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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #e5e7eb;
    background: #0a0a0a;
}

/* Scroll Progress Bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, #10b981, #06b6d4);
    z-index: 9999;
    transition: width 0.1s ease-out;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(16, 185, 129, 0.1);
    z-index: 1000;
    border-bottom: 1px solid rgba(16, 185, 129, 0.1);
}

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

.nav-logo {
    font-size: 1.5rem;
    font-weight: bold;
    background: linear-gradient(90deg, #10b981, #06b6d4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}

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

.nav-link {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #10b981, #06b6d4);
    transition: width 0.3s;
}

.nav-link:hover {
    color: #e5e7eb;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #0a0a0a;
    color: white;
    text-align: center;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

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

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease-out;
}

.highlight {
    background: linear-gradient(90deg, #10b981, #06b6d4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease infinite;
}

@keyframes gradientShift {
    0%, 100% {
        filter: hue-rotate(0deg);
    }
    50% {
        filter: hue-rotate(15deg);
    }
}

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

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    opacity: 0.9;
    color: #9ca3af;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.8;
    color: #6b7280;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    background: linear-gradient(90deg, #10b981, #06b6d4);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: bold;
    transition: transform 0.3s, box-shadow 0.3s;
    animation: fadeInUp 1s ease-out 0.6s both;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.4);
}

/* Section Styles */
.section {
    background: #0a0a0a;
    padding: 5rem 2rem;
}

.section-alt {
    background: #111111;
}

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

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(90deg, #10b981, #06b6d4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

/* About Section */
.about-content {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.8;
    color: #9ca3af;
}

.about-content p {
    margin-bottom: 1.5rem;
}

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

.project-card {
    background: #1a1a1a;
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(16, 185, 129, 0.1);
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(16, 185, 129, 0.15), transparent 50%);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.project-card:hover::before {
    opacity: 1;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(16, 185, 129, 0.2);
    border-color: rgba(16, 185, 129, 0.4);
}

.project-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(90deg, #10b981, #06b6d4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.project-description {
    margin-bottom: 1.5rem;
    color: #9ca3af;
    line-height: 1.6;
}

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

.tag {
    padding: 0.4rem 0.9rem;
    background: rgba(16, 185, 129, 0.1);
    color: #6ee7b7;
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 20px;
    font-size: 0.85rem;
    transition: all 0.3s;
}

.tag:hover {
    background: rgba(16, 185, 129, 0.2);
    border-color: rgba(16, 185, 129, 0.4);
    transform: translateY(-2px);
}

/* Experience Section */
.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, #10b981, #06b6d4);
}

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

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.5rem;
    top: 0;
    width: 12px;
    height: 12px;
    background: #10b981;
    border-radius: 50%;
    border: 3px solid #0a0a0a;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

.timeline-date {
    font-weight: bold;
    background: linear-gradient(90deg, #10b981, #06b6d4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.timeline-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.3rem;
    color: #e5e7eb;
}

.timeline-content h4 {
    color: #9ca3af;
    margin-bottom: 0.5rem;
    font-weight: normal;
}

.timeline-content p {
    color: #6b7280;
    line-height: 1.6;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: #1a1a1a;
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(16, 185, 129, 0.1);
    transition: transform 0.3s, border-color 0.3s;
}

.skill-category:hover {
    transform: translateY(-5px);
    border-color: rgba(16, 185, 129, 0.3);
}

.skill-category h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(90deg, #10b981, #06b6d4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.skill-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(16, 185, 129, 0.1);
    color: #9ca3af;
    transition: color 0.3s, padding-left 0.3s;
}

.skill-list li:hover {
    color: #6ee7b7;
    padding-left: 0.5rem;
}

.skill-list li:last-child {
    border-bottom: none;
}

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

.contact-text {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #9ca3af;
}

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

.contact-link {
    padding: 1rem 2rem;
    background: linear-gradient(90deg, #10b981, #06b6d4);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
}

.contact-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.contact-link:hover::before {
    left: 100%;
}

.contact-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.4);
}

/* Footer */
.footer {
    background: #0a0a0a;
    color: #6b7280;
    text-align: center;
    padding: 2rem;
    border-top: 1px solid rgba(16, 185, 129, 0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        gap: 1rem;
        font-size: 0.9rem;
    }

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

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

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

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

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

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

@media (max-width: 480px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .section {
        padding: 3rem 1rem;
    }
}