@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap");:root{--bg:#f4f7f9;--card:#fff;--text:#0f172a;--text-muted:#64748b;--border:#e2e8f0;--primary:#2563eb;--primary-hover:#1d4ed8;--ok:#10b981;--ok-bg:#ecfdf5;--warn:#f59e0b;--warn-bg:#fffbeb;--radius:16px;--shadow:0 4px 6px -1px rgba(0,0,0,.05),0 2px 4px -1px rgba(0,0,0,.03)}*{box-sizing:border-box}body{background-color:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;margin:0;padding:0;min-height:100vh;-webkit-font-smoothing:antialiased}.wrap{max-width:520px;margin:0 auto;padding:60px 20px}h1{font-size:24px;margin:0 0 8px;letter-spacing:-.02em}h1,h1.amount{font-weight:700}h1.amount{font-size:36px;letter-spacing:-.03em;color:var(--text)}.muted{color:var(--text-muted);font-size:14px;margin:0}.mono,.small{font-size:13px}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace}.break{word-break:break-all}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}label{margin-bottom:20px;font-size:14px;font-weight:500}input,label{display:block;color:var(--text)}input{width:100%;margin-top:8px;padding:12px 14px;background:#fff;border:1px solid var(--border);border-radius:10px;font-size:15px;font-family:inherit;transition:all .2s}input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.15)}input::placeholder{color:#94a3b8}.hint{display:block;margin-top:8px;font-size:13px;color:var(--text-muted);font-weight:400}.btn,button[type=submit]{display:flex;align-items:center;justify-content:center;width:100%;padding:14px;background:var(--primary);color:#fff;border:0;border-radius:10px;font-size:16px;font-weight:600;font-family:inherit;cursor:pointer;transition:background .2s;text-decoration:none}.btn:hover,button[type=submit]:hover{background:var(--primary-hover)}button[type=submit]:disabled{opacity:.6;cursor:not-allowed}.error{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca;padding:12px;border-radius:10px;font-size:14px;margin-bottom:16px}.warning{background:var(--warn-bg);border:1px solid #fde68a;color:#92400e;padding:14px;border-radius:10px;font-size:13px;line-height:1.5;margin:20px 0}.row-between{display:flex;justify-content:space-between;align-items:flex-start;gap:20px}.timer{text-align:right;background:#f8fafc;padding:8px 12px;border-radius:8px;border:1px solid var(--border)}.timer span{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);font-weight:600;margin-bottom:2px}.timer strong{display:block;font-size:18px;color:var(--primary)}.qr-block{display:grid;justify-items:center;grid-gap:16px;gap:16px;margin:24px 0;padding:24px 0;border-top:1px dashed var(--border);border-bottom:1px dashed var(--border)}.qr-block img{border-radius:12px;border:1px solid var(--border);box-shadow:0 4px 12px rgba(0,0,0,.05)}.qr-toggle{display:flex;gap:8px;background:#f1f5f9;padding:4px;border-radius:10px}.chip{background:transparent;border:none;color:var(--text-muted);padding:8px 16px;border-radius:6px;font-size:13px;font-weight:500;cursor:pointer;transition:all .2s}.chip.on{background:#fff;color:var(--text);box-shadow:0 1px 3px rgba(0,0,0,.1)}.kv{display:grid;grid-template-columns:120px 1fr;grid-gap:16px;gap:16px;margin:24px 0}.kv dt{color:var(--text-muted);font-size:14px}.kv dd,.kv dt{font-weight:500}.kv dd{margin:0;font-size:15px;display:flex;align-items:center;gap:8px}.link{background:none;border:none;color:var(--primary);cursor:pointer;font-size:13px;font-weight:500;padding:0;text-decoration:underline;text-underline-offset:2px}.link:hover{color:var(--primary-hover)}.badge-ok,.badge-warn{display:inline-flex;align-items:center;padding:6px 12px;border-radius:999px;font-size:13px;font-weight:600;margin-bottom:16px}.badge-ok{background:var(--ok-bg);color:#065f46;border:1px solid #a7f3d0}.badge-warn{background:var(--warn-bg);color:#92400e;border:1px solid #fde68a}