:root {
    --bg-color: #0d1117;
    --text-color: #c9d1d9;
    --accent-color: #58a6ff;
    --error-color: #f85149;
    --success-color: #3fb950;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.preloader.hidden {
    opacity: 0;
    pointer-events: none;
}

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

.preloader-logo img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin-bottom: 20px;
}

.preloader-text {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.preloader-subtext {
    color: #8b949e;
    font-size: 0.9rem;
}

.mesh-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 40% 20%, rgba(248, 81, 73, 0.1) 0%, transparent 50%);
    z-index: -1;
    pointer-events: none;
}

.side-menu {
    position: fixed;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 1000;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.side-menu.closed {
    transform: translateY(-50%) translateX(90px);
    opacity: 0;
    pointer-events: none;
}

.menu-toggle-btn {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 14px;
    color: var(--text-color);
    cursor: pointer;
    z-index: 1100;
    transition: all 0.2s ease;
    backdrop-filter: blur(10px);
}

.menu-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: scale(1.05);
}

.menu-item {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 14px;
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.2s ease;
    position: relative;
}

.menu-item:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: scale(1.1);
}

.theme-toggle {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.main-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

.hero-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 24px;
    padding: 60px;
    text-align: center;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
    margin-bottom: 40px;
}

.glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
    z-index: 0;
    pointer-events: none;
}

.hero-card > * {
    position: relative;
    z-index: 1;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto 30px;
    border: 3px solid rgba(102, 126, 234, 0.3);
    overflow: hidden;
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

h1 {
    font-size: 3rem;
    font-weight: 800;
    margin: 0 0 10px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subhead {
    font-size: 1.2rem;
    color: #8b949e;
    margin-bottom: 20px;
}

.tech-stack {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.tech-badge {
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.3);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    color: #667eea;
}

.button-group {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 25px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--text-color);
    border: 2px solid var(--accent-color);
}

.btn-outline:hover {
    background: var(--accent-color);
    color: white;
}

.section-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 24px;
    padding: 40px;
    margin-bottom: 40px;
    backdrop-filter: blur(10px);
}

.section-card h2 {
    font-size: 2rem;
    margin: 0 0 30px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 15px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
}

.skill-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 25px;
    text-align: center;
    transition: all 0.3s ease;
}

.skill-item:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.skill-icon {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 15px;
}

.skill-name {
    font-weight: 600;
    margin-bottom: 5px;
}

.skill-level {
    font-size: 0.85rem;
    color: #8b949e;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.project-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 30px;
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.project-item:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.project-icon {
    font-size: 2.5rem;
    color: var(--accent-color);
}

.project-name {
    font-weight: 600;
    font-size: 1.1rem;
}

.project-desc {
    color: #8b949e;
    font-size: 0.9rem;
    text-align: center;
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 40px 0;
}

.bento-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 25px;
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.bento-item:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.bento-icon {
    font-size: 2rem;
    color: var(--accent-color);
}

.bento-label {
    font-size: 0.9rem;
    color: #8b949e;
    margin-bottom: 5px;
}

.bento-value {
    font-weight: 600;
}

.footer {
    text-align: center;
    padding: 40px 20px;
    color: #8b949e;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 60px;
}

@media (max-width: 768px) {
    .side-menu {
        right: 10px;
    }

    .hero-card, .section-card {
        padding: 40px 20px;
    }

    h1 {
        font-size: 2rem;
    }

    .button-group {
        flex-direction: column;
        align-items: center;
    }

    .menu-toggle-btn {
        top: 10px;
        right: 10px;
    }

    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }
}