:root {
  --bg: #0d1117;
  --bg-soft: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --text-dim: #8b949e;
  --accent: #58a6ff;
  --accent-2: #bc8cff;
  --accent-3: #f78166;
  --radius: 12px;
  --max-width: 880px;
  --shadow: 0 8px 24px rgba(1, 4, 9, 0.45);
}

[data-theme="light"] {
  --bg: #ffffff;
  --bg-soft: #f6f8fa;
  --border: #d0d7de;
  --text: #1f2328;
  --text-dim: #57606a;
  --accent: #0969da;
  --accent-2: #8250df;
  --accent-3: #cf222e;
  --shadow: 0 8px 24px rgba(140, 149, 159, 0.2);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, Segoe UI, sans-serif;
  line-height: 1.6;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(139, 148, 158, 0.18) 1px, transparent 0);
  background-size: 26px 26px;
  transition: background-color 0.25s ease, color 0.25s ease;
}

a {
  color: var(--accent);
  text-decoration: none;
}

h1, h2, h3, .logo, .handle, .badges, .lang {
  font-family: "JetBrains Mono", monospace;
}

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
}

.logo {
  font-weight: 700;
  color: var(--text);
  font-size: 1.05rem;
}

.cursor {
  color: var(--accent);
  animation: blink 1.1s steps(2, start) infinite;
}

@keyframes blink {
  to {
    visibility: hidden;
  }
}

.nav-links {
  display: flex;
  gap: 22px;
}

.nav-links a {
  color: var(--text-dim);
  font-size: 0.92rem;
  font-weight: 500;
}

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

#theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  cursor: pointer;
}

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

#theme-toggle .icon-moon { display: none; }
[data-theme="light"] #theme-toggle .icon-sun { display: none; }
[data-theme="light"] #theme-toggle .icon-moon { display: block; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 96px 24px 64px;
  text-align: center;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -120px;
  left: 50%;
  width: 560px;
  height: 360px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, var(--accent), transparent), radial-gradient(closest-side at 70% 60%, var(--accent-2), transparent);
  opacity: 0.18;
  filter: blur(40px);
  z-index: -1;
}

.avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 3px solid var(--border);
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 20px 0 4px;
  color: var(--text-dim);
  font-family: "JetBrains Mono", monospace;
}

.hero h1 {
  margin: 0;
  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.handle {
  color: var(--accent);
  margin: 6px 0 4px;
  font-size: 0.95rem;
}

.role {
  color: var(--text-dim);
  margin: 0 0 18px;
  font-size: 0.92rem;
}

.tagline {
  font-size: 1.15rem;
  color: var(--text-dim);
  max-width: 460px;
  margin: 0 auto 28px;
}

.accent {
  color: var(--text);
  font-weight: 600;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.cta-row {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid var(--border);
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-ghost {
  color: var(--text);
  background: var(--bg-soft);
}

.btn-ghost:hover {
  border-color: var(--accent);
}

/* ---------- Sections ---------- */
.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 56px 24px;
  border-top: 1px solid var(--border);
}

.section h2 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  margin: 0 0 22px;
}

.about-text {
  max-width: 640px;
  color: var(--text-dim);
}

.facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 0;
}

.facts span {
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.85rem;
  color: var(--text);
}

.badges {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 18px 0 0;
}

.badges li {
  border: 1px solid var(--border);
  background: var(--bg-soft);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* ---------- Projects ---------- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.card {
  border: 1px solid var(--border);
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.card header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

.card h3 {
  margin: 0;
  font-size: 0.98rem;
}

.stars {
  font-size: 0.8rem;
  color: var(--accent-3);
  white-space: nowrap;
}

.card p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.92rem;
  flex: 1;
}

.card footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
}

.lang {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-dim);
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--c);
  display: inline-block;
}

.more-link {
  margin-top: 22px;
  font-size: 0.9rem;
}

/* ---------- Stats ---------- */
.stats-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.stats-grid img {
  border-radius: var(--radius);
  max-width: 100%;
  height: auto;
  flex: 1 1 320px;
}

/* ---------- Contact ---------- */
.social-row {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.social-row a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-size: 0.95rem;
}

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

/* ---------- Footer ---------- */
footer {
  text-align: center;
  padding: 32px 24px 48px;
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .cursor {
    animation: none;
  }
}

@media (max-width: 600px) {
  .nav-links {
    gap: 14px;
  }
  .nav-links a {
    font-size: 0.82rem;
  }
  .hero h1 {
    font-size: 2rem;
  }
}