*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    :root {
      --blue: #f01a1a;
      --blue-dark: #c73612;
      --blue-light: #ffeaea;
      --text: #0D1117;
      --text-muted: #6B7280;
      --border: #E5E7EB;
      --bg: #ffffff;
      --bg-soft: #F9FAFB;
      --radius: 12px;
      --radius-lg: 20px;
      --shadow: 0 4px 24px rgba(18,23,37,0.08);
      --shadow-md: 0 8px 40px rgba(240,26,26,0.13);
      --font-display: 'Syne', sans-serif;
      --font-body: 'DM Sans', sans-serif;
      --nav-h: 64px;
    }
    html { scroll-behavior: smooth; }
    body { font-family: var(--font-body); color: var(--text); background: var(--bg); line-height: 1.6; overflow-x: hidden; }

    /* NAVBAR */
    nav { position: fixed; top: 0; left: 0; right: 0; height: var(--nav-h); background: rgba(255,255,255,0.92); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); z-index: 999; display: flex; align-items: center; justify-content: space-between; padding: 0 5%; transition: box-shadow .3s; }
    nav.scrolled { box-shadow: var(--shadow); }
    .nav-logo { font-family: var(--font-display); font-weight: 800; font-size: 1.1rem; color: var(--text); text-decoration: none; letter-spacing: -0.02em; }
    .nav-logo span { color: var(--blue); }
    .nav-links { display: flex; gap: 2rem; list-style: none; }
    .nav-links a { text-decoration: none; color: var(--text-muted); font-size: 0.9rem; font-weight: 500; transition: color .2s; }
    .nav-links a:hover { color: var(--blue); }
    .nav-cta { background: var(--blue); color: #fff !important; padding: 0.5rem 1.2rem; border-radius: 8px; transition: background .2s !important; }
    .nav-cta:hover { background: var(--blue-dark) !important; }
    .nav-burger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
    .nav-burger span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: all .3s; }
    .nav-mobile { display: none; position: fixed; top: var(--nav-h); left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--border); padding: 1.5rem 5%; flex-direction: column; gap: 1rem; z-index: 998; box-shadow: var(--shadow-md); }
    .nav-mobile.open { display: flex; }
    .nav-mobile a { text-decoration: none; color: var(--text); font-size: 1rem; font-weight: 500; padding: 0.5rem 0; border-bottom: 1px solid var(--border); transition: color .2s; }
    .nav-mobile a:hover { color: var(--blue); }

    section { padding: 100px 5% 80px; }
    .container { max-width: 1100px; margin: 0 auto; }

    /* HERO */
    #hero { padding-top: calc(var(--nav-h) + 80px); padding-bottom: 60px; background: linear-gradient(135deg, #fff5f5 0%, #ffffff 60%); min-height: 92vh; display: flex; align-items: center; }
    .hero-inner { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; width: 100%; }
    .hero-badge { display: inline-flex; align-items: center; gap: 8px; background: var(--blue-light); color: var(--blue); font-size: 0.78rem; font-weight: 600; padding: 6px 14px; border-radius: 100px; margin-bottom: 1.2rem; letter-spacing: 0.04em; text-transform: uppercase; }
    .hero-badge::before { content: ''; width: 8px; height: 8px; background: var(--blue); border-radius: 50%; animation: pulse 1.8s infinite; }
    @keyframes pulse { 0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.4)} }
    .hero-title { font-family: var(--font-display); font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.03em; color: var(--text); margin-bottom: 1.2rem; }
    .hero-title .accent { color: var(--blue); }
    .hero-desc { font-size: 1.05rem; color: var(--text-muted); max-width: 480px; margin-bottom: 2rem; line-height: 1.7; }
    .hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
    .btn { display: inline-flex; align-items: center; gap: 8px; padding: 0.75rem 1.6rem; border-radius: 10px; font-family: var(--font-body); font-size: 0.95rem; font-weight: 600; cursor: pointer; transition: all .25s; border: none; text-decoration: none; }
    .btn-primary { background: var(--blue); color: #fff; box-shadow: 0 4px 16px rgba(240,26,26,0.3); }
    .btn-primary:hover { background: var(--blue-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(240,26,26,0.35); }
    .btn-outline { background: transparent; color: var(--text); border: 1.5px solid var(--border); }
    .btn-outline:hover { border-color: var(--blue); color: var(--blue); transform: translateY(-2px); }
    .hero-visual { position: relative; display: flex; justify-content: center; }
    .hero-photo-wrap { position: relative; width: 380px; height: 440px; }
    .hero-photo-bg { position: absolute; inset: 0; background: var(--blue-light); border-radius: var(--radius-lg); transform: rotate(3deg); }
    .hero-photo { position: relative; width: 100%; height: 100%; object-fit: cover; object-position: top center; border-radius: var(--radius-lg); display: block; }
    .hero-stats { position: absolute; bottom: -24px; left: -24px; background: #fff; border-radius: var(--radius); padding: 1rem 1.4rem; box-shadow: var(--shadow-md); display: flex; gap: 1.5rem; }
    .hero-stat-item { text-align: center; }
    .hero-stat-num { font-family: var(--font-display); font-size: 1.5rem; font-weight: 800; color: var(--blue); line-height: 1; }
    .hero-stat-label { font-size: 0.72rem; color: var(--text-muted); white-space: nowrap; }

    /* ABOUT */
    #about { background: #fff; }
    .about-inner { display: grid; grid-template-columns: 1fr 1.2fr; gap: 5rem; align-items: center; }
    .about-image-wrap { position: relative; }
    .about-img { width: 100%; aspect-ratio: 4/5; border-radius: var(--radius-lg); object-fit: cover; object-position: top center; display: block; }
    .about-badge { position: absolute; top: 20px; right: -20px; background: var(--blue); color: #fff; border-radius: var(--radius); padding: 0.8rem 1.1rem; font-size: 0.85rem; font-weight: 600; box-shadow: var(--shadow-md); text-align: center; }
    .about-badge .num { font-family: var(--font-display); font-size: 1.8rem; font-weight: 800; display: block; }
    .section-label { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--blue); margin-bottom: 0.7rem; }
    .section-title { font-family: var(--font-display); font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; color: var(--text); margin-bottom: 1.2rem; }
    .section-desc { color: var(--text-muted); font-size: 1rem; line-height: 1.75; margin-bottom: 1.5rem; }
    .about-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem 1.5rem; margin-top: 1.8rem; }
    .about-meta-item { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; color: var(--text-muted); }
    .about-meta-item .dot { width: 6px; height: 6px; background: var(--blue); border-radius: 50%; flex-shrink: 0; }

    /* SKILLS */
    #skills { background: var(--bg-soft); }
    .skills-header { text-align: center; margin-bottom: 3.5rem; }
    .skills-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
    .skill-card { background: #fff; border-radius: var(--radius); padding: 1.8rem 1.5rem; border: 1px solid var(--border); transition: all .3s; position: relative; overflow: hidden; }
    .skill-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--blue); transform: scaleX(0); transform-origin: left; transition: transform .3s; }
    .skill-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
    .skill-card:hover::before { transform: scaleX(1); }
    .skill-icon { width: 48px; height: 48px; background: var(--blue-light); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; margin-bottom: 1rem; }
    .skill-name { font-family: var(--font-display); font-weight: 700; font-size: 1rem; margin-bottom: 0.4rem; }
    .skill-desc { font-size: 0.82rem; color: var(--text-muted); line-height: 1.5; margin-bottom: 1rem; }
    .skill-tags { display: flex; flex-wrap: wrap; gap: 5px; }
    .skill-tag { font-size: 0.72rem; font-weight: 600; background: var(--blue-light); color: var(--blue); padding: 3px 8px; border-radius: 4px; }

    /* PROJECTS */
    #projects { background: #fff; }
    .projects-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 3rem; flex-wrap: wrap; gap: 1rem; }
    .projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
    .project-card { border-radius: var(--radius-lg); border: 1px solid var(--border); overflow: hidden; transition: all .3s; background: #fff; }
    .project-card:hover { box-shadow: var(--shadow-md); transform: translateY(-6px); }
    .project-img { width: 100%; aspect-ratio: 16/9; display: flex; align-items: center; justify-content: center; font-size: 3.5rem; background: linear-gradient(135deg, var(--blue-light), #ffc4c4); position: relative; overflow: hidden; }
    .project-img-overlay { position: absolute; inset: 0; background: rgba(199,54,18,0.85); display: flex; align-items: center; justify-content: center; gap: 1rem; opacity: 0; transition: opacity .3s; }
    .project-card:hover .project-img-overlay { opacity: 1; }
    .project-img-overlay a { background: #fff; color: var(--blue); padding: 0.5rem 1rem; border-radius: 8px; font-size: 0.82rem; font-weight: 600; text-decoration: none; transition: all .2s; }
    .project-img-overlay a:hover { background: var(--blue); color: #fff; }
    .project-body { padding: 1.4rem; }
    .project-tags { display: flex; gap: 6px; margin-bottom: 0.7rem; flex-wrap: wrap; }
    .project-tag { font-size: 0.7rem; font-weight: 600; background: var(--blue-light); color: var(--blue); padding: 3px 8px; border-radius: 4px; text-transform: uppercase; letter-spacing: 0.04em; }
    .project-title { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; margin-bottom: 0.5rem; }
    .project-desc { font-size: 0.85rem; color: var(--text-muted); line-height: 1.55; }

    /* CONTACT */
    #contact { background: var(--bg-soft); }
    .contact-inner { display: grid; grid-template-columns: 1fr 1.3fr; gap: 5rem; align-items: start; }
    .contact-info-items { margin-top: 2rem; display: flex; flex-direction: column; gap: 1.2rem; }
    .contact-info-item { display: flex; align-items: center; gap: 1rem; font-size: 0.95rem; color: var(--text-muted); }
    .contact-info-icon { width: 44px; height: 44px; background: var(--blue-light); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; flex-shrink: 0; }
    .contact-info-text strong { display: block; color: var(--text); font-weight: 600; font-size: 0.85rem; margin-bottom: 2px; }
    .contact-form { background: #fff; border-radius: var(--radius-lg); padding: 2.5rem; box-shadow: var(--shadow); }
    .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
    .form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 1.1rem; }
    .form-group label { font-size: 0.85rem; font-weight: 600; color: var(--text); }
    .form-group input, .form-group textarea, .form-group select { font-family: var(--font-body); font-size: 0.9rem; color: var(--text); background: var(--bg-soft); border: 1.5px solid var(--border); border-radius: 10px; padding: 0.7rem 1rem; outline: none; transition: border-color .2s, box-shadow .2s; resize: vertical; }
    .form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(240,26,26,0.1); background: #fff; }
    .form-group input.error, .form-group textarea.error, .form-group select.error { border-color: #ef4444; box-shadow: 0 0 0 3px rgba(239,68,68,0.1); }
    .form-group .error-msg { font-size: 0.78rem; color: #ef4444; display: none; }
    .form-group .error-msg.show { display: block; }
    .form-submit { width: 100%; padding: 0.9rem; font-size: 1rem; justify-content: center; margin-top: 0.5rem; }

    /* Notice EmailJS */
    .emailjs-notice { background: var(--blue-light); border: 1px solid #ffc4c4; border-radius: 10px; padding: 0.9rem 1rem; margin-bottom: 1.5rem; font-size: 0.82rem; color: var(--blue-dark); line-height: 1.5; }
    .emailjs-notice strong { display: block; margin-bottom: 4px; }
    .emailjs-notice code { background: rgba(0,0,0,0.07); padding: 1px 5px; border-radius: 4px; font-size: 0.78rem; }

    /* Toast */
    .toast { position: fixed; bottom: 2rem; right: 2rem; background: #1a1a1a; color: #fff; padding: 1rem 1.5rem; border-radius: 12px; font-size: 0.9rem; font-weight: 500; box-shadow: 0 8px 32px rgba(0,0,0,0.2); transform: translateY(120%) scale(0.9); opacity: 0; transition: all .4s cubic-bezier(0.34,1.56,0.64,1); z-index: 9999; display: flex; align-items: center; gap: 10px; max-width: 360px; }
    .toast.show { transform: translateY(0) scale(1); opacity: 1; }
    .toast.success { background: #16a34a; }
    .toast.error-toast { background: #dc2626; }

    /* FOOTER */
    footer { background: var(--text); color: rgba(255,255,255,0.6); padding: 2.5rem 5%; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
    .footer-logo { font-family: var(--font-display); font-weight: 800; font-size: 1rem; color: #fff; }
    .footer-logo span { color: var(--blue); }
    .footer-copy { font-size: 0.82rem; }
    .footer-socials { display: flex; gap: 0.8rem; }
    .footer-socials a { width: 36px; height: 36px; background: rgba(255,255,255,0.08); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.7); text-decoration: none; font-size: 1rem; transition: all .2s; }
    .footer-socials a:hover { background: var(--blue); color: #fff; }

    /* ANIMATIONS */
    .fade-up { opacity: 0; transform: translateY(30px); transition: opacity .6s ease, transform .6s ease; }
    .fade-up.visible { opacity: 1; transform: translateY(0); }
    .fade-up:nth-child(2) { transition-delay: 0.1s; }
    .fade-up:nth-child(3) { transition-delay: 0.2s; }
    .fade-up:nth-child(4) { transition-delay: 0.3s; }

    /* RESPONSIVE */
    @media (max-width: 1024px) {
      .skills-grid { grid-template-columns: repeat(2, 1fr); }
      .projects-grid { grid-template-columns: repeat(2, 1fr); }
      .hero-inner { gap: 2.5rem; }
      .about-inner { gap: 3rem; }
      .contact-inner { gap: 3rem; }
    }
    @media (max-width: 768px) {
      :root { --nav-h: 60px; }
      .nav-links { display: none; }
      .nav-cta { display: none; }
      .nav-burger { display: flex; }
      section { padding: 80px 5% 60px; }
      .hero-inner { grid-template-columns: 1fr; text-align: center; gap: 3rem; }
      .hero-desc { margin: 0 auto 2rem; }
      .hero-actions { justify-content: center; }
      .hero-photo-wrap { width: 280px; height: 320px; margin: 0 auto; }
      .hero-stats { left: 50%; transform: translateX(-50%); white-space: nowrap; }
      .about-inner { grid-template-columns: 1fr; gap: 2.5rem; }
      .about-badge { right: 0; }
      .skills-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
      .projects-grid { grid-template-columns: 1fr; }
      .contact-inner { grid-template-columns: 1fr; gap: 2.5rem; }
      .form-row { grid-template-columns: 1fr; }
      .projects-header { flex-direction: column; align-items: flex-start; }
      footer { flex-direction: column; text-align: center; align-items: center; }
      .toast { left: 1rem; right: 1rem; bottom: 1rem; }
    }
    @media (max-width: 480px) {
      .skills-grid { grid-template-columns: 1fr; }
      .hero-title { font-size: 2rem; }
      .hero-photo-wrap { width: 240px; height: 270px; }
      .contact-form { padding: 1.5rem; }
    }