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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #f1f5f9;
    --accent: #06b6d4;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --background: #ffffff;
    --surface: #f8fafc;
    --border: #e2e8f0;
    --shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-lg: 0 25px 50px -12px rgb(0 0 0 / 0.25);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, #667eea 0%, #4b6fa2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 2rem auto;
    background: var(--background);
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Header */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 50%, var(--accent) 100%);
    color: white;
    padding: 80px 60px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='7' cy='7' r='1'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
    
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(2deg); }
}

.profile-section {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 60px;
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    /* margin-bottom: 16px; */
    font-weight: 700;
    background: linear-gradient(45deg, #ffffff, #e2e8f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.title {
    font-size: 1.5rem;
    margin-bottom: 40px;
    opacity: 0.95;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.contact-item i {
    width: 20px;
    text-align: center;
    font-size: 1.1rem;
}

.contact-item a {
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
}

.contact-item a:hover {
    color: #e2e8f0;
}

.hero-visual {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    position: relative;
    /*animation: pulse 3s ease-in-out infinite;*/
    overflow: hidden;
    border: 4px solid rgba(255,255,255,0.3);
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
    backdrop-filter: blur(10px);
}

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

.hero-visual::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(99, 102, 241, 0.1), rgba(6, 182, 212, 0.1));
    border-radius: 50%;
    pointer-events: none;
}

/*@keyframes pulse {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 8px 32px rgba(0,0,0,0.3);
    }
    50% { 
        transform: scale(1.05);
        box-shadow: 0 12px 40px rgba(99, 102, 241, 0.4);
    }
}

/* Main Content */
main {
    background: var(--background);
}

.section {
    padding: 100px 0;
    position: relative;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.section:nth-child(1) { animation-delay: 0.1s; }
.section:nth-child(2) { animation-delay: 0.2s; }
.section:nth-child(3) { animation-delay: 0.3s; }
.section:nth-child(4) { animation-delay: 0.4s; }
.section:nth-child(5) { animation-delay: 0.5s; }

.section:nth-child(even) {
    background: var(--surface);
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 60px;
}

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

h2 {
    color: var(--text-primary);
    font-size: 2.5rem;
    margin-bottom: 40px;
    font-weight: 700;
    position: relative;
    display: inline-block;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 2px;
}

/* About Section */
.about-content p {
    margin-bottom: 24px;
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    max-width: 800px;
}

.highlight-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 50px;
    max-width: 600px;
}

.stat {
    text-align: center;
    padding: 30px 20px;
    background: var(--background);
    border-radius: 16px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.stat:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Experience Section - Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary), var(--accent));
}

.timeline-item {
    position: relative;
    margin-bottom: 60px;
    padding-left: 80px;
}

.timeline-dot {
    position: absolute;
    left: 20px;
    top: 0;
    width: 20px;
    height: 20px;
    background: var(--primary);
    border-radius: 50%;
    border: 4px solid var(--background);
    box-shadow: 0 0 0 4px var(--primary);
}

.timeline-content {
    background: var(--background);
    padding: 30px;
    border-radius: 16px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.timeline-content:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.timeline-content h3 {
    color: var(--text-primary);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.timeline-content .company {
    color: var(--primary);
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 6px;
}

.timeline-content .period {
    color: var(--text-secondary);
    font-size: 0.9rem;
    background: var(--secondary);
    padding: 4px 12px;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 16px;
}

.timeline-content .description {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 1rem;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.skill-category {
    background: var(--background);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.skill-category h3 {
    color: var(--text-primary);
    margin-bottom: 20px;
    font-size: 1.4rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 12px;
}

.skill-category h3::before {
    content: '';
    width: 32px;
    height: 32px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    flex-shrink: 0;
}

.skill-category:nth-child(1) h3::before {
    background-image: url('backend.jpg');
}

.skill-category:nth-child(2) h3::before {
    background-image: url('frontend.jpg');
}

.skill-category:nth-child(3) h3::before {
    background-image: url('database.png');
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.skill-tag {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    padding: 8px 16px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: default;
}

.skill-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.project-card {
    background: var(--background);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.project-header h3 {
    color: var(--text-primary);
    font-size: 1.4rem;
    font-weight: 700;
    margin: 0;
}

.project-type {
    background: var(--secondary);
    color: var(--text-secondary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.project-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.tech-tag {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.project-link:hover {
    color: var(--accent);
    transform: translateX(4px);
}

/* Education Section */
.education-item {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 8px;
    border-left: 4px solid #f39c12;
}

.education-item h3 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.education-item p {
    color: #7f8c8d;
    margin-bottom: 5px;
}

/* Personal Info Section */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 15px;
}

.info-item {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 6px;
    border-left: 3px solid #9b59b6;
}

.info-item strong {
    color: #2c3e50;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.contact-card {
    background: var(--background);
    padding: 30px;
    border-radius: 16px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.contact-card i {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 16px;
}

.contact-card h3 {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.contact-card p,
.contact-card a {
    color: var(--text-secondary);
    font-size: 0.95rem;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-card a:hover {
    color: var(--primary);
}

.cv-download-section {
    background: linear-gradient(135deg, var(--surface), rgba(6, 182, 212, 0.05));
    padding: 40px;
    border-radius: 20px;
    border: 1px solid var(--border);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cv-download-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.1) 0%, transparent 70%);
    animation: rotate 15s linear infinite reverse;
}

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

.cv-download-section h3 {
    color: var(--text-primary);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.cv-download-section p {
    margin-bottom: 24px;
    font-size: 1rem;
    color: var(--text-secondary);
    position: relative;
    z-index: 1;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    padding: 16px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.3);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.download-btn:hover::before {
    left: 100%;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(99, 102, 241, 0.4);
}

.download-btn i {
    font-size: 1.1rem;
}

/* Footer */
footer {
    background: linear-gradient(135deg, var(--text-primary), #1e293b);
    color: white;
    text-align: center;
    padding: 40px;
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M20 20c0 11.046-8.954 20-20 20v-20h20z'/%3E%3C/g%3E%3C/svg%3E") repeat;
}

footer p {
    margin-bottom: 8px;
    opacity: 0.9;
    position: relative;
    z-index: 1;
    font-size: 0.95rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        margin: 1rem;
        border-radius: 16px;
    }
    
    .hero {
        padding: 60px 30px;
    }
    
    .profile-section {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-visual {
        margin: 0 auto;
    }
    
    .section {
        padding: 80px 0;
    }
    
    .section-container {
        padding: 0 30px;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .highlight-stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-info-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 15px;
    }
    
    .timeline-item {
        padding-left: 50px;
    }
    
    .timeline-dot {
        left: 5px;
    }
    
    h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        margin: 0.5rem;
    }
    
    .hero {
        padding: 40px 20px;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-container {
        padding: 0 20px;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .skill-category, .project-card, .timeline-content, .contact-card {
        padding: 25px;
    }
    
    .cv-download-section {
        padding: 30px 20px;
    }
    
    .highlight-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }
    
    .stat {
        padding: 20px 15px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
}