:root {
    --background: #000000;
    --text: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --border: rgba(255, 255, 255, 0.1);
    --gradient-1: linear-gradient(90deg, #007CF0, #00DFD8);
    --gradient-2: linear-gradient(90deg, #7928CA, #FF0080);
    --gradient-3: linear-gradient(90deg, #FF4D4D, #F9CB28);
    --glass: rgba(255, 255, 255, 0.05);
    --blur: blur(12px);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --section-spacing: 4rem;
    --content-spacing: 2rem;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    cursor: none;
}

html {
    scroll-behavior: smooth;
}

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

/* Gradient Background */
.gradient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -2;
    background: var(--background);
    overflow: hidden;
}

.gradient-lines {
    position: absolute;
    width: 200%;
    height: 200%;
    background: repeating-linear-gradient(
        transparent 0%,
        transparent 98%,
        rgba(255, 255, 255, 0.05) 99%,
        transparent 100%
    );
    background-size: 8px 8px;
    transform: rotate(45deg);
    animation: moveLines 20s linear infinite;
}

.gradient-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        circle at calc(var(--mouse-x, 0.5) * 100%) calc(var(--mouse-y, 0.5) * 100%),
        rgba(0, 124, 240, 0.1),
        rgba(121, 40, 202, 0.1),
        transparent 50%
    );
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: var(--blur);
    background: rgba(0, 0, 0, 0.8);
    transition: transform 0.3s ease;
}

.navbar.scroll-down {
    transform: translateY(-100%);
}

.navbar.scroll-up {
    transform: translateY(0);
}

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

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

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.9rem;
    font-weight: 500;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 6rem 0;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.profile-image {
    margin-bottom: 2rem;
}

.profile-image img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border);
    transition: var(--transition);
}

.profile-image img:hover {
    transform: scale(1.05);
    border-color: rgba(255, 255, 255, 0.2);
}

.gradient-text {
    font-size: 4rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Contact & Social */
.contact-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    margin: var(--content-spacing) 0;
    padding: 1.5rem;
    background: var(--glass);
    backdrop-filter: var(--blur);
    border-radius: 12px;
    border: 1px solid var(--border);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
}

.contact-item i {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.contact-item:hover {
    color: var(--text);
    transform: translateY(-2px);
}

.contact-item:hover i {
    color: var(--text);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    background: var(--glass);
    color: var(--text);
    text-decoration: none;
    transition: var(--transition);
    backdrop-filter: var(--blur);
}

.social-link:hover {
    transform: translateY(-2px);
    background: var(--gradient-1);
}

/* Sections */
section {
    padding: var(--section-spacing) 0;
    position: relative;
    border-bottom: 1px solid var(--border);
}

section:last-child {
    border-bottom: none;
}

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

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--content-spacing);
    background: var(--gradient-1);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

/* About Section */
.about-section {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--section-spacing);
    padding: var(--content-spacing);
    background: var(--glass);
    backdrop-filter: var(--blur);
    border-radius: 12px;
    border: 1px solid var(--border);
}

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

/* Experience Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.experience-item {
    background: var(--glass);
    backdrop-filter: var(--blur);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border);
    transition: var(--transition);
    opacity: 0;
    transform: translateY(20px);
}

.experience-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.experience-item:hover {
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
}

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

.experience-header h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.company {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.duration {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Skills Grid */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
}

.skills-grid.visible {
    opacity: 1;
    transform: translateY(0);
}

.skill-category h3 {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

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

.skill-tag {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    background: var(--glass);
    backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.skill-tag:hover {
    background: var(--gradient-2);
    transform: translateY(-2px);
}

/* Custom Cursor */
.cursor {
    width: 12px;
    height: 12px;
    background: var(--text);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    mix-blend-mode: difference;
    transition: transform 0.2s, width 0.2s, height 0.2s;
}

.cursor-follower {
    display: none;
}

/* Footer */
footer {
    padding: var(--content-spacing) 0;
    text-align: center;
    background: var(--glass);
    backdrop-filter: var(--blur);
    border-top: 1px solid var(--border);
}

.footer-content {
    max-width: 600px;
    margin: 0 auto;
    color: var(--text-secondary);
}

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 40px;
    height: 40px;
    background: var(--glass);
    backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text);
    text-decoration: none;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    background: var(--gradient-1);
    border-color: transparent;
}

/* Animations */
@keyframes moveLines {
    0% {
        transform: translateX(-50%) rotate(45deg);
    }
    100% {
        transform: translateX(0) rotate(45deg);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .gradient-text {
        font-size: 2.5rem;
    }

    .nav-links {
        display: none;
    }

    .cursor, .cursor-follower {
        display: none;
    }

    section {
        padding: 4rem 0;
    }

    .container {
        padding: 0 1rem;
    }
}

/* Reveal Animation */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
}

.reveal-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}