*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    :root {
      --black: #000000;
      --white: #ffffff;
      --font: 'Inter', system-ui, sans-serif;
      --mono: 'Space Mono', monospace;
    }
    html { scroll-behavior: smooth; }
    a { text-decoration: none; }
    body {
      font-family: var(--font);
      background: var(--white);
      color: var(--black);
      -webkit-font-smoothing: antialiased;
      font-size: 16px;
      line-height: 1.5;
    }
    .wrap { max-width: 900px; margin: 0 auto; padding: 0 40px; }

    /* ─── Sticky header ─── */
    .sticky-header {
      position: fixed; top: 0; left: 0; right: 0; z-index: 100;
      background: rgba(255,255,255,0.62);
      backdrop-filter: saturate(180%) blur(24px);
      -webkit-backdrop-filter: saturate(180%) blur(24px);
      border-bottom: 1px solid rgba(0,0,0,0.035);
    }
    .sticky-inner {
      max-width: 900px; margin: 0 auto; padding: 0 40px;
      height: 56px; display: flex; align-items: center; gap: 16px;
    }
    .sticky-avatar {
      width: 32px; height: 32px; border-radius: 50%; overflow: hidden;
      background: rgba(0,0,0,0.06); border: 1px solid rgba(0,0,0,0.1);
      flex-shrink: 0; position: relative;
    }
    .sticky-avatar img {
      position: absolute; inset: 0; width: 100%; height: 100%;
      object-fit: cover; object-position: center top;
    }
    .sticky-avatar-fallback {
      width: 100%; height: 100%; display: flex;
      align-items: center; justify-content: center; color: rgba(0,0,0,0.3);
    }
    .sticky-name {
      font-size: 14px; font-weight: 450; letter-spacing: -0.1px;
      color: var(--black); flex: 1;
    }
    .sticky-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }
    .sticky-btn {
      display: inline-flex; align-items: center; gap: 6px;
      font-family: var(--font); font-size: 13px; font-weight: 450;
      letter-spacing: -0.1px; color: var(--white); background: var(--black);
      text-decoration: none; padding: 7px 16px 8px; border-radius: 50px;
      border: none; cursor: pointer; transition: opacity .15s;
    }
    .sticky-btn:hover { opacity: .80; }
    .sticky-email-row {
      display: inline-flex; align-items: center;
      border-radius: 50px; border: 1px solid rgba(0,0,0,.18); position: relative;
    }
    .sticky-email-link {
      font-size: 13px; font-weight: 300; letter-spacing: -0.1px;
      color: rgba(0,0,0,0.7); text-decoration: none;
      padding: 7px 10px 7px 16px;
    }
    .sticky-copy-btn {
      display: flex; align-items: center; justify-content: center;
      width: 32px; height: 32px; background: none; border: none;
      cursor: pointer; color: rgba(0,0,0,0.6); border-radius: 50px;
      transition: color .12s; flex-shrink: 0;
    }
    .sticky-copy-btn:hover { color: var(--black); }
    .sticky-copy-tooltip {
      position: absolute; bottom: calc(100% + 6px); left: 50%;
      transform: translateX(-50%); background: var(--black);
      color: var(--white); font-size: 11px; padding: 4px 8px;
      border-radius: 4px; white-space: nowrap; pointer-events: none;
      opacity: 0; transition: opacity .15s;
    }
    .sticky-copy-tooltip.visible { opacity: 1; }

    /* ─── Page body offset for fixed header ─── */
    .page-body { padding-top: 80px; }

    /* ─── Back link ─── */
    .proj-back {
      display: inline-flex; align-items: center; gap: 8px;
      font-family: var(--mono); font-size: 11px; letter-spacing: 0.5px;
      text-transform: uppercase; color: rgba(0,0,0,0.6);
      text-decoration: none; transition: color .12s; margin-bottom: 28px;
    }
    .proj-back:hover { color: var(--black); }

    /* ─── Project header ─── */
    .proj-header { margin-bottom: 48px; }
    .proj-tag {
      font-family: var(--mono); font-size: 11px; letter-spacing: 0.54px;
      text-transform: uppercase; color: rgba(0,0,0,0.6);
      margin-bottom: 12px; display: block;
    }
    .proj-title {
      font-size: 36px; font-weight: 520; letter-spacing: -0.5px;
      line-height: 1.15; margin-bottom: 20px;
    }
    .proj-description {
      font-size: 17px; font-weight: 300; line-height: 1.65;
      color: rgba(0,0,0,0.55); max-width: 640px;
    }

    /* ─── Cover image ─── */
    .proj-cover {
      width: 100%; border-radius: 10px; overflow: hidden;
      background: rgba(0,0,0,.04); margin-bottom: 64px;
    }
    .proj-cover img { width: 100%; height: auto; display: block; }
    .proj-cover-placeholder {
      aspect-ratio: 16/9; display: flex; align-items: center;
      justify-content: center; flex-direction: column; gap: 10px;
    }
    .proj-cover-placeholder span {
      font-family: var(--mono); font-size: 11px; letter-spacing: 0.5px;
      text-transform: uppercase; color: rgba(0,0,0,0.25);
    }

    /* ─── Content sections ─── */
    .proj-section { margin-bottom: 64px; }
    .proj-section-label {
      font-family: var(--mono); font-size: 11px; letter-spacing: 0.54px;
      text-transform: uppercase; color: rgba(0,0,0,0.6);
      margin-bottom: 20px; display: block;
    }
    .proj-text {
      font-size: 16px; font-weight: 300; line-height: 1.75;
      color: rgba(0,0,0,0.6); max-width: 680px;
    }
    .proj-img-block {
      width: 100%; border-radius: 8px; overflow: hidden; background: rgba(0,0,0,.03);
    }
    .proj-img-block img { width: 100%; height: auto; display: block; }
    .proj-img-placeholder {
      aspect-ratio: 16/9; display: flex; align-items: center; justify-content: center;
    }
    .proj-img-placeholder span {
      font-family: var(--mono); font-size: 11px; text-transform: uppercase;
      letter-spacing: 0.5px; color: rgba(0,0,0,0.22);
    }
    .proj-img-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .proj-caption {
      font-size: 12px; font-weight: 300; color: rgba(0,0,0,0.6);
      margin-top: 10px; font-family: var(--mono); letter-spacing: 0.3px;
    }

    /* ─── Footer ─── */
    footer {
      background: var(--white); border-top: 1px solid rgba(0,0,0,.08);
      padding: 36px 0; margin-top: 40px;
    }
    .footer-inner {
      display: flex; align-items: center; justify-content: space-between;
      flex-wrap: wrap; gap: 14px;
    }
    .footer-available {
      font-family: var(--mono); font-size: 11px; letter-spacing: 0.4px;
      text-transform: uppercase; color: rgba(0,0,0,0.6);
    }
    .footer-links { display: flex; align-items: center; gap: 20px; }
    .footer-links a {
      font-size: 13px; font-weight: 300; letter-spacing: -0.1px;
      color: rgba(0,0,0,0.6); text-decoration: none; transition: color .12s;
    }
    .footer-links a:hover { color: var(--black); }

    @media (max-width: 680px) {
      .wrap { padding: 0 20px; }
      .sticky-inner { padding: 0 20px; gap: 10px; }
      .sticky-name { display: none; }
      .sticky-actions { margin-left: auto; }
      .proj-title { font-size: 26px; }
      .proj-img-grid { grid-template-columns: 1fr; }
      .footer-inner { flex-direction: column; align-items: flex-start; }
    }
    /* Dark theme */
    [data-theme="dark"] { --black: #f0f0f0; --white: #0d0d0d; }
    [data-theme="dark"] body { background: #0d0d0d; color: #f0f0f0; }
    [data-theme="dark"] .sticky-header { background: rgba(13,13,13,0.75); border-bottom-color: rgba(255,255,255,0.06); }
    [data-theme="dark"] .sticky-avatar { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.1); }
    [data-theme="dark"] .sticky-name { color: #f0f0f0; }
    [data-theme="dark"] .sticky-btn { background: #f0f0f0; color: #0d0d0d; }
    [data-theme="dark"] .sticky-email-row { border-color: rgba(255,255,255,0.1); }
    [data-theme="dark"] .sticky-email-link { color: rgba(255,255,255,0.7); }
    [data-theme="dark"] .sticky-copy-btn { color: rgba(255,255,255,0.6); }
    [data-theme="dark"] .sticky-copy-btn:hover { color: #f0f0f0; }
    [data-theme="dark"] .sticky-copy-tooltip { background: #f0f0f0; color: #0d0d0d; }
    [data-theme="dark"] .proj-back { color: rgba(255,255,255,0.6); }
    [data-theme="dark"] .proj-back:hover { color: #f0f0f0; }
    [data-theme="dark"] .proj-tag { color: rgba(255,255,255,0.6); }
    [data-theme="dark"] .proj-title { color: #f0f0f0; }
    [data-theme="dark"] .proj-img { background: rgba(255,255,255,0.05); }
    [data-theme="dark"] .proj-img-placeholder span { color: rgba(255,255,255,0.22); }
    [data-theme="dark"] .proj-img-placeholder svg { color: rgba(255,255,255,0.15); }
    [data-theme="dark"] .proj-section-title { color: #f0f0f0; }
    [data-theme="dark"] .proj-text { color: rgba(255,255,255,0.6); }
    [data-theme="dark"] .proj-caption { color: rgba(255,255,255,0.6); }
    [data-theme="dark"] footer { background: #0d0d0d; border-top-color: rgba(255,255,255,0.08); }
    [data-theme="dark"] .footer-available { color: rgba(255,255,255,0.6); }
    [data-theme="dark"] .footer-links a { color: rgba(255,255,255,0.6); }
    [data-theme="dark"] .footer-links a:hover { color: #f0f0f0; }