:root {
  --bg: #0b1220;
  --panel: #111a2f;
  --text: #e7eefc;
  --muted: #a6b4d6;
  --border: rgba(255, 255, 255, 0.12);
  --accent: #6aa6ff;
  --danger: #ff6a6a;
  --ok: #7cff9c;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 600px at 20% 0%, #13214b 0%, var(--bg) 55%, #070b14 100%);
  color: var(--text);
}

header {
  padding: 18px 16px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0));
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
  z-index: 20;
}

header .brand {
  display: flex;
  gap: 12px;
  align-items: center;
}

header .logo {
  width: 34px;
  height: 34px;
  object-fit: contain;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border);
}

header h1 {
  margin: 0;
  font-size: 16px;
  font-weight: 650;
  letter-spacing: 0.2px;
}

header .sub {
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
}

main {
  padding: 16px;
  max-width: 1200px;
  margin: 0 auto;
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

@media (min-width: 980px) {
  .grid {
    grid-template-columns: 1fr 1fr;
  }
}

.panel {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
}

.panel h2 {
  margin: 0 0 10px 0;
  font-size: 14px;
  font-weight: 650;
  color: var(--text);
}

.row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: 10px;
}

@media (min-width: 720px) {
  .row.cols-2 {
    grid-template-columns: 1fr 1fr;
  }
  .row.cols-3 {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}

input[type="text"],
input[type="file"],
select,
textarea {
  width: 100%;
  box-sizing: border-box;
  background: rgba(0, 0, 0, 0.25);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 10px;
  outline: none;
}

textarea {
  min-height: 160px;
  resize: vertical;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.45;
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.gap-top {
  margin-top: 10px;
}

button {
  background: rgba(106, 166, 255, 0.15);
  border: 1px solid rgba(106, 166, 255, 0.35);
  color: var(--text);
  padding: 9px 12px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  font-size: 12px;
}

button.secondary {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  font-weight: 600;
}

button.danger {
  background: rgba(255, 106, 106, 0.12);
  border: 1px solid rgba(255, 106, 106, 0.35);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.status {
  margin-top: 10px;
  font-size: 12px;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.25);
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--mono);
}

.status.ok {
  border-color: rgba(124, 255, 156, 0.35);
  background: rgba(124, 255, 156, 0.08);
}

.status.err {
  border-color: rgba(255, 106, 106, 0.35);
  background: rgba(255, 106, 106, 0.08);
}

.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

@media (min-width: 980px) {
  .split {
    grid-template-columns: 1fr 1fr;
  }
}