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

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a25;
    --bg-card-hover: #222233;
    --border: #2a2a3a;
    --text-primary: #e8e8f0;
    --text-secondary: #8888aa;
    --accent: #7c3aed;
    --accent-glow: rgba(124, 58, 237, 0.3);
    --pink: #ec4899;
    --green: #22c55e;
    --blue: #3b82f6;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    display: flex;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.sidebar-header {
    padding: 30px 20px;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.avatar {
    display: flex;
    justify-content: center;
    margin-bottom: 15px;
}

.avatar-ring {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--pink));
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 var(--accent-glow); }
    50% { box-shadow: 0 0 20px 10px var(--accent-glow); }
}

.avatar-text {
    font-size: 32px;
    font-weight: 700;
    color: white;
}

.profile-name {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 5px;
}

.profile-tagline {
    color: var(--text-secondary);
    font-size: 14px;
}

.sidebar-nav {
    flex: 1;
    padding: 20px 10px;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 15px;
    border-radius: 10px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
    font-size: 14px;
}

.nav-item:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.nav-item.active {
    background: linear-gradient(135deg, var(--accent), var(--pink));
    color: white;
}

.nav-icon {
    font-size: 18px;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--border);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--green);
    border-radius: 50%;
    animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Main Content */
.main-content {
    margin-left: 280px;
    flex: 1;
    padding: 30px 40px;
    min-height: 100vh;
}

.section {
    display: none;
}

.section.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.section-header h2 {
    font-size: 28px;
    font-weight: 600;
}

.last-updated {
    color: var(--text-secondary);
    font-size: 13px;
    font-family: 'JetBrains Mono', monospace;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: all 0.2s ease;
}

.stat-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px var(--accent-glow);
}

.stat-icon {
    font-size: 28px;
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-value {
    font-size: 18px;
    font-weight: 600;
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 25px;
}

.card h3 {
    font-size: 16px;
    margin-bottom: 10px;
    color: var(--accent);
}

.card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Skills Grid */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
}

.skill-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: all 0.2s ease;
}

.skill-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.skill-icon {
    font-size: 24px;
}

.skill-name {
    font-weight: 600;
    font-size: 15px;
}

.skill-desc {
    font-size: 12px;
    color: var(--text-secondary);
    display: block;
    margin-top: 3px;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 25px;
    transition: all 0.2s ease;
}

.project-card:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.project-icon {
    font-size: 28px;
}

.project-badge {
    background: var(--accent);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.project-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.project-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 15px;
}

.project-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tag {
    background: var(--bg-primary);
    color: var(--text-secondary);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 11px;
}

/* Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 15px;
}

.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    transition: all 0.2s ease;
}

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

.tool-card img {
    width: 40px;
    height: 40px;
}

.tool-card span {
    font-size: 13px;
    font-weight: 500;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.about-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 25px;
}

.about-card h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: var(--accent);
}

.about-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.about-card ul {
    list-style: none;
}

.about-card li {
    padding: 8px 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
}

.about-card li:last-child {
    border-bottom: none;
}

/* Social Links */
.social-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.social-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.2s ease;
}

.social-btn img {
    width: 20px;
    height: 20px;
}

.social-btn.github {
    background: #24292e;
    color: white;
}

.social-btn.github:hover {
    background: #2f363d;
}

.social-btn.tiktok {
    background: #010101;
    color: white;
}

.social-btn.tiktok:hover {
    background: #1a1a1a;
}

.social-btn.email {
    background: var(--accent);
    color: white;
}

.social-btn.email:hover {
    background: #6d28d9;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 70px;
        overflow: hidden;
    }
    
    .sidebar-header {
        padding: 20px 10px;
    }
    
    .profile-name, .profile-tagline {
        display: none;
    }
    
    .nav-item span:not(.nav-icon) {
        display: none;
    }
    
    .nav-item {
        justify-content: center;
        padding: 12px;
    }
    
    .main-content {
        margin-left: 70px;
        padding: 20px;
    }
    
    .section-header {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}