body {
    margin: 0;
    padding: 24px;
    background: #ffffff;
    color: var(--text);
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
    line-height: 1.6;
}

#vvrtt{color:white;}
    /* ===== Design proměnné ===== */
    :root {
      --bg: #0b0c0f;
      --surface: #ffffff;
      --text: #101418;
      --muted: #5b6670;
      --border: rgba(16,20,24,0.08);
      --accent: #2b7fff;
      --accent-contrast: #ffffff;
      --radius: 18px;
      --shadow: 0 8px 30px rgba(16, 20, 24, 0.12);
      --container: 980px; /* max šířka obsahu */
      --gutter: clamp(18px, 5vw, 40px); /* vnitřní odsazení od okrajů */
    }
    @media (prefers-color-scheme: dark) {
      :root {
        --surface: #12161a;
        --text: #e8edf2;
        --muted: #9aa6b2;
        --border: rgba(255,255,255,0.08);
        --accent: #64a8ff;
        --accent-contrast: #0b0c0f;
        --shadow: 0 10px 34px rgba(0,0,0,0.45);
      }
    }

    /* ===== Základ ===== */
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0; background: #fff; color: var(--text);
      font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica, Arial;
      line-height: 1.6;
    }

    .wrap { max-width: var(--container); margin: 0 auto; padding-inline: var(--gutter); }

    /* ===== Hero ===== */
    .hero { text-align: center; padding: 40px 0 8px; }
    .hero h1 { font-size: clamp(30px, 5vw, 44px); line-height: 1.12; margin: 0 0 10px; letter-spacing: -0.01em; }
    .hero p.lead { margin: 0 auto; color: white; font-size: clamp(16px, 2.4vw, 18px); max-width: 60ch; }

    /* ===== Karta obsahu ===== */
    .card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
    .section { margin: 24px 0; }
    .section .inner { padding: clamp(20px, 4.2vw, 36px); }

    .section h2 { font-size: clamp(22px, 3.2vw, 28px); margin: 0 0 14px; }
    .section h3 { font-size: clamp(18px, 2.6vw, 22px); margin: 18px 0 10px; }

    ul, ol { margin: 0; padding-left: 1.1rem; }
    li { margin: 6px 0; }

    .tips { margin-top: 14px; padding: 14px 16px; border-radius: 12px; border: 1px dashed var(--border); color: var(--muted); }

    /* ===== CTA ===== */
    .cta { display: grid; justify-content: center; gap: 10px; margin: 18px 0 4px; }
    .btn {
      display: inline-block; padding: 14px 22px; border-radius: 999px; border: 1px solid transparent;
      background: var(--accent); color: var(--accent-contrast); text-decoration: none; font-weight: 700;
      letter-spacing: .2px; box-shadow: 0 8px 22px rgba(43,127,255,.28);
      transition: transform .05s ease, box-shadow .2s ease, background .2s ease;
    }
    .btn:hover { transform: translateY(-1px); box-shadow: 0 12px 28px rgba(43,127,255,.34); }
    .btn:active { transform: translateY(0); }
    .cta small { color: var(--muted); text-align: center; }

    /* ===== Grid (desktop), single column (mobil) ===== */
    .grid {
      display: grid; gap: clamp(16px, 3vw, 24px);
      grid-template-columns: 1fr; /* mobil */
    }
    @media (min-width: 860px) {
      .grid { grid-template-columns: 1fr 1fr; }
    }

    /* ===== Kontakt blok ===== */
    .contact { text-align: center; }
    .contact p { color: var(--muted); }

    /* ===== Přídavná čitelnost na mobilu ===== */
    @media (max-width: 560px) {
      .hero { padding-top: 28px; }
      .section .inner { padding: 20px; }
    } 
  /* ===== Základní nastavení / proměnné ===== */
    :root {
      --bg: #0b0c0f;
      --text: #101418;
      --muted: #5b6670;
      --card: #ffffff;
      --border: rgba(16,20,24,0.08);
      --accent: #2b7fff;         /* primární barva tlačítka */
      --accent-contrast: #ffffff; /* barva textu na tlačítku */
      --radius: 16px;
      --shadow: 0 6px 24px rgba(16, 20, 24, 0.08);
    }

    @media (prefers-color-scheme: dark) {
      :root {
        --bg: #0b0c0f;
        --text: #e8edf2;
        --muted: #9aa6b2;
        --card: #12161a;
        --border: rgba(255,255,255,0.08);
        --accent: #64a8ff;
        --accent-contrast: #0b0c0f;
        --shadow: 0 6px 24px rgba(0,0,0,0.35);
      }
    }

    html { scroll-behavior: smooth; }
    body {
      margin: 0; padding: 24px; background:var(--bg) ; color: var(--text);
      font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
      line-height: 1.6;
    }

    /* ===== Sekce Montáž nábytku ===== */
    .section {
      max-width: 920px; margin: 40px auto; padding: 28px clamp(20px, 4vw, 40px);
      background: var(--card); border: 1px solid var(--border);
      border-radius: var(--radius); box-shadow: var(--shadow);
    }

    .section h2 {
      margin: 0 0 8px; font-size: clamp(28px, 4vw, 40px); line-height: 1.15;
      letter-spacing: -0.01em;
    }
    .section > p:first-of-type {
      margin: 0 0 20px; color: var(--muted); font-size: clamp(16px, 2.2vw, 18px);
    }

    .section h3 {
      margin: 24px 0 12px; font-size: clamp(20px, 2.6vw, 24px);
    }

    .section ul, .section ol {
      margin: 0 0 10px 1.25rem; padding: 0;
    }
    .section li { margin: 6px 0; }

    .cta {
      display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 22px;
    }

    .btn {
      display: inline-block; padding: 12px 18px; border-radius: 999px;
      background: var(--accent); color: var(--accent-contrast); text-decoration: none;
      font-weight: 600; letter-spacing: 0.2px; border: 1px solid transparent;
      transition: transform .04s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      box-shadow: 0 6px 18px rgba(43,127,255,0.24);
    }
    .btn:hover { transform: translateY(-1px); box-shadow: 0 10px 28px rgba(43,127,255,0.32); }
    .btn:active { transform: translateY(0); box-shadow: 0 6px 18px rgba(43,127,255,0.24); }
    .btn:focus-visible { outline: none; border-color: rgba(43,127,255,0.7); }

    .cta small { color: var(--muted); }

    /* ===== Responsivní detaily ===== */
    @media (max-width: 560px) {
      .section { margin: 20px auto; padding: 24px; }
      .cta { flex-direction: column; align-items: flex-start; }
      .cta .btn { width: 100%; text-align: center; }
    }