:root {  
    --bg-color: #0d0d12;
    --surface-color: rgba(255, 255, 255, 0.03);
    --border-color: rgba(255, 255, 255, 0.1);
    --primary: #7c3aed;
    --primary-glow: rgba(124, 58, 237, 0.5);
    --secondary: #06b6d4;
    --secondary-glow: rgba(6, 182, 212, 0.5);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--primary) var(--bg-color);
}

/* Custom Scrollbar for Webkit */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary);
}

body {
    background-color: var(--bg-color);
    background-image: radial-gradient(circle at 15% 50%, rgba(124, 58, 237, 0.03), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(6, 182, 212, 0.03), transparent 25%);
    background-attachment: fixed;
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    letter-spacing: 0.3px;
}

#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -2;
    pointer-events: none;
}

/* Background Glowing Shapes */
.bg-shape {
    position: absolute;
    filter: blur(100px);
    z-index: -1;
    border-radius: 50%;
    opacity: 0.5;
}

.shape1 {
    top: -100px;
    left: -100px;
    width: 400px;
    height: 400px;
    background: var(--primary-glow);
}

.shape2 {
    top: 300px;
    right: -100px;
    width: 300px;
    height: 300px;
    background: var(--secondary-glow);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 20px 0;
    background: rgba(13, 13, 18, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    text-decoration: none;
}

.logo span {
    color: var(--primary);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
    text-shadow: 0 0 10px var(--primary-glow);
}

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

.hamburger span {
    width: 25px;
    height: 2px;
    background-color: var(--text-main);
    transition: var(--transition);
}

/* Base Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 600;
    text-decoration: none;
    font-family: var(--font-heading);
    transition: var(--transition);
    cursor: pointer;
}

.primary-btn {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    box-shadow: 0 4px 15px var(--primary-glow);
    border: none;
}

.primary-btn:hover {
    box-shadow: 0 6px 20px rgba(124, 58, 237, 0.8);
    transform: translateY(-2px);
}

.secondary-btn {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(5px);
}

.secondary-btn:hover {
    background: var(--surface-color);
    border-color: var(--primary);
    color: var(--primary);
}

/* Sections */
section {
    padding: 100px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
    padding-top: 150px;
}

.hero-content {
    max-width: 600px;
}

.hero-image {
    flex-shrink: 0;
    width: 350px;
    height: 350px;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    filter: blur(20px);
    opacity: 0.6;
    animation: pulse 4s ease-in-out infinite;
    z-index: 0;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 0.6;
    }

    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

.image-wrapper {
    position: relative;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid rgba(255, 255, 255, 0.1);
    z-index: 1;
    background: var(--surface-color);
}

.image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.greeting {
    color: var(--secondary);
    font-family: var(--font-heading);
    font-weight: 500;
    letter-spacing: 2px;
    margin-bottom: 10px;
}

.name {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 5vw, 5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.dynamic-roles {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 600;
    margin-bottom: 30px;
    min-height: 48px;
}

.typing-text {
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--primary));
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: none;
    animation: gradientShift 3s linear infinite;
}

@keyframes gradientShift {
    to {
        background-position: 200% center;
    }
}

.cursor {
    display: inline-block;
    width: 3px;
    background-color: var(--primary);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    50% {
        opacity: 0;
    }
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin-bottom: 40px;
}

.hero-cta {
    display: flex;
    gap: 20px;
}

/* Global Section Titles */
.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 50px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    width: 60%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), transparent);
    bottom: -10px;
    left: 0;
    border-radius: 2px;
}

/* Glassmorphism Cards */
.glass-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, transform 0.15s ease-out;
    transform-style: preserve-3d;
}

.glass-card:hover {
    border-color: rgba(124, 58, 237, 0.4);
    box-shadow: 0 15px 40px rgba(124, 58, 237, 0.15), inset 0 0 20px rgba(255, 255, 255, 0.05);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        /* simple mobile menu later if needed */
    }

    .hamburger {
        display: flex;
    }

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

    .hero {
        padding-top: 100px;
        text-align: left;
    }
}

/* Animations */
.fade-in-section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    will-change: opacity, visibility;
}

.fade-in-section.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* About Section */
.about-card {
    display: flex;
    flex-direction: column;
    gap: 20px;
    font-size: 1.05rem;
}

.about-highlights {
    display: flex;
    justify-content: space-around;
    margin-top: 20px;
    flex-wrap: wrap;
    gap: 20px;
}

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

.highlight-item h3 {
    font-size: 2.5rem;
    color: var(--primary);
    font-family: var(--font-heading);
    text-shadow: 0 0 10px var(--primary-glow);
}

.highlight-item p {
    color: var(--text-muted);
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.skill-category h3 {
    margin-bottom: 20px;
    color: var(--secondary);
    font-family: var(--font-heading);
    font-size: 1.2rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tags span {
    background: rgba(124, 58, 237, 0.1);
    border: 1px solid var(--primary-glow);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-main);
    transition: var(--transition);
}

.skill-tags span:hover {
    background: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
    transform: translateY(-2px);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.project-card {
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.project-date {
    font-size: 0.85rem;
    color: var(--secondary);
    margin-bottom: 10px;
    display: block;
    font-weight: 600;
}

.project-card h3 {
    font-family: var(--font-heading);
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.project-card p {
    color: var(--text-muted);
    margin-bottom: 20px;
    flex-grow: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
}

.project-tech span {
    font-size: 0.8rem;
    color: var(--secondary);
    background: rgba(6, 182, 212, 0.1);
    padding: 4px 10px;
    border-radius: 12px;
}

.project-glow {
    position: absolute;
    width: 100px;
    height: 100px;
    background: var(--primary-glow);
    filter: blur(50px);
    border-radius: 50%;
    bottom: -50px;
    right: -50px;
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
}

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

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

.timeline-container::before {
    content: '';
    position: absolute;
    width: 2px;
    background: var(--border-color);
    top: 40px;
    bottom: 40px;
    left: 20px;
}

.timeline-item {
    margin-bottom: 30px;
    padding-left: 50px;
    position: relative;
}

.timeline-dot {
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary);
    left: 13px;
    top: 30px;
    box-shadow: 0 0 10px var(--primary-glow);
}

.timeline-item h4 {
    color: #fff;
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.timeline-item h5 {
    color: var(--secondary);
    margin-bottom: 10px;
    font-weight: 500;
}

.timeline-item p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 6px;
}

/* Contact */
.contact-card {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-info {
    margin: 30px 0;
}

.contact-info p {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.contact-info strong {
    color: var(--primary);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* Footer */
footer {
    text-align: center;
    padding: 30px;
    border-top: 1px solid var(--border-color);
    margin-top: 50px;
    color: var(--text-muted);
}