:root{--bg:#0a0a0a;--fg:#f5f5f5;--muted:#888;--accent:#10b981;--accent-glow:#10b98166;--idle:#2a2a2a;--busy:#f59e0b;--err:#ef4444;--border:#1f1f1f}@media (prefers-color-scheme:light){:root{--bg:#fafafa;--fg:#0a0a0a;--muted:#666;--idle:#e5e5e5;--border:#e5e5e5}}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{background:var(--bg);color:var(--fg);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Inter,system-ui,sans-serif}.wrap{flex-direction:column;justify-content:center;align-items:center;gap:2rem;max-width:480px;min-height:100dvh;margin:0 auto;padding:2rem 1.5rem;display:flex}h1{letter-spacing:-.02em;font-size:1.75rem;font-weight:600}.sub{color:var(--muted);margin-top:-1.25rem;font-size:.95rem}.row{align-items:center;gap:.75rem;width:100%;display:flex}select{color:var(--fg);border:1px solid var(--border);cursor:pointer;appearance:none;background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'><path d='M1 1.5L6 6.5L11 1.5' stroke='%23888' stroke-width='1.5' stroke-linecap='round'/></svg>") right 1rem center no-repeat;border-radius:.75rem;flex:1;padding:.85rem 2.5rem .85rem 1rem;font-family:inherit;font-size:1rem;transition:border-color .15s}select:hover:not(:disabled){border-color:var(--muted)}select:disabled{opacity:.5;cursor:not-allowed}.arrows{color:var(--muted);-webkit-user-select:none;user-select:none;font-size:1.1rem}.big{cursor:pointer;color:#fff;border:none;border-radius:1rem;justify-content:center;align-items:center;gap:.75rem;width:100%;padding:1.5rem;font-family:inherit;font-size:1.05rem;font-weight:500;transition:all .2s;display:flex}.big.off{background:var(--idle);color:var(--fg)}.big.off:hover{background:color-mix(in srgb, var(--idle) 80%, var(--fg) 20%)}.big.busy{background:var(--busy);cursor:wait}.big.on{background:var(--accent);box-shadow:0 0 0 6px var(--accent-glow);animation:2s ease-in-out infinite pulse}.big:disabled{opacity:.7}.dot{background:currentColor;border-radius:50%;width:8px;height:8px;display:inline-block}.big.on .dot{background:#fff;box-shadow:0 0 12px #fff}.big.off .dot{background:var(--muted)}@keyframes pulse{0%,to{box-shadow:0 0 0 6px var(--accent-glow)}50%{box-shadow:0 0 0 14px #0000}}.err{color:var(--err);text-align:center;font-size:.85rem}.hint{color:var(--muted);text-align:center;margin-top:-1rem;font-size:.8rem}.seg{background:var(--idle);border-radius:.75rem;gap:4px;width:100%;padding:4px;display:flex}.seg-btn{color:var(--muted);cursor:pointer;white-space:nowrap;text-overflow:ellipsis;background:0 0;border:none;border-radius:.55rem;flex:1;padding:.6rem;font-family:inherit;font-size:.9rem;font-weight:500;transition:all .15s;overflow:hidden}.seg-btn.on{background:var(--bg);color:var(--fg);box-shadow:0 1px 3px #00000026}.seg-btn:disabled{opacity:.5;cursor:not-allowed}.meter{color:var(--muted);text-align:center;margin-top:-.75rem;font-size:.85rem}.meter strong{color:var(--fg);font-weight:500}.modal{z-index:50;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0000008c;justify-content:center;align-items:center;padding:1.5rem;display:flex;position:fixed;inset:0}.card{background:var(--bg);border:1px solid var(--border);border-radius:1rem;flex-direction:column;gap:1rem;width:100%;max-width:420px;padding:2rem 1.75rem 1.5rem;display:flex;box-shadow:0 20px 60px #0006}.card h2{letter-spacing:-.01em;font-size:1.25rem;font-weight:600}.card .muted{color:var(--muted);font-size:.95rem;line-height:1.45}.card .small{font-size:.82rem}.pay{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:.75rem;padding:1rem;font-family:inherit;font-size:1.05rem;font-weight:600;transition:filter .15s}.pay:hover:not(:disabled){filter:brightness(1.1)}.pay:disabled{opacity:.6;cursor:wait}.email{flex-direction:column;gap:.6rem;margin-top:.5rem;display:flex}.email-row{gap:.5rem;display:flex}.email-row input{color:var(--fg);border:1px solid var(--border);background:0 0;border-radius:.6rem;outline:none;flex:1;padding:.7rem .85rem;font-family:inherit;font-size:.95rem}.email-row input:focus{border-color:var(--accent)}.email-row button{background:var(--idle);color:var(--fg);border:1px solid var(--border);cursor:pointer;white-space:nowrap;border-radius:.6rem;padding:.7rem 1rem;font-family:inherit;font-size:.9rem;font-weight:500}.email-row button:hover:not(:disabled){background:color-mix(in srgb, var(--idle) 70%, var(--fg) 30%)}.email-row button:disabled{opacity:.5;cursor:not-allowed}.ok{color:var(--accent);font-size:.95rem}.link{color:var(--muted);cursor:pointer;text-underline-offset:3px;background:0 0;border:none;align-self:center;font-family:inherit;font-size:.85rem;text-decoration:underline}.link:hover{color:var(--fg)}