:root{--brand:#1d4ed8;--brand-dark:#1e3a8a;--ok:#047857;--warn:#b45309;--bad:#b91c1c;
  --ink:#111827;--muted:#6b7280;--line:#e5e7eb;--bg:#f6f8fc;--card:#fff}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
.wrap{max-width:680px;margin:0 auto;padding:0 18px}
.head{background:linear-gradient(135deg,var(--brand-dark),var(--brand));color:#fff}
.head .wrap{padding:22px 18px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.15rem}
.brand .dot{width:12px;height:12px;border-radius:50%;background:#7dd3fc;box-shadow:0 0 0 4px rgba(125,211,252,.25)}
.nav{margin-top:8px;display:flex;gap:16px;font-size:.92rem}
.nav a{color:#fff;opacity:.95;text-decoration:none}
h1{font-size:1.6rem;margin:26px 0 6px}
.lead{color:var(--muted);margin:0 0 18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px 24px;margin:18px 0}
.out{display:flex;gap:10px;align-items:stretch;margin:6px 0}
.pw{flex:1;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:1.15rem;word-break:break-all;
  background:#f8fafc;border:1px solid var(--line);border-radius:10px;padding:14px 16px;min-height:52px;display:flex;align-items:center}
.btn{background:var(--brand);color:#fff;border:none;border-radius:10px;padding:0 18px;font-size:.95rem;font-weight:600;cursor:pointer}
.btn:hover{background:var(--brand-dark)}
.btn.sec{background:#e5e7eb;color:var(--ink)}
.btn.block{width:100%;padding:13px;margin-top:6px}
.row{display:flex;flex-wrap:wrap;gap:14px 22px;align-items:center;margin:12px 0}
.row label{display:flex;align-items:center;gap:7px;font-size:.93rem}
input[type=range]{vertical-align:middle}
input[type=text],input[type=number],textarea{font-family:inherit;font-size:.95rem;border:1px solid var(--line);border-radius:8px;padding:9px 11px}
textarea{width:100%;min-height:70px;resize:vertical}
.meter{height:12px;border-radius:999px;background:#e5e7eb;overflow:hidden;margin:10px 0 4px}
.meter>span{display:block;height:100%;width:0;transition:width .4s,background .4s}
.small{font-size:.86rem;color:var(--muted)}
.tabs{display:flex;gap:6px;margin-bottom:14px}
.tab{padding:8px 16px;border-radius:999px;border:1px solid var(--line);background:#fff;cursor:pointer;font-weight:600;font-size:.9rem}
.tab.on{background:var(--brand);color:#fff;border-color:var(--brand)}
.hide{display:none}
.note{background:#ecfdf5;border:1px solid #6ee7b7;border-radius:10px;padding:12px 14px;font-size:.9rem;margin:12px 0}
.note.warn{background:#fffbeb;border-color:#fcd34d}
.note.bad{background:#fef2f2;border-color:#fca5a5}
.linkbox{font-family:ui-monospace,Menlo,monospace;font-size:.9rem;word-break:break-all;background:#f8fafc;border:1px solid var(--line);border-radius:10px;padding:12px 14px}
.reveal{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:1.4rem;word-break:break-all;background:#f0fdf4;border:1px solid #6ee7b7;border-radius:10px;padding:18px 20px;text-align:center}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:.85rem;padding:24px 0 48px;margin-top:20px}
@media(max-width:560px){.out{flex-direction:column}.btn{padding:12px}}