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

:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --bg-primary: #0a0a0a;
    --bg-secondary: #18181b;
    --bg-card: rgba(24, 24, 27, 0.8);
    --border-color: rgba(255, 255, 255, 0.1);
    --gradient-1: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-2: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: width 0.3s ease;
}

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

.nav-resume-btn {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border: 1px solid var(--primary-color);
    border-radius: 6px;
    transition: all 0.3s ease;
    white-space: nowrap;
    background: rgba(99, 102, 241, 0.1);
}

.nav-resume-btn:hover {
    color: var(--text-primary);
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.2);
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.3);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 8rem 2rem 4rem;
    z-index: 1;
}

.hero-content {
    max-width: 900px;
    text-align: center;
    animation: fadeInUp 1s ease;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid var(--primary-color);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
    animation: fadeInDown 0.8s ease;
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.greeting {
    font-size: 1.5rem;
    color: var(--text-secondary);
    font-weight: 400;
    animation: fadeInUp 1s ease 0.2s both;
}

.name {
    font-size: 4.5rem;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    animation: fadeInUp 1s ease 0.4s both;
    position: relative;
}

.name.typing::after {
    content: '|';
    animation: blink 1s infinite;
    color: var(--primary-color);
    margin-left: 5px;
}

.title-rotating {
    font-size: 1.8rem;
    color: var(--text-secondary);
    font-weight: 300;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeInUp 1s ease 0.6s both;
}

.title-text {
    position: absolute;
    opacity: 0;
    animation: rotateText 9s infinite;
}

.title-text:nth-child(1) {
    animation-delay: 0s;
}

.title-text:nth-child(2) {
    animation-delay: 3s;
}

.title-text:nth-child(3) {
    animation-delay: 6s;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    line-height: 1.8;
    animation: fadeInUp 1s ease 0.8s both;
}

.hero-description .highlight {
    color: var(--text-primary);
    font-weight: 600;
    position: relative;
}

.hero-description .highlight::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-1);
    opacity: 0.5;
    z-index: -1;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease 1s both;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.5rem;
}

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

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

.btn {
    padding: 0.875rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    display: inline-block;
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-1);
    color: var(--text-primary);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--text-primary);
}

.btn-secondary:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--text-primary);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    animation: bounce 2s infinite;
}

.scroll-line {
    width: 2px;
    height: 30px;
    background: var(--gradient-1);
    border-radius: 2px;
}

/* Sections */
section {
    position: relative;
    z-index: 1;
    padding: 6rem 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 3rem;
    text-align: center;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* About Section */
.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.about-text .lead {
    font-size: 1.3rem;
    color: var(--text-primary);
    font-weight: 500;
}


/* Reference Section */
.reference-card {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.reference-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.15);
}

.reference-text h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.reference-text p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.reference-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.reference-link:hover {
    color: var(--secondary-color);
    gap: 0.75rem;
}

/* Experience Section */
.experience {
    background: var(--bg-secondary);
}

.timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    width: 50%;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.timeline-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: 3rem;
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: 3rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary-color);
    top: 2rem;
    box-shadow: 0 0 0 4px var(--bg-secondary), 0 0 0 6px var(--primary-color);
}

.timeline-item:nth-child(odd)::before {
    right: -8px;
}

.timeline-item:nth-child(even)::before {
    left: -8px;
}

.timeline-header {
    margin-bottom: 1rem;
}

.timeline-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.timeline-company {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.timeline-date {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.timeline-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

.timeline-description ul {
    margin-top: 1rem;
    padding-left: 1.5rem;
}

.timeline-description li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.project-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

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

.tech-tag {
    padding: 0.25rem 0.75rem;
    background: rgba(99, 102, 241, 0.2);
    border: 1px solid var(--primary-color);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-primary);
}

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

.project-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.project-link:hover {
    color: var(--secondary-color);
}

/* Skills Section */
.skills {
    background: var(--bg-secondary);
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.skill-category {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.skill-category:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.skill-category-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    text-align: left;
    position: relative;
    padding-bottom: 0.75rem;
}

.skill-category-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--gradient-1);
    border-radius: 2px;
}

.skill-badges-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 20px;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Contact Section */
.contact-description {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.contact-link:hover {
    transform: translateY(-3px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    padding: 2rem 0;
    text-align: center;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    position: relative;
    z-index: 1;
}

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

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

@keyframes blink {
    0%, 50% {
        opacity: 1;
    }
    51%, 100% {
        opacity: 0;
    }
}

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

@keyframes rotateText {
    0%, 25% {
        opacity: 0;
        transform: translateY(20px);
    }
    30%, 70% {
        opacity: 1;
        transform: translateY(0);
    }
    75%, 100% {
        opacity: 0;
        transform: translateY(-20px);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--bg-secondary);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
        border-top: 1px solid var(--border-color);
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .nav-resume-btn {
        padding: 0.5rem 0.875rem;
        font-size: 0.85rem;
    }

    .name {
        font-size: 2.5rem;
    }

    .hero-badge {
        font-size: 0.75rem;
        padding: 0.4rem 1rem;
    }

    .title-rotating {
        font-size: 1.3rem;
        height: 2rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 2rem;
    }

    .stat-number {
        font-size: 2rem;
    }

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

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

    .timeline-item {
        width: 100%;
        left: 0 !important;
        padding-left: 3rem !important;
        padding-right: 2rem !important;
    }

    .timeline-item::before {
        left: 12px !important;
        right: auto !important;
    }

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

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

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }

}