255, 65, 0.3);
    border-radius: var(--radius-xl);
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.search-bar:focus {
    border-color: var(--neon-green);
    box-shadow: var(--glow-green);
}

.search-bar::placeholder {
    color: var(--text-dim);
}

/* ===================================
   Category Tabs
   =================================== */

.category-tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.category-tab {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: rgba(17, 24, 39, 0.6);
    border: 2px solid rgba(0, 255, 65, 0.2);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    backdrop-filter: blur(5px);
}

.category-tab:hover {
    background: rgba(0, 255, 65, 0.1);
    border-color: var(--neon-green);
    color: var(--neon-green);
    box-shadow: var(--glow-green);
    transform: translateY(-2px);
}

.category-tab.active {
    background: var(--neon-green);
    color: var(--primary-bg);
    border-color: var(--neon-green);
    box-shadow: var(--glow-green);
}

/* ===================================
   Tool Grid
   =================================== */

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.tool-card {
    background: var(--card-bg);
    border: 1px solid rgba(0, 255, 65, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 65, 0.1), transparent);
    transition: left 0.5s ease;
}

.tool-card:hover::before {
    left: 100%;
}

.tool-card:hover {
    border-color: var(--neon-green);
    box-shadow: var(--glow-green);
    transform: translateY(-5px);
}

.tool-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--neon-cyan);
    text-shadow: var(--glow-cyan);
}

.tool-card h3 {
    color: var(--neon-green);
    margin-bottom: var(--spacing-sm);
    font-size: 1.3rem;
}

.tool-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
}

.tool-category {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(0, 217, 255, 0.1);
    border: 1px solid var(--neon-cyan);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--neon-cyan);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===================================
   Ad Section
   =================================== */

.ad-section {
    background: rgba(17, 24, 39, 0.5);
    border: 1px dashed rgba(0, 255, 65, 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    margin: var(--spacing-xl) 0;
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ad-placeholder {
    color: var(--text-dim);
    font-size: 0.9rem;
}

/* ===================================
   Footer
   =================================== */

footer {
    background: rgba(17, 24, 39, 0.95);
    border-top: 1px solid rgba(0, 255, 65, 0.2);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
    margin-top: var(--spacing-xxl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
    color: var(--neon-green);
    margin-bottom: var(--spacing-md);
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--spacing-sm);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(0, 255, 65, 0.1);
    border: 1px solid var(--neon-green);
    border-radius: 50%;
    color: var(--neon-green);
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--neon-green);
    color: var(--primary-bg);
    box-shadow: var(--glow-green);
    transform: scale(1.1);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(0, 255, 65, 0.2);
    color: var(--text-dim);
}

/* ===================================
   Buttons
   =================================== */

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--neon-green);
    color: var(--primary-bg);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.btn:hover {
    background: var(--neon-cyan);
    box-shadow: var(--glow-cyan);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--neon-cyan);
    color: var(--neon-cyan);
}

.btn-secondary:hover {
    background: var(--neon-cyan);
    color: var(--primary-bg);
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    nav ul {
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(17, 24, 39, 0.98);
        padding: var(--spacing-lg);
        display: none;
        border-bottom: 1px solid rgba(0, 255, 65, 0.2);
    }
    
    nav ul.active {
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .category-tabs {
        gap: var(--spacing-xs);
    }
    
    .category-tab {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
}

/* ===================================
   Utility Classes
   =================================== */

.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}