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

:root {
    /* Phosphorescent Green Colors */
    --primary-green: #00ff88;
    --secondary-green: #00cc6a;
    --dark-green: #009954;
    --light-green: #33ff99;
    --neon-green: #00ffaa;
    
    /* Background Colors */
    --bg-dark: #0a0a0f;
    --bg-secondary: #151520;
    --bg-card: #1a1a2e;
    --bg-hover: #252540;
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #888888;
    
    /* Shadow Effects */
    --glow-small: 0 0 5px var(--primary-green);
    --glow-medium: 0 0 10px var(--primary-green), 0 0 20px var(--primary-green);
    --glow-large: 0 0 15px var(--primary-green), 0 0 30px var(--primary-green), 0 0 45px var(--primary-green);
}

body {
    font-family: 'Cairo', sans-serif;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Animated Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(0, 255, 136, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 255, 170, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(0, 204, 106, 0.05) 0%, transparent 50%);
    z-index: -1;
    animation: backgroundPulse 8s ease-in-out infinite alternate;
}

@keyframes backgroundPulse {
    0% { opacity: 0.3; }
    100% { opacity: 0.7; }
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
    z-index: 1;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 40px;
    padding: 40px 20px;
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-hover) 100%);
    border-radius: 20px;
    border: 2px solid var(--primary-green);
    box-shadow: var(--glow-medium);
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(0, 255, 136, 0.1), transparent);
    animation: headerShine 3s linear infinite;
}

@keyframes headerShine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.header-content {
    position: relative;
    z-index: 2;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

.logo i {
    font-size: 3rem;
    color: var(--primary-green);
    text-shadow: var(--glow-small);
    animation: iconPulse 2s ease-in-out infinite alternate;
}

@keyframes iconPulse {
    0% { transform: scale(1); }
    100% { transform: scale(1.1); }
}

.logo h1 {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    letter-spacing: 2px;
}

.highlight {
    color: var(--primary-green);
    text-shadow: var(--glow-small);
    animation: textGlow 2s ease-in-out infinite alternate;
}

@keyframes textGlow {
    0% { text-shadow: 0 0 5px var(--primary-green); }
    100% { text-shadow: 0 0 10px var(--primary-green), 0 0 20px var(--primary-green); }
}

.subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    font-weight: 300;
    margin-top: 10px;
}

/* Search Section */
.search-section {
    margin-bottom: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.search-container {
    display: flex;
    max-width: 800px;
    width: 100%;
    position: relative;
}

#searchInput {
    flex: 1;
    padding: 18px 25px;
    font-size: 1.1rem;
    background: var(--bg-card);
    color: var(--text-primary);
    border: 2px solid var(--primary-green);
    border-radius: 50px;
    outline: none;
    transition: all 0.3s ease;
    font-family: 'Cairo', sans-serif;
    direction: rtl;
}

#searchInput:focus {
    box-shadow: var(--glow-medium);
    transform: translateY(-2px);
    border-color: var(--neon-green);
}

#searchInput::placeholder {
    color: var(--text-muted);
}

.search-btn {
    position: absolute;
    left: 5px;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-green), var(--secondary-green));
    border: none;
    border-radius: 50%;
    color: var(--bg-dark);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-btn:hover {
    background: linear-gradient(135deg, var(--neon-green), var(--primary-green));
    transform: translateY(-50%) scale(1.1);
    box-shadow: var(--glow-small);
}

.suggest-resource {
    margin-top: 10px;
}

.suggest-btn {
    padding: 12px 30px;
    background: linear-gradient(135deg, var(--dark-green), var(--secondary-green));
    color: var(--text-primary);
    border: 2px solid var(--primary-green);
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Cairo', sans-serif;
}

.suggest-btn:hover {
    background: linear-gradient(135deg, var(--secondary-green), var(--primary-green));
    transform: translateY(-3px);
    box-shadow: var(--glow-medium);
}

/* Filters */
.filters {
    margin-bottom: 40px;
    text-align: center;
}

.filters h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--primary-green);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 25px;
    background: var(--bg-card);
    color: var(--text-secondary);
    border: 2px solid var(--text-muted);
    border-radius: 25px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Cairo', sans-serif;
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    background: linear-gradient(135deg, var(--primary-green), var(--secondary-green));
    color: var(--bg-dark);
    border-color: var(--primary-green);
    transform: translateY(-2px);
    box-shadow: var(--glow-small);
}

/* Categories Grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
    margin-bottom: 60px;
}

.category-card {
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-hover) 100%);
    padding: 30px 25px;
    border-radius: 20px;
    border: 2px solid transparent;
    transition: all 0.4s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    min-height: 180px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-green), var(--secondary-green));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.category-card:hover::before {
    opacity: 0.1;
}

.category-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--primary-green);
    box-shadow: var(--glow-large);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    position: relative;
    z-index: 2;
}

.card-header i {
    font-size: 2.5rem;
    color: var(--primary-green);
    text-shadow: var(--glow-small);
    transition: all 0.3s ease;
}

.category-card:hover .card-header i {
    transform: scale(1.2) rotate(5deg);
    color: var(--neon-green);
}

.card-header h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
}

.category-card p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.5;
    position: relative;
    z-index: 2;
}

.category-card:hover p {
    color: var(--text-primary);
}

/* Footer */
.footer {
    margin-top: 80px;
    padding: 40px 20px;
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-hover) 100%);
    border-radius: 20px;
    border: 2px solid var(--primary-green);
    text-align: center;
    box-shadow: var(--glow-small);
}

.footer-content p {
    margin-bottom: 10px;
    color: var(--text-secondary);
}

.footer-content p:first-child {
    color: var(--primary-green);
    font-weight: 600;
    font-size: 1.1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .logo h1 {
        font-size: 2.5rem;
    }
    
    .logo i {
        font-size: 2rem;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .search-container {
        flex-direction: column;
        gap: 15px;
    }
    
    .search-btn {
        position: static;
        transform: none;
        width: auto;
        height: auto;
        padding: 15px 30px;
        border-radius: 25px;
    }
    
    #searchInput {
        border-radius: 25px;
    }
    
    .filter-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .card-header {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .card-header h3 {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 2rem;
    }
    
    .subtitle {
        font-size: 1.1rem;
    }
    
    .category-card {
        padding: 20px;
        min-height: 150px;
    }
    
    .card-header i {
        font-size: 2rem;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 12px;
}

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-green), var(--secondary-green));
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--neon-green), var(--primary-green));
}

/* Loading Animation */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* User Info Styles */
.user-info {
    margin-top: 20px;
    padding: 20px;
    background: var(--bg-dark);
    border-radius: 15px;
    border: 1px solid var(--primary-green);
}

.user-info h4 {
    color: var(--primary-green);
    margin-bottom: 15px;
    font-size: 1.1rem;
    text-align: center;
}

.user-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.username {
    color: var(--neon-green);
    font-weight: 600;
    font-size: 1.1rem;
    text-shadow: 0 0 5px var(--primary-green);
}

.social-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 15px;
    border: 1px solid var(--text-muted);
    border-radius: 20px;
    background: var(--bg-card);
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.social-link:hover {
    color: var(--primary-green);
    border-color: var(--primary-green);
    background: var(--bg-hover);
    transform: translateY(-2px);
    box-shadow: 0 0 8px rgba(0, 255, 136, 0.3);
}

.social-link i {
    font-size: 1rem;
}

@media (min-width: 600px) {
    .user-links {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
    }
}