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

:root {
  --bg:         #0c0c0e;
  --bg-alt:     #111116;
  --text:       #efefef;
  --text-mid:   #9ca3af;
  --text-dim:   #374151;
  --accent:     #7dd3fc;
  --accent-rgb: 125, 211, 252;
  --accent-bg:  rgba(125, 211, 252, 0.08);
  --border:     #1c1c24;
  --font:       'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.15s;
}
a:hover { opacity: 0.75; }

/* ── Nav ────────────────────────────────────────────────────────── */

nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2.5rem;
  background: rgba(12, 12, 14, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
}

.brand {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text);
  text-transform: uppercase;
}
.brand:hover { opacity: 0.8; }

.nav-links {
  display: flex;
  gap: 1.8rem;
  align-items: center;
}

.nav-links a {
  font-size: 0.85rem;
  color: var(--text-mid);
  transition: color 0.15s;
}
.nav-links a:hover {
  color: var(--text);
  opacity: 1;
}

.nav-resume {
  color: var(--accent) !important;
  border: 1px solid rgba(var(--accent-rgb), 0.4);
  padding: 0.28rem 0.75rem;
  border-radius: 3px;
  font-size: 0.8rem !important;
}
.nav-resume:hover {
  background: var(--accent-bg);
  opacity: 1 !important;
}

/* ── Shared section layout ──────────────────────────────────────── */

.section-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 2.5rem;
}

section {
  padding: 6rem 0;
}

.section-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2.5rem;
}

/* ── Hero ───────────────────────────────────────────────────────── */

.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  max-width: 1080px;
  margin: 0 auto;
  padding: 60px 2.5rem 4rem;
}

.hero-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-mid);
  letter-spacing: 0.06em;
  margin-bottom: 1.1rem;
}

.hero h1 {
  font-size: clamp(2rem, 3.6vw, 3rem);
  font-weight: 300;
  line-height: 1.18;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 1.4rem;
}

.hero-sub {
  font-size: 1rem;
  color: var(--text-mid);
  max-width: 440px;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

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

.btn-primary {
  background: var(--accent);
  color: #0c0c0e;
  padding: 0.65rem 1.4rem;
  border-radius: 3px;
  font-weight: 500;
  font-size: 0.88rem;
  transition: opacity 0.15s;
}
.btn-primary:hover { opacity: 0.85; }

.btn-ghost {
  font-size: 0.88rem;
  color: var(--text-mid);
  border-bottom: 1px solid var(--border);
  padding-bottom: 1px;
  transition: color 0.15s, border-color 0.15s;
}
.btn-ghost:hover {
  color: var(--text);
  border-color: var(--text-mid);
  opacity: 1;
}

/* Canvas */
.hero-canvas-wrap {
  height: 480px;
  position: relative;
}

#brownian {
  width: 100%;
  height: 100%;
  display: block;
}

/* ── About ──────────────────────────────────────────────────────── */

.about {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 4.5rem;
  align-items: start;
}

.about-photo img {
  width: 100%;
  border-radius: 3px;
  display: block;
  filter: grayscale(10%) contrast(1.05);
}

.about-body p {
  color: #b8b8c4;
  font-size: 0.95rem;
  margin-bottom: 1.1rem;
  max-width: 640px;
}
.about-body p:last-child { margin-bottom: 0; }

/* ── Work ───────────────────────────────────────────────────────── */

.work-list {
  border-top: 1px solid var(--border);
}

.work-item {
  padding: 2.4rem 0;
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 2rem;
  align-items: start;
}

.work-meta {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding-top: 0.25rem;
  line-height: 1.5;
}

.work-content h3 {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 0.7rem;
  line-height: 1.3;
}

.work-content p {
  font-size: 0.93rem;
  color: #9ca3af;
  max-width: 640px;
  line-height: 1.72;
}

.work-links {
  display: flex;
  gap: 1.4rem;
  margin-top: 0.9rem;
  flex-wrap: wrap;
}

.work-links a {
  font-size: 0.82rem;
  color: var(--accent);
}

/* ── Contact ────────────────────────────────────────────────────── */

.contact {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}

.contact-email {
  font-size: 1.6rem;
  font-weight: 300;
  letter-spacing: -0.01em;
  margin-bottom: 2rem;
}

.contact-email a {
  color: var(--text);
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
  transition: color 0.15s, border-color 0.15s;
}
.contact-email a:hover {
  color: var(--accent);
  border-color: var(--accent);
  opacity: 1;
}

.social-links {
  display: flex;
  gap: 1.6rem;
  flex-wrap: wrap;
}

.social-links a {
  font-size: 0.85rem;
  color: var(--text-mid);
  transition: color 0.15s;
}
.social-links a:hover {
  color: var(--text);
  opacity: 1;
}

/* ── Footer ─────────────────────────────────────────────────────── */

footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
}

footer p {
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* ── Responsive ─────────────────────────────────────────────────── */

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 90px;
    padding-bottom: 3rem;
    gap: 2rem;
  }

  .hero-canvas-wrap {
    height: 280px;
    order: -1;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about-photo img {
    max-width: 240px;
  }

  .work-item {
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }
}

@media (max-width: 540px) {
  nav { padding: 0 1.2rem; }

  .nav-links a:not(.nav-resume) { display: none; }

  .section-inner { padding: 0 1.4rem; }

  .hero { padding-left: 1.4rem; padding-right: 1.4rem; }

  .hero h1 { font-size: 1.75rem; }

  .contact-email { font-size: 1.2rem; }
}