:root {
    /* Color Palette - Premium Dark Theme */
    --bg-color: #0f172a;
    --bg-secondary: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent-1: #3b82f6;
    --accent-2: #8b5cf6;
    --accent-3: #ec4899;
    
    /* Typography */
    --font-main: 'Inter', sans-serif;
    
    /* Layout */
    --container-width: 1200px;
    --section-padding: 100px 0;
    
    /* Effects */
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow-soft: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --transition-fast: 0.2s ease;
    --transition-normal: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    cursor: none; /* Custom cursor */
}

/* Custom Cursor */
.cursor-dot,
.cursor-outline {
    position: fixed;
    top: 0;
    left: 0;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    z-index: 9999;
    pointer-events: none;
}

.cursor-dot {
    width: 8px;
    height: 8px;
    background-color: var(--text-main);
}

.cursor-outline {
    width: 40px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    transition: width 0.2s, height 0.2s, background-color 0.2s;
}

/* Typography Utilities */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-1), var(--accent-2), var(--accent-3));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Layout Utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: var(--section-padding);
}

.section-title {
    font-size: 3rem;
    margin-bottom: 3rem;
    text-align: center;
}

/* Glassmorphism Card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 32px;
    box-shadow: var(--shadow-soft);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.7);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    color: #fff;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-primary.lg, .btn-secondary.lg {
    padding: 16px 36px;
    font-size: 1.1rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: background-color var(--transition-fast), padding var(--transition-fast);
    padding: 24px 0;
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    padding: 16px 0;
    border-bottom: 1px solid var(--glass-border);
}

.nav-content {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.logo .highlight {
    color: var(--accent-1);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-muted);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-links a:not(.btn-primary):hover,
.nav-links a.active:not(.btn-primary) {
    color: var(--text-main);
}

.nav-links a:not(.btn-primary)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0%;
    height: 2px;
    background: var(--accent-1);
    transition: width var(--transition-fast);
}

.nav-links a:not(.btn-primary):hover::after,
.nav-links a.active:not(.btn-primary):::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.hamburger span {
    width: 30px;
    height: 2px;
    background: var(--text-main);
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 100px;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--accent-1);
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.hero .title {
    font-size: clamp(3rem, 8vw, 6rem);
    letter-spacing: -2px;
    margin-bottom: 1.5rem;
}

.hero .description {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-group {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* Background Shapes */
.hero-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
    pointer-events: none;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 10s infinite alternate ease-in-out;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--accent-1);
    top: -100px;
    left: -100px;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: var(--accent-2);
    bottom: 100px;
    right: -50px;
    animation-delay: -5s;
}

.shape-3 {
    width: 250px;
    height: 250px;
    background: var(--accent-3);
    top: 40%;
    left: 40%;
    opacity: 0.3;
    animation-duration: 15s;
}

@keyframes float {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(50px, 50px) rotate(45deg); }
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

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

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 3rem;
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.stat-item p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
}

.about-image {
    aspect-ratio: 4/5;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(139,92,246,0.1));
}

.image-placeholder {
    color: var(--text-muted);
    font-weight: 500;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.skill-card {
    text-align: center;
}

.skill-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.skill-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.skill-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.project-card {
    padding: 0;
    overflow: hidden;
    position: relative; /* For glow effect */
}

/* Hover glow effect */
.project-card::before {
    content: '';
    position: absolute;
    top: -2px; left: -2px; right: -2px; bottom: -2px;
    background: linear-gradient(135deg, var(--accent-1), var(--accent-2), var(--accent-3));
    z-index: -1;
    border-radius: 22px; /* Slightly larger than card */
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.project-card:hover::before {
    opacity: 1;
    filter: blur(15px);
}

.project-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    background: #2a3b5c; /* Fallback */
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-content {
    padding: 32px;
    background: var(--glass-bg); /* ensure content has background to overlay glow */
    height: 100%;
}

.project-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.project-content p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 2rem;
}

.project-tags span {
    background: rgba(255, 255, 255, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-main);
}

.btn-link {
    color: var(--accent-1);
    font-weight: 600;
    position: relative;
    display: inline-block;
}

.btn-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0%;
    height: 2px;
    background: var(--accent-1);
    transition: width var(--transition-fast);
}

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

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

.contact-desc {
    color: var(--text-muted);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
    text-align: left;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px 20px;
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-1);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* Footer */
footer {
    border-top: 1px solid var(--glass-border);
    padding: 48px 0;
    margin-top: 64px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.social-links {
    display: flex;
    gap: 24px;
}

.social-links a {
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.social-links a:hover {
    color: var(--accent-1);
}

.copyright {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Animations - Fade Up */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        max-width: 500px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .hero .title {
        font-size: 3rem;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: var(--glass-bg);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        transition: right 0.4s ease;
        border-left: 1px solid var(--glass-border);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .hamburger {
        display: flex;
        z-index: 1001;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    /* Disable custom cursor on mobile */
    .cursor-dot, .cursor-outline {
        display: none;
    }
    body {
        cursor: auto;
    }
}

@media (max-width: 480px) {
    .stats {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .cta-group {
        flex-direction: column;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
}