@font-face { font-family: 'JetBrains Mono'; src: url('/static/fonts/JetBrainsMono-Regular.woff2') format('woff2'); font-weight: 400; font-style: normal; font-display: swap; }
    @font-face { font-family: 'JetBrains Mono'; src: url('/static/fonts/JetBrainsMono-Regular.woff2') format('woff2'); font-weight: 400; font-style: italic; font-display: swap; }
    @font-face { font-family: 'JetBrains Mono'; src: url('/static/fonts/JetBrainsMono-Bold.woff2') format('woff2'); font-weight: 700; font-style: normal; font-display: swap; }
    @font-face { font-family: 'Inter'; src: url('/static/fonts/Inter.woff2') format('woff2'); font-weight: 100 900; font-style: normal; font-display: swap; }

    :root {
      --bg:      #0d0f14;
      --surface: #161b22;
      --border:  #21262d;
      --accent:  #00d9ff;
      --green:   #7ee787;
      --text:    #e6edf3;
      --muted:   #8b949e;
    }

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }

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

    body::after {
      content: '';
      position: fixed;
      inset: 0;
      background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.04) 2px, rgba(0,0,0,0.04) 4px);
      pointer-events: none;
      z-index: 9999;
    }

    nav {
      position: fixed;
      top: 0; width: 100%;
      padding: 1rem 2.5rem;
      background: rgba(13,15,20,0.9);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
      display: flex;
      justify-content: space-between;
      align-items: center;
      z-index: 100;
    }
    .nav-logo { font-family: 'JetBrains Mono', monospace; font-size: 1.2rem; color: var(--accent); text-decoration: none; }
    .nav-logo .blink { animation: blink 1s step-end infinite; }
    @keyframes blink { 50% { opacity: 0; } }

    .nav-right { display: flex; align-items: center; gap: 1.5rem; }
    .nav-links { display: flex; gap: 2rem; list-style: none; }
    .nav-links a { color: var(--muted); text-decoration: none; font-family: 'JetBrains Mono', monospace; font-size: 0.85rem; transition: color 0.2s; }
    .nav-links a:hover { color: var(--accent); }
    .nav-links a.active { color: var(--accent); }
    .nav-links a.active::before { content: '> '; color: var(--green); }

    .lang-switch { display: flex; align-items: center; gap: 0.3rem; flex-shrink: 0; }
    .lang-btn {
      background: none;
      border: 1px solid var(--border);
      color: var(--muted);
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.72rem;
      padding: 0.18rem 0.45rem;
      border-radius: 3px;
      cursor: pointer;
      transition: all 0.2s;
    }
    .lang-btn:hover { border-color: var(--accent); color: var(--accent); }
    .lang-btn.active { border-color: var(--accent); color: var(--accent); background: rgba(0,217,255,0.08); }
    .lang-sep { color: var(--border); font-size: 0.7rem; }

    /* Language content toggle */
    body:not(.lang-en) .lang-en { display: none; }
    body.lang-en .lang-de { display: none; }

    #hero { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; padding: 8rem 2.5rem 4rem; max-width: 960px; margin: 0 auto; }
    .hero-prompt { font-family: 'JetBrains Mono', monospace; font-size: 0.9rem; color: var(--muted); margin-bottom: 1rem; }
    .hero-prompt::before { content: '$ '; color: var(--green); }
    .hero-title { font-family: 'JetBrains Mono', monospace; font-size: clamp(2.8rem, 8vw, 6rem); font-weight: 700; line-height: 1.1; margin-bottom: 1.25rem; }
    .hero-title .greeting { color: var(--muted); font-weight: 400; display: block; }
    .hero-title .name     { color: var(--accent); text-shadow: 0 0 40px rgba(0,217,255,0.35); }
    .hero-title .cursor   { color: var(--accent); animation: blink 1s step-end infinite; }
    .hero-sub { font-family: 'JetBrains Mono', monospace; font-size: 1.05rem; color: var(--muted); margin-bottom: 2.5rem; }
    .hero-sub::before { content: '// '; color: var(--border); }
    .hero-badges { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-bottom: 3rem; }
    .badge { padding: 0.35rem 0.85rem; border: 1px solid var(--border); border-radius: 3px; font-family: 'JetBrains Mono', monospace; font-size: 0.78rem; color: var(--green); background: rgba(126,231,135,0.05); transition: all 0.2s; }
    .badge:hover { border-color: var(--green); background: rgba(126,231,135,0.1); }
    .hero-cta { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.8rem 2rem; border: 1px solid var(--accent); color: var(--accent); text-decoration: none; font-family: 'JetBrains Mono', monospace; font-size: 0.9rem; border-radius: 3px; transition: all 0.2s; width: fit-content; }
    .hero-cta:hover { background: var(--accent); color: var(--bg); box-shadow: 0 0 20px rgba(0,217,255,0.3); }

    .section-wrap { padding: 6rem 2.5rem; max-width: 960px; margin: 0 auto; }
    .section-label { font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; color: var(--accent); letter-spacing: 0.1em; margin-bottom: 0.4rem; }
    .section-label::before { content: '// '; }
    .section-title { font-size: 1.9rem; font-weight: 600; margin-bottom: 2.5rem; }

    .about-card { background: var(--surface); border: 1px solid var(--border); border-left: 3px solid var(--accent); padding: 2rem 2.5rem; border-radius: 0 8px 8px 0; }
    .about-text { font-size: 1.1rem; color: var(--muted); line-height: 1.9; }
    .about-text strong { color: var(--text); }

    .about-layout { display: grid; grid-template-columns: 1fr auto; gap: 3rem; align-items: start; }
    .about-avatar-wrap { display: flex; flex-direction: column; align-items: center; gap: 0.6rem; flex-shrink: 0; }
    .about-avatar-label { font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: var(--muted); letter-spacing: 0.08em; }
    .about-avatar-label::before { content: '> '; color: var(--green); }
    .about-avatar {
      width: 160px; height: 160px;
      border-radius: 50%;
      object-fit: cover;
      object-position: center top;
      border: 2px solid var(--accent);
      box-shadow: 0 0 0 4px rgba(0,217,255,0.08), 0 0 30px rgba(0,217,255,0.25), 0 0 60px rgba(0,217,255,0.1);
      filter: saturate(0.9);
      transition: box-shadow 0.3s, filter 0.3s;
      position: relative;
    }
    .about-avatar:hover {
      box-shadow: 0 0 0 4px rgba(0,217,255,0.15), 0 0 40px rgba(0,217,255,0.4), 0 0 80px rgba(0,217,255,0.15);
      filter: saturate(1.1);
    }
    .about-avatar-status { display: flex; align-items: center; gap: 0.4rem; font-family: 'JetBrains Mono', monospace; font-size: 0.68rem; color: var(--green); }
    .about-avatar-status::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--green); box-shadow: 0 0 6px var(--green); animation: pulse 2s ease-in-out infinite; display: inline-block; }
    @keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

    @media (max-width: 640px) {
      .about-layout { grid-template-columns: 1fr; grid-template-rows: auto auto; }
      .about-avatar-wrap { flex-direction: row; justify-content: flex-start; align-items: center; gap: 1rem; order: -1; margin-bottom: 1rem; }
      .about-avatar { width: 80px; height: 80px; }
    }

    /* PROJECTS */
    .projects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(420px, 1fr)); gap: 1.5rem; }
    .project-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: 1.75rem 2rem;
      position: relative;
      overflow: hidden;
      transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
    }
    .project-card:hover {
      border-color: var(--accent);
      transform: translateY(-3px);
      box-shadow: 0 8px 30px rgba(0,217,255,0.08);
    }
    .project-card::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 2px;
      background: linear-gradient(90deg, var(--accent), var(--green));
      opacity: 0;
      transition: opacity 0.25s;
    }
    .project-card:hover::before { opacity: 1; }
    .project-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 1rem; gap: 1rem; }
    .project-name { font-family: 'JetBrains Mono', monospace; font-size: 1.05rem; font-weight: 700; color: var(--text); }
    .project-name::before { content: '~/'; color: var(--muted); font-weight: 400; }
    .project-status {
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.68rem;
      padding: 0.2rem 0.55rem;
      border-radius: 3px;
      white-space: nowrap;
      flex-shrink: 0;
    }
    .status-running { color: var(--green); background: rgba(126,231,135,0.08); border: 1px solid rgba(126,231,135,0.25); }
    .status-wip     { color: #f0a84b;      background: rgba(240,168,75,0.08);   border: 1px solid rgba(240,168,75,0.25); }
    .status-done    { color: var(--muted); background: rgba(139,148,158,0.08);  border: 1px solid rgba(139,148,158,0.2); }
    .status-archived{ color: var(--muted); background: transparent; border: 1px dashed rgba(139,148,158,0.3); opacity: 0.7; }
    .project-desc { font-size: 0.95rem; color: var(--muted); line-height: 1.75; margin-bottom: 1.25rem; }
    .project-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
    .project-tag { font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: var(--accent); background: rgba(0,217,255,0.06); border: 1px solid rgba(0,217,255,0.15); padding: 0.18rem 0.55rem; border-radius: 3px; }

    @media (max-width: 640px) { .projects-grid { grid-template-columns: 1fr; } }

    /* STACK */
    .stack-intro { font-family: 'JetBrains Mono', monospace; font-size: 0.9rem; color: var(--muted); margin-bottom: 3rem; line-height: 1.8; }
    .stack-intro strong { color: var(--text); }
    .stack-category { margin-bottom: 3rem; }
    .stack-category-title {
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.75rem;
      color: var(--green);
      letter-spacing: 0.12em;
      text-transform: uppercase;
      margin-bottom: 1rem;
      padding-bottom: 0.5rem;
      border-bottom: 1px solid var(--border);
    }
    .stack-category-title::before { content: '# '; opacity: 0.5; }
    .stack-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 0.75rem; }
    .stack-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 6px;
      padding: 0.9rem 1.1rem;
      display: flex;
      flex-direction: column;
      gap: 0.3rem;
      transition: border-color 0.2s, transform 0.2s;
      position: relative;
      overflow: hidden;
    }
    .stack-card:hover { border-color: var(--accent); transform: translateY(-2px); }
    .stack-card::after {
      content: '';
      position: absolute;
      top: 0; left: 0;
      width: 3px; height: 100%;
      background: var(--accent);
      opacity: 0;
      transition: opacity 0.2s;
    }
    .stack-card:hover::after { opacity: 1; }
    .stack-name { font-family: 'JetBrains Mono', monospace; font-size: 0.85rem; font-weight: 700; color: var(--text); }
    .stack-desc { font-size: 0.78rem; color: var(--muted); line-height: 1.4; }
    .stack-dot { display: inline-block; width: 5px; height: 5px; border-radius: 50%; background: var(--green); box-shadow: 0 0 5px var(--green); margin-right: 0.4rem; vertical-align: middle; animation: pulse 2s ease-in-out infinite; flex-shrink: 0; }

    @media (max-width: 640px) { .stack-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); } }

    /* CONTACT */
    .contact-qr-wrap { display: flex; flex-direction: column; align-items: center; gap: 1.25rem; }
    .contact-qr-link { display: flex; flex-direction: column; align-items: center; gap: 1rem; text-decoration: none; }
    .contact-qr-box {
      padding: 1.25rem;
      background: #fff;
      border-radius: 8px;
      border: 2px solid var(--accent);
      box-shadow: 0 0 30px rgba(0,217,255,0.2), 0 0 60px rgba(0,217,255,0.08);
      transition: box-shadow 0.3s, transform 0.3s;
    }
    .contact-qr-link:hover .contact-qr-box {
      box-shadow: 0 0 40px rgba(0,217,255,0.4), 0 0 80px rgba(0,217,255,0.15);
      transform: translateY(-3px);
    }
    .contact-qr-label {
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.85rem;
      color: var(--accent);
      letter-spacing: 0.08em;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .contact-qr-label::before { content: '→ '; color: var(--green); }
    .contact-qr-hint { font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; color: var(--muted); text-align: center; }
    .contact-email-direct {
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.85rem;
      color: var(--muted);
      text-decoration: none;
      border: 1px solid var(--border);
      padding: 0.5rem 1rem;
      border-radius: 4px;
      transition: border-color 0.2s, color 0.2s;
    }
    .contact-email-direct:hover { color: var(--accent); border-color: var(--accent); }

    .quotes-grid { display: grid; gap: 1.25rem; }
    .quote-card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 1.75rem 2rem 1.75rem 2.5rem; position: relative; overflow: hidden; transition: border-color 0.2s, transform 0.2s; }
    .quote-card:hover { border-color: var(--accent); transform: translateX(4px); }
    .quote-card::before { content: '"'; position: absolute; top: -1.5rem; left: 0.75rem; font-size: 7rem; color: var(--accent); opacity: 0.07; font-family: Georgia, serif; line-height: 1; }
    .quote-text { font-family: 'JetBrains Mono', monospace; font-size: 1rem; color: var(--green); font-style: italic; position: relative; z-index: 1; }

    #philosophy { padding: 0 2.5rem 6rem; }
    .philosophy-box { max-width: 960px; margin: 0 auto; border: 1px solid var(--border); border-radius: 10px; padding: 4rem 3rem; text-align: center; background: linear-gradient(135deg, rgba(0,217,255,0.03), rgba(126,231,135,0.03)); position: relative; overflow: hidden; }
    .philosophy-box::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 50% 0%, rgba(0,217,255,0.07), transparent 70%); }
    .philosophy-main { font-family: 'JetBrains Mono', monospace; font-size: clamp(1.5rem, 4vw, 2.5rem); font-weight: 700; color: var(--accent); text-shadow: 0 0 30px rgba(0,217,255,0.35); position: relative; z-index: 1; margin-bottom: 1rem; }
    .philosophy-sub { font-family: 'JetBrains Mono', monospace; font-size: 0.9rem; color: var(--muted); position: relative; z-index: 1; }

    /* LEGAL PAGES */
    .legal-card { background: var(--surface); border: 1px solid var(--border); border-left: 3px solid var(--accent); padding: 2rem 2.5rem; border-radius: 0 8px 8px 0; }
    .legal-block-title { font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; color: var(--accent); letter-spacing: 0.06em; margin-bottom: 0.6rem; margin-top: 0; }
    .legal-block-title::before { content: '## '; opacity: 0.5; }
    .legal-text { font-size: 0.92rem; color: var(--muted); line-height: 1.8; }
    .legal-text a { color: var(--accent); }
    .legal-text strong { color: var(--text); }

    /* COOKIE BANNER */
    #cookie-banner {
      position: fixed;
      bottom: 1.5rem;
      left: 50%;
      transform: translateX(-50%);
      width: min(560px, calc(100vw - 2rem));
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: 1.25rem 1.5rem;
      z-index: 9000;
      box-shadow: 0 8px 32px rgba(0,0,0,0.5);
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }
    #cookie-banner.hidden { display: none; }
    .cookie-label { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; color: var(--accent); letter-spacing: 0.1em; margin-bottom: 0.15rem; }
    .cookie-label::before { content: '// '; }
    .cookie-text { font-size: 0.82rem; color: var(--muted); line-height: 1.6; }
    .cookie-text a { color: var(--accent); }
    .cookie-btns { display: flex; gap: 0.75rem; flex-wrap: wrap; }
    .cookie-btn {
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.78rem;
      padding: 0.45rem 1.1rem;
      border-radius: 4px;
      cursor: pointer;
      border: 1px solid var(--border);
      background: none;
      color: var(--muted);
      transition: all 0.2s;
    }
    .cookie-btn:hover { border-color: var(--muted); color: var(--text); }
    .cookie-btn.accept { border-color: var(--accent); color: var(--accent); }
    .cookie-btn.accept:hover { background: var(--accent); color: var(--bg); }

    footer { border-top: 1px solid var(--border); padding: 2.5rem; text-align: center; font-family: 'JetBrains Mono', monospace; font-size: 0.82rem; color: var(--muted); }
    footer .u { color: var(--green); }
    footer .h { color: var(--accent); }
    .footer-copy { margin-top: 0.5rem; }
    .footer-legal { margin-top: 0.6rem; font-size: 0.75rem; }
    .footer-legal a { color: var(--muted); text-decoration: none; opacity: 0.6; transition: opacity 0.2s; }
    .footer-legal a:hover { opacity: 1; }
    .footer-legal-sep { margin: 0 0.5rem; opacity: 0.3; }

    /* HAMBURGER */
    .nav-burger {
      display: none;
      flex-direction: column;
      justify-content: center;
      gap: 5px;
      width: 32px;
      height: 32px;
      cursor: pointer;
      background: none;
      border: none;
      padding: 0;
      z-index: 200;
    }
    .nav-burger span {
      display: block;
      width: 100%;
      height: 2px;
      background: var(--muted);
      border-radius: 2px;
      transition: transform 0.25s, opacity 0.25s, background 0.2s;
      transform-origin: center;
    }
    .nav-burger:hover span { background: var(--accent); }
    .nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); background: var(--accent); }
    .nav-burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
    .nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); background: var(--accent); }

    @media (max-width: 640px) {
      nav { padding: 1rem 1.25rem; }
      .nav-burger { display: flex; }
      .nav-links {
        display: none;
        flex-direction: column;
        gap: 0;
        position: fixed;
        top: 57px; left: 0; right: 0;
        background: rgba(13,15,20,0.97);
        backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--border);
        padding: 0.5rem 0 1rem;
        z-index: 150;
      }
      .nav-links.open { display: flex; }
      .nav-links li { border-bottom: 1px solid var(--border); }
      .nav-links li:last-child { border-bottom: none; }
      .nav-links a {
        display: block;
        padding: 0.9rem 1.5rem;
        font-size: 0.95rem;
      }
      .nav-links a.active::before { content: '> '; }
      .section-wrap { padding: 4rem 1.25rem; }
      #hero { padding: 7rem 1.25rem 3rem; }
      .philosophy-box { padding: 2.5rem 1.5rem; }
      #philosophy { padding: 0 1.25rem 4rem; }
    }