*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:#f2f5f9;color:#1d2733;font-size:16px;padding-bottom:calc(80px + env(safe-area-inset-bottom))}
header{background:#0f766e;color:#fff;padding:calc(14px + env(safe-area-inset-top)) calc(16px + env(safe-area-inset-right)) 14px calc(16px + env(safe-area-inset-left));position:sticky;top:0;z-index:5;font-size:19px;font-weight:600}
nav{position:fixed;bottom:0;left:0;right:0;background:#fff;display:flex;overflow-x:auto;border-top:1px solid #ddd;z-index:5;padding-bottom:env(safe-area-inset-bottom)}
nav button{flex:1 0 auto;min-width:64px;min-height:60px;border:0;background:none;font-size:12px;color:#555;padding:6px}
nav button b{display:block;font-size:20px}nav button.on{color:#0f766e;font-weight:700;background:#e6f4f2}
main{padding:12px;max-width:640px;margin:auto}.card{background:#fff;border-radius:12px;padding:14px;margin-bottom:12px;box-shadow:0 1px 3px #0001}
h2{font-size:18px;margin:4px 0 12px}h3{font-size:16px;margin:0 0 6px}
label{display:block;font-size:14px;color:#555;margin:8px 0 4px}input,select,textarea{width:100%;font-size:16px;padding:12px;border:1px solid #ccd;border-radius:8px;background:#fff}
.btn{display:inline-block;min-height:46px;padding:10px 16px;border:0;border-radius:10px;background:#0f766e;color:#fff;font-size:16px;margin:6px 6px 0 0;cursor:pointer}
.btn.sec{background:#e2e8f0;color:#1d2733}.btn.red{background:#dc2626}.btn.full{width:100%}.btn.sm{min-height:38px;padding:6px 12px;font-size:14px}
.row{display:flex;gap:8px}.row>*{flex:1}.muted{color:#667;font-size:14px}.tag{display:inline-block;padding:2px 8px;border-radius:20px;font-size:13px}
.ok{background:#dcfce7;color:#166534}.bad{background:#fee2e2;color:#991b1b}.mid{background:#fef3c7;color:#92400e}
.warn{background:#fff7ed;border-left:4px solid #f97316}.flex{display:flex;justify-content:space-between;align-items:center;gap:8px}
table{width:100%;border-collapse:collapse;font-size:14px}td,th{padding:6px 4px;border-bottom:1px solid #eee;text-align:left}td.r,th.r{text-align:right}
pre{white-space:pre-wrap;font-family:inherit;background:#f8fafc;padding:10px;border-radius:8px;font-size:14px}
#toast{position:fixed;bottom:90px;left:50%;transform:translateX(-50%);background:#222;color:#fff;padding:10px 16px;border-radius:20px;display:none;z-index:9}
/* --- bổ sung bản SaaS --- */
header{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
header .ttl{flex:1 1 auto;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
header select{width:auto;max-width:48vw;padding:6px 8px;font-size:14px;border-radius:8px;border:0;background:#ffffffe6;color:#0f3d39}
#sync{border:0;border-radius:20px;padding:5px 10px;font-size:13px;background:#ffffff26;color:#fff;cursor:pointer;white-space:nowrap}
#sync.offline{background:#fde68a;color:#78350f}#sync.pending{background:#fef3c7;color:#92400e}#sync.error{background:#fecaca;color:#7f1d1d}
.auth{max-width:420px;margin:24px auto}.auth h1{font-size:22px;text-align:center;color:#0f766e;margin:8px 0 16px}
.tabs2{display:flex;gap:6px;margin-bottom:8px}.tabs2 button{flex:1;min-height:42px;border:0;border-radius:10px;background:#e2e8f0;font-size:15px}.tabs2 button.on{background:#0f766e;color:#fff}
.links{text-align:center;font-size:14px;margin:12px 0}.links a{color:#0f766e}
.plan{border:2px solid #e2e8f0;border-radius:12px;padding:12px;margin:8px 0}.plan.cur{border-color:#0f766e;background:#f0fdfa}
.plan .price{font-size:18px;font-weight:700;color:#0f766e}
.bar{background:#e5e7eb;border-radius:8px;height:14px;margin:6px 0;overflow:hidden}.bar>div{height:100%;background:#0f766e}
.chk{display:flex;flex-wrap:wrap;gap:4px 14px;margin:4px 0}.chk label{display:flex;align-items:center;gap:6px;margin:4px 0;color:#1d2733;font-size:15px}.chk input{width:auto}
.secret{font-family:ui-monospace,monospace;font-size:20px;letter-spacing:1px;background:#fef3c7;padding:8px 12px;border-radius:8px;display:inline-block;user-select:all}
.role{font-size:12px;padding:2px 8px;border-radius:20px;background:#e0e7ff;color:#3730a3}