:root {
      --bg: #0a0a0f;
      --bg2: #111118;
      --bg3: #16161f;
      --surface: #1c1c28;
      --surface2: #242435;
      --border: #2a2a3d;
      --accent: #7c3aed;
      --accent2: #a855f7;
      --accent3: #ec4899;
      --accent4: #38bdf8;
      --accent-glow: rgba(124, 58, 237, 0.25);
      --green: #10b981;
      --text: #f1f0ff;
      --text2: #a09fc0;
      --text3: #6b6a8a;
      --font: 'Plus Jakarta Sans', sans-serif;
      --display: 'Space Grotesk', 'Plus Jakarta Sans', sans-serif;
      --radius: 16px;
      --ease: cubic-bezier(.22,.61,.36,1);
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.6; overflow-x: hidden; }
    ::selection { background: rgba(168,85,247,0.35); color: #fff; }

    /* ===== Scrollbar ===== */
    ::-webkit-scrollbar { width: 11px; }
    ::-webkit-scrollbar-track { background: var(--bg); }
    ::-webkit-scrollbar-thumb { background: linear-gradient(var(--accent), var(--accent3)); border-radius: 10px; border: 3px solid var(--bg); }

    /* ===== Preloader ===== */
    #preloader {
      position: fixed; inset: 0; z-index: 1000; background: var(--bg);
      display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 1.2rem;
      transition: opacity 0.6s ease, visibility 0.6s ease;
    }
    #preloader.done { opacity: 0; visibility: hidden; }
    .pre-logo {
      width: 64px; height: 64px; border-radius: 18px;
      background: linear-gradient(135deg, var(--accent), var(--accent3));
      display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1.5rem; color: #fff;
      font-family: var(--display); animation: prePulse 1.2s var(--ease) infinite;
      box-shadow: 0 0 50px var(--accent-glow);
    }
    .pre-bar { width: 140px; height: 3px; border-radius: 3px; background: var(--surface); overflow: hidden; }
    .pre-bar span { display: block; height: 100%; width: 40%; border-radius: 3px; background: linear-gradient(90deg, var(--accent), var(--accent3)); animation: preLoad 1s var(--ease) infinite; }
    @keyframes prePulse { 0%,100%{transform:scale(1);box-shadow:0 0 50px var(--accent-glow)} 50%{transform:scale(1.08);box-shadow:0 0 80px var(--accent-glow)} }
    @keyframes preLoad { 0%{transform:translateX(-120%)} 100%{transform:translateX(320%)} }

    /* ===== Scroll progress ===== */
    .scroll-progress { position: fixed; top: 0; left: 0; height: 3px; width: 0%; z-index: 200;
      background: linear-gradient(90deg, var(--accent), var(--accent3), var(--accent4)); box-shadow: 0 0 12px var(--accent-glow); }

    /* ===== Animated background ===== */
    .bg-fx { position: fixed; inset: 0; z-index: -2; overflow: hidden; pointer-events: none; }
    .orb { position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.5; will-change: transform; }
    .orb.o1 { width: 520px; height: 520px; background: radial-gradient(circle, #7c3aed, transparent 70%); top: -160px; left: -120px; animation: drift1 22s ease-in-out infinite; }
    .orb.o2 { width: 440px; height: 440px; background: radial-gradient(circle, #ec4899, transparent 70%); top: 40%; right: -140px; animation: drift2 26s ease-in-out infinite; }
    .orb.o3 { width: 380px; height: 380px; background: radial-gradient(circle, #38bdf8, transparent 70%); bottom: -140px; left: 30%; animation: drift3 30s ease-in-out infinite; }
    @keyframes drift1 { 0%,100%{transform:translate(0,0) scale(1)} 50%{transform:translate(120px,80px) scale(1.15)} }
    @keyframes drift2 { 0%,100%{transform:translate(0,0) scale(1)} 50%{transform:translate(-100px,-60px) scale(1.1)} }
    @keyframes drift3 { 0%,100%{transform:translate(0,0) scale(1)} 50%{transform:translate(60px,-90px) scale(1.2)} }
    .bg-grid { position: fixed; inset: 0; z-index: -2; pointer-events: none;
      background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
      background-size: 64px 64px; opacity: 0.16;
      mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, black 0%, transparent 75%);
      -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, black 0%, transparent 75%); }
    .spotlight { position: fixed; z-index: -1; width: 480px; height: 480px; border-radius: 50%; pointer-events: none;
      background: radial-gradient(circle, rgba(124,58,237,0.10), transparent 65%); transform: translate(-50%,-50%);
      left: 50%; top: 30%; transition: opacity 0.4s; will-change: left, top; }

    /* ===== NAV ===== */
    nav {
      position: fixed; top: 0; left: 0; right: 0; z-index: 100;
      padding: 1rem 2rem; display: flex; align-items: center; justify-content: space-between;
      background: rgba(10, 10, 15, 0); border-bottom: 1px solid transparent;
      transition: background 0.35s var(--ease), border-color 0.35s var(--ease), padding 0.35s var(--ease), backdrop-filter 0.35s;
    }
    nav.scrolled { background: rgba(10, 10, 15, 0.72); backdrop-filter: blur(20px) saturate(140%); border-bottom: 1px solid var(--border); padding: 0.7rem 2rem; }
    .nav-logo { font-family: var(--display); font-weight: 700; font-size: 1.15rem; letter-spacing: -0.02em;
      background: linear-gradient(135deg, var(--accent2), #c084fc); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; cursor: pointer; }
    .nav-links { display: flex; gap: 0.35rem; list-style: none; }
    .nav-links a { position: relative; color: var(--text2); text-decoration: none; font-size: 0.88rem; font-weight: 500; padding: 0.4rem 0.8rem; border-radius: 8px; transition: color 0.2s, background 0.2s; }
    .nav-links a::after { content: ''; position: absolute; left: 0.8rem; right: 0.8rem; bottom: 0.15rem; height: 2px; border-radius: 2px; background: linear-gradient(90deg, var(--accent), var(--accent3)); transform: scaleX(0); transform-origin: left; transition: transform 0.25s var(--ease); }
    .nav-links a:hover { color: var(--text); }
    .nav-links a.active { color: var(--text); }
    .nav-links a.active::after { transform: scaleX(1); }
    .nav-cta { position: relative; overflow: hidden; padding: 0.55rem 1.3rem; background: var(--accent); color: #fff; border-radius: 9px; text-decoration: none; font-size: 0.85rem; font-weight: 600; transition: transform 0.2s, box-shadow 0.2s; box-shadow: 0 6px 20px var(--accent-glow); }
    .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 10px 28px var(--accent-glow); }
    .nav-cta::before { content: ''; position: absolute; top: 0; left: -120%; width: 60%; height: 100%; background: linear-gradient(120deg, transparent, rgba(255,255,255,0.4), transparent); transform: skewX(-20deg); transition: left 0.6s; }
    .nav-cta:hover::before { left: 140%; }
    .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 4px; z-index: 101; }
    .hamburger span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; display: block; transition: 0.3s var(--ease); }
    .hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .hamburger.open span:nth-child(2) { opacity: 0; }
    .hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
    .mobile-menu { display: none; position: fixed; top: 60px; left: 0; right: 0; z-index: 99;
      background: rgba(17,17,24,0.96); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); padding: 1.5rem 2rem; flex-direction: column; gap: 1.1rem; }
    .mobile-menu.open { display: flex; animation: slideDown 0.3s var(--ease); }
    .mobile-menu a { color: var(--text2); text-decoration: none; font-weight: 500; }
    @keyframes slideDown { from { opacity: 0; transform: translateY(-12px); } to { opacity: 1; transform: none; } }

    /* ===== HERO ===== */
    #hero { min-height: 100vh; display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden; padding: 7rem 2rem 4rem; }
    .hero-content { position: relative; z-index: 1; text-align: center; max-width: 820px; }
    .hero-badge { display: inline-flex; align-items: center; gap: 0.5rem; background: rgba(28,28,40,0.6); border: 1px solid var(--border); padding: 0.4rem 1rem; border-radius: 100px; font-size: 0.8rem; font-weight: 600; color: var(--text2); margin-bottom: 1.75rem; backdrop-filter: blur(8px); }
    .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); position: relative; display: inline-block; }
    .dot::after { content: ''; position: absolute; inset: 0; border-radius: 50%; background: var(--green); animation: ping 1.8s var(--ease) infinite; }
    @keyframes ping { 0%{transform:scale(1);opacity:0.7} 100%{transform:scale(3.2);opacity:0} }
    .hero-name { font-family: var(--display); font-size: clamp(2.9rem, 9vw, 6rem); font-weight: 700; line-height: 1.02; letter-spacing: -0.035em; margin-bottom: 0.6rem; }
    .hero-name span {
      background: linear-gradient(110deg, #a855f7, #ec4899, #f59e0b, #a855f7);
      background-size: 280% auto; -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
      animation: gradShift 6s linear infinite;
    }
    @keyframes gradShift { to { background-position: 280% center; } }
    .hero-title { font-size: clamp(1.05rem, 2.5vw, 1.45rem); color: var(--text2); font-weight: 600; margin-bottom: 1.25rem; min-height: 1.6em; }
    .type-text { background: linear-gradient(135deg, var(--accent2), var(--accent4)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .type-caret { display: inline-block; width: 2px; height: 1.05em; background: var(--accent2); margin-left: 2px; vertical-align: text-bottom; animation: blink 1s steps(1) infinite; }
    @keyframes blink { 50% { opacity: 0; } }
    .hero-bio { max-width: 580px; margin: 0 auto 2.5rem; color: var(--text3); font-size: 1.02rem; line-height: 1.75; }
    .hero-links { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
    .hero-link { position: relative; overflow: hidden; display: flex; align-items: center; gap: 0.5rem; padding: 0.8rem 1.6rem; border-radius: 11px; font-weight: 600; font-size: 0.92rem; text-decoration: none; transition: transform 0.2s var(--ease), box-shadow 0.2s, background 0.2s, color 0.2s; }
    .hero-link.primary { background: linear-gradient(135deg, var(--accent), var(--accent3)); color: #fff; box-shadow: 0 8px 30px var(--accent-glow); }
    .hero-link.primary:hover { transform: translateY(-3px); box-shadow: 0 14px 40px var(--accent-glow); }
    .hero-link.secondary { background: rgba(28,28,40,0.6); color: var(--text2); border: 1px solid var(--border); backdrop-filter: blur(6px); }
    .hero-link.secondary:hover { color: var(--text); transform: translateY(-3px); border-color: var(--accent2); }
    .hero-link::before { content: ''; position: absolute; top: 0; left: -120%; width: 55%; height: 100%; background: linear-gradient(120deg, transparent, rgba(255,255,255,0.25), transparent); transform: skewX(-20deg); transition: left 0.6s; }
    .hero-link:hover::before { left: 150%; }

    .float-chips { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
    .chip { position: absolute; padding: 0.5rem 0.9rem; border-radius: 12px; background: rgba(28,28,40,0.55); border: 1px solid var(--border); backdrop-filter: blur(8px); font-size: 0.82rem; font-weight: 600; color: var(--text2); display: flex; align-items: center; gap: 0.45rem; box-shadow: 0 10px 30px rgba(0,0,0,0.3); will-change: transform; }
    .chip i { font-style: normal; font-size: 1rem; }
    .chip.c1 { top: 20%; left: 8%; animation: floaty 7s var(--ease) infinite; }
    .chip.c2 { top: 32%; right: 7%; animation: floaty 8s var(--ease) infinite 0.6s; }
    .chip.c3 { bottom: 26%; left: 12%; animation: floaty 9s var(--ease) infinite 1.2s; }
    .chip.c4 { bottom: 30%; right: 10%; animation: floaty 7.5s var(--ease) infinite 0.3s; }
    @keyframes floaty { 0%,100%{transform:translateY(0) rotate(-2deg)} 50%{transform:translateY(-18px) rotate(2deg)} }
    @media (max-width: 860px) { .float-chips { display: none; } }

    .hero-scroll { margin-top: 3.5rem; color: var(--text3); font-size: 0.78rem; display: flex; flex-direction: column; align-items: center; gap: 0.5rem; }
    .hero-scroll-line { width: 1px; height: 46px; background: linear-gradient(to bottom, var(--accent2), transparent); animation: scrollLine 2s ease-in-out infinite; }
    @keyframes scrollLine { 0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom} }

    /* ===== Marquee ===== */
    .marquee { position: relative; padding: 1.4rem 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--bg2); overflow: hidden;
      -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
      mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
    .marquee-track { display: flex; gap: 3rem; width: max-content; animation: marquee 28s linear infinite; }
    .marquee:hover .marquee-track { animation-play-state: paused; }
    .marquee-track span { font-family: var(--display); font-weight: 600; font-size: 1.1rem; color: var(--text3); display: flex; align-items: center; gap: 3rem; white-space: nowrap; }
    .marquee-track span::after { content: '✦'; color: var(--accent2); font-size: 0.8rem; }
    @keyframes marquee { to { transform: translateX(-50%); } }

    /* ===== SECTIONS ===== */
    section { padding: 6.5rem 2rem; position: relative; }
    .container { max-width: 1100px; margin: 0 auto; }
    .section-label { display: inline-block; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent2); margin-bottom: 0.75rem; }
    .section-title { font-family: var(--display); font-size: clamp(1.9rem, 4vw, 2.9rem); font-weight: 700; letter-spacing: -0.02em; margin-bottom: 1rem; }
    .section-sub { color: var(--text2); font-size: 1rem; max-width: 520px; line-height: 1.7; }
    .section-divider { width: 64px; height: 3px; background: linear-gradient(90deg, var(--accent), var(--accent3)); border-radius: 2px; margin: 1rem 0 2rem; }

    /* ===== STATS ===== */
    #stats { padding: 3.5rem 2rem; }
    .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
    .stat { position: relative; text-align: center; padding: 2rem 1rem; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: transform 0.3s var(--ease), border-color 0.3s; }
    .stat::before { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 50% 0%, var(--accent-glow), transparent 70%); opacity: 0; transition: opacity 0.3s; }
    .stat:hover { transform: translateY(-5px); border-color: var(--accent2); }
    .stat:hover::before { opacity: 1; }
    .stat-num { font-family: var(--display); font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 700; line-height: 1;
      background: linear-gradient(135deg, var(--accent2), var(--accent4)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .stat-label { font-size: 0.82rem; color: var(--text2); margin-top: 0.6rem; font-weight: 500; }
    @media (max-width: 720px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }

    /* ===== Glow card spotlight (shared) ===== */
    .glow-card { position: relative; }
    .glow-card::after { content: ''; position: absolute; inset: 0; border-radius: inherit; opacity: 0; transition: opacity 0.3s; pointer-events: none;
      background: radial-gradient(280px circle at var(--mx, 50%) var(--my, 50%), rgba(168,85,247,0.14), transparent 60%); }
    .glow-card:hover::after { opacity: 1; }

    /* ===== ABOUT ===== */
    #about { background: var(--bg2); }
    .about-grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: 4rem; align-items: center; margin-top: 3rem; }
    .about-avatar { aspect-ratio: 1; border-radius: 28px; max-width: 320px; background: linear-gradient(135deg, var(--accent), var(--accent3)); display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden; animation: floaty 8s var(--ease) infinite; }
    .about-avatar::before { content: ''; position: absolute; inset: -50%; background: conic-gradient(from 0deg, transparent, rgba(255,255,255,0.18), transparent 30%); animation: spin 6s linear infinite; }
    @keyframes spin { to { transform: rotate(360deg); } }
    .about-avatar-inner { position: absolute; inset: 4px; border-radius: 24px; background: var(--surface); display: flex; align-items: center; justify-content: center; font-size: 5rem; z-index: 1; }
    .about-text p { color: var(--text2); margin-bottom: 1rem; line-height: 1.8; }
    .about-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.5rem; }
    .about-tag { padding: 0.4rem 0.9rem; background: var(--surface); border: 1px solid var(--border); border-radius: 100px; font-size: 0.8rem; color: var(--text2); font-weight: 500; transition: all 0.2s var(--ease); }
    .about-tag:hover { transform: translateY(-2px); border-color: var(--accent2); color: var(--text); }
    .about-tag.h { background: rgba(124,58,237,0.15); border-color: rgba(124,58,237,0.4); color: var(--accent2); }

    /* ===== SKILLS ===== */
    #skills { background: var(--bg); }
    .skills-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 1rem; margin-top: 3rem; }
    .skill-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.6rem 1.25rem; text-align: center; transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s; cursor: default; }
    .skill-card:hover { border-color: var(--accent); transform: translateY(-6px); box-shadow: 0 14px 40px var(--accent-glow); }
    .skill-icon { font-size: 2.3rem; margin-bottom: 0.75rem; display: block; transition: transform 0.3s var(--ease); }
    .skill-card:hover .skill-icon { transform: scale(1.2) rotate(-6deg); }
    .skill-name { font-size: 0.86rem; font-weight: 700; color: var(--text); }
    .skill-level { font-size: 0.72rem; color: var(--text3); margin-top: 0.25rem; }

    /* ===== PROJECTS ===== */
    #projects { background: var(--bg2); }
    .projects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.5rem; margin-top: 3rem; }
    .project-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s; position: relative; overflow: hidden; text-decoration: none; color: inherit; display: flex; flex-direction: column; gap: 1rem; }
    .project-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--accent), var(--accent2)); transform: scaleX(0); transform-origin: left; transition: transform 0.35s var(--ease); z-index: 1; }
    .project-card:hover::before { transform: scaleX(1); }
    .project-card:hover { transform: translateY(-6px); border-color: var(--accent); box-shadow: 0 20px 50px rgba(0,0,0,0.4); }
    .project-emoji { font-size: 2.6rem; transition: transform 0.3s var(--ease); }
    .project-card:hover .project-emoji { transform: scale(1.15) rotate(-8deg); }
    .project-name { font-size: 1.2rem; font-weight: 700; }
    .project-desc { color: var(--text2); font-size: 0.9rem; line-height: 1.6; flex: 1; }
    .project-link-label { display: flex; align-items: center; gap: 0.375rem; color: var(--accent2); font-size: 0.82rem; font-weight: 600; margin-top: auto; }
    .project-card:hover .project-link-label { gap: 0.7rem; }

    /* ===== TOOLS ===== */
    #tools { background: var(--bg); }
    .tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.25rem; margin-top: 3rem; }
    .tool-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.75rem; transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s; position: relative; overflow: hidden; text-decoration: none; color: inherit; display: flex; flex-direction: column; gap: 0.75rem; }
    .tool-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--green), #34d399); transform: scaleX(0); transform-origin: left; transition: transform 0.35s var(--ease); z-index: 1; }
    .tool-card:hover::before { transform: scaleX(1); }
    .tool-card:hover { transform: translateY(-6px); border-color: rgba(16,185,129,0.5); box-shadow: 0 18px 50px rgba(16,185,129,0.14); }
    .tool-card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 0.75rem; }
    .tool-emoji { font-size: 2rem; line-height: 1; transition: transform 0.3s var(--ease); }
    .tool-card:hover .tool-emoji { transform: scale(1.18) rotate(-6deg); }
    .tool-badge { padding: 0.2rem 0.6rem; background: rgba(16,185,129,0.12); border: 1px solid rgba(16,185,129,0.35); border-radius: 100px; font-size: 0.68rem; font-weight: 700; color: var(--green); text-transform: uppercase; letter-spacing: 0.06em; flex-shrink: 0; }
    .tool-name { font-size: 1.05rem; font-weight: 700; }
    .tool-desc { color: var(--text2); font-size: 0.875rem; line-height: 1.6; flex: 1; }
    .tool-link-label { display: flex; align-items: center; gap: 0.375rem; color: var(--green); font-size: 0.82rem; font-weight: 600; margin-top: auto; transition: gap 0.25s; }
    .tool-card:hover .tool-link-label { gap: 0.7rem; }
    .tool-url { color: var(--text3); font-size: 0.75rem; font-family: ui-monospace, monospace; margin-top: 0.25rem; }

    /* ===== APPS ===== */
    #apps { background: var(--bg2); }
    .apps-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1.5rem; margin-top: 3rem; }
    .app-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; display: flex; gap: 1.5rem; align-items: flex-start; transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s; position: relative; overflow: hidden; }
    .app-card:hover { border-color: var(--accent); transform: translateY(-5px); box-shadow: 0 16px 44px rgba(0,0,0,0.4); }
    .app-icon { width: 64px; height: 64px; border-radius: 16px; flex-shrink: 0; background: linear-gradient(135deg, #7c3aed, #a855f7); display: flex; align-items: center; justify-content: center; font-size: 2rem; transition: transform 0.3s var(--ease); }
    .app-card:hover .app-icon { transform: scale(1.1) rotate(-5deg); }
    .app-icon.plaka { background: linear-gradient(135deg, #0891b2, #06b6d4); }
    .app-icon.moment { background: linear-gradient(135deg, #f59e0b, #ef4444); }
    .app-name { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.25rem; }
    .app-platform { font-size: 0.75rem; color: var(--accent2); font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 0.5rem; }
    .app-desc { color: var(--text2); font-size: 0.875rem; line-height: 1.6; margin-bottom: 1rem; }
    .app-btns { display: flex; flex-wrap: wrap; gap: 0.625rem; }
    .app-btn { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.6rem 1.25rem; background: var(--accent); color: #fff; border-radius: 8px; text-decoration: none; font-size: 0.8rem; font-weight: 700; transition: all 0.2s var(--ease); }
    .app-btn:hover { background: var(--accent2); transform: translateY(-2px); }
    .app-btn.ios { background: #1c1c28; border: 1px solid var(--border); }
    .app-btn.ios:hover { background: #242435; border-color: var(--accent); }

    /* ===== YOUTUBE ===== */
    #youtube { background: var(--bg); }
    .yt-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 3rem; display: flex; gap: 3rem; align-items: center; margin-top: 3rem; transition: border-color 0.3s, box-shadow 0.3s; position: relative; overflow: hidden; }
    .yt-card:hover { border-color: #ef4444; box-shadow: 0 8px 40px rgba(239,68,68,0.15); }
    .yt-icon { width: 90px; height: 90px; flex-shrink: 0; border-radius: 20px; background: linear-gradient(135deg, #ef4444, #dc2626); display: flex; align-items: center; justify-content: center; font-size: 2.8rem; box-shadow: 0 0 0 0 rgba(239,68,68,0.5); animation: ytPulse 2.5s var(--ease) infinite; }
    @keyframes ytPulse { 0%{box-shadow:0 0 0 0 rgba(239,68,68,0.45)} 70%{box-shadow:0 0 0 22px rgba(239,68,68,0)} 100%{box-shadow:0 0 0 0 rgba(239,68,68,0)} }
    .yt-handle { font-size: 0.8rem; color: var(--text3); font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 0.5rem; }
    .yt-title { font-size: 1.6rem; font-weight: 800; margin-bottom: 0.75rem; }
    .yt-desc { color: var(--text2); line-height: 1.7; margin-bottom: 1.5rem; }
    .yt-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.5rem; }
    .yt-tag { padding: 0.25rem 0.75rem; background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); border-radius: 100px; font-size: 0.78rem; color: #f87171; font-weight: 500; }
    .yt-btn { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.8rem 1.8rem; background: #ef4444; color: #fff; border-radius: 10px; text-decoration: none; font-weight: 700; font-size: 0.9rem; transition: all 0.2s var(--ease); }
    .yt-btn:hover { background: #dc2626; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(239,68,68,0.35); }

    /* ===== CONTACT ===== */
    #contact { background: var(--bg); text-align: center; }
    .contact-inner { max-width: 600px; margin: 3rem auto 0; }
    .contact-email { display: inline-flex; align-items: center; gap: 0.75rem; padding: 1rem 2rem; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; color: var(--text); text-decoration: none; font-size: 1.05rem; font-weight: 600; transition: all 0.3s var(--ease); margin: 2rem 0; }
    .contact-email:hover { border-color: var(--accent); background: var(--surface2); transform: translateY(-3px); box-shadow: 0 10px 36px var(--accent-glow); }
    .contact-socials { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
    .contact-social { display: flex; align-items: center; gap: 0.5rem; padding: 0.65rem 1.3rem; background: var(--surface); border: 1px solid var(--border); border-radius: 9px; color: var(--text2); text-decoration: none; font-size: 0.875rem; font-weight: 500; transition: all 0.2s var(--ease); }
    .contact-social:hover { background: var(--surface2); color: var(--text); border-color: var(--accent2); transform: translateY(-2px); }

    /* ===== FOOTER ===== */
    footer { background: var(--bg2); border-top: 1px solid var(--border); padding: 2.5rem 2rem; text-align: center; }
    .footer-links { display: flex; gap: 1.5rem; justify-content: center; flex-wrap: wrap; margin-bottom: 1.25rem; }
    .footer-links a { color: var(--text3); text-decoration: none; font-size: 0.875rem; transition: color 0.2s; }
    .footer-links a:hover { color: var(--text); }
    .footer-copy { color: var(--text3); font-size: 0.8rem; }

    /* ===== Back to top ===== */
    .to-top { position: fixed; bottom: 24px; right: 24px; z-index: 90; width: 46px; height: 46px; border-radius: 12px; border: 1px solid var(--border); background: rgba(28,28,40,0.8); backdrop-filter: blur(10px); color: var(--text); font-size: 1.1rem; cursor: pointer; opacity: 0; transform: translateY(16px) scale(0.9); pointer-events: none; transition: all 0.3s var(--ease); display: flex; align-items: center; justify-content: center; }
    .to-top.show { opacity: 1; transform: none; pointer-events: auto; }
    .to-top:hover { border-color: var(--accent2); background: var(--surface2); transform: translateY(-3px); }

    /* ===== REVEAL ANIMATIONS ===== */
    .reveal { opacity: 0; transform: translateY(36px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); will-change: opacity, transform; }
    .reveal.visible { opacity: 1; transform: none; }
    .reveal-left { opacity: 0; transform: translateX(-40px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
    .reveal-left.visible { opacity: 1; transform: none; }
    .reveal-right { opacity: 0; transform: translateX(40px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
    .reveal-right.visible { opacity: 1; transform: none; }
    .reveal-scale { opacity: 0; transform: scale(0.92); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
    .reveal-scale.visible { opacity: 1; transform: none; }
    .reveal-d1 { transition-delay: 0.08s; }
    .reveal-d2 { transition-delay: 0.16s; }
    .reveal-d3 { transition-delay: 0.24s; }
    .reveal-d4 { transition-delay: 0.32s; }
    .reveal-d5 { transition-delay: 0.40s; }

    /* hero entrance stagger */
    .hero-anim { opacity: 0; transform: translateY(28px); animation: heroUp 0.9s var(--ease) forwards; }
    .hero-anim.d1 { animation-delay: 0.15s; }
    .hero-anim.d2 { animation-delay: 0.3s; }
    .hero-anim.d3 { animation-delay: 0.45s; }
    .hero-anim.d4 { animation-delay: 0.6s; }
    .hero-anim.d5 { animation-delay: 0.78s; }
    @keyframes heroUp { to { opacity: 1; transform: none; } }

    /* ===== RESPONSIVE ===== */
    @media (max-width: 768px) {
      nav { padding: 0.9rem 1.25rem; }
      nav.scrolled { padding: 0.7rem 1.25rem; }
      .nav-links { display: none !important; }
      .hamburger { display: flex; }
      .about-grid { grid-template-columns: 1fr; gap: 2rem; }
      .about-avatar { max-width: 200px; margin: 0 auto; }
      .yt-card { flex-direction: column; gap: 1.5rem; padding: 2rem; text-align: center; }
      .yt-icon { margin: 0 auto; }
    }
    @media (max-width: 480px) {
      .skills-grid { grid-template-columns: repeat(2, 1fr); }
      section { padding: 4.5rem 1.25rem; }
      .projects-grid, .tools-grid { grid-template-columns: 1fr; }
      .stats-grid { gap: 0.75rem; }
    }

    /* ===== Particle constellation canvas ===== */
    #particles { position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.6; }

    /* ===== Custom cursor ===== */
    .cursor-dot, .cursor-ring { position: fixed; top: 0; left: 0; z-index: 9999; pointer-events: none; border-radius: 50%; transform: translate(-50%, -50%); mix-blend-mode: difference; }
    .cursor-dot { width: 7px; height: 7px; background: #fff; }
    .cursor-ring { width: 34px; height: 34px; border: 1.5px solid rgba(255,255,255,0.6); transition: width 0.22s var(--ease), height 0.22s var(--ease), background 0.22s, border-color 0.22s; }
    .cursor-ring.hovering { width: 56px; height: 56px; background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.9); }
    .cursor-ring.clicking { width: 26px; height: 26px; }
    body.has-cursor, body.has-cursor a, body.has-cursor button, body.has-cursor .skill-card { cursor: none; }

    /* ===== 3D tilt ===== */
    .tilt { transform-style: preserve-3d; transition: transform 0.18s var(--ease); will-change: transform; }
    .tilt-inner { transform: translateZ(40px); transition: transform 0.18s var(--ease); }

    /* ===== Hero name letter reveal ===== */
    .hero-name .ltr { display: inline-block; opacity: 0; transform: translateY(0.5em) rotate(8deg); animation: ltrIn 0.7s var(--ease) forwards; }
    @keyframes ltrIn { to { opacity: 1; transform: none; } }

    /* ===== Section title shimmer on reveal ===== */
    .section-title.shimmer.visible { background: linear-gradient(100deg, var(--text) 30%, var(--accent2) 50%, var(--text) 70%); background-size: 200% auto; -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; animation: titleShine 2.4s var(--ease) 1; }
    @keyframes titleShine { from { background-position: 180% center; } to { background-position: -20% center; } }

    /* ===== Reveal blur variant ===== */
    .reveal-blur { opacity: 0; filter: blur(14px); transform: translateY(24px) scale(0.98); transition: opacity 0.8s var(--ease), filter 0.8s var(--ease), transform 0.8s var(--ease); }
    .reveal-blur.visible { opacity: 1; filter: none; transform: none; }

    /* ===== Ripple ===== */
    .ripple-host { position: relative; overflow: hidden; }
    .ripple { position: absolute; border-radius: 50%; transform: translate(-50%, -50%) scale(0); background: rgba(255,255,255,0.45); pointer-events: none; animation: rippleOut 0.6s ease-out forwards; }
    @keyframes rippleOut { to { transform: translate(-50%, -50%) scale(1); opacity: 0; } }

    /* ===== Animated gradient border on cards ===== */
    .skill-card, .project-card, .tool-card, .app-card, .stat { position: relative; }
    .skill-card::after, .project-card::after, .tool-card::after, .app-card::after { content: ''; position: absolute; inset: -1px; border-radius: inherit; padding: 1px; background: linear-gradient(130deg, transparent, var(--accent2), var(--accent3), transparent); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0; transition: opacity 0.35s var(--ease); pointer-events: none; }
    .skill-card:hover::after, .project-card:hover::after, .tool-card:hover::after, .app-card:hover::after { opacity: 0.9; }

    /* ===== Marquee gradient sweep on hover ===== */
    .marquee-track span:hover { color: var(--accent2); transition: color 0.2s; }

    /* ===== Scroll-float chips parallax helper ===== */
    .float-chips .chip { transition: transform 0.1s linear; }

    /* ===== Reduced motion ===== */
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
      .reveal, .reveal-left, .reveal-right, .reveal-scale, .reveal-blur, .hero-anim { opacity: 1 !important; transform: none !important; filter: none !important; }
      .orb, .spotlight, .float-chips, #particles, .cursor-dot, .cursor-ring { display: none !important; }
      .hero-name .ltr { opacity: 1 !important; transform: none !important; }
    }
    @media (pointer: coarse) {
      #particles, .cursor-dot, .cursor-ring { display: none !important; }
    }