:root {
    --bg-black: #050505;
    --navy-dark: #0f172a;
    --navy-card: #1e293b;
    --neon-cyan: #38bdf8;
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
}

body {
    background-color: var(--bg-black);
    color: var(--text-main);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    line-height: 1.6;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

nav { height: 60px; }

.hero-section {
    display: flex;
    align-items: flex-start;
    gap: 50px;
    padding: 40px 0;
}

.hero-left {
    flex: 0 0 240px;
}

.hero-right {
    flex: 1;
    text-align: left;
}

.profile-pic {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--neon-cyan);
    box-shadow: 0 0 30px rgba(56, 189, 248, 0.2);
    transition: 0.3s;
}

.profile-pic:hover {
    transform: scale(1.02);
    box-shadow: 0 0 40px rgba(56, 189, 248, 0.3);
}

h1 {
    font-size: 3.5rem;
    margin: 0 0 10px 0;
    color: var(--text-main);
    line-height: 1.1;
}

.tagline {
    font-size: 1.2rem;
    color: var(--neon-cyan);
    font-weight: 600;
    margin-bottom: 20px;
}

.badge-container-inline {
    display: flex;
    gap: 12px;
    margin-bottom: 15px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 15px;
    font-size: 0.8rem;
    border-radius: 50px;
    font-weight: 700;
    background: rgba(255, 255, 255, 0.05);
    white-space: nowrap;
}

.icpc { border: 1px solid #fbbf24; color: #fbbf24; }
.backend { border: 1px solid var(--neon-cyan); color: var(--neon-cyan); }

.mini-streak-bar {
    display: inline-flex;
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(56, 189, 248, 0.3);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    margin-bottom: 25px;
    font-weight: 600;
}

.about-text {
    color: var(--text-dim);
    font-size: 1.05rem;
    max-width: 750px;
}

.section-title {
    border-bottom: 1px solid var(--navy-card);
    padding-bottom: 10px;
    margin: 60px 0 30px 0;
    font-size: 1.8rem;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.project-card {
    background: var(--navy-dark);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: 0.3s;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--neon-cyan);
    background: var(--navy-card);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.project-header h3 { margin: 0; color: var(--text-main); }

.tags { margin: 15px 0; }
.tags span {
    font-size: 0.7rem;
    background: var(--navy-card);
    color: var(--neon-cyan);
    padding: 3px 8px;
    border-radius: 4px;
    margin-right: 5px;
    margin-bottom: 5px;
    display: inline-block;
    border: 1px solid rgba(56, 189, 248, 0.1);
}

.source-link {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.9rem;
    margin-top: auto;
}

.source-link:hover { color: var(--neon-cyan); }

.exp-item-container {
    background: var(--navy-dark);
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 15px;
    border: 1px solid rgba(255, 255, 255, 0.03);
}

.exp-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.exp-info h4 { margin: 0; color: var(--text-main); }
.exp-info p { margin: 2px 0; color: var(--neon-cyan); font-size: 0.9rem; }
.exp-date { color: var(--text-dim); font-size: 0.85rem; }

/* Buttons & Social */
.cta-group { margin-top: 30px; }
.btn {
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    display: inline-block;
    margin-right: 15px;
    transition: 0.3s;
}

.primary { background: var(--neon-cyan); color: var(--bg-black); }
.secondary { border: 1px solid var(--neon-cyan); color: var(--neon-cyan); }
.btn:hover { opacity: 0.9; transform: translateY(-2px); }

.social-links { margin-top: 25px; }
.social-links a {
    color: var(--text-main);
    margin-right: 25px;
    text-decoration: none;
    font-size: 1.1rem;
    transition: 0.3s;
}

.social-links a:hover { color: var(--neon-cyan); }

footer {
    text-align: center;
    padding: 60px 0;
    border-top: 1px solid var(--navy-card);
    color: var(--text-dim);
    margin-top: 50px;
}

@media (max-width: 850px) {
    .hero-section {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .hero-right { text-align: center; }
    .badge-container-inline, .cta-group, .social-links { justify-content: center; }
    .exp-item { flex-direction: column; align-items: center; gap: 10px; }
}