*{box-sizing:border-box}body{margin:0;font-family:Arial,sans-serif;background:#f3f4f6;color:#111827}
main{max-width:760px;margin:auto;padding:22px}.card{background:#fff;border-radius:18px;padding:22px;box-shadow:0 8px 28px #0001;margin:16px 0}
h1{margin:0 0 6px}.muted{color:#6b7280}.field{margin:14px 0}label{display:block;font-weight:700;margin-bottom:6px}
input,select,textarea{width:100%;padding:13px;border:1px solid #d1d5db;border-radius:10px;font-size:16px}
button{border:0;border-radius:10px;background:#111827;color:#fff;padding:12px 16px;font-weight:700;font-size:15px;cursor:pointer}
button.ghost{background:#e5e7eb;color:#111827}.row{display:flex;gap:10px;flex-wrap:wrap}.row>*{flex:1}
.top{display:flex;justify-content:space-between;align-items:center;gap:10px}.tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:15px 0}
.small{font-size:13px}.danger{background:#b91c1c}.ok{background:#047857}.hidden{display:none!important}
.item{border:1px solid #e5e7eb;border-radius:12px;padding:12px;margin:8px 0}.badge{display:inline-block;padding:4px 8px;border-radius:20px;background:#e5e7eb;font-size:12px}
#toast{position:fixed;top:14px;left:50%;transform:translateX(-50%);z-index:99;background:#111827;color:#fff;padding:12px 18px;border-radius:10px;display:none}
.modal{position:fixed;inset:0;background:#0009;z-index:50;display:flex;align-items:center;justify-content:center;padding:12px}.sigbox{background:white;border-radius:16px;padding:14px;width:min(96vw,900px)}
.sighead{display:flex;justify-content:space-between;align-items:center}.sighead button{background:transparent;color:#111827;font-size:22px}
canvas{width:100%;height:48vh;border:2px dashed #9ca3af;border-radius:10px;touch-action:none;background:#fff}
@media(orientation:landscape){.modal{padding:0}.sigbox{width:100vw;height:100vh;max-width:none;border-radius:0;display:flex;flex-direction:column}.sigbox p{display:none}canvas{flex:1;height:auto}.sighead{min-height:48px}}