*{box-sizing:border-box;margin:0;padding:0}
:root{--teal:#0f766e;--teal-d:#0d665f;--teal-l:#14b8a6;--ink:#102a43;--muted:#5c6b75;--line:#cbdde3;--bg:#f5fafb;--card:#fff}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.5}
header{display:flex;align-items:center;gap:14px;padding:14px 20px;background:#fff;border-bottom:1px solid var(--line)}
.brand{font-weight:800;font-size:18px;text-decoration:none;color:var(--ink)}.brand span{color:var(--teal)}
header b{color:var(--muted);font-weight:600;font-size:14px}
.hero{text-align:center;padding:28px 20px 8px}
.hero small{color:var(--teal);font-weight:700;letter-spacing:.5px;font-size:12px}
.hero h2{font-size:27px;margin:8px 0 6px}
.hero p{color:var(--muted);max-width:620px;margin:0 auto}
.tools{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;padding:16px;max-width:880px;margin:0 auto}
.tools button{display:inline-flex;align-items:center;gap:6px;padding:9px 14px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--ink);font-weight:600;font-size:14px;cursor:pointer;transition:.15s}
.tools button span{font-weight:800;color:var(--teal)}
.tools button:hover{border-color:var(--teal-l);color:var(--teal)}
.tools button.active{background:var(--teal);border-color:var(--teal);color:#fff}
.tools button.active span{color:#fff}
.app{max-width:880px;margin:0 auto;padding:8px 16px 30px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;box-shadow:0 10px 30px rgba(16,38,51,.06)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-weight:600;font-size:14px}
.field input,.field textarea,.field select{padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px;font-family:inherit;width:100%}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--teal)}
.field textarea{min-height:80px;resize:vertical}
.hint{color:var(--muted);font-size:12px}
.btn{border:none;border-radius:8px;padding:10px 18px;font-weight:700;font-size:14px;cursor:pointer;transition:.15s}
.btn.primary{background:var(--teal);color:#fff;box-shadow:0 6px 16px rgba(15,118,110,.22)}
.btn.primary:hover{background:var(--teal-d);transform:translateY(-1px)}
.btn.big{padding:12px 24px;font-size:15px}
.btn.ghost{background:#fff;border:1px solid var(--line);color:var(--muted)}
.btn.ghost:hover{border-color:var(--teal-l);color:var(--teal)}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:6px}
.output{margin-top:16px}
.output label{font-weight:600;font-size:14px;display:block;margin-bottom:6px}
.output pre{background:#0f172a;color:#e2e8f0;padding:14px;border-radius:8px;overflow:auto;font-size:13px;white-space:pre-wrap;word-break:break-word;max-height:320px}
.copy-btn{margin-top:8px}
.status{color:var(--muted);font-size:14px;margin-top:8px}.status.ok{color:#0a7d33}.status.err{color:#b3261e}
.dropzone{border:2px dashed #79a7b1;border-radius:14px;background:#f0f9fa;padding:36px 20px;text-align:center;cursor:pointer}
.dropzone.drag{background:#e2f4f6;border-color:var(--teal)}
.dz-icon{font-size:40px;color:var(--teal)}
.fav-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(90px,1fr));gap:12px;margin:14px 0}
.fav-item{border:1px solid var(--line);border-radius:8px;padding:10px;text-align:center;background:#fff}
.fav-item canvas,.fav-item img{display:block;margin:0 auto 6px;max-width:64px}
.fav-item small{color:var(--muted);font-size:11px}
.fav-item a{display:block;margin-top:6px;font-size:12px;color:var(--teal);text-decoration:none;font-weight:700}
.swatches{display:grid;grid-template-columns:repeat(auto-fill,minmax(90px,1fr));gap:10px;margin-top:14px}
.swatch{border-radius:8px;overflow:hidden;border:1px solid var(--line);cursor:pointer}
.swatch .clr{height:64px}
.swatch .hex{padding:6px;font-size:12px;text-align:center;background:#fff;font-weight:600}
.pw-out{font-family:monospace;font-size:18px;background:#0f172a;color:#5eead4;padding:14px;border-radius:8px;word-break:break-all;text-align:center}
.range-row{display:flex;align-items:center;gap:12px}
.range-row input[type=range]{flex:1}
.chk{display:flex;gap:8px;align-items:center;font-size:14px}
.benefits{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:760px;margin:10px auto 0;padding:20px 16px}
.benefits div{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px;text-align:center}
.benefits b{display:block}.benefits span{color:var(--muted);font-size:13px}
footer{text-align:center;color:var(--muted);font-size:13px;padding:24px 16px}
@media(max-width:600px){.benefits{grid-template-columns:1fr}.grid2{grid-template-columns:1fr}.hero h2{font-size:23px}}