*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0a0a0f;--surface:#12121a;--surface2:#1a1a26;--border:#2a2a3a;
  --text:#e8e8f0;--text2:#8888a0;--accent:#6c5ce7;--accent2:#a29bfe;
  --green:#00b894;--red:#ff6b6b;--yellow:#ffd93d;
  --radius:12px;--radius-sm:8px;
}
html{font-size:14px}
body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;line-height:1.6;min-height:100vh}
a{color:var(--accent2);text-decoration:none}
a:hover{text-decoration:underline}

.app{max-width:1100px;margin:0 auto;padding:20px 16px 60px}

/* Header */
header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:24px 0 16px}
.brand{display:flex;align-items:center;gap:14px}
.logo{width:48px;height:48px;background:linear-gradient(135deg,var(--accent),var(--accent2));border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;color:#fff;letter-spacing:1px}
.brand small{color:var(--text2);font-size:.75rem;letter-spacing:2px;text-transform:uppercase}
.brand h1{font-size:1.35rem;font-weight:700;margin-top:2px}
.badges{display:flex;gap:8px;flex-wrap:wrap}
.badge{background:var(--surface2);border:1px solid var(--border);border-radius:20px;padding:4px 14px;font-size:.8rem;color:var(--text2);white-space:nowrap}

/* Tabs */
.tabs{display:flex;gap:4px;margin:16px 0 20px;border-bottom:1px solid var(--border);padding-bottom:0}
.tab{background:none;border:none;color:var(--text2);font-size:1rem;padding:10px 24px;cursor:pointer;border-bottom:2px solid transparent;transition:.2s}
.tab:hover{color:var(--text)}
.tab.active{color:var(--accent2);border-bottom-color:var(--accent)}
.tab-content{display:none}
.tab-content.active{display:block}

/* Grid */
.grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:768px){.grid{grid-template-columns:1fr}}

/* Card */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px}
.card.full{grid-column:1/-1}
.card-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:20px}
.card-head small{color:var(--text2);font-size:.7rem;letter-spacing:2px;text-transform:uppercase}
.card-head h2{font-size:1.15rem;font-weight:600;margin-top:4px}
.step{background:var(--accent);color:#fff;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.85rem;flex-shrink:0}

/* Form */
label{display:block;margin-bottom:16px}
label>span{display:block;font-size:.85rem;color:var(--text2);margin-bottom:6px}
label small{color:var(--text2);font-size:.75rem;margin-top:4px;display:block}
input,textarea{width:100%;background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 14px;color:var(--text);font-family:inherit;font-size:.9rem;resize:vertical;transition:border .2s}
input:focus,textarea:focus{outline:none;border-color:var(--accent)}
input::placeholder,textarea::placeholder{color:#555}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border:none;border-radius:var(--radius-sm);font-size:.9rem;font-weight:500;cursor:pointer;transition:.2s;text-decoration:none}
.btn:disabled{opacity:.4;cursor:not-allowed}
.btn.primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff}
.btn.primary:hover:not(:disabled){filter:brightness(1.1)}
.btn.secondary{background:var(--accent);color:#fff}
.btn.ghost{background:var(--surface2);border:1px solid var(--border);color:var(--text)}
.btn.ghost:hover:not(:disabled){border-color:var(--accent);color:var(--accent2)}
.btn.small{padding:6px 14px;font-size:.8rem}
.actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:12px}

/* Status */
.status{padding:8px 16px;border-radius:var(--radius-sm);font-size:.9rem;font-weight:500;margin-bottom:16px;text-align:center}
.status.idle{background:var(--surface2);color:var(--text2)}
.status.running{background:rgba(108,92,231,.15);color:var(--accent2);animation:pulse 1.5s ease infinite}
.status.success{background:rgba(0,184,148,.12);color:var(--green)}
.status.error{background:rgba(255,107,107,.1);color:var(--red)}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.6}}

/* Result */
.empty{text-align:center;padding:40px 20px;color:var(--text2)}
.empty h3{margin-bottom:8px;font-weight:500}
.result{animation:fadeIn .3s ease}
.amount-row{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:var(--surface2);border-radius:var(--radius-sm);margin-bottom:12px}
.amount-row strong{font-size:1.2rem;color:var(--green)}
.link-row{display:flex;align-items:center;gap:10px;padding:12px 16px;background:var(--surface2);border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden}
.link-row span{color:var(--text2);font-size:.85rem;flex-shrink:0}
.link-row code{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--accent2);font-size:.85rem}
.link-actions{display:flex;gap:8px;margin-bottom:12px}
.billing{padding:10px 16px;background:var(--surface2);border-radius:var(--radius-sm);color:var(--text2);font-size:.85rem}

/* Batch results */
.batch{margin-top:12px}
.batch-head{font-weight:600;margin-bottom:8px;padding:8px 0;border-bottom:1px solid var(--border)}
.batch-row{display:flex;align-items:center;gap:12px;padding:10px 14px;background:var(--surface2);border-radius:var(--radius-sm);margin-bottom:6px;font-size:.85rem;flex-wrap:wrap}
.batch-row strong{flex-shrink:0}
.batch-row a,.batch-row .url{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.batch-row .tag{padding:2px 10px;border-radius:12px;font-size:.75rem;font-weight:500;flex-shrink:0}
.tag.success{background:rgba(0,184,148,.15);color:var(--green)}
.tag.error,.tag.expired{background:rgba(255,107,107,.12);color:var(--red)}
.tag.pending,.tag.queued{background:rgba(108,92,231,.15);color:var(--accent2)}
.tag.processing{background:rgba(255,217,61,.12);color:var(--yellow)}

/* Error */
.error{padding:10px 16px;background:rgba(255,107,107,.08);border:1px solid rgba(255,107,107,.2);border-radius:var(--radius-sm);color:var(--red);font-size:.85rem;margin-top:12px}

/* Log */
.log{background:#080810;border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px;font-family:"Cascadia Code","Fira Code",Consolas,monospace;font-size:.8rem;color:var(--text2);max-height:300px;overflow-y:auto;white-space:pre-wrap;word-break:break-all;min-height:80px}

/* Merge box */
.merge-box{background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px;margin-bottom:16px}

/* Hint */
.hint{color:var(--text2);font-size:.8rem;margin-bottom:8px}

/* Hidden */
.hidden{display:none!important}

/* Footer */
footer{text-align:center;color:var(--text2);font-size:.75rem;letter-spacing:2px;padding:40px 0 20px}

/* Animations */
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

/* Scrollbar */
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:var(--surface)}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--text2)}