:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --border-color: #e5e7eb;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 2rem 1rem;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-primary);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Header Section */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 3rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: pulse 15s ease-in-out infinite;
}

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

.profile-image {
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    font-weight: bold;
    color: white;
    animation: scaleIn 0.6s ease-out 0.2s both;
}

@keyframes scaleIn {
    from {
        transform: scale(0);
    }
    to {
        transform: scale(1);
    }
}

.name {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
}

.tagline {
    font-size: 1.2rem;
    opacity: 0.95;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.social-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.social-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 50px;
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.social-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* Section Styles */
.section {
    padding: 2.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
}

.section:last-of-type {
    border-bottom: none;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    position: relative;
    padding-bottom: 0.5rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
    border-radius: 2px;
}

/* About Section */
.about-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.skill-card {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.skill-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.skill-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.skill-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--primary-color), var(--primary-dark));
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.44rem;
    top: 0.3rem;
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border: 3px solid white;
    border-radius: 50%;
    box-shadow: var(--shadow);
}

.timeline-date {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.timeline-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.3rem;
    color: var(--text-primary);
}

.company {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.timeline-content p:last-child {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    gap: 1.5rem;
}

.project-card {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
    transition: all 0.3s ease;
}

.project-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateX(5px);
}

.project-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.project-card > p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.project-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Contact Section */
.contact-section {
    text-align: center;
    background: var(--bg-secondary);
}

.contact-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    background: var(--bg-secondary);
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 1rem;
    }

    .container {
        border-radius: 12px;
    }

    .header {
        padding: 2rem 1rem;
    }

    .name {
        font-size: 2rem;
    }

    .tagline {
        font-size: 1rem;
    }

    .section {
        padding: 2rem 1.5rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

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

    .timeline {
        padding-left: 1.5rem;
    }

    .social-links {
        flex-direction: column;
        align-items: stretch;
    }

    .social-btn {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .avatar {
        width: 100px;
        height: 100px;
        font-size: 2.5rem;
    }

    .name {
        font-size: 1.8rem;
    }

    .section {
        padding: 1.5rem 1rem;
    }
}