:root {
    --primary: #00fff7;
    --secondary: #ff00ff;
    --bg: #0a0a0a;
    --card: #1a1a1a;
    --text: #e0e0e0;
    --text-dim: #888;
    --matrix-red: #ff0000;
    --matrix-green: #00ff00;
}

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

body {
    font-family: system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.4;
    position: relative;
    overflow-x: hidden;
}

/* Matrix Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, 
        rgba(0, 20, 0, 0.1) 0%, 
        rgba(0, 0, 0, 0.95) 100%);
    z-index: -2;
    pointer-events: none;
}

/* Enhanced Matrix Rain Effect */
.matrix-rain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    opacity: 0.25;
    background-image: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 1px,
            rgba(0, 255, 100, 0.03) 1px,
            rgba(0, 255, 100, 0.03) 3px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 1px,
            rgba(0, 255, 150, 0.02) 1px,
            rgba(0, 255, 150, 0.02) 3px
        );
    animation: matrixRain 8s linear infinite;
}

/* Matrix Scan Effect */
.matrix-rain::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(0, 255, 100, 0.15), 
        transparent);
    animation: matrixScan 4s ease-in-out infinite;
}

@keyframes matrixRain {
    0% { transform: translateY(0); }
    100% { transform: translateY(20px); }
}

@keyframes matrixScan {
    0% { left: -100%; }
    50% { left: 100%; }
    100% { left: 100%; }
}

/* Unified Header */
.unified-header {
    background: linear-gradient(135deg, 
        rgba(26, 26, 26, 0.95) 0%, 
        rgba(0, 30, 0, 0.15) 50%, 
        rgba(26, 26, 26, 0.95) 100%);
    border-bottom: 2px solid rgba(0, 255, 100, 0.6);
    padding: 0.8rem 1rem;
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.8);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: bold;
    color: var(--primary);
    text-shadow: 0 0 12px var(--primary);
    font-size: 1.8rem;
}

.logo img {
    width: 32px;
    height: 32px;
    filter: drop-shadow(0 0 8px var(--primary));
    animation: logoGlow 3s ease-in-out infinite;
}

@keyframes logoGlow {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

nav button {
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
}

nav button:hover,
nav button.active {
    background: var(--primary);
    color: var(--bg);
}

/* Activity Graph in Header */
.unified-header .activity-graph {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0;
    padding: 0.3rem 1rem;
    background: linear-gradient(135deg, 
        rgba(0, 0, 0, 0.9) 0%, 
        rgba(0, 30, 0, 0.2) 50%, 
        rgba(0, 0, 0, 0.9) 100%);
    border: 1px solid rgba(0, 255, 100, 0.4);
    border-radius: 4px;
    box-shadow: 
        0 0 15px rgba(0, 255, 100, 0.3),
        inset 0 0 15px rgba(0, 255, 100, 0.1);
    position: relative;
    backdrop-filter: blur(8px);
    overflow: hidden;
    flex-shrink: 0;
    min-width: 400px;
}



.unified-header .activity-weeks {
    display: grid;
    grid-template-columns: repeat(14, 1fr);
    gap: 0.15rem;
}

.unified-header .activity-day {
    width: 14px;
    height: 14px;
    border-radius: 3px;
    background: rgba(0, 0, 0, 0.8);
    border: 1px solid rgba(0, 255, 0, 0.2);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.activity-day::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(0, 255, 0, 0.8), transparent);
    transform: translate(-50%, -50%);
    transition: all 0.4s ease;
    border-radius: 50%;
}

.activity-day:hover {
    transform: scale(1.4) rotate(5deg);
    box-shadow: 
        0 0 15px rgba(0, 255, 0, 1),
        0 0 25px rgba(0, 255, 0, 0.6),
        inset 0 0 10px rgba(0, 255, 0, 0.4);
    border: 2px solid rgba(0, 255, 0, 1);
    z-index: 10;
}

.activity-day:hover::before {
    width: 150%;
    height: 150%;
    opacity: 0.8;
}

.activity-day.level-1 { 
    background: rgba(0, 255, 0, 0.4) !important;
    box-shadow: 0 0 8px rgba(0, 255, 0, 0.5) !important;
    border: 1px solid rgba(0, 255, 0, 0.6) !important;
}
.activity-day.level-2 { 
    background: rgba(0, 255, 0, 0.7) !important;
    box-shadow: 0 0 10px rgba(0, 255, 0, 0.8) !important;
    border: 1px solid rgba(0, 255, 0, 0.9) !important;
}
.activity-day.level-3 { 
    background: linear-gradient(45deg, rgba(0, 255, 0, 0.6), rgba(0, 255, 0, 0.7));
    box-shadow: 0 0 10px rgba(0, 255, 0, 0.8), inset 0 0 8px rgba(0, 255, 0, 0.4);
    border: 1px solid rgba(0, 255, 0, 0.9);
    transform: scale(1.15);
}
.activity-day.level-4 { 
    background: linear-gradient(45deg, rgba(0, 255, 0, 0.8), rgba(0, 255, 0, 0.9));
    box-shadow: 0 0 12px rgba(0, 255, 0, 1), inset 0 0 10px rgba(0, 255, 0, 0.5);
    border: 1px solid rgba(0, 255, 0, 1);
    transform: scale(1.2);
}
.activity-day.level-5 { 
    background: linear-gradient(45deg, rgba(0, 255, 0, 1), rgba(150, 255, 0, 1));
    box-shadow: 
        0 0 15px rgba(0, 255, 0, 1), 
        0 0 25px rgba(0, 255, 0, 0.7),
        inset 0 0 12px rgba(0, 255, 0, 0.6);
    border: 2px solid rgba(0, 255, 0, 1);
    animation: matrixPulse 1.5s infinite;
    position: relative;
    transform: scale(1.25);
}

.activity-day.level-5::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    border: 1px solid rgba(0, 255, 247, 0.8);
    border-radius: 4px;
    animation: neonOutline 2s ease-in-out infinite;
}

.activity-day.has-activity {
    background: linear-gradient(45deg, rgba(0, 255, 0, 0.3), rgba(0, 255, 0, 0.4));
    box-shadow: 0 0 8px rgba(0, 255, 0, 0.5), inset 0 0 6px rgba(0, 255, 0, 0.3);
    border: 1px solid rgba(0, 255, 0, 0.7);
    animation: activityGlow 2s ease-in-out infinite;
}

.activity-day.has-activity::before {
    width: 100%;
    height: 100%;
    opacity: 0.6;
}

@keyframes activityGlow {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 0 10px rgba(0, 255, 247, 0.4);
    }
    50% { 
        transform: scale(1.1);
        box-shadow: 0 0 15px rgba(0, 255, 247, 0.6);
    }
}

@keyframes neonOutline {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.8; }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes matrixPulse {
    0%, 100% { 
        transform: scale(1.25);
        box-shadow: 
            0 0 15px rgba(0, 255, 0, 1), 
            0 0 25px rgba(0, 255, 0, 0.7),
            inset 0 0 12px rgba(0, 255, 0, 0.6);
    }
    50% { 
        transform: scale(1.35);
        box-shadow: 
            0 0 20px rgba(0, 255, 0, 1), 
            0 0 35px rgba(0, 255, 0, 0.9),
            inset 0 0 15px rgba(0, 255, 0, 0.8);
    }
}

/* Main */
main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem;
}

.section { display: none; }
.section.active { display: block; }

/* Filters */
.filters {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    position: relative;
}

/* Search Bar */
.search-container {
    position: relative;
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
}

.search-bar {
    background: var(--card);
    border: 1px solid var(--primary);
    color: var(--text);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    width: 300px;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.search-bar:focus {
    outline: none;
    box-shadow: 0 0 10px var(--primary);
}

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

.filters button {
    background: transparent;
    border: 1px solid var(--secondary);
    color: var(--secondary);
    padding: 0.3rem 0.6rem;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.8rem;
}

.filters button:hover,
.filters button.active {
    background: var(--secondary);
    color: var(--bg);
}

/* Blog Grid - 3 Columns */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* Blog Cards */
.blog-card {
    background: rgba(0, 20, 0, 0.15);
    border: 1px solid rgba(0, 255, 100, 0.2);
    border-radius: 6px;
    padding: 0.75rem;
    display: flex;
    gap: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
    height: 100px;
    backdrop-filter: blur(3px);
}

.blog-card:hover {
    border-color: var(--primary);
    box-shadow: 0 0 12px rgba(0, 255, 247, 0.3), 0 0 8px rgba(0, 255, 100, 0.4);
    background: rgba(0, 30, 0, 0.25);
}

.blog-image {
    width: 80px;
    height: 80px;
    border-radius: 4px;
    object-fit: cover;
    flex-shrink: 0;
}

.blog-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-width: 0;
}

.blog-title {
    font-size: 0.9rem;
    font-weight: bold;
    color: var(--primary);
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.7rem;
    color: var(--text-dim);
}

.blog-author {
    background: rgba(0, 255, 247, 0.1);
    color: var(--primary);
    padding: 0.1rem 0.3rem;
    border-radius: 4px;
}

.blog-date {
    color: var(--text-dim);
}

/* Blog Detail Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    overflow-y: auto;
}

.modal-content {
    background: var(--card);
    max-width: 800px;
    margin: 2rem auto;
    border-radius: 8px;
    border: 1px solid var(--primary);
    box-shadow: 0 0 30px rgba(0, 255, 247, 0.3);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid #333;
}

.blog-actions {
    display: flex;
    gap: 0.5rem;
}

.close-btn {
    background: transparent;
    border: 1px solid var(--secondary);
    color: var(--secondary);
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    cursor: pointer;
}

.blog-detail-content {
    padding: 1.5rem;
    max-height: 60vh;
    overflow-y: auto;
}



/* Resource Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 0.75rem;
}

/* Resource Cards */
.resource-card {
    background: rgba(0, 20, 0, 0.15);
    border: 1px solid rgba(0, 255, 100, 0.2);
    border-radius: 6px;
    padding: 0.8rem;
    transition: all 0.2s;
    cursor: pointer;
    position: relative;
    text-decoration: none;
    color: inherit;
    display: block;
    backdrop-filter: blur(3px);
}

.resource-card:hover {
    border-color: var(--secondary);
    box-shadow: 0 0 12px rgba(255, 0, 255, 0.3), 0 0 8px rgba(0, 255, 100, 0.4);
    background: rgba(0, 30, 0, 0.25);
}

.resource-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.resource-icon { font-size: 1.2rem; }

.resource-title {
    font-size: 0.85rem;
    font-weight: bold;
    color: var(--secondary);
}

.resource-desc {
    color: var(--text-dim);
    font-size: 0.75rem;
    margin-bottom: 0.5rem;
}

.resource-tags {
    display: flex;
    gap: 0.2rem;
    flex-wrap: wrap;
}

.resource-tag {
    background: rgba(255, 0, 255, 0.1);
    color: var(--secondary);
    padding: 0.1rem 0.3rem;
    border-radius: 6px;
    font-size: 0.6rem;
    border: 1px solid rgba(255, 0, 255, 0.3);
}

/* Search Results */
.search-results {
    margin-bottom: 1rem;
    min-height: 100px;
}

.search-result-item {
    background: var(--card);
    border: 1px solid var(--secondary);
    border-radius: 6px;
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: all 0.2s;
}

.search-result-item:hover {
    border-color: var(--secondary);
    box-shadow: 0 0 10px var(--secondary);
}

.search-result-title {
    color: var(--secondary);
    font-weight: bold;
    margin-bottom: 0.25rem;
}

.search-result-meta {
    color: var(--text-dim);
    font-size: 0.8rem;
}

/* News Section */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

.news-item {
    background: var(--card);
    border: 1px solid #333;
    border-radius: 6px;
    padding: 1rem;
    transition: all 0.2s;
}

.news-item:hover {
    border-color: var(--secondary);
    box-shadow: 0 0 12px rgba(255, 0, 255, 0.3);
}

.news-item h3 {
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

.news-item a {
    color: var(--secondary);
    text-decoration: none;
}

.news-item a:hover {
    text-decoration: underline;
}

.news-source {
    color: var(--text-dim);
    font-size: 0.8rem;
    margin-right: 1rem;
}

.news-date {
    color: var(--text-dim);
    font-size: 0.8rem;
}

/* Markdown Content */
.prose h1, .prose h2, .prose h3 {
    color: var(--primary);
    margin: 0.5rem 0;
}

.prose p { 
    margin-bottom: 0.5rem; 
    line-height: 1.6;
}

.prose code {
    background: rgba(0, 255, 247, 0.1);
    color: var(--primary);
    padding: 0.1rem 0.2rem;
    border-radius: 3px;
    font-family: monospace;
}

.prose pre {
    background: #000;
    padding: 0.5rem;
    border-radius: 4px;
    overflow-x: auto;
    margin-bottom: 0.5rem;
}

.prose a { 
    color: var(--primary); 
    text-decoration: underline;
}

.prose ul, .prose ol {
    margin-left: 1.5rem;
    margin-bottom: 0.5rem;
}

/* Notification */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--primary);
    color: var(--bg);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    z-index: 2000;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Responsive */
@media (max-width: 1024px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
        max-width: 800px;
    }
    
    .unified-header {
        flex-wrap: wrap;
        gap: 1rem;
        padding: 0.6rem 1rem;
    }
    
    .unified-header .activity-graph {
        max-width: 350px;
        padding: 0.3rem 0.8rem;
        order: 3;
        width: 100%;
        justify-content: center;
        min-width: 300px;
    }
    
    .unified-header .activity-weeks {
        grid-template-columns: repeat(10, 1fr);
        gap: 0.12rem;
    }
    
    .unified-header .activity-day {
        width: 12px;
        height: 12px;
    }
}

@media (max-width: 768px) {
    .unified-header {
        flex-direction: column;
        gap: 1rem;
        padding: 0.8rem 1rem;
    }
    
    .unified-header .activity-graph {
        width: 100%;
        max-width: 100%;
        padding: 0.4rem 0.6rem;
        order: 2;
        min-width: auto;
    }
    
    .unified-header .activity-weeks {
        grid-template-columns: repeat(7, 1fr);
        gap: 0.1rem;
    }
    
    .unified-header .activity-day {
        width: 10px;
        height: 10px;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
        max-width: 100%;
    }
    
    .blog-card {
        height: auto;
    }
    
    .grid {
        grid-template-columns: 1fr;
    }
    
    .filters { justify-content: center; }
    
    .modal-content {
        margin: 1rem;
        max-width: 95%;
    }
}
    
    .activity-weeks {
        grid-template-columns: repeat(12, 1fr);
        gap: 0.3rem;
    }
    
    .activity-day {
        width: 15px;
        height: 15px;
    }
}

@media (max-width: 768px) {
    header { flex-direction: column; gap: 1rem; }
    
    .blog-grid {
        grid-template-columns: 1fr;
        max-width: 100%;
    }
    
    .blog-card {
        height: auto;
    }
    

    
    .activity-weeks {
        grid-template-columns: repeat(7, 1fr);
        gap: 0.2rem;
    }
    
    .activity-day {
        width: 12px;
        height: 12px;
    }
    
    .grid {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .filters { justify-content: center; }
}