:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #16161f;
    --bg-card-hover: #1c1c28;
    --accent: #6366f1;
    --accent-glow: rgba(99, 102, 241, 0.3);
    --accent-secondary: #22d3ee;
    --text-primary: #f4f4f5;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --border: rgba(255, 255, 255, 0.06);
    --gradient: linear-gradient(135deg, #6366f1 0%, #22d3ee 100%);
    --nav-link: #89a4e0;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Outfit', sans-serif; background: var(--bg-primary); color: var(--text-primary); line-height: 1.6; overflow-x: hidden; }

.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 1.25rem 2rem; background: transparent; transition: all 0.3s ease; }
.nav.scrolled { background: rgba(10, 10, 15, 0.9); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); }
.nav-inner { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; }
.nav-brand { font-weight: 500; font-size: 1rem; color: var(--text-primary); text-decoration: none; font-family: 'Fira Code', monospace; }
.nav-brand:hover { color: var(--nav-link); }
.nav-toggle { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; background: none; border: none; cursor: pointer; padding: 0; z-index: 1002; }
.nav-toggle-inner { display: flex; flex-direction: column; gap: 7px; align-items: flex-end; }
.nav-toggle-inner .line { display: block; height: 2px; background: var(--text-primary); transition: all 0.3s ease; }
.nav-toggle-inner .line-1 { width: 24px; }
.nav-toggle-inner .line-2 { width: 16px; }
.nav-toggle.active .nav-toggle-inner .line-1 { width: 20px; transform: translateY(4.5px) rotate(45deg); }
.nav-toggle.active .nav-toggle-inner .line-2 { width: 20px; transform: translateY(-4.5px) rotate(-45deg); }
.nav-overlay { position: fixed; inset: 0; background: rgba(10, 11, 20, 0.95); z-index: 1001; display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: all 0.3s ease; }
.nav-overlay.active { opacity: 1; visibility: visible; }
.nav-links { list-style: none; text-align: center; }
.nav-links li { margin: 1.25rem 0; }
.nav-links a { font-family: 'Fira Code', monospace; font-size: clamp(1.5rem, 4vw, 2.25rem); font-weight: 400; color: #89a4e0; text-decoration: none; transition: color 0.2s; letter-spacing: -0.02em; }
.nav-links a:hover { color: var(--text-primary); }

section { max-width: 1200px; margin: 0 auto; padding: 4rem 2rem; }
.section-title { font-size: 2rem; font-weight: 700; margin-bottom: 2.5rem; display: flex; align-items: center; gap: 12px; }
.section-title::before { content: ''; width: 4px; height: 32px; background: var(--gradient); border-radius: 2px; }

.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; align-items: start; }
.portfolio-card { background: var(--bg-card); border-radius: 16px; overflow: hidden; border: 1px solid var(--border); transition: all 0.3s ease; }
.portfolio-card:hover { background: var(--bg-card-hover); border-color: rgba(99, 102, 241, 0.3); transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3); }
.portfolio-card-image { position: relative; display: block; overflow: hidden; }
.portfolio-card-image::after { content: ''; position: absolute; inset: 0; background: rgba(0, 0, 0, 0.65); transition: opacity 0.3s ease; }
.portfolio-card:hover .portfolio-card-image::after { opacity: 0; }
.portfolio-card img { width: 100%; height: 220px; object-fit: cover; transition: transform 0.3s ease; }
.portfolio-card:hover img { transform: scale(1.03); }
.portfolio-card-body { padding: 1.25rem; }
.portfolio-badges { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.badge { font-size: 0.7rem; padding: 4px 10px; border-radius: 6px; font-weight: 500; font-family: 'JetBrains Mono', monospace; }
.badge-primary { background: rgba(99, 102, 241, 0.2); color: var(--accent); }
.badge-tech { background: rgba(255, 255, 255, 0.06); color: var(--text-secondary); }
.portfolio-card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; line-height: 1.4; }
.portfolio-card a { color: var(--text-primary); text-decoration: none; }
.portfolio-card a:hover { color: var(--accent); }
.portfolio-link { display: inline-flex; align-items: center; gap: 6px; font-size: 0.9rem; color: var(--accent); margin-top: 8px; text-decoration: none; transition: gap 0.2s; }
.portfolio-link:hover { gap: 10px; }

.achievement { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; margin-bottom: 4rem; padding: 2rem 0; border-bottom: 1px solid var(--border); }
.achievement:last-of-type { border-bottom: none; }
.achievement:nth-child(even) .achievement-content { order: 2; }
.achievement:nth-child(even) .achievement-image { order: 1; }
.achievement-image { position: relative; border-radius: 12px; overflow: hidden; }
.achievement-image::after { content: ''; position: absolute; inset: 0; background: rgba(0, 0, 0, 0.65); transition: opacity 0.3s ease; }
.achievement:hover .achievement-image::after { opacity: 0; }
.achievement-image img { width: 100%; display: block; border-radius: 12px; border: 1px solid var(--border); }
.achievement-content h2 { font-size: 1.75rem; margin-bottom: 0.5rem; }
.achievement-content h2 span { color: var(--accent); }
.achievement-content h6 { color: var(--text-muted); font-weight: 400; margin-bottom: 1rem; }
.achievement-content p { color: var(--text-secondary); margin-bottom: 1.5rem; text-align: justify; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 24px; border-radius: 10px; font-weight: 600; text-decoration: none; transition: all 0.3s ease; font-family: inherit; border: none; cursor: pointer; }
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px var(--accent-glow); }

footer { background: var(--bg-secondary); padding: 2rem; text-align: center; margin-top: 4rem; border-top: 1px solid var(--border); }
footer p { color: var(--text-muted); font-size: 0.9rem; }
footer .heart { color: #ef4444; animation: pulse 1.5s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.6; } }



@media (min-width: 1400px) { .portfolio-grid { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 1024px) { .portfolio-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) {
    .portfolio-grid { grid-template-columns: 1fr; }
    .achievement { grid-template-columns: 1fr; }
    .achievement:nth-child(even) .achievement-content,
    .achievement:nth-child(even) .achievement-image { order: unset; }
}