:root {
  --bg: #f1efe9;
  --surface: #f7f5f0;
  --ink: #100e0b;
  --accent: #3d3b37;
  --rule: #d8d4cc;
  --tag-bg: #ece8e0;
  --tag-border: #d5d0c6;
  --mono: 'DM Mono', monospace;
  --sans: 'Syne', sans-serif;
}

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

html { scroll-behavior: smooth; }

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

  /* ── NAV ── */
  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: #f9fafb;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--rule);
    padding: 0 2rem;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .nav-logo {
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--ink-muted);
    letter-spacing: 0.02em;
    text-decoration: none;
  }

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

  .nav-links a {
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--ink-muted);
    text-decoration: none;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    transition: color 0.2s;
  }

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

  /* ── LAYOUT ── */
  .container {
    max-width: 780px;
    margin: 0 auto;
    padding: 0 2rem;
  }

  section {
    padding: 5rem 0;
    border-bottom: 1px solid var(--rule);
  }

  section:last-of-type { border-bottom: none; }

  /* ── HERO ── */
  #hero {
    padding: 9rem 0 5rem;
    border-bottom: 1px solid var(--rule);
  }

  .hero-label {
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--ink-faint);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }

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

  h1 {
    font-size: clamp(2.4rem, 6vw, 3.6rem);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
  }

  .hero-sub {
    font-family: var(--mono);
    font-size: 0.9rem;
    color: var(--ink-muted);
    max-width: 520px;
    line-height: 1.8;
    margin-bottom: 2.5rem;
  }

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

  .btn-primary {
    background: #2f2d29;
    border-color: #2f2d29;
    color: #fff;
    font-family: var(--mono);
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--ink);
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
  }

  .btn-primary:hover { background: #44413b; }

  .btn-ghost {
    background: transparent;
    color: var(--ink);
    font-family: var(--mono);
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--rule);
    transition: border-color 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
  }

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

  /* ── SECTION HEADERS ── */
  .section-header {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    margin-bottom: 3rem;
  }

  .section-label {
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--ink-faint);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    white-space: nowrap;
  }

  h2 {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.02em;
  }

  /* ── ABOUT ── */
  .about-text {
    font-size: 1rem;
    color: var(--ink-muted);
    max-width: 640px;
    line-height: 1.9;
  }

  .about-text + .about-text { margin-top: 1rem; }

  .principles {
    margin-top: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 0;
    border-top: 1px solid var(--rule);
  }

  .principle {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--rule);
  }

  .principle-num {
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--ink-faint);
    padding-top: 3px;
    flex-shrink: 0;
    width: 1.5rem;
  }

  .principle-text {
    font-family: var(--mono);
    font-size: 0.82rem;
    color: var(--ink-muted);
    line-height: 1.6;
  }

  /* ── SKILLS ── */
  .skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    border-top: 1px solid var(--rule);
    border-left: 1px solid var(--rule);
  }

  .skill-group {
    padding: 1.5rem;
    border-right: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
  }

  .skill-group-label {
    font-family: var(--mono);
    font-size: 0.65rem;
    color: var(--ink-faint);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
  }

  .skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
  }

  .tag {
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--ink-muted);
    background: var(--tag-bg);
    border: 1px solid var(--tag-border);
    padding: 0.2rem 0.6rem;
    line-height: 1.6;
  }

  .tag.in-progress {
    color: var(--ink-faint);
    border-style: dashed;
  }

  /* ── PROJECTS ── */
  .project-card {
    padding: 2rem 0;
    border-bottom: 1px solid var(--rule);
  }

  .project-card:first-child { border-top: 1px solid var(--rule); }

  .project-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
  }

  .project-type {
    font-family: var(--mono);
    font-size: 0.65rem;
    color: var(--ink-faint);
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }

  .project-status {
    font-family: var(--mono);
    font-size: 0.65rem;
    padding: 0.15rem 0.5rem;
    border: 1px solid var(--tag-border);
    color: var(--ink-muted);
  }

  .project-status.active {
    border-color: #2d7a3a;
    color: #2d7a3a;
    background: #f0faf2;
  }

  h3 {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
  }

  .project-desc {
    font-size: 0.9rem;
    color: var(--ink-muted);
    max-width: 620px;
    line-height: 1.8;
    margin-bottom: 1rem;
  }

  .project-lessons {
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--ink-faint);
    border-left: 2px solid var(--rule);
    padding-left: 1rem;
    margin-bottom: 1rem;
    line-height: 1.8;
  }

  .project-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
  }

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

  .project-links a {
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--ink-muted);
    text-decoration: none;
    letter-spacing: 0.04em;
    border-bottom: 1px solid var(--rule);
    padding-bottom: 1px;
    transition: color 0.2s, border-color 0.2s;
  }

  .project-links a:hover { color: var(--ink); border-color: var(--ink); }

  /* ── COLLAPSIBLE (Eatscape screenshots) ── */
  .collapse-toggle {
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--ink-muted);
    background: none;
    border: 1px solid var(--rule);
    padding: 0.4rem 0.8rem;
    cursor: pointer;
    letter-spacing: 0.04em;
    transition: border-color 0.2s;
  }

  .collapse-toggle:hover { border-color: var(--ink-muted); }

  .collapse-body {
    display: none;
    margin-top: 1rem;
  }

  .collapse-body.open { display: block; }

  .carousel {
    max-width: 320px;
    position: relative;
    overflow: hidden;
  }

  .carousel-track {
    display: flex;
    transition: transform 0.35s ease;
  }

  .carousel-track img {
    width: 320px;
    flex-shrink: 0;
    border-radius: 4px;
    border: 1px solid var(--rule);
  }

  .carousel-controls {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
  }

  .carousel-btn {
    font-family: var(--mono);
    font-size: 0.7rem;
    background: none;
    border: 1px solid var(--rule);
    padding: 0.3rem 0.7rem;
    cursor: pointer;
    color: var(--ink-muted);
    transition: border-color 0.2s;
  }

  .carousel-btn:hover { border-color: var(--ink-muted); }

  /* ── EDUCATION ── */
  .edu-item {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--rule);
  }

  .edu-item:first-child { border-top: 1px solid var(--rule); }

  .edu-school {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 0.2rem;
  }

  .edu-degree {
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--ink-muted);
    margin-bottom: 0.5rem;
  }

  .edu-desc {
    font-size: 0.85rem;
    color: var(--ink-muted);
    line-height: 1.8;
  }

  /* ── CONTACT ── */
  .contact-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
    border-top: 1px solid var(--rule);
  }

  .contact-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
    border-bottom: 1px solid var(--rule);
  }

  .contact-label {
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--ink-faint);
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }

  .contact-value {
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--ink-muted);
    text-decoration: none;
    transition: color 0.2s;
  }

  .contact-value:hover { color: var(--ink); }

  /* ── FOOTER ── */
  footer {
    padding: 2rem;
    text-align: center;
  }

  .footer-text {
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--ink-faint);
    letter-spacing: 0.06em;
  }

  /* ── FADE IN ── */
  .fade-in {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.55s ease, transform 0.55s ease;
  }

  .fade-in.visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* ── RESPONSIVE ── */
  @media (max-width: 600px) {
    .skills-grid { grid-template-columns: 1fr; }
    .nav-links { display: none; }
    h1 { font-size: 2.2rem; }
    .contact-row { flex-direction: column; align-items: flex-start; gap: 0.25rem; }
  }