:root {
    --primary-color: #FFD700;
    --secondary-color: #FFC107;
    --accent-color: #FFEB3B;
    --text-primary: #000000;
    --text-secondary: #333333;
    --text-light: #666666;
    --bg-light: #1a1a1a;
    --bg-white: #000000;
    --bg-card: #0a0a0a;
    --border-color: #FFD700;
    --gradient: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    --gradient-2: linear-gradient(135deg, #FFC107 0%, #FF8F00 100%);
    --shadow: 0 10px 25px -5px rgba(255, 215, 0, 0.3), 0 10px 10px -5px rgba(255, 215, 0, 0.1);
    --shadow-hover: 0 20px 35px -5px rgba(255, 215, 0, 0.4), 0 10px 10px -5px rgba(255, 215, 0, 0.2);
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #ffffff;
    background-color: var(--bg-light);
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

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

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

.nav-links a:hover {
    color: var(--primary-color);
}

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

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

.mobile-menu {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: #000000;
    color: var(--primary-color);
    position: relative;
    overflow: hidden;
    border-bottom: 2px solid var(--primary-color);
    padding-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(90deg, rgba(255,215,0,0.03) 1px, transparent 1px),
        linear-gradient(rgba(255,215,0,0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.4;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255,215,0,0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(255,215,0,0.08) 0%, transparent 50%),
                radial-gradient(circle at 40% 20%, rgba(255,215,0,0.06) 0%, transparent 50%);
    pointer-events: none;
}

#particles-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease-out;
    color: var(--primary-color);
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 2rem;
    color: #ffffff;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-description {
    font-size: 1.1rem;
    max-width: 600px;
    margin-bottom: 3rem;
    color: #cccccc;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    display: block;
    color: var(--primary-color);
    text-shadow: 0 0 15px rgba(255, 215, 0, 0.4);
}

.stat-label {
    font-size: 0.9rem;
    color: #ffffff;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    animation: fadeInUp 1s ease-out 0.8s both;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary-color);
    color: #000000;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    background: var(--secondary-color);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: #000000;
}

/* Section Styles */
.section {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.section-subtitle {
    font-size: 1.1rem;
    color: #cccccc;
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about {
    background: #0a0a0a;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.about-text p {
    margin-bottom: 1.5rem;
    color: #cccccc;
}

.contact-info {
    display: grid;
    gap: 1rem;
    margin-top: 2rem;
}

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

.contact-item i {
    color: var(--primary-color);
    width: 20px;
}

.about-image {
    height: 400px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border: 3px solid var(--primary-color);
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}

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

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

.timeline::before {
    content: '';
    position: absolute;
    left: 1rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    background: #0a0a0a;
    border-radius: 15px;
    padding: 2rem;
    margin-left: 2rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #333333;
}

.timeline-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -3rem;
    top: 2rem;
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    background: var(--primary-color);
    border: 3px solid #000000;
    box-shadow: 0 0 10px var(--primary-color);
}

.job-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.job-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 0.5rem;
}

.job-company {
    font-size: 1.1rem;
    color: var(--primary-color);
    font-weight: 500;
}

.job-date {
    background: var(--primary-color);
    color: #000000;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.job-description ul {
    list-style: none;
    padding-left: 0;
}

.job-description li {
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    position: relative;
    color: #cccccc;
}

.job-description li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Skills Section */
.skills {
    background: #0a0a0a;
}

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

.skill-category {
    background: #000000;
    padding: 2rem;
    border-radius: 15px;
    border-left: 4px solid var(--primary-color);
    transition: transform 0.3s ease;
    border: 1px solid #333333;
}

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

.skill-category h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.skill-tag {
    background: #1a1a1a;
    color: #ffffff;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid var(--primary-color);
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background: var(--primary-color);
    color: #000000;
    border-color: var(--primary-color);
    box-shadow: 0 0 10px var(--primary-color);
}

/* Projects Section */
.projects {
    background: var(--bg-light);
}

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

.project-card {
    background: #0a0a0a;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #333333;
}

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

.project-header {
    background: var(--gradient);
    color: #000000;
    padding: 1.5rem;
}

.project-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.project-tech {
    font-size: 0.9rem;
    opacity: 0.9;
}

.project-content {
    padding: 1.5rem;
}

.project-description {
    color: #cccccc;
    margin-bottom: 1.5rem;
}

.project-highlights {
    list-style: none;
    margin-bottom: 1.5rem;
}

.project-highlights li {
    margin-bottom: 0.5rem;
    padding-left: 1rem;
    position: relative;
    font-size: 0.9rem;
    color: #cccccc;
}

.project-highlights li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

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

.project-link:hover {
    color: var(--secondary-color);
    transform: translateX(3px);
}

/* Education Section */
.education {
    background: #0a0a0a;
}

.education-grid {
    display: grid;
    gap: 2rem;
}

.education-item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 2rem;
    align-items: center;
    background: #000000;
    padding: 2rem;
    border-radius: 15px;
    border-left: 4px solid var(--primary-color);
    border: 1px solid #333333;
}

.degree-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.degree-details h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #ffffff;
}

.degree-school {
    color: var(--primary-color);
    font-weight: 500;
}

.degree-year {
    background: var(--primary-color);
    color: #000000;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
}

/* Footer */
.footer {
    background: #000000;
    color: var(--primary-color);
    padding: 3rem 2rem 2rem;
    text-align: center;
    border-top: 2px solid var(--primary-color);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 50%;
    color: white;
    text-decoration: none;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.social-link:hover {
    transform: translateY(-3px) scale(1.1);
    background: var(--accent-color);
}

.footer-text {
    opacity: 0.8;
    margin-bottom: 1rem;
}

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

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu {
        display: block;
    }

    .hero {
        padding-top: 100px;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .job-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .timeline-item {
        margin-left: 1rem;
    }

    .timeline::before {
        left: 0.5rem;
    }

    .timeline-item::before {
        left: -2.5rem;
    }

    .section {
        padding: 3rem 1rem;
    }

    .education-item {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1rem;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading animation */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000000;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid #333333;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Button effects */
.btn {
    position: relative;
    overflow: hidden;
}

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

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