* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1a1a1a;
    background-color: #ffffff;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography */
.text-gradient {
    background: linear-gradient(135deg, #1a1a1a 0%, #4a4a4a 50%, #1a1a1a 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.25rem;
    font-weight: 300;
    color: #666;
    max-width: 48rem;
    margin: 0 auto;
    line-height: 1.7;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

/* Glass Effect */
.glass-card {
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 1rem;
    padding: 2rem;
    transition: all 0.3s ease;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-radius: 2rem;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.btn-primary {
    background: #1a1a1a;
    color: white;
}

.btn-primary:hover {
    background: #333;
    transform: translateY(-2px);
}

.btn-secondary {
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #1a1a1a;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
    padding: 1.5rem 0;
}

.nav.scrolled {
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1rem 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    cursor: pointer;
    transition: color 0.3s ease;
}

.logo:hover {
    color: #666;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: #666;
    font-weight: 500;
    font-size: 0.875rem;
    position: relative;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #1a1a1a;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -0.25rem;
    left: 0;
    width: 0;
    height: 2px;
    background: #1a1a1a;
    transition: width 0.3s ease;
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 0.25rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    width: 1.5rem;
    height: 2px;
    background: #1a1a1a;
    transition: all 0.3s ease;
}

.mobile-menu {
    display: none;
    padding: 1rem 1.5rem;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.mobile-menu a {
    display: block;
    padding: 0.75rem 0;
    text-decoration: none;
    color: #666;
    font-weight: 500;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: color 0.3s ease;
}

.mobile-menu a:hover {
    color: #1a1a1a;
}

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

.floating-element {
    position: absolute;
    opacity: 0.2;
    pointer-events: none;
    border-radius: 50%;
    background: linear-gradient(135deg, #f0f0f0, #e0e0e0);
}

.floating-1 {
    top: 10%;
    left: 10%;
    width: 8rem;
    height: 8rem;
    animation: float 6s ease-in-out infinite;
}

.floating-2 {
    top: 20%;
    right: 15%;
    width: 6rem;
    height: 6rem;
    border-radius: 1rem;
    transform: rotate(45deg);
    animation: float 4s ease-in-out infinite reverse;
}

.floating-3 {
    bottom: 20%;
    left: 20%;
    width: 4rem;
    height: 4rem;
    animation: float 8s ease-in-out infinite;
}

.floating-4 {
    bottom: 30%;
    right: 10%;
    width: 5rem;
    height: 5rem;
    border-radius: 1rem;
    animation: float 5s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 10;
    animation: fadeInUp 1s ease-out;
}

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

.hero-title {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    font-weight: 300;
    color: #666;
    margin-bottom: 2rem;
    max-width: 32rem;
    margin-left: auto;
    margin-right: auto;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: #666;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    transform: scale(1.1);
    color: #1a1a1a;
    background: rgba(255, 255, 255, 0.2);
}



.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    margin-bottom: 4rem;
    justify-content: center;
}

.scroll-indicator {
    cursor: pointer;
    animation: bounce 2s infinite;
    color: #999;
    transition: color 0.3s ease;
}

.scroll-indicator:hover {
    color: #000000;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

/* Sections */
.about, .skills, .contact {
    padding: 5rem 0;
    background: rgba(248, 248, 248, 0.5);
}

.experience, .projects {
    padding: 5rem 0;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.about-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.about-cards .glass-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.about-cards .glass-card p {
    color: #666;
    line-height: 1.7;
}

.stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.stat-card {
    text-align: center;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 1rem;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: scale(1.05);
    background: rgba(255, 255, 255, 0.15);
}

.stat-card svg {
    color: #666;
    margin-bottom: 1rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #666;
    font-weight: 500;
    font-size: 0.875rem;
}

.tech-preview {
    text-align: center;
}

.tech-preview h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.tech-tag {
    padding: 0.75rem 1.5rem;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.tech-tag:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* Experience Section */
.timeline {
    position: relative;
    max-width: 64rem;
    margin: 0 auto;
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
}

.timeline-item:not(:last-child)::before {
    content: '';
    position: absolute;
    left: 1.5rem;
    top: 4rem;
    width: 2px;
    height: calc(100% + 1rem);
    background: linear-gradient(to bottom, #ddd, transparent);
}

.timeline-dot {
    position: absolute;
    left: 1rem;
    top: 2rem;
    width: 1rem;
    height: 1rem;
    background: #1a1a1a;
    border-radius: 50%;
    border: 4px solid white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.timeline-content {
    margin-left: 4rem;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 1rem;
    padding: 2rem;
    transition: all 0.3s ease;
}

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

.experience-header {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1rem;
}

.experience-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    transition: color 0.3s ease;
}

.timeline-content:hover .experience-header h3 {
    color: #1a1a1a;
}

.experience-header h4 {
    font-size: 1.25rem;
    color: #666;
    font-weight: 500;
}

.experience-meta {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.875rem;
    color: #666;
}

.timeline-content p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.timeline-content ul {
    list-style: none;
    padding: 0;
}

.timeline-content li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 0.5rem;
    color: #666;
}

.timeline-content li::before {
    content: '';
    width: 0.5rem;
    height: 0.5rem;
    background: #999;
    border-radius: 50%;
    margin-right: 0.75rem;
    margin-top: 0.5rem;
    flex-shrink: 0;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 72rem;
    margin: 0 auto 4rem;
}

.skill-category {
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 1rem;
    padding: 2rem;
    transition: all 0.3s ease;
}

.skill-category:hover {
    background: rgba(255, 255, 255, 0.15);
}

.skill-category h3 {
    font-size: 1.5rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 2rem;
}

.skill-item {
    margin-bottom: 1.5rem;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.skill-info span:first-child {
    color: #666;
}

.skill-info span:last-child {
    color: #999;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
}

.skill-bar {
    width: 100%;
    height: 0.5rem;
    background: #e0e0e0;
    border-radius: 0.25rem;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, #666, #1a1a1a);
    border-radius: 0.25rem;
    transition: width 1s ease-out;
}

.additional-skills {
    text-align: center;
}

.additional-skills h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

.additional-skills-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    max-width: 64rem;
    margin: 0 auto;
}

.skill-tag {
    padding: 0.75rem 1.5rem;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.project-card {
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.project-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: scale(1.02);
}

.project-image {
    position: relative;
    overflow: hidden;
    height: 12rem;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    transition: color 0.3s ease;
}

.project-card:hover .project-content h3 {
    color: #1a1a1a;
}

.project-content p {
    color: #666;
    font-size: 0.875rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

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

.project-tags span {
    padding: 0.25rem 0.75rem;
    background: rgba(0, 0, 0, 0.05);
    color: #666;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 500;
}

.project-links {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.project-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #666;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.project-link:hover {
    color: #1a1a1a;
}

.projects-cta {
    text-align: center;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    max-width: 72rem;
    margin: 0 auto;
}

.contact-info .glass-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.contact-info .glass-card p {
    color: #666;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 0.75rem;
    color: #666;
}

.contact-label {
    font-size: 0.875rem;
    color: #999;
    font-weight: 500;
}

.contact-value {
    font-weight: 500;
    color: #1a1a1a;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-value:hover {
    color: #666;
}

.contact-form-container .glass-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: #666;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 0.5rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #666;
    box-shadow: 0 0 0 2px rgba(102, 102, 102, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    padding: 3rem 0;
    background: #1a1a1a;
    color: white;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.footer-info {
    text-align: center;
}

.footer-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.footer-info p {
    color: #999;
}

.footer-social {
    display: flex;
    gap: 1.5rem;
}

.footer-social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-social-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.scroll-to-top {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.scroll-to-top:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    color: #999;
    font-size: 0.875rem;
}

/* Toast Notification */
.toast {
    position: fixed;
    top: 2rem;
    right: 2rem;
    background: white;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 0.75rem;
    padding: 1rem 1.5rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    max-width: 24rem;
    opacity: 0;
    transform: translateY(-100px);
    transition: all 0.3s ease;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.toast-description {
    font-size: 0.875rem;
    color: #666;
}

.toast-close {
    background: none;
    border: none;
    cursor: pointer;
    color: #999;
    padding: 0;
    transition: color 0.3s ease;
}

.toast-close:hover {
    color: #666;
}

/* Responsive Design */
@media (min-width: 640px) {
    .hero-buttons {
        flex-direction: row;
    }
    
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
    
    .stats {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .mobile-menu-btn {
        display: none;
    }
    
    .nav-links {
        display: flex;
    }
    
    .about-content {
        grid-template-columns: 2fr 1fr;
        align-items: start;
    }
    
    .about-cards {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .experience-header {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-start;
    }
    
    .experience-meta {
        text-align: right;
    }
    
    .contact-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
    }
}

@media (min-width: 1024px) {
    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 767px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
}