:root{--bg: #f4f6f8;--bg-grad-1: #eef2f5;--bg-grad-2: #e7ecf0;--card-bg: #ffffff;--text: #1a2230;--text-muted: #5b6675;--border: #dde3ea;--border-strong: #c6cfda;--accent: #1f9d57;--accent-hover: #178049;--accent-soft: #e7f6ee;--danger: #c8372d;--danger-soft: #fbeae8;--warn: #d98a00;--radius: 14px;--radius-sm: 9px;--shadow: 0 10px 30px rgba(20, 35, 60, .08), 0 2px 6px rgba(20, 35, 60, .05);--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";--mono: "SF Mono", ui-monospace, "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace}@media (prefers-color-scheme: dark){:root{--bg: #10151c;--bg-grad-1: #121822;--bg-grad-2: #0c1118;--card-bg: #1a2230;--text: #e7ecf2;--text-muted: #9aa7b8;--border: #2a3545;--border-strong: #3a4759;--accent: #2fb56a;--accent-hover: #3ec477;--accent-soft: #16301f;--danger: #e8675c;--danger-soft: #361b18;--warn: #e3a92e;--shadow: 0 12px 34px rgba(0, 0, 0, .45), 0 2px 8px rgba(0, 0, 0, .35)}}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--font);color:var(--text);background:radial-gradient(1200px 600px at 50% -10%,var(--bg-grad-1),var(--bg-grad-2)),var(--bg);min-height:100vh;-webkit-font-smoothing:antialiased;line-height:1.55}.page{max-width:640px;margin:0 auto;padding:2.5rem 1.25rem 4rem}.brand{display:flex;align-items:center;justify-content:center;gap:.6rem;margin-bottom:.4rem}.brand h1{font-size:1.9rem;font-weight:700;letter-spacing:-.02em;margin:0}.brand .flame{width:34px;height:34px}.tagline{text-align:center;color:var(--text-muted);margin:0 0 2rem;font-size:.98rem}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.5rem;margin-bottom:1.25rem}.card h2{font-size:1.05rem;font-weight:650;margin:0 0 1rem;display:flex;align-items:center;gap:.5rem}.card h2 .num{display:inline-flex;align-items:center;justify-content:center;width:1.5rem;height:1.5rem;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-size:.8rem;font-weight:700;flex:none}label{font-size:.9rem;font-weight:550;color:var(--text)}textarea,input[type=text],input[type=number]{width:100%;font-family:var(--font);font-size:.95rem;color:var(--text);background:var(--card-bg);border:1px solid var(--border-strong);border-radius:var(--radius-sm);padding:.7rem .8rem;transition:border-color .15s,box-shadow .15s}textarea{resize:vertical;min-height:140px;font-family:var(--mono);font-size:.92rem;line-height:1.5}textarea:focus,input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.45rem;font-family:var(--font);font-size:.92rem;font-weight:600;cursor:pointer;border:1px solid transparent;border-radius:var(--radius-sm);padding:.6rem 1rem;transition:background .15s,border-color .15s,color .15s,transform .05s;text-decoration:none;color:var(--text);background:transparent}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--accent);color:#fff;width:100%;padding:.8rem 1rem;font-size:1rem}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:disabled{opacity:.55;cursor:not-allowed}.btn-ghost{border-color:var(--border-strong);background:var(--card-bg)}.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}.btn-row{display:flex;flex-wrap:wrap;gap:.5rem}.btn-row .btn{flex:1 1 auto}.field{margin-bottom:1rem}.field:last-child{margin-bottom:0}.hint{font-size:.82rem;color:var(--text-muted);margin-top:.4rem}.checks{display:grid;grid-template-columns:1fr 1fr;gap:.55rem 1rem}@media (max-width: 460px){.checks{grid-template-columns:1fr}}.check{display:flex;align-items:center;gap:.5rem;font-size:.9rem;cursor:pointer;-webkit-user-select:none;user-select:none}.check input{width:1.05rem;height:1.05rem;accent-color:var(--accent);cursor:pointer}.alert{border-radius:var(--radius-sm);padding:.8rem .95rem;font-size:.9rem;border:1px solid}.alert-danger{background:var(--danger-soft);border-color:var(--danger);color:var(--danger)}.alert-info{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-hover)}.mono-box{font-family:var(--mono);font-size:.95rem;background:var(--bg);border:1px solid var(--border-strong);border-radius:var(--radius-sm);padding:.8rem;word-break:break-all;white-space:pre-wrap}footer{text-align:center;color:var(--text-muted);font-size:.8rem;margin-top:2.5rem}footer a{color:var(--text-muted)}