:root {
  --bg: #020617;
  --panel: #0f172a;
  --border: #1e293b;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --accent: #6366f1;
  --green: #22c55e;
  --blue: #0ea5e9;
  --red: #ef4444;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(circle at top, #0f172a, #020617);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

.container {
  max-width: 1100px;
  margin: 40px auto;
  padding: 20px;
}

.header {
  margin-bottom: 30px;
}

.brand {
  font-size: 32px;
  font-weight: 900;
}

.owner {
  font-size: 14px;
  color: var(--muted);
  margin-top: 6px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 28px;
  box-shadow: 0 10px 30px rgba(0,0,0,.5);
}

h3 { margin-top: 0; }

textarea {
  width: 100%;
  height: 220px;
  background: #020617;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  font-family: ui-monospace, monospace;
  font-size: 14px;
  resize: vertical;
  margin-top: 10px;
}

select, input[type=file] {
  width: 100%;
  margin-top: 10px;
  padding: 10px;
  border-radius: 10px;
  background: #020617;
  color: var(--text);
  border: 1px solid var(--border);
}

button {
  margin-top: 14px;
  padding: 12px 18px;
  border-radius: 12px;
  border: none;
  color: white;
  font-weight: 700;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 25px rgba(99,102,241,.45);
}

.btn-main { background: var(--accent); }
.btn-copy { background: var(--green); }
.btn-download { background: var(--blue); }

.btn-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.note {
  font-size: 13px;
  color: var(--muted);
  margin-top: 8px;
}

.status {
  margin-top: 8px;
  font-size: 13px;
}

.status.success { color: var(--green); }
.status.error { color: var(--red); }

footer {
  text-align: center;
  margin-top: 40px;
  font-size: 13px;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.mode {
  background: #020617;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  text-decoration: none;
  color: var(--text);
  transition: transform .15s ease, box-shadow .15s ease, border .15s;
}

.mode:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 40px rgba(0,0,0,.6);
  border-color: var(--accent);
}

.mode.danger:hover {
  border-color: #ef4444;
}

.mode h4 {
  margin: 10px 0 6px;
  font-size: 18px;
}

.mode p {
  font-size: 14px;
  color: var(--muted);
}

.icon {
  font-size: 28px;
  }