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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: #e2e8f0;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #60a5fa;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: #e2e8f0;
    text-decoration: none;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: #60a5fa;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background: #60a5fa;
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.mobile-menu {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.mobile-menu span {
    width: 25px;
    height: 3px;
    background: #e2e8f0;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 40%, rgba(96, 165, 250, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 60%, rgba(168, 85, 247, 0.1) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #60a5fa 0%, #a855f7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .subtitle {
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    color: #94a3b8;
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(96, 165, 250, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(96, 165, 250, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #e2e8f0;
    border: 2px solid #374151;
}

.btn-secondary:hover {
    background: #374151;
    transform: translateY(-2px);
}

/* Sections */
section {
    padding: 5rem 0;
    position: relative;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #f8fafc;
}

.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: linear-gradient(135deg, #60a5fa 0%, #a855f7 100%);
    margin: 1rem auto;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text {
    font-size: 1.1rem;
    color: #cbd5e1;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.stat-card {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid #334155;
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: #60a5fa;
}

.stat-label {
    color: #94a3b8;
    margin-top: 0.5rem;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid #334155;
    border-radius: 15px;
    padding: 2rem;
    transition: transform 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-5px);
}

.skill-category h3 {
    color: #60a5fa;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.skills-list {
    list-style: none;
}

.skills-list li {
    padding: 0.5rem 0;
    color: #cbd5e1;
    display: flex;
    align-items: center;
}

.skills-list li::before {
    content: '▶';
    color: #60a5fa;
    margin-right: 0.5rem;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid #334155;
    border-radius: 15px;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(135deg, #60a5fa 0%, #a855f7 100%);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.project-card h3 {
    color: #f8fafc;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.project-card p {
    color: #cbd5e1;
    margin-bottom: 1.5rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tag {
    background: rgba(96, 165, 250, 0.1);
    color: #60a5fa;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.project-links {
    display: flex;
    gap: 1rem;
}

.project-links a {
    color: #60a5fa;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.project-links a:hover {
    color: #3b82f6;
}

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

.education-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, #60a5fa 0%, #a855f7 100%);
    transform: translateX(-50%);
}

.education-item {
    margin: 2rem 0;
    position: relative;
}

.education-content {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid #334155;
    border-radius: 15px;
    padding: 2rem;
    width: 45%;
    position: relative;
}

.education-item:nth-child(odd) .education-content {
    margin-left: auto;
}

.education-content::before {
    content: '';
    position: absolute;
    top: 20px;
    width: 15px;
    height: 15px;
    background: #60a5fa;
    border-radius: 50%;
}

.education-item:nth-child(odd) .education-content::before {
    left: -30px;
}

.education-item:nth-child(even) .education-content::before {
    right: -30px;
}

.education-degree {
    color: #f8fafc;
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.education-school {
    color: #60a5fa;
    margin-bottom: 0.5rem;
}

.education-year {
    color: #94a3b8;
    font-size: 0.9rem;
}

/* Contact Section */
.contact-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.contact-item {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid #334155;
    border-radius: 15px;
    padding: 2rem;
    transition: transform 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
}

.contact-item h3 {
    color: #60a5fa;
    margin-bottom: 1rem;
}

.contact-item a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: #60a5fa;
}

/* Footer */
footer {
    background: rgba(15, 23, 42, 0.8);
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid #334155;
}

/* Scroll indicator */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(135deg, #60a5fa 0%, #a855f7 100%);
    z-index: 1001;
    transition: width 0.25s ease;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Button Ripple Effect */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: scale(0);
    animation: ripple-animation 0.6s linear;
    pointer-events: none;
}

@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(15, 23, 42, 0.98);
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu {
        display: flex;
    }

    .hero-buttons {
        justify-content: center;
    }

    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

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

    .education-timeline::before {
        left: 20px;
    }

    .education-content {
        width: calc(100% - 60px);
        margin-left: 60px !important;
    }

    .education-item:nth-child(odd) .education-content::before,
    .education-item:nth-child(even) .education-content::before {
        left: -30px;
        right: auto;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    section {
        padding: 3rem 0;
    }

    .section-title {
        font-size: 2rem;
    }

    .project-card,
    .skill-category,
    .stat-card,
    .contact-item {
        padding: 1.5rem;
    }
}