:root {
  --bg: #0a0a0f;
  --surface: #13131a;
  --border: #1e1e2e;
  --accent: #6ee7b7;
  --accent2: #818cf8;
  --text: #e2e8f0;
  --muted: #64748b;
  --card: #0f0f18;
  --nav-bg: rgba(10, 10, 15, 0.7);
  --noise-opacity: 0.4;
  --shadow: rgba(0, 0, 0, 0.4);
}

[data-theme="light"] {
  --bg: #f0f4f8;
  --surface: #ffffff;
  --border: #cbd5e1;
  --accent: #059669;
  --accent2: #6366f1;
  --text: #0f172a;
  --muted: #64748b;
  --card: #ffffff;
  --nav-bg: rgba(240, 244, 248, 0.85);
  --noise-opacity: 0.12;
  --shadow: rgba(0, 0, 0, 0.1);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Mono', monospace;
  font-size: 15px;
  line-height: 1.7;
  overflow-x: hidden;
  transition: background 0.3s, color 0.3s;
}

/* Noise texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 100;
  opacity: var(--noise-opacity);
}

/* Gradient orbs */
.orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.12;
  pointer-events: none;
  z-index: 0;
}
.orb-1 { width: 600px; height: 600px; background: var(--accent); top: -200px; right: -200px; }
.orb-2 { width: 500px; height: 500px; background: var(--accent2); bottom: -100px; left: -150px; }

/* Nav */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  padding: 1.5rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(16px);
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s, border-color 0.3s;
}

.nav-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s;
}

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

.theme-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  cursor: pointer;
  font-size: 0.95rem;
  width: 2rem;
  height: 2rem;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, color 0.2s;
  flex-shrink: 0;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Main content */
main {
  position: relative;
  z-index: 1;
}

section {
  padding: 8rem 3rem;
  max-width: 1100px;
  margin: 0 auto;
}

/* Hero */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 10rem;
  padding-bottom: 6rem;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 0.6s ease forwards 0.2s;
}

.hero-tag::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--accent);
}

h1 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(3.5rem, 8vw, 7rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 0.7s ease forwards 0.35s;
}

h1 .line { display: block; }
h1 .highlight {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  max-width: 520px;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 3rem;
  opacity: 0;
  animation: fadeUp 0.7s ease forwards 0.5s;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.7s ease forwards 0.65s;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.8rem;
  border-radius: 4px;
  font-family: 'DM Mono', monospace;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: #0a0a0f;
  font-weight: 500;
}

.btn-primary:hover {
  background: #a7f3d0;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(110, 231, 183, 0.25);
}

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

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* Stats strip */
.stats-strip {
  display: flex;
  gap: 3rem;
  margin-top: 5rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border);
  opacity: 0;
  animation: fadeUp 0.7s ease forwards 0.8s;
  flex-wrap: wrap;
}

.stat-item {}
.stat-number {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  display: block;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Section headers */
.section-eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.section-eyebrow::after {
  content: '';
  display: block;
  flex: 1;
  max-width: 60px;
  height: 1px;
  background: var(--accent);
  opacity: 0.5;
}

h2 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

/* About */
#about {
  border-top: 1px solid var(--border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
  margin-top: 3rem;
}

.about-text p {
  color: var(--muted);
  margin-bottom: 1.5rem;
  line-height: 1.9;
}

.about-text p strong {
  color: var(--text);
  font-weight: 400;
}

.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.skill-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.9rem 1.1rem;
  font-size: 0.78rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  transition: all 0.2s;
}

.skill-item:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateX(4px);
}

.skill-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* Projects */
#projects {
  border-top: 1px solid var(--border);
}

.projects-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 3rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  text-decoration: none;
  display: block;
  color: inherit;
}

.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(110,231,183,0.05), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.project-card:hover {
  border-color: rgba(110, 231, 183, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px var(--shadow);
}

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

.project-tag {
  display: inline-block;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(110, 231, 183, 0.08);
  border: 1px solid rgba(110, 231, 183, 0.2);
  padding: 0.25rem 0.7rem;
  border-radius: 2px;
  margin-bottom: 1.2rem;
}

.project-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text);
}

.project-desc {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.project-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.2rem;
  border-top: 1px solid var(--border);
}

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

.stack-badge {
  font-size: 0.68rem;
  color: var(--muted);
  background: var(--surface);
  padding: 0.2rem 0.55rem;
  border-radius: 2px;
  border: 1px solid var(--border);
}

.project-arrow {
  color: var(--muted);
  font-size: 1.2rem;
  transition: all 0.2s;
}

.project-card:hover .project-arrow {
  color: var(--accent);
  transform: translate(3px, -3px);
}

/* Featured project */
.project-card.featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: start;
}

.project-card.featured .project-tag {
  background: rgba(129, 140, 248, 0.08);
  border-color: rgba(129, 140, 248, 0.2);
  color: var(--accent2);
}

/* Contact */
#contact {
  border-top: 1px solid var(--border);
  text-align: center;
}

.contact-inner {
  max-width: 560px;
  margin: 0 auto;
}

.contact-inner p {
  color: var(--muted);
  margin: 1.5rem 0 2.5rem;
  line-height: 1.9;
}

.contact-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-size: 0.75rem;
  position: relative;
  z-index: 1;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Animations */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* Cursor blink */
.cursor {
  display: inline-block;
  width: 3px;
  height: 0.85em;
  background: var(--accent);
  margin-left: 4px;
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Mobile */
@media (max-width: 768px) {
  nav { padding: 1.25rem 1.5rem; }
  .nav-links { gap: 1.5rem; }
  section { padding: 5rem 1.5rem; }
  .about-grid { grid-template-columns: 1fr; gap: 3rem; }
  .project-card.featured { grid-template-columns: 1fr; }
  footer { padding: 1.5rem; }
}