:root {
  --bg: #0b0f19;
  --card: #121a2c;
  --text: #e7ecff;
  --muted: #a9b3d6;
  --accent: #4fd1c5;
  --danger: #ff6b6b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji",
    "Segoe UI Emoji";
  background: radial-gradient(1200px 700px at 20% 0%, #172246 0%, var(--bg) 55%);
  color: var(--text);
}

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 28px 18px;
}

h1 {
  margin: 0 0 8px;
  font-size: 28px;
  letter-spacing: 0.2px;
}

.muted {
  margin: 0 0 18px;
  color: var(--muted);
}

.card {
  background: rgba(18, 26, 44, 0.85);
  border: 1px solid rgba(79, 209, 197, 0.25);
  border-radius: 14px;
  padding: 16px;
}

label {
  display: block;
  margin: 12px 0;
}

input[type="file"],
input[type="number"] {
  width: 100%;
  margin-top: 6px;
  background: #0b0f19;
  border: 1px solid rgba(231, 236, 255, 0.15);
  color: var(--text);
  padding: 10px;
  border-radius: 10px;
}

button {
  margin-top: 8px;
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 0;
  color: #061015;
  background: var(--accent);
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  filter: brightness(1.05);
}

.btn-link {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 12px;
  background: var(--accent);
  color: #061015;
  font-weight: 700;
  text-decoration: none;
}

.btn-link:hover {
  filter: brightness(1.05);
}

.status .line {
  margin: 8px 0;
}

.error {
  color: var(--danger);
  white-space: pre-wrap;
}