/* ── TOKENS ── */
    :root {
      --bg:          #0d0a0b;
      --bg2:         #120d0e;
      --bg3:         #1a1013;
      --burg:        #7d1535;
      --burg-light:  #a31d44;
      --burg-glow:   #c4244f;
      --burg-dim:    #3d0a1a;
      --gold:        #c9a84c;
      --text:        #e8ddd5;
      --text-muted:  #8a7a74;
      --text-faint:  #3d3330;
      --border:      rgba(125,21,53,0.25);
      --border-soft: rgba(125,21,53,0.12);
      --sidebar-w:   300px;
      --nav-h:       64px;
      --radius:      4px;
      --transition:  0.35s cubic-bezier(0.4,0,0.2,1);
    }

    /* ── RESET ── */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; font-size: 16px; }
    body {
      background: var(--bg);
      color: var(--text);
      font-family: 'Outfit', sans-serif;
      font-weight: 300;
      min-height: 100vh;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; }
    ul { list-style: none; }
    img { display: block; max-width: 100%; }
    button { font-family: inherit; cursor: pointer; border: none; background: none; }

    /* ── SCROLLBAR ── */
    ::-webkit-scrollbar { width: 6px; }
    ::-webkit-scrollbar-track { background: var(--bg2); }
    ::-webkit-scrollbar-thumb { background: var(--burg); border-radius: 3px; }

    /* ── NOISE OVERLAY ── */
    body::before {
      content: '';
      position: fixed; inset: 0;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
      pointer-events: none;
      z-index: 999;
      opacity: 0.5;
    }

    /* ══════════════════════════════════
       NAV
    ══════════════════════════════════ */
    nav {
      position: fixed; top: 0; left: 0; right: 0;
      height: var(--nav-h);
      display: flex; align-items: center; justify-content: space-between;
      padding: 0 2rem;
      background: rgba(13,10,11,0.85);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--border);
      z-index: 500;
    }
    .nav-logo {
      font-family: 'Playfair Display', serif;
      font-size: 1.4rem;
      font-weight: 900;
      letter-spacing: -0.02em;
      color: var(--text);
    }
    .nav-logo span { color: var(--burg-glow); }
    .nav-links {
      display: flex; gap: 0.25rem;
    }
    .nav-links a {
      font-family: 'DM Mono', monospace;
      font-size: 0.72rem;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--text-muted);
      padding: 0.5rem 1rem;
      border: 1px solid transparent;
      border-radius: var(--radius);
      transition: all var(--transition);
      position: relative;
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--text);
      border-color: var(--border);
      background: rgba(125,21,53,0.08);
    }
    .nav-links a.cta {
      background: var(--burg);
      color: var(--text);
      border-color: var(--burg);
    }
    .nav-links a.cta:hover {
      background: var(--burg-light);
      border-color: var(--burg-light);
    }
    /* hamburger */
    .nav-toggle {
      display: none;
      flex-direction: column; gap: 5px;
      width: 28px; cursor: pointer; padding: 4px;
    }
    .nav-toggle span {
      display: block; height: 2px; background: var(--text);
      transition: all var(--transition);
    }

    /* ══════════════════════════════════
       LAYOUT
    ══════════════════════════════════ */
    .layout {
      display: flex;
      padding-top: var(--nav-h);
      min-height: 100vh;
    }

    /* ══════════════════════════════════
       SIDEBAR
    ══════════════════════════════════ */
    .sidebar {
      width: var(--sidebar-w);
      flex-shrink: 0;
      position: sticky;
      top: var(--nav-h);
      height: calc(100vh - var(--nav-h));
      overflow-y: auto;
      padding: 2.5rem 1.75rem;
      border-right: 1px solid var(--border-soft);
      background: var(--bg2);
      display: flex;
      flex-direction: column;
      gap: 2rem;
    }

    /* avatar block */
    .sidebar-avatar {
      position: relative;
      display: flex; flex-direction: column; align-items: center;
      text-align: center;
      gap: 1rem;
    }
    .avatar-ring {
      position: relative;
      width: 90px; height: 90px;
    }
    .avatar-ring::before {
      content: '';
      position: absolute; inset: -3px;
      border-radius: 50%;
      background: conic-gradient(var(--burg-glow) 0%, var(--burg) 40%, transparent 60%);
      animation: spin 6s linear infinite;
    }
    @keyframes spin { to { transform: rotate(360deg); } }
    .avatar-img {
      position: relative; z-index: 1;
      width: 84px; height: 84px;
      border-radius: 50%;
      background: var(--burg-dim);
      border: 3px solid var(--bg2);
      display: flex; align-items: center; justify-content: center;
      font-family: 'Playfair Display', serif;
      font-size: 2rem;
      font-weight: 900;
      color: var(--burg-glow);
      margin: 3px;
    }
    .sidebar-name {
      font-family: 'Playfair Display', serif;
      font-size: 1.15rem;
      font-weight: 700;
    }
    .sidebar-role {
      font-family: 'DM Mono', monospace;
      font-size: 0.65rem;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      color: var(--burg-glow);
    }

    /* greeting card */
    .greeting-card {
      background: var(--bg3);
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: 1.25rem;
      position: relative;
      overflow: hidden;
    }
    .greeting-card::before {
      content: '"';
      position: absolute; top: -0.5rem; left: 0.75rem;
      font-family: 'Playfair Display', serif;
      font-size: 5rem;
      color: var(--burg-dim);
      line-height: 1;
      pointer-events: none;
    }
    .greeting-label {
      font-family: 'DM Mono', monospace;
      font-size: 0.6rem;
      text-transform: uppercase;
      letter-spacing: 0.15em;
      color: var(--burg-glow);
      margin-bottom: 0.5rem;
    }
    .greeting-text {
      font-size: 0.85rem;
      line-height: 1.7;
      color: var(--text-muted);
      position: relative; z-index: 1;
    }
    .greeting-text em {
      font-style: normal;
      color: var(--text);
    }

    /* terminal status */
    .sidebar-status {
      display: flex; align-items: center; gap: 0.6rem;
      font-family: 'DM Mono', monospace;
      font-size: 0.7rem;
      color: var(--text-muted);
    }
    .status-dot {
      width: 8px; height: 8px; border-radius: 50%;
      background: #22c55e;
      box-shadow: 0 0 8px #22c55e;
      animation: pulse-dot 2s ease-in-out infinite;
    }
    @keyframes pulse-dot {
      0%,100% { opacity: 1; }
      50% { opacity: 0.4; }
    }

    /* social links */
    .sidebar-links {
      display: flex; flex-direction: column; gap: 0.6rem;
      margin-top: auto;
    }
    .sidebar-link {
      display: flex; align-items: center; gap: 0.75rem;
      padding: 0.75rem 1rem;
      border: 1px solid var(--border-soft);
      border-radius: var(--radius);
      color: var(--text-muted);
      font-size: 0.82rem;
      transition: all var(--transition);
      background: var(--bg3);
    }
    .sidebar-link:hover {
      border-color: var(--burg);
      color: var(--text);
      background: rgba(125,21,53,0.1);
      transform: translateX(3px);
    }
    .sidebar-link svg {
      width: 16px; height: 16px; flex-shrink: 0;
      color: var(--burg-glow);
    }

    /* ══════════════════════════════════
       MAIN CONTENT
    ══════════════════════════════════ */
    main {
      flex: 1;
      overflow-x: hidden;
    }

    /* section shared */
    .section {
      padding: 6rem 4rem;
      display: none;
      animation: fadeUp 0.55s ease forwards;
    }
    .section.active { display: block; }
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(24px); }
      to   { opacity: 1; transform: translateY(0); }
    }

    /* ── SECTION LABELS ── */
    .section-eyebrow {
      font-family: 'DM Mono', monospace;
      font-size: 0.65rem;
      letter-spacing: 0.2em;
      text-transform: uppercase;
      color: var(--burg-glow);
      margin-bottom: 0.75rem;
    }
    .section-title {
      font-family: 'Playfair Display', serif;
      font-size: clamp(2.2rem, 4vw, 3.5rem);
      font-weight: 900;
      line-height: 1.05;
      margin-bottom: 1.5rem;
    }
    .section-divider {
      width: 48px; height: 2px;
      background: var(--burg);
      margin-bottom: 3rem;
    }

    /* ══════════════════════════════════
       HOMEPAGE (hero)
    ══════════════════════════════════ */
    #home {
      padding: 0;
      min-height: calc(100vh - var(--nav-h));
      position: relative;
      display: none;
      flex-direction: column;
      justify-content: center;
    }
    #home.active {
      display: flex;
    }

    /* background mesh */
    .hero-bg {
      position: absolute; inset: 0; overflow: hidden; z-index: 0;
    }
    .hero-bg::before {
      content: '';
      position: absolute;
      width: 700px; height: 700px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(125,21,53,0.18) 0%, transparent 70%);
      top: -200px; right: -200px;
      animation: breathe 8s ease-in-out infinite;
    }
    .hero-bg::after {
      content: '';
      position: absolute;
      width: 500px; height: 500px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(163,29,68,0.1) 0%, transparent 70%);
      bottom: -150px; left: 5%;
      animation: breathe 10s ease-in-out infinite reverse;
    }
    @keyframes breathe {
      0%,100% { transform: scale(1) translateY(0); }
      50% { transform: scale(1.08) translateY(-20px); }
    }

    /* grid lines decoration */
    .hero-grid {
      position: absolute; inset: 0; z-index: 0;
      background-image:
        linear-gradient(rgba(125,21,53,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(125,21,53,0.04) 1px, transparent 1px);
      background-size: 60px 60px;
      mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 0%, transparent 100%);
    }

    .hero-content {
      position: relative; z-index: 1;
      padding: 4rem 4rem 4rem 5rem;
      max-width: 780px;
    }

    .hero-tag {
      display: inline-flex; align-items: center; gap: 0.5rem;
      font-family: 'DM Mono', monospace;
      font-size: 0.68rem;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--burg-glow);
      border: 1px solid var(--border);
      padding: 0.4rem 0.9rem;
      border-radius: 100px;
      background: rgba(125,21,53,0.08);
      margin-bottom: 2rem;
      animation: fadeUp 0.5s 0.1s ease both;
    }
    .hero-tag::before {
      content: '';
      width: 6px; height: 6px; border-radius: 50%;
      background: var(--burg-glow);
      box-shadow: 0 0 8px var(--burg-glow);
    }

    .hero-title {
      font-family: 'Playfair Display', serif;
      font-size: clamp(3rem, 6vw, 5.5rem);
      font-weight: 900;
      line-height: 1.0;
      letter-spacing: -0.02em;
      margin-bottom: 1.5rem;
      animation: fadeUp 0.5s 0.2s ease both;
    }
    .hero-title .line2 {
      font-style: italic;
      color: var(--burg-glow);
    }

    .hero-sub {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.8;
      max-width: 520px;
      margin-bottom: 3rem;
      animation: fadeUp 0.5s 0.3s ease both;
    }

    .hero-ctas {
      display: flex; gap: 1rem; flex-wrap: wrap;
      animation: fadeUp 0.5s 0.4s ease both;
    }
    .btn-primary {
      display: inline-flex; align-items: center; gap: 0.5rem;
      padding: 0.85rem 1.8rem;
      background: var(--burg);
      color: var(--text);
      border: 1px solid var(--burg);
      border-radius: var(--radius);
      font-size: 0.85rem;
      font-weight: 500;
      letter-spacing: 0.03em;
      transition: all var(--transition);
    }
    .btn-primary:hover {
      background: var(--burg-light);
      border-color: var(--burg-light);
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(125,21,53,0.4);
    }
    .btn-secondary {
      display: inline-flex; align-items: center; gap: 0.5rem;
      padding: 0.85rem 1.8rem;
      background: transparent;
      color: var(--text);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      font-size: 0.85rem;
      font-weight: 500;
      letter-spacing: 0.03em;
      transition: all var(--transition);
    }
    .btn-secondary:hover {
      border-color: var(--burg-glow);
      background: rgba(125,21,53,0.08);
      transform: translateY(-2px);
    }

    /* scroll indicator */
    .hero-scroll {
      position: absolute; bottom: 2.5rem; left: 5rem;
      display: flex; align-items: center; gap: 0.75rem;
      font-family: 'DM Mono', monospace;
      font-size: 0.6rem;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--text-faint);
      animation: fadeUp 0.5s 0.6s ease both;
    }
    .scroll-line {
      width: 40px; height: 1px;
      background: linear-gradient(to right, var(--burg), transparent);
    }

    /* stats row */
    .hero-stats {
      position: absolute; bottom: 0; right: 0;
      display: flex; gap: 0; z-index: 1;
      animation: fadeUp 0.5s 0.5s ease both;
    }
    .stat-item {
      padding: 1.75rem 2.5rem;
      border-left: 1px solid var(--border-soft);
      border-top: 1px solid var(--border-soft);
      background: rgba(18,13,14,0.7);
      backdrop-filter: blur(8px);
      text-align: center;
    }
    .stat-num {
      font-family: 'Playfair Display', serif;
      font-size: 2rem;
      font-weight: 900;
      color: var(--burg-glow);
    }
    .stat-label {
      font-family: 'DM Mono', monospace;
      font-size: 0.6rem;
      letter-spacing: 0.15em;
      text-transform: uppercase;
      color: var(--text-muted);
      margin-top: 0.25rem;
    }

    /* ══════════════════════════════════
       ABOUT
    ══════════════════════════════════ */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4rem;
      align-items: start;
    }
    .about-text p {
      color: var(--text-muted);
      line-height: 1.9;
      margin-bottom: 1rem;
      font-size: 0.95rem;
    }
    .about-text p strong {
      color: var(--text);
      font-weight: 500;
    }

    .skills-block { margin-top: 2.5rem; }
    .skills-label {
      font-family: 'DM Mono', monospace;
      font-size: 0.65rem;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--burg-glow);
      margin-bottom: 1rem;
    }
    .skills-grid {
      display: flex; flex-wrap: wrap; gap: 0.5rem;
    }
    .skill-chip {
      font-family: 'DM Mono', monospace;
      font-size: 0.7rem;
      letter-spacing: 0.06em;
      padding: 0.35rem 0.85rem;
      background: var(--bg3);
      border: 1px solid var(--border);
      border-radius: 100px;
      color: var(--text-muted);
      transition: all var(--transition);
    }
    .skill-chip:hover {
      border-color: var(--burg-glow);
      color: var(--text);
      background: rgba(125,21,53,0.1);
    }

    /* experience timeline */
    .timeline { position: relative; }
    .timeline::before {
      content: '';
      position: absolute; left: 0; top: 0; bottom: 0;
      width: 1px;
      background: linear-gradient(to bottom, var(--burg), transparent);
    }
    .timeline-item {
      padding-left: 2rem;
      padding-bottom: 2.5rem;
      position: relative;
    }
    .timeline-item::before {
      content: '';
      position: absolute; left: -4px; top: 4px;
      width: 9px; height: 9px; border-radius: 50%;
      background: var(--burg);
      box-shadow: 0 0 12px rgba(196,36,79,0.5);
    }
    .timeline-period {
      font-family: 'DM Mono', monospace;
      font-size: 0.62rem;
      letter-spacing: 0.1em;
      color: var(--burg-glow);
      margin-bottom: 0.3rem;
    }
    .timeline-role {
      font-size: 1rem;
      font-weight: 500;
      margin-bottom: 0.15rem;
    }
    .timeline-company {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 0.6rem;
    }
    .timeline-desc {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* ══════════════════════════════════
       PORTFOLIO
    ══════════════════════════════════ */
    .portfolio-filter {
      display: flex; gap: 0.5rem; flex-wrap: wrap;
      margin-bottom: 3rem;
    }
    .filter-btn {
      font-family: 'DM Mono', monospace;
      font-size: 0.68rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      padding: 0.4rem 1rem;
      border: 1px solid var(--border);
      border-radius: 100px;
      color: var(--text-muted);
      background: transparent;
      transition: all var(--transition);
    }
    .filter-btn:hover, .filter-btn.active {
      border-color: var(--burg);
      color: var(--text);
      background: rgba(125,21,53,0.12);
    }

    .portfolio-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
      gap: 1.5rem;
    }
    .project-card {
      background: var(--bg2);
      border: 1px solid var(--border-soft);
      border-radius: 8px;
      overflow: hidden;
      transition: all var(--transition);
      cursor: pointer;
      position: relative;
    }
    .project-card:hover {
      border-color: var(--burg);
      transform: translateY(-6px);
      box-shadow: 0 20px 48px rgba(125,21,53,0.2);
    }
    .project-thumb {
      height: 180px;
      background: var(--bg3);
      position: relative;
      overflow: hidden;
      display: flex; align-items: center; justify-content: center;
    }
    .project-thumb-pattern {
      position: absolute; inset: 0;
      background-image:
        linear-gradient(rgba(125,21,53,0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(125,21,53,0.08) 1px, transparent 1px);
      background-size: 30px 30px;
    }
    .project-thumb-icon {
      font-size: 2.5rem;
      position: relative; z-index: 1;
    }
    .project-thumb-label {
      position: absolute; top: 0.75rem; right: 0.75rem;
      font-family: 'DM Mono', monospace;
      font-size: 0.6rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      padding: 0.25rem 0.6rem;
      background: var(--burg);
      border-radius: 100px;
      color: var(--text);
    }
    .project-body { padding: 1.5rem; }
    .project-name {
      font-family: 'Playfair Display', serif;
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 0.4rem;
    }
    .project-desc {
      font-size: 0.8rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 1rem;
    }
    .project-tags {
      display: flex; flex-wrap: wrap; gap: 0.35rem;
    }
    .project-tag {
      font-family: 'DM Mono', monospace;
      font-size: 0.6rem;
      padding: 0.2rem 0.55rem;
      background: rgba(125,21,53,0.1);
      border: 1px solid var(--border);
      border-radius: 3px;
      color: var(--burg-glow);
    }

    /* ══════════════════════════════════
       CONTACT
    ══════════════════════════════════ */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.4fr;
      gap: 4rem;
      align-items: start;
    }
    .contact-intro p {
      color: var(--text-muted);
      font-size: 0.9rem;
      line-height: 1.8;
      margin-bottom: 1rem;
    }
    .contact-info-list {
      margin-top: 2rem;
      display: flex; flex-direction: column; gap: 1rem;
    }
    .contact-info-item {
      display: flex; align-items: flex-start; gap: 0.85rem;
    }
    .contact-info-icon {
      width: 36px; height: 36px; flex-shrink: 0;
      border-radius: var(--radius);
      background: var(--bg3);
      border: 1px solid var(--border);
      display: flex; align-items: center; justify-content: center;
    }
    .contact-info-icon svg { width: 15px; height: 15px; color: var(--burg-glow); }
    .contact-info-label {
      font-family: 'DM Mono', monospace;
      font-size: 0.6rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--text-muted);
      margin-bottom: 0.2rem;
    }
    .contact-info-value {
      font-size: 0.85rem;
      color: var(--text);
    }

    /* FORM */
    .contact-form {
      display: flex; flex-direction: column; gap: 1.25rem;
    }
    .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
    .form-group {
      display: flex; flex-direction: column; gap: 0.45rem;
    }
    .form-label {
      font-family: 'DM Mono', monospace;
      font-size: 0.62rem;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      color: var(--text-muted);
    }
    .form-input, .form-textarea {
      background: var(--bg2);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 0.75rem 1rem;
      color: var(--text);
      font-family: 'Outfit', sans-serif;
      font-size: 0.88rem;
      transition: border-color var(--transition);
      outline: none;
      resize: none;
    }
    .form-input:focus, .form-textarea:focus {
      border-color: var(--burg-glow);
      box-shadow: 0 0 0 3px rgba(196,36,79,0.1);
    }
    .form-input::placeholder, .form-textarea::placeholder { color: var(--text-faint); }
    .form-textarea { min-height: 130px; }
    .form-submit {
      display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
      padding: 0.9rem 2rem;
      background: var(--burg);
      color: var(--text);
      border: 1px solid var(--burg);
      border-radius: var(--radius);
      font-family: 'Outfit', sans-serif;
      font-size: 0.88rem;
      font-weight: 500;
      letter-spacing: 0.04em;
      transition: all var(--transition);
      align-self: flex-start;
    }
    .form-submit:hover {
      background: var(--burg-light);
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(125,21,53,0.4);
    }
    .form-submit svg { width: 15px; height: 15px; }

    /* toast */
    .toast {
      position: fixed; bottom: 2rem; right: 2rem;
      background: var(--bg2);
      border: 1px solid var(--burg);
      border-radius: 8px;
      padding: 1rem 1.5rem;
      font-size: 0.85rem;
      color: var(--text);
      box-shadow: 0 8px 32px rgba(0,0,0,0.4);
      z-index: 999;
      display: flex; align-items: center; gap: 0.6rem;
      transform: translateY(100px);
      opacity: 0;
      transition: all 0.4s cubic-bezier(0.4,0,0.2,1);
    }
    .toast.show {
      transform: translateY(0);
      opacity: 1;
    }
    .toast-dot {
      width: 8px; height: 8px; border-radius: 50%;
      background: #22c55e; flex-shrink: 0;
    }

    /* ══════════════════════════════════
       CURSOR
    ══════════════════════════════════ */
    .cursor {
      position: fixed;
      width: 10px; height: 10px;
      border-radius: 50%;
      background: var(--burg-glow);
      pointer-events: none;
      z-index: 9999;
      transform: translate(-50%,-50%);
      transition: transform 0.05s, width 0.25s, height 0.25s, opacity 0.25s;
      mix-blend-mode: screen;
    }
    .cursor-ring {
      position: fixed;
      width: 36px; height: 36px;
      border-radius: 50%;
      border: 1px solid rgba(196,36,79,0.5);
      pointer-events: none;
      z-index: 9998;
      transform: translate(-50%,-50%);
      transition: transform 0.15s ease, width 0.3s, height 0.3s;
    }

    /* ══════════════════════════════════
       RESPONSIVE
    ══════════════════════════════════ */
    @media (max-width: 1100px) {
      .about-grid { grid-template-columns: 1fr; }
      .contact-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 860px) {
      .sidebar { display: none; }
      .sidebar.open {
        display: flex;
        position: fixed; top: var(--nav-h); left: 0;
        width: 280px; z-index: 400;
        height: calc(100vh - var(--nav-h));
      }
      .section { padding: 4rem 2rem; }
      .hero-content { padding: 3rem 2rem; }
      .hero-stats { display: none; }
      .hero-scroll { display: none; }
      .nav-links { display: none; }
      .nav-links.open {
        display: flex; flex-direction: column;
        position: absolute; top: var(--nav-h); left: 0; right: 0;
        background: var(--bg2);
        border-bottom: 1px solid var(--border);
        padding: 1rem;
        gap: 0.25rem;
      }
      .nav-toggle { display: flex; }
      .form-row { grid-template-columns: 1fr; }
    }