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

    :root {
      --transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

    /* ===== DARK THEME ===== */
    [data-theme="dark"] {
      --bg:          #060a12;
      --bg2:         #0d1420;
      --bg3:         #111827;
      --surface:     #141c2e;
      --border:      #1e2d47;
      --text:        #e8edf5;
      --text-muted:  #7a8faa;
      --text-dim:    #4a5e78;
      --accent:      #2563eb;
      --accent2:     #3b82f6;
      --accent-glow: rgba(37, 99, 235, 0.35);
      --accent-soft: rgba(59, 130, 246, 0.12);
      --heading:     #f0f4ff;
      --card-bg:     #0f1724;
      --card-border: #1a2640;
      --nav-bg:      rgba(6, 10, 18, 0.88);
      --tag-bg:      rgba(37,99,235,0.15);
      --tag-color:   #60a5fa;
      --icon-filter: invert(0);
    }

    /* ===== LIGHT THEME ===== */
    [data-theme="light"] {
      --bg:          #f0f4fb;
      --bg2:         #e8eef8;
      --bg3:         #dde6f5;
      --surface:     #ffffff;
      --border:      #c8d8ef;
      --text:        #1a2540;
      --text-muted:  #4f6080;
      --text-dim:    #8fa0bc;
      --accent:      #1d4ed8;
      --accent2:     #2563eb;
      --accent-glow: rgba(29, 78, 216, 0.2);
      --accent-soft: rgba(37, 99, 235, 0.08);
      --heading:     #0d1a33;
      --card-bg:     #ffffff;
      --card-border: #d0dff0;
      --nav-bg:      rgba(240, 244, 251, 0.9);
      --tag-bg:      rgba(37,99,235,0.1);
      --tag-color:   #1d4ed8;
      --icon-filter: invert(1);
    }

    html { scroll-behavior: smooth; }

    body {
      font-family: 'DM Sans', sans-serif;
      background: var(--bg);
      color: var(--text);
      transition: background var(--transition), color var(--transition);
      overflow-x: hidden;
      line-height: 1.6;
    }

    /* ===== CURSOR ===== */
    .cursor {
      width: 12px; height: 12px;
      background: var(--accent2);
      border-radius: 50%;
      position: fixed; pointer-events: none;
      z-index: 9999;
      transition: transform 0.1s, opacity 0.3s;
      mix-blend-mode: screen;
    }
    .cursor-follower {
      width: 36px; height: 36px;
      border: 1.5px solid var(--accent2);
      border-radius: 50%;
      position: fixed; pointer-events: none;
      z-index: 9998;
      transition: transform 0.18s cubic-bezier(.25,.46,.45,.94), opacity 0.3s;
      opacity: 0.5;
    }

    /* ===== NOISE OVERLAY ===== */
    body::before {
      content: '';
      position: fixed; inset: 0;
      background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
      pointer-events: none; z-index: 0;
      opacity: 0.6;
    }

    /* ===== NAVBAR ===== */
    nav {
      position: fixed; top: 0; left: 0; right: 0; z-index: 100;
      background: var(--nav-bg);
      border-bottom: 1px solid var(--border);
      transition: background var(--transition), border-color var(--transition);
    }
    .nav-inner {
      max-width: 1100px; margin: auto;
      padding: 1rem 2rem;
      display: flex; align-items: center; justify-content: space-between;
    }
    .nav-logo {
      font-family: 'Space Mono', monospace;
      font-size: 1.1rem; font-weight: 700;
      color: var(--accent2);
      text-decoration: none;
      letter-spacing: -0.02em;
    }
    .nav-logo span { color: var(--text-muted); }
    .nav-links {
      display: flex; gap: 2rem; list-style: none;
      align-items: center;
    }
    .nav-links a {
      font-family: 'DM Sans', sans-serif;
      font-size: 0.9rem; font-weight: 500;
      color: var(--text-muted);
      text-decoration: none;
      letter-spacing: 0.02em;
      transition: color 0.2s;
      position: relative;
    }
    .nav-links a::after {
      content: '';
      position: absolute; bottom: -3px; left: 0; right: 0;
      height: 1.5px; background: var(--accent2);
      transform: scaleX(0); transform-origin: left;
      transition: transform 0.25s;
    }
    .nav-links a:hover { color: var(--text); }
    .nav-links a:hover::after { transform: scaleX(1); }

    /* Theme Toggle */
    .theme-toggle {
      background: var(--surface); border: 1px solid var(--border);
      border-radius: 50px; padding: 0.35rem 0.8rem;
      cursor: pointer; display: flex; align-items: center; gap: 0.5rem;
      transition: all 0.3s; color: var(--text-muted);
      font-size: 0.85rem; font-weight: 500;
    }
    .theme-toggle:hover {
      border-color: var(--accent2); color: var(--accent2);
      box-shadow: 0 0 15px var(--accent-glow);
    }
    .theme-toggle .icon { font-size: 1rem; transition: transform 0.4s; }
    .theme-toggle:hover .icon { transform: rotate(20deg); }

    /* Hamburger */
    .hamburger { display: none; cursor: pointer; background: none; border: none; color: var(--text); padding: 4px; }

    /* ===== HERO ===== */
    #hero {
      min-height: 100vh;
      display: flex; align-items: center;
      position: relative; overflow: hidden;
      padding: 0 2rem;
    }
    .hero-bg {
      position: absolute; inset: 0; z-index: 0;
    }
    .hero-grid {
      position: absolute; inset: 0;
      background-image:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
      background-size: 60px 60px;
      opacity: 0.25;
    }
    .hero-glow {
      position: absolute;
      width: 700px; height: 700px;
      background: radial-gradient(circle, var(--accent-glow) 0%, transparent 65%);
      top: 50%; left: 50%; transform: translate(-50%, -55%);
      pointer-events: none;
    }
    .hero-inner {
      max-width: 1100px; margin: auto; width: 100%;
      position: relative; z-index: 1;
      padding-top: 5rem;
    }
    .hero-badge {
      display: inline-flex; align-items: center; gap: 0.5rem;
      background: var(--accent-soft); border: 1px solid var(--border);
      border-left: 3px solid var(--accent2);
      border-radius: 4px; padding: 0.4rem 1rem;
      font-family: 'Space Mono', monospace;
      font-size: 0.75rem; color: var(--accent2);
      letter-spacing: 0.1em; text-transform: uppercase;
      margin-bottom: 2rem;
      animation: fadeSlideUp 0.7s ease forwards;
    }
    .badge-dot {
      width: 7px; height: 7px;
      background: var(--accent2); border-radius: 50%;
      animation: pulse 1.5s infinite;
    }
    @keyframes pulse {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.5; transform: scale(0.7); }
    }
    .hero-title {
      font-family: 'Playfair Display', serif;
      font-size: clamp(3.2rem, 7vw, 6.5rem);
      font-weight: 900; line-height: 1.05;
      color: var(--heading);
      margin-bottom: 0.3rem;
      animation: fadeSlideUp 0.7s 0.1s ease both;
    }
    .hero-title em {
      font-style: italic;
      color: var(--accent2);
      position: relative;
    }
    .hero-title em::after {
      content: '';
      position: absolute; bottom: 4px; left: 0; right: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--accent), transparent);
      border-radius: 2px;
    }
    .hero-subtitle {
      font-family: 'DM Sans', sans-serif;
      font-size: clamp(1.1rem, 2vw, 1.35rem);
      font-weight: 300; color: var(--text-muted);
      max-width: 520px; margin: 1.5rem 0 2.5rem;
      animation: fadeSlideUp 0.7s 0.2s ease both;
    }
    .hero-cta {
      display: flex; gap: 1rem; flex-wrap: wrap;
      animation: fadeSlideUp 0.7s 0.3s ease both;
    }
    .btn-primary {
      display: inline-flex; align-items: center; gap: 0.6rem;
      background: var(--accent); color: #fff;
      padding: 0.85rem 2rem; border-radius: 6px;
      text-decoration: none; font-weight: 500; font-size: 0.95rem;
      border: 1px solid var(--accent);
      transition: all 0.25s;
      box-shadow: 0 0 25px var(--accent-glow);
    }
    .btn-primary:hover {
      background: var(--accent2); transform: translateY(-2px);
      box-shadow: 0 8px 35px var(--accent-glow);
    }
    .btn-outline {
      display: inline-flex; align-items: center; gap: 0.6rem;
      background: transparent; color: var(--text);
      padding: 0.85rem 2rem; border-radius: 6px;
      text-decoration: none; font-weight: 500; font-size: 0.95rem;
      border: 1px solid var(--border);
      transition: all 0.25s;
    }
    .btn-outline:hover {
      border-color: var(--accent2); color: var(--accent2);
      transform: translateY(-2px);
      box-shadow: 0 4px 20px var(--accent-glow);
    }
    .hero-scroll {
      position: absolute; bottom: 2.5rem; left: 50%; transform: translateX(-50%);
      display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
      color: var(--text-dim); font-size: 0.75rem;
      font-family: 'Space Mono', monospace; letter-spacing: 0.1em;
      animation: fadeSlideUp 0.7s 0.5s ease both;
    }
    .scroll-line {
      width: 1px; height: 50px;
      background: linear-gradient(to bottom, var(--accent2), transparent);
      animation: scrollAnim 1.8s ease-in-out infinite;
    }
    @keyframes scrollAnim {
      0% { transform: scaleY(0); transform-origin: top; }
      50% { transform: scaleY(1); transform-origin: top; }
      51% { transform: scaleY(1); transform-origin: bottom; }
      100% { transform: scaleY(0); transform-origin: bottom; }
    }

    /* Stats */
    .hero-stats {
      display: flex; gap: 3rem; margin-top: 4rem;
      animation: fadeSlideUp 0.7s 0.4s ease both;
    }
    .stat { border-left: 2px solid var(--accent2); padding-left: 1rem; }
    .stat-num {
      font-family: 'Space Mono', monospace;
      font-size: 2rem; font-weight: 700;
      color: var(--heading); line-height: 1;
    }
    .stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.25rem; }

    @keyframes fadeSlideUp {
      from { opacity: 0; transform: translateY(25px); }
      to   { opacity: 1; transform: translateY(0); }
    }

    /* ===== SECTIONS ===== */
    section { padding: 6rem 2rem; position: relative; z-index: 1; }
    .section-inner { max-width: 1100px; margin: auto; }
    .section-label {
      font-family: 'Space Mono', monospace;
      font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase;
      color: var(--accent2); margin-bottom: 0.8rem;
      display: flex; align-items: center; gap: 0.7rem;
    }
    .section-label::after {
      content: ''; flex: 1; max-width: 50px;
      height: 1px; background: var(--accent2);
    }
    .section-title {
      font-family: 'Playfair Display', serif;
      font-size: clamp(2rem, 4vw, 3rem);
      font-weight: 700; color: var(--heading);
      line-height: 1.15;
    }
    .section-subtitle {
      color: var(--text-muted); max-width: 500px;
      margin-top: 0.7rem; font-size: 1rem; font-weight: 300;
    }
    .section-head { margin-bottom: 3.5rem; }
    .divider {
      width: 100%; height: 1px;
      background: linear-gradient(90deg, transparent, var(--border), transparent);
      margin: 0;
    }

    /* ===== ABOUT ===== */
    #about { background: var(--bg2); }
    .about-grid {
      display: grid; grid-template-columns: 1fr 1fr;
      gap: 5rem; align-items: center;
    }
    .about-img-wrap {
      position: relative;
    }
    .about-img-bg {
      width: 100%; aspect-ratio: 3/4;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--bg3) 0%, var(--surface) 100%);
      border: 1px solid var(--border);
      display: flex; align-items: center; justify-content: center;
      overflow: hidden; position: relative;
    }
    .about-avatar {
      font-size: 8rem; line-height: 1;
      filter: drop-shadow(0 10px 30px var(--accent-glow));
    }
    .about-img-accent {
      position: absolute; bottom: -20px; right: -20px;
      width: 120px; height: 120px;
      border: 2px solid var(--accent2); border-radius: 8px;
      background: var(--surface);
      display: flex; flex-direction: column; align-items: center; justify-content: center;
      gap: 4px; padding: 1rem;
    }
    .about-img-accent .num {
      font-family: 'Space Mono', monospace; font-size: 1.8rem;
      font-weight: 700; color: var(--accent2); line-height: 1;
    }
    .about-img-accent .lbl { font-size: 0.68rem; color: var(--text-muted); text-align: center; }
    .about-text p {
      color: var(--text-muted); font-size: 1rem;
      font-weight: 300; line-height: 1.9;
      margin-bottom: 1.2rem;
    }
    .about-text p strong { color: var(--text); font-weight: 500; }

    /* Skills chips */
    .skills-grid {
      display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 2rem;
    }
    .skill-chip {
      background: var(--tag-bg); color: var(--tag-color);
      border: 1px solid var(--border);
      border-radius: 4px; padding: 0.35rem 0.85rem;
      font-family: 'Space Mono', monospace; font-size: 0.75rem;
      transition: all 0.2s;
    }
    .skill-chip:hover {
      border-color: var(--accent2);
      box-shadow: 0 0 10px var(--accent-glow);
    }

    /* ===== PROJECTS ===== */
    #projects { background: var(--bg); }
    .projects-grid {
      display: grid; grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
    }
    .project-card {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: 10px; overflow: hidden;
      transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
      cursor: pointer;
    }
    .project-card:hover {
      transform: translateY(-6px);
      border-color: var(--accent2);
      box-shadow: 0 20px 50px -10px var(--accent-glow);
    }
    .project-thumb {
      height: 190px;
      display: flex; align-items: center; justify-content: center;
      font-size: 3.5rem;
      position: relative; overflow: hidden;
      transition: filter 0.3s;
    }
    .project-card:hover .project-thumb { filter: brightness(1.1); }
    .project-thumb-overlay {
      position: absolute; inset: 0;
      background: linear-gradient(to top, var(--card-bg) 0%, transparent 50%);
    }
    .p1 { background: linear-gradient(135deg, #0d1a40 0%, #1e3a8a 100%); }
    .p2 { background: linear-gradient(135deg, #0a1628 0%, #1d4ed8 100%); }
    .p3 { background: linear-gradient(135deg, #060f1e 0%, #1e40af 100%); }
    .p4 { background: linear-gradient(135deg, #0d1c3a 0%, #2563eb 100%); }
    .p5 { background: linear-gradient(135deg, #071020 0%, #3b82f6 100%); }
    .p6 { background: linear-gradient(135deg, #0a1428 0%, #60a5fa 50%, #1d4ed8 100%); }
    .project-body { padding: 1.5rem; }
    .project-tags {
      display: flex; gap: 0.4rem; flex-wrap: wrap; margin-bottom: 0.8rem;
    }
    .project-tag {
      font-family: 'Space Mono', monospace; font-size: 0.65rem;
      background: var(--tag-bg); color: var(--tag-color);
      padding: 0.2rem 0.6rem; border-radius: 3px;
    }
    .project-name {
      font-family: 'Playfair Display', serif;
      font-size: 1.25rem; font-weight: 700;
      color: var(--heading); margin-bottom: 0.5rem;
    }
    .project-desc { color: var(--text-muted); font-size: 0.88rem; line-height: 1.7; }
    .project-footer {
      display: flex; justify-content: space-between; align-items: center;
      padding: 1rem 1.5rem;
      border-top: 1px solid var(--border);
    }
    .project-link {
      font-family: 'Space Mono', monospace; font-size: 0.75rem;
      color: var(--accent2); text-decoration: none;
      transition: gap 0.2s; display: flex; align-items: center; gap: 0.4rem;
    }
    .project-link:hover { gap: 0.8rem; }
    .project-link-arrow { transition: transform 0.2s; }
    .project-link:hover .project-link-arrow { transform: translateX(4px); }

    /* ===== EXPERIENCE ===== */
    #experience { background: var(--bg2); }
    .timeline { position: relative; padding-left: 2.5rem; }
    .timeline::before {
      content: ''; position: absolute;
      left: 0; top: 0; bottom: 0; width: 1px;
      background: linear-gradient(to bottom, var(--accent2), transparent);
    }
    .timeline-item {
      position: relative; margin-bottom: 3rem;
      padding-bottom: 3rem;
      border-bottom: 1px solid var(--border);
    }
    .timeline-item:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: none; }
    .timeline-dot {
      position: absolute; left: -2.5rem; top: 4px;
      width: 12px; height: 12px;
      background: var(--bg2); border: 2px solid var(--accent2);
      border-radius: 50;
      box-shadow: 0 0 0 4px var(--accent-soft);
    }
    .timeline-period {
      font-family: 'Space Mono', monospace; font-size: 0.72rem;
      color: var(--accent2); letter-spacing: 0.1em; margin-bottom: 0.5rem;
    }
    .timeline-role {
      font-family: 'Playfair Display', serif; font-size: 1.4rem;
      font-weight: 700; color: var(--heading); margin-bottom: 0.25rem;
    }
    .timeline-company { color: var(--text-muted); font-weight: 500; margin-bottom: 1rem; }
    .timeline-desc { color: var(--text-muted); font-size: 0.92rem; line-height: 1.8; max-width: 580px; }

    /* ===== CONTACT ===== */
    #contact { background: var(--bg); }
    .contact-grid {
      display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start;
    }
    .contact-info p {
      color: var(--text-muted); font-size: 1rem;
      font-weight: 300; line-height: 1.9; margin-bottom: 2rem;
    }
    .contact-links { display: flex; flex-direction: column; gap: 1rem; }
    .contact-link {
      display: flex; align-items: center; gap: 1rem;
      color: var(--text); text-decoration: none; padding: 1rem 1.2rem;
      border: 1px solid var(--border); border-radius: 8px;
      background: var(--card-bg); transition: all 0.25s;
    }
    .contact-link:hover {
      border-color: var(--accent2); color: var(--accent2);
      transform: translateX(6px);
      box-shadow: 0 4px 20px var(--accent-glow);
    }
    .contact-link-icon { font-size: 1.3rem; }
    .contact-link-text { display: flex; flex-direction: column; }
    .contact-link-label {
      font-family: 'Space Mono', monospace; font-size: 0.7rem;
      color: var(--text-muted); letter-spacing: 0.1em; text-transform: uppercase;
    }
    .contact-link-val { font-size: 0.95rem; font-weight: 500; }

    /* Form */
    .contact-form { display: flex; flex-direction: column; gap: 1.2rem; }
    .form-group { display: flex; flex-direction: column; gap: 0.5rem; }
    .form-group label {
      font-family: 'Space Mono', monospace; font-size: 0.72rem;
      color: var(--text-muted); letter-spacing: 0.1em; text-transform: uppercase;
    }
    .form-group input,
    .form-group textarea {
      background: var(--card-bg); border: 1px solid var(--border);
      border-radius: 6px; padding: 0.9rem 1rem;
      color: var(--text); font-family: 'DM Sans', sans-serif; font-size: 0.95rem;
      transition: border-color 0.2s, box-shadow 0.2s;
      outline: none; resize: vertical;
    }
    .form-group input:focus,
    .form-group textarea:focus {
      border-color: var(--accent2);
      box-shadow: 0 0 0 3px var(--accent-soft);
    }
    .form-group textarea { min-height: 130px; }
    .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
    .btn-send {
      background: var(--accent); color: #fff;
      padding: 0.9rem 2rem; border-radius: 6px;
      border: none; cursor: pointer; font-family: 'DM Sans', sans-serif;
      font-size: 0.95rem; font-weight: 600;
      transition: all 0.25s; align-self: flex-start;
      display: flex; align-items: center; gap: 0.6rem;
      box-shadow: 0 4px 20px var(--accent-glow);
    }
    .btn-send:hover {
      background: var(--accent2); transform: translateY(-2px);
      box-shadow: 0 8px 30px var(--accent-glow);
    }
    .btn-send:active { transform: translateY(0); }
    #form-success {
      display: none; text-align: center; padding: 2rem;
      background: var(--accent-soft); border: 1px solid var(--border);
      border-radius: 8px; color: var(--accent2);
      font-family: 'Space Mono', monospace;
    }

    /* ===== FOOTER ===== */
    footer {
      background: var(--bg2); border-top: 1px solid var(--border);
      padding: 2.5rem 2rem;
    }
    .footer-inner {
      max-width: 1100px; margin: auto;
      display: flex; align-items: center; justify-content: space-between;
      flex-wrap: wrap; gap: 1rem;
    }
    .footer-logo {
      font-family: 'Space Mono', monospace; font-size: 1rem;
      font-weight: 700; color: var(--accent2); text-decoration: none;
    }
    .footer-copy { font-size: 0.82rem; color: var(--text-dim); }
    .footer-social { display: flex; gap: 0.8rem; }
    .social-btn {
      width: 36px; height: 36px; border-radius: 8px;
      border: 1px solid var(--border); background: var(--card-bg);
      display: flex; align-items: center; justify-content: center;
      text-decoration: none; font-size: 1rem;
      transition: all 0.2s; color: var(--text-muted);
    }
    .social-btn:hover {
      border-color: var(--accent2); color: var(--accent2);
      box-shadow: 0 0 12px var(--accent-glow);
    }

    /* ===== SCROLL REVEAL ===== */
    .reveal {
      opacity: 0; transform: translateY(30px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .reveal.visible { opacity: 1; transform: none; }
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }

    /* ===== PROGRESS BAR ===== */
    .progress-bar {
      position: fixed; top: 0; left: 0; z-index: 200;
      height: 3px; width: 0%;
      background: linear-gradient(90deg, var(--accent), var(--accent2), #60a5fa);
      transition: width 0.1s linear;
    }

    /* ===== MOBILE ===== */
    @media (max-width: 860px) {
      .projects-grid { grid-template-columns: 1fr 1fr; }
      .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
      .about-img-wrap { max-width: 360px; margin: auto; }
      .hero-stats { gap: 1.5rem; }
      .nav-links {
        display: none; position: fixed; top: 65px; left: 0; right: 0;
        flex-direction: column; padding: 1.5rem 2rem;
        border-bottom: 1px solid var(--border);
        gap: 1.2rem;
      }
      .nav-links.open { display: flex; }
      .hamburger { display: block; }
    }
    @media (max-width: 560px) {
      .projects-grid { grid-template-columns: 1fr; }
      .form-row { grid-template-columns: 1fr; }
      .hero-stats { flex-wrap: wrap; }
    }