:root{
      --bg: #f7f8fc;
      --surface: #ffffff;
      --ink: #1c1e21;
      --muted:#6b7280;
      --brand:#5b7cff; /* light indigo/aramic-inspired cool tone */
      --accent:#a78bfa; /* soft lavender */
      --ok:#10b981;
      --warn:#f59e0b;
      --shadow: 0 10px 30px rgba(0,0,0,.06);
      --radius: 16px;
      --radius-sm: 12px;
    }
    html{scroll-behavior:smooth}
    *,*::before,*::after{box-sizing:border-box}
    body{margin:0;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, "Apple Color Emoji","Segoe UI Emoji";color:var(--ink);background:var(--bg);line-height:1.55}
    a{color:var(--brand);text-decoration:none}
    a:focus-visible,button:focus-visible,textarea:focus-visible,input:focus-visible{outline:3px solid rgba(91,124,255,.35);outline-offset:2px}
    .container{max-width:1100px;margin-inline:auto;padding:24px}

    /* Header */
    header{position:sticky;top:0;z-index:10;background:rgba(247,248,252,.8);backdrop-filter:saturate(150%) blur(8px);border-bottom:1px solid #eef0f7}
    .brand{display:flex;align-items:center;gap:12px}
    .logo{inline-size:40px;block-size:40px;border-radius:50%;background:conic-gradient(from 220deg, var(--brand), var(--accent));display:inline-grid;place-items:center;color:white;box-shadow:var(--shadow)}
    .logo svg{width:22px;height:22px}
    .title{font-weight:700}
    nav ul{display:flex;gap:16px;list-style:none;padding:0;margin:0}
    nav a{color:var(--muted)}

    .mast{display:grid;gap:10px;padding-block:18px}
    .mast h1{font-size:1.4rem;margin:0}
    .mast p{color:var(--muted);margin:0}

    .refferer{
      border: 0;
      border-radius: 10px;
      padding: 8px;
      font-weight: 600;
      cursor: pointer;
      transition: transform .1s ease, box-shadow .2s ease;
      background: #FFB347;
      color: #222;
      box-shadow: var(--shadow);
    }
    .blog_header{
        max-width: 900px;
        margin: auto;
        padding: 20px;
    }
    /* Card */
    .card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}
    .grid{display:grid;gap:14px}
    @media(min-width:900px){
      .tool{grid-template-columns:1fr 1fr;align-items:start}
    }

    .controls{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
    .pill{display:inline-flex;align-items:center;gap:8px;border:1px solid #e8ebf5;border-radius:999px;padding:8px 12px;background:#fff}
    label[for]{cursor:pointer}

    textarea{width:100%;min-height:160px;resize:vertical;border:1px solid #e6e8f2;border-radius:var(--radius-sm);padding:12px 14px;font-size:1rem;background:#fff;transition:box-shadow .2s ease}
    textarea[readonly]{background:#f9fafb;color:#111}

    .row{display:flex;gap:10px;flex-wrap:wrap}
    .btn{border:0;border-radius:14px;padding:12px 16px;font-weight:600;cursor:pointer;transition:transform .1s ease, box-shadow .2s ease;background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;box-shadow:var(--shadow)}
    .btn:hover{transform:translateY(-1px)}
    .btn:active{transform:translateY(0)}
    .btn.secondary{background:#eef0ff;color:#243}
    .btn.ghost{background:#fff;border:1px solid #e8ebf5;color:#333}

    .muted{color:var(--muted)}
    .status{font-size:.95rem}

    .swap{display:inline-grid;place-items:center;border-radius:10px;border:1px dashed #e5e7eb;padding:8px;background:#fcfcff}

    .visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

    /* Sections under tool */
    section{scroll-margin-top:70px}
    .prose{color:#222}
    .prose h2{font-size:1.25rem;margin:.2rem 0 .5rem}
    .prose p{color:#374151}
    .faq details{background:#fff;border:1px solid #eef0f7;border-radius:12px;padding:12px}
    .faq details+details{margin-top:8px}
    .faq summary{cursor:pointer;font-weight:600}

    footer{color:#6b7280;padding:40px 24px}

    /* Reduced motion */
    @media (prefers-reduced-motion: reduce){
      *{animation:none!important;transition:none!important}
    }