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

:root {
  --bg: #0a0a0a;
  --surface: #111111;
  --surface-2: #1a1a1a;
  --border: #222222;
  --text: #e8e8e8;
  --text-muted: #888888;
  --accent: #7c6af7;
  --accent-dim: rgba(124, 106, 247, 0.12);
  --font: 'Inter', system-ui, sans-serif;
  --radius: 12px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Nav ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 2.5rem;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 400;
  transition: color 0.2s;
}

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

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 7rem 2.5rem 4rem;
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.hero-content { max-width: 640px; z-index: 1; }

.hero-tag {
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.hero-name {
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.hero-role {
  font-size: 1.3rem;
  color: var(--text-muted);
  font-weight: 300;
  margin-bottom: 1.5rem;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: 2.5rem;
  line-height: 1.75;
}

.accent { color: var(--accent); }

.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-visual {
  position: absolute;
  right: -100px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}

.blob {
  width: 520px;
  height: 520px;
  background: radial-gradient(circle at 40% 40%, rgba(124, 106, 247, 0.18), transparent 70%);
  border-radius: 50%;
  filter: blur(40px);
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.1); opacity: 1; }
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 1.6rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
}

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

.btn-primary:hover {
  background: #6b59e8;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(124, 106, 247, 0.35);
}

.btn-secondary {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

/* ── Sections ── */
.section {
  padding: 6rem 2.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.section-alt {
  background: var(--surface);
  max-width: 100%;
  padding: 6rem 0;
}

.section-alt > * { max-width: 1100px; margin-left: auto; margin-right: auto; padding-left: 2.5rem; padding-right: 2.5rem; }
.section-alt .section-title { padding-left: 2.5rem; }

.section-title {
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
}

.section-title::after {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background: var(--accent);
  margin-top: 0.6rem;
  border-radius: 2px;
}

/* ── Cards ── */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: border-color 0.2s, transform 0.2s;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

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

.card-tag {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.card-title {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
}

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

.card-stack span {
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 0.75rem;
  padding: 0.25rem 0.65rem;
  border-radius: 4px;
  font-weight: 500;
}

.card-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
  align-self: flex-start;
}

.card-link:hover { color: var(--accent); }

/* ── Skills ── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 2rem;
  padding-left: 2.5rem;
  padding-right: 2.5rem;
}

.skill-group h4 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 1rem;
}

.skill-group ul { list-style: none; }

.skill-group li {
  font-size: 0.95rem;
  color: var(--text-muted);
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}

.skill-group li:hover { color: var(--text); }

/* ── Contact ── */
.contact-sub {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 2rem;
  margin-top: -1.5rem;
}

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

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav { padding: 1rem 1.5rem; }
  .nav-links { gap: 1.2rem; }
  .hero { padding: 6rem 1.5rem 3rem; }
  .hero-visual { display: none; }
  .section { padding: 4rem 1.5rem; }
  .section-alt .skills-grid,
  .section-alt .section-title { padding-left: 1.5rem; padding-right: 1.5rem; }
  .cards { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr 1fr; padding-left: 0; padding-right: 0; }
}

@media (max-width: 480px) {
  .nav-links { display: none; }
  .skills-grid { grid-template-columns: 1fr; }
}

/* ── Scroll reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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