@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap");

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Inter", sans-serif;
}

:root {
    --bg-deep: #020617;
    --bg-gradient: linear-gradient(135deg, #0f172a 0%, #020617 100%);
    --bg-glass: rgba(30, 41, 59, 0.4);
    --border-glass: rgba(255, 255, 255, 0.1);
    
    --primary: #8b5cf6;
    --secondary: #06b6d4;
    --accent: #f43f5e;
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    
    --glow-primary: rgba(139, 92, 246, 0.5);
    --glow-secondary: rgba(6, 182, 212, 0.5);
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    background: var(--bg-deep);
    background-image: var(--bg-gradient);
    color: var(--text-main);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Background Ambient Glows */
.ambient-glow-1, .ambient-glow-2 {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -1;
    pointer-events: none;
    opacity: 0.6;
}

.ambient-glow-1 {
    top: -10%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: var(--glow-primary);
}

.ambient-glow-2 {
    bottom: -10%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: var(--glow-secondary);
}

/* Global Layout Utilities */
section {
    padding: 100px 5%;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    text-align: center;
    background: linear-gradient(to right, var(--text-main), var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.glass-card {
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255,255,255,0.2);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

/* Typography & Links */
a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--secondary);
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 20px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(2, 6, 23, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-glass);
}

.logo {
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: 1px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

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

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background: var(--primary);
    transition: width 0.3s ease;
}

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

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

.hero-content {
    max-width: 800px;
}

.hero-greeting {
    color: var(--secondary);
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    display: inline-block;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero h1 span {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-sub {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.btn-group {
    display: flex;
    gap: 1.5rem;
}

.btn {
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    color: #fff;
    border: none;
    box-shadow: 0 4px 15px var(--glow-primary);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px var(--glow-secondary);
    transform: translateY(-2px);
    color: #fff;
}

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

.btn-secondary:hover {
    background: var(--bg-glass);
    border-color: var(--text-main);
    transform: translateY(-2px);
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

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

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

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

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

.skill-category h3 {
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
    color: var(--secondary);
}

.skill-list {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.skill-pill {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-main);
    transition: all 0.3s;
}

.skill-pill:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--primary);
    transform: translateY(-2px);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.project-card {
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
}

.project-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-bottom: 1px solid var(--border-glass);
    transition: transform 0.5s ease;
}

.project-card:hover .project-img {
    transform: scale(1.05);
}

.project-info {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-context {
    font-size: 0.8rem;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.project-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.project-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

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

.tech-tag {
    font-size: 0.8rem;
    color: var(--primary);
    background: rgba(139, 92, 246, 0.1);
    padding: 4px 10px;
    border-radius: 4px;
}

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

.timeline-item {
    padding: 2rem;
    border-left: 2px solid var(--primary);
    margin-left: 20px;
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -9px;
    top: 2.5rem;
    width: 16px;
    height: 16px;
    background: var(--bg-deep);
    border: 2px solid var(--secondary);
    border-radius: 50%;
}

.timeline-role {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-main);
}

.timeline-org {
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 1rem;
}

/* Contact */
.contact-section {
    text-align: center;
    max-width: 600px;
}

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

.contact-link {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-main);
    font-size: 1.1rem;
    padding: 10px 20px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 30px;
    transition: all 0.3s;
}

.contact-link:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    transform: translateY(-3px);
}

footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--border-glass);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .about-grid { grid-template-columns: 1fr; gap: 2rem; }
    .nav-links { display: none; /* simple mobile */ }
    .btn-group { flex-direction: column; }
    .btn { width: 100%; justify-content: center; }
}

/* Scroll Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}