:root {
  --bg: #0b1020;
  --card: rgba(255, 255, 255, 0.06);
  --card-border: rgba(255, 255, 255, 0.12);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.65);
  --accent: #7c4dff;
  --accent2: #00d4ff;
  --danger: #ff4d4f;
  --ok: #2bd576;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: radial-gradient(1000px 600px at 20% 10%, rgba(124, 77, 255, 0.35), transparent 60%),
    radial-gradient(900px 600px at 80% 20%, rgba(0, 212, 255, 0.25), transparent 60%),
    radial-gradient(1200px 800px at 50% 100%, rgba(43, 213, 118, 0.12), transparent 55%),
    var(--bg);
}

.container {
  max-width: 920px;
  margin: 0 auto;
  padding: 36px 18px 28px;
}

.header h1 {
  margin: 0;
  font-size: 34px;
  letter-spacing: -0.02em;
}

.sub {
  margin: 10px 0 0;
  color: var(--muted);
}

.card {
  margin-top: 22px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 18px;
  backdrop-filter: blur(10px);
}

.form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 16px;
}

@media (max-width: 720px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

.row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.label {
  font-weight: 650;
  color: rgba(255, 255, 255, 0.88);
  font-size: 14px;
}

input[type="file"],
input[type="number"],
select {
  width: 100%;
  padding: 10px 12px;
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  color: var(--text);
  outline: none;
}

input[type="number"]::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

input[type="range"] {
  width: 100%;
}

.hint {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
}

.inline {
  display: flex;
  align-items: center;
  gap: 10px;
}

.badge {
  min-width: 44px;
  text-align: center;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(0, 0, 0, 0.22);
  color: rgba(255, 255, 255, 0.9);
  font-variant-numeric: tabular-nums;
}

.toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(0, 0, 0, 0.22);
  user-select: none;
}

.toggle input {
  transform: translateY(0.5px);
}

.actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 4px;
}

button {
  appearance: none;
  border: 0;
  cursor: pointer;
  padding: 11px 14px;
  border-radius: 12px;
  font-weight: 700;
  color: white;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 10px 30px rgba(124, 77, 255, 0.22);
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.status {
  color: var(--muted);
  font-size: 13px;
}

.status[data-kind="error"] {
  color: rgba(255, 77, 79, 0.95);
}

.status[data-kind="ok"] {
  color: rgba(43, 213, 118, 0.95);
}

.footer {
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.55);
  font-size: 12px;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New",
    monospace;
  font-size: 0.95em;
}