:root {
      --bg: #06091a; --bg2: #090d22; --navy: #0a0f2c;
      --blue1: #1a2fff; --neon: #00d4ff;
      --text: #e8eaf6; --muted: #7986cb;
      --border: rgba(100,130,255,0.12);
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body { font-family: 'Instrument Sans', sans-serif; background: var(--bg); color: var(--text); overflow-x: hidden; }
    ::-webkit-scrollbar { width: 4px; }
    ::-webkit-scrollbar-track { background: var(--bg); }
    ::-webkit-scrollbar-thumb { background: var(--blue1); border-radius: 2px; }

    /* NAV */
    nav:not(.breadcrumb):not(.proj-nav) {
      position: fixed; top: 0; left: 0; right: 0; z-index: 100;
      display: flex; align-items: center; justify-content: space-between;
      padding: 1.4rem 5vw; background: rgba(6,9,26,0.85);
      backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); transition: padding 0.3s;
    }
    .nav-logo {
      font-family: 'Rajdhani', sans-serif; font-weight: 800; font-size: 1.2rem;
      background: linear-gradient(135deg, var(--neon), var(--blue1));
      -webkit-background-clip: text; -webkit-text-fill-color: transparent; text-decoration: none;
    }
    .nav-links { display: flex; gap: 2.5rem; list-style: none; position: relative; left: 7rem; }
    .nav-links a {
      font-family: 'DM Mono', monospace; font-size: 0.78rem; letter-spacing: 0.1em;
      text-transform: uppercase; color: var(--muted); text-decoration: none; transition: color 0.2s; position: relative;
    }
    .nav-links a::after { content: ''; position: absolute; bottom: -4px; left: 0; right: 0; height: 1px; background: var(--neon); transform: scaleX(0); transition: transform 0.3s; }
    .nav-links a:hover { color: var(--neon); }
    .nav-links a:hover::after { transform: scaleX(1); }
    .nav-cta {
      font-family: 'DM Mono', monospace; font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase;
      padding: 0.5rem 1.2rem; border: 1px solid rgba(0,212,255,0.4); border-radius: 4px;
      color: var(--neon); text-decoration: none; background: transparent; transition: background 0.3s;
    }
    .nav-cta:hover { background: rgba(0,212,255,0.08); }
    .nav-cv {
      font-family: 'DM Mono', monospace; font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase;
      padding: 0.5rem 1.1rem; border: 1px solid rgba(255,255,255,0.12); border-radius: 4px;
      color: rgba(232,234,246,0.7); text-decoration: none; background: rgba(255,255,255,0.04); transition: all 0.3s;
    }
    .nav-cv:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.25); color: #fff; }
    .burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
    .burger span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; }

    /* PAGE */
    .project-page { max-width: 860px; margin: 0 auto; padding: 7rem 2rem 5rem; }

    /* Breadcrumb */
    .breadcrumb {
      display: flex; align-items: center; gap: 0.6rem; font-family: 'DM Mono', monospace;
      font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase;
      color: var(--muted); margin-bottom: 3rem;
    }
    .breadcrumb a { color: var(--muted); text-decoration: none; transition: color 0.2s; }
    .breadcrumb a:hover { color: var(--neon); }
    .breadcrumb .sep { color: rgba(121,134,203,0.35); }
    .breadcrumb .current { color: var(--neon); }

    /* Section label */
    .section-label {
      font-family: 'DM Mono', monospace; font-size: 0.7rem; letter-spacing: 0.25em;
      text-transform: uppercase; color: var(--neon); margin-bottom: 1rem;
      display: flex; align-items: center; gap: 1rem;
    }
    .section-label::after { content: ''; flex: 1; max-width: 80px; height: 1px; background: linear-gradient(to right, var(--neon), transparent); }

    /* Header */
    .proj-header { margin-bottom: 3rem; }
    .proj-title {
      font-family: 'Rajdhani', sans-serif; font-weight: 700;
      font-size: clamp(2.4rem, 5vw, 4rem); letter-spacing: -0.02em; line-height: 1.05; margin-bottom: 1.2rem;
    }
    .proj-title span { background: linear-gradient(135deg, var(--neon), var(--blue1)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
    .proj-tagline { font-size: 1.05rem; color: rgba(232,234,246,0.6); line-height: 1.75; max-width: 640px; margin-bottom: 2rem; }

    /* Badges */
    .proj-meta-row { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-bottom: 2rem; }
    .proj-meta-badge {
      font-family: 'DM Mono', monospace; font-size: 0.7rem; letter-spacing: 0.07em; text-transform: uppercase;
      padding: 0.35rem 0.9rem; border-radius: 4px; border: 1px solid var(--border); color: var(--muted); background: rgba(10,15,44,0.5);
    }
    .proj-meta-badge.highlight { border-color: rgba(0,212,255,0.35); color: var(--neon); background: rgba(0,212,255,0.06); }

    /* CTA */
    .proj-ctas { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 3.5rem; }
    .proj-btn {
      font-family: 'DM Mono', monospace; font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase;
      padding: 0.7rem 1.5rem; border-radius: 6px; text-decoration: none; transition: all 0.2s;
    }
    .proj-btn--primary { background: linear-gradient(135deg, var(--blue1), var(--neon)); color: #fff; border: none; }
    .proj-btn--primary:hover { opacity: 0.85; transform: translateY(-2px); }
    .proj-btn--secondary { border: 1px solid rgba(0,212,255,0.35); color: var(--neon); background: transparent; }
    .proj-btn--secondary:hover { background: rgba(0,212,255,0.08); transform: translateY(-2px); }

    /* Cover */
    .proj-cover {
      width: 100%; aspect-ratio: 16/9; border-radius: 16px; overflow: hidden;
      border: 1px solid var(--border); margin-bottom: 4rem;
      background: var(--navy); box-shadow: 0 0 60px rgba(26,47,255,0.15);
    }
    .proj-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
    .proj-cover-placeholder {
      width: 100%; height: 100%; display: flex; flex-direction: column;
      align-items: center; justify-content: center; gap: 1rem;
      color: var(--muted); font-family: 'DM Mono', monospace; font-size: 0.75rem;
      letter-spacing: 0.1em; text-transform: uppercase;
      background: linear-gradient(135deg, rgba(26,47,255,0.06), rgba(0,212,255,0.03));
    }
    .proj-cover-placeholder svg { opacity: 0.25; }

    /* Sections */
    .proj-section { margin-bottom: 3.5rem; padding-bottom: 3.5rem; border-bottom: 1px solid var(--border); }
    .proj-section:last-of-type { border-bottom: none; }
    .proj-section-title {
      font-family: 'Rajdhani', sans-serif; font-weight: 700; font-size: 1.5rem;
      letter-spacing: 0.02em; margin-bottom: 1.2rem; color: #fff;
      display: flex; align-items: center; gap: 0.7rem;
    }
    .proj-section-title::before {
      content: ''; display: inline-block; width: 3px; height: 1.1em;
      background: linear-gradient(to bottom, var(--neon), var(--blue1)); border-radius: 2px; flex-shrink: 0;
    }
    .proj-section p { color: rgba(232,234,246,0.62); line-height: 1.85; font-size: 1rem; margin-bottom: 1rem; }
    .proj-section p:last-child { margin-bottom: 0; }

    /* Contributions */
    .contrib-list { list-style: none; display: flex; flex-direction: column; gap: 0.9rem; margin-top: 1rem; }
    .contrib-list li { display: flex; gap: 1rem; align-items: flex-start; color: rgba(232,234,246,0.62); line-height: 1.7; font-size: 1rem; }
    .contrib-list li::before { content: '→'; font-family: 'DM Mono', monospace; color: var(--neon); font-size: 0.85rem; flex-shrink: 0; margin-top: 0.15rem; }

    /* Stack */
    .proj-stack { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 0.8rem; }
    .proj-tag {
      font-family: 'DM Mono', monospace; font-size: 0.72rem; letter-spacing: 0.06em;
      padding: 0.4rem 0.9rem; border-radius: 4px; border: 1px solid var(--border); color: var(--muted); background: rgba(10,15,44,0.4);
    }

    /* Gallery */
    .proj-gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1rem; }
    .proj-gallery img { width: 100%; aspect-ratio: 16/10; object-fit: cover; border-radius: 10px; border: 1px solid var(--border); display: block; }
    .proj-gallery-placeholder {
      aspect-ratio: 16/10; border-radius: 10px; border: 1px dashed rgba(100,130,255,0.2);
      display: flex; align-items: center; justify-content: center;
      color: rgba(121,134,203,0.35); font-family: 'DM Mono', monospace; font-size: 0.7rem;
      letter-spacing: 0.08em; text-transform: uppercase; background: rgba(10,15,44,0.3);
    }

    /* Learnings */
    .learnings-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1rem; }
    .learning-card { background: rgba(10,15,44,0.5); border: 1px solid var(--border); border-radius: 12px; padding: 1.3rem 1.4rem; transition: border-color 0.2s; }
    .learning-card:hover { border-color: rgba(0,212,255,0.25); }
    .learning-card__icon { font-size: 1.4rem; margin-bottom: 0.6rem; }
    .learning-card__title { font-family: 'DM Mono', monospace; font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--neon); margin-bottom: 0.5rem; }
    .learning-card__desc { font-size: 0.88rem; color: rgba(232,234,246,0.5); line-height: 1.6; }

    /* Bottom nav */
    .proj-nav { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding-top: 3rem; flex-wrap: wrap; }
    .proj-nav-link { font-family: 'DM Mono', monospace; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); text-decoration: none; transition: color 0.2s; }
    .proj-nav-link:hover { color: var(--neon); }
    .proj-nav-back { font-family: 'DM Mono', monospace; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--neon); text-decoration: none; border: 1px solid rgba(0,212,255,0.3); padding: 0.5rem 1.2rem; border-radius: 4px; transition: background 0.2s; }
    .proj-nav-back:hover { background: rgba(0,212,255,0.08); }

    /* Footer */
    footer { padding: 2.5rem 5vw; background: var(--bg); border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
    footer p { font-family: 'DM Mono', monospace; font-size: 0.7rem; color: var(--muted); letter-spacing: 0.08em; }
    .footer-logo { font-family: 'Rajdhani', sans-serif; font-weight: 800; font-size: 1rem; background: linear-gradient(135deg, var(--neon), var(--blue1)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

    /* Reveal */
    .reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
    .reveal.visible { opacity: 1; transform: none; }

    /* Responsive */
    @media (max-width: 900px) { .nav-links, .nav-cta { display: none; } .burger { display: flex; } }
    @media (max-width: 640px) {
      .project-page { padding: 6rem 1.4rem 4rem; }
      .proj-gallery, .learnings-grid { grid-template-columns: 1fr; }
      .proj-nav { flex-direction: column; align-items: flex-start; }
    }