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

:root {
    --bg-primary: #0a192f;
    --bg-secondary: #112240;
    --accent: #64ffda;
    --accent-hover: #4fd1b0;
    --text-primary: #ccd6f6;
    --text-secondary: #8892b0;
    --card-bg: rgba(17, 34, 64, 0.8);
    --border-color: rgba(100, 255, 218, 0.1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.language-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 100;
    background: var(--card-bg);
    padding: 10px 20px;
    border-radius: 30px;
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
}

.language-toggle a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
    padding: 5px 10px;
}

.language-toggle a:hover,
.language-toggle a.active {
    color: var(--accent);
}

.language-toggle span {
    color: var(--text-secondary);
}

.container {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    padding: 80px 20px 40px;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 60px 20px;
    margin-bottom: 30px;
}

.avatar {
    width: 150px;
    height: 150px;
    margin: 0 auto 30px;
    background: linear-gradient(135deg, var(--accent), #0a192f);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: float 3s ease-in-out infinite;
    box-shadow: 0 0 40px rgba(100, 255, 218, 0.3);
    overflow: hidden;
    padding: 4px;
}

.avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--text-primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.experience-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent), #0a192f);
    color: var(--bg-primary);
    padding: 8px 24px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.9rem;
}

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 25px;
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(100, 255, 218, 0.3);
}

.card h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.card h2 i {
    color: var(--accent);
}

.card p {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.project-item {
    background: var(--bg-primary);
    padding: 20px;
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.project-item:hover {
    background: var(--bg-secondary);
    border-color: var(--accent);
    transform: scale(1.02);
}

.project-item i {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 12px;
}

.project-item span {
    font-weight: 600;
    margin-bottom: 5px;
}

.project-item small {
    color: var(--text-secondary);
    font-size: 0.85rem;
}


/* Skills */
.skills-container {
    display: grid;
    gap: 25px;
}

.skill-category h3 {
    color: var(--accent);
    font-size: 1rem;
    margin-bottom: 12px;
    font-weight: 500;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    background: var(--bg-primary);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

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

/* Contact Grid */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 15px;
}

.contact-item {
    background: var(--bg-primary);
    padding: 20px;
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.contact-item:hover {
    background: var(--bg-secondary);
    border-color: var(--accent);
    transform: scale(1.02);
}

.contact-item i {
    font-size: 1.8rem;
    color: var(--accent);
    margin-bottom: 10px;
}

.contact-item span {
    font-weight: 600;
    margin-bottom: 5px;
}

.contact-item small {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 30px 20px;
    color: var(--text-secondary);
    position: relative;
    z-index: 1;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s ease forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero .subtitle {
        font-size: 1.1rem;
    }
    
    .container {
        padding: 70px 15px 30px;
    }
    
    .card {
        padding: 20px;
    }
    
    .projects-grid,
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .language-toggle {
        top: 15px;
        right: 15px;
        padding: 8px 15px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .avatar {
        width: 100px;
        height: 100px;
        font-size: 40px;
    }
    
    .projects-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .card h2 {
        font-size: 1.3rem;
    }
}

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

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

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

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