:root{
  --bg: #0b1020;
  --card: rgba(255,255,255,0.06);
  --card2: rgba(255,255,255,0.08);
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.68);
  --border: rgba(255,255,255,0.14);
  --primary: #6ea8fe;
  --success: #2dd4bf;
  --danger: #fb7185;
  --secondary: #a78bfa;
  --shadow: 0 12px 30px rgba(0,0,0,0.35);

  --radius: 16px;
}

[data-theme="light"]{
  --bg: #f6f7fb;
  --card: rgba(0,0,0,0.03);
  --card2: rgba(0,0,0,0.05);
  --text: rgba(0,0,0,0.82);
  --muted: rgba(0,0,0,0.56);
  --border: rgba(0,0,0,0.12);
  --shadow: 0 12px 30px rgba(0,0,0,0.10);
}

*{ box-sizing: border-box; }

body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  background: radial-gradient(1200px 600px at 20% 0%, rgba(110,168,254,0.25), transparent 50%),
              radial-gradient(900px 500px at 90% 10%, rgba(167,139,250,0.20), transparent 45%),
              var(--bg);
  color: var(--text);
}

.app{ max-width: 1100px; margin: 0 auto; padding: 22px; min-height: 100vh; display:flex; flex-direction:column; }

.topbar{
  display:flex; justify-content: space-between; align-items: center; gap: 14px;
  margin-bottom: 18px;
}

.brand{ display:flex; align-items:center; gap: 14px; }
.logo{
  width: 44px; height: 44px; border-radius: 14px;
  background: linear-gradient(135deg, rgba(110,168,254,0.95), rgba(167,139,250,0.95));
  display:flex; align-items:center; justify-content:center;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.brand h1{ margin:0; font-size: 18px; }
.brand p{ margin:2px 0 0 0; font-size: 13px; color: var(--muted); }

.grid{ display:grid; grid-template-columns: 1fr; gap: 14px; flex:1; min-height: 0; }
@media (min-width: 980px){ .grid{ grid-template-columns: 0.95fr 1.05fr; } }

.card{
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(110,168,254,0.25);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  position: relative;
  overflow: hidden;
}

.card h2{ margin: 0 0 12px 0; font-size: 16px; }

.row{ display:flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-top: 12px; }

.label{ display:block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }

.btn{
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
  font-weight: 650;
  cursor:pointer;
  transition: transform .05s ease, background .15s ease, border-color .15s ease;
}
.btn:disabled{ opacity: 0.55; cursor:not-allowed; }
.btn:hover:not(:disabled){ background: rgba(255,255,255,0.10); }
.btn:active:not(:disabled){ transform: translateY(1px); }

.btn-primary{ background: rgba(110,168,254,0.18); border-color: rgba(110,168,254,0.38); }
.btn-secondary{ background: rgba(167,139,250,0.18); border-color: rgba(167,139,250,0.38); }
.btn-success{ background: rgba(45,212,191,0.18); border-color: rgba(45,212,191,0.38); }
.btn-ghost{ background: rgba(255,255,255,0.08); border-color: rgba(110,168,254,0.25); }

.dropzone{
  border: 2px dashed rgba(110,168,254,0.5);
  background: rgba(110,168,254,0.08);
  border-radius: 18px;
  padding: 18px;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease, transform .08s ease;
  min-height: 128px;
  display:flex; align-items:center; justify-content:center;
  text-align:center;
}
.dropzone:hover{ background: rgba(110,168,254,0.12); border-color: rgba(110,168,254,0.65); }
.dropzone.dragover{ background: rgba(45,212,191,0.10); border-color: rgba(45,212,191,0.55); }

.dropzone-inner{ display:flex; flex-direction:column; gap: 10px; align-items:center; }
.drop-icon{ font-size: 22px; }
.drop-text strong{ font-size: 15px; }
.drop-text span{ display:block; color: var(--muted); font-size: 13px; margin-top: 4px; }

.progress-wrap{ margin-top: 12px; }
.progress-top{ display:flex; justify-content: space-between; align-items:center; margin-bottom: 8px; }
.mono{ font-variant-numeric: tabular-nums; }

.progress{
  height: 10px;
  background: rgba(255,255,255,0.10);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.progress-bar{ height: 100%; background: linear-gradient(90deg, rgba(110,168,254,0.95), rgba(167,139,250,0.95)); width:0%; }

.message{
  margin-top: 12px;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.05);
}
.message.ok{ border-color: rgba(45,212,191,0.45); background: rgba(45,212,191,0.12); }
.message.err{ border-color: rgba(251,113,133,0.45); background: rgba(251,113,133,0.12); }

.summary{ display:flex; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.stat{
  border: 1px solid var(--border);
  background: var(--card2);
  border-radius: 14px;
  padding: 12px;
  min-width: 160px;
}
.stat .k{ color: var(--muted); font-size: 13px; }
.stat .v{ font-size: 20px; font-weight: 850; margin-top: 4px; }

.result-card{ display:flex; flex-direction:column; }

.table-wrap{
  overflow:auto;
  border-radius: 14px;
  border: 1px solid var(--border);
  flex: 1;
  min-height: 0;
}

.table{ width: 100%; border-collapse: collapse; min-width: 820px; }
.table thead th{
  position: sticky; top: 0;
  background: rgba(0,0,0,0.25);
  border-bottom: 1px solid var(--border);
  padding: 10px;
  font-size: 12px;
  text-align:left;
  white-space: nowrap;
}
[data-theme="light"] .table thead th{ background: rgba(255,255,255,0.65); }
.table tbody td{
  padding: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  font-size: 13px;
  white-space: nowrap;
}

.tr-invalid td{ background: rgba(251,113,133,0.14); }

.buttons-row{ justify-content: space-between; }
.hint{ margin-top: 12px; font-size: 13px; }

.muted{ color: var(--muted); }
.footer{ margin-top: 16px; font-size: 12px; text-align:center; }

.loading-overlay{
  position:absolute; inset:0;
  background: rgba(0,0,0,0.35);
  backdrop-filter: blur(6px);
  display:flex; flex-direction:column; justify-content:center; align-items:center;
  gap: 10px;
}
.loading-overlay[hidden] {
  display: none;
}
.spinner{
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 4px solid rgba(255,255,255,0.18);
  border-top-color: rgba(110,168,254,0.95);
  animation: spin 1s linear infinite;
}
@keyframes spin{ to{ transform: rotate(360deg); } }
.loading-text{ color: var(--muted); font-size: 13px; }