*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --border: #2a2d3d;
  --accent: #6c63ff;
  --accent-hover: #574fd6;
  --danger: #e05260;
  --success: #3ecf8e;
  --text: #e2e4ed;
  --muted: #7b7f99;
  --radius: 10px;
  --font: 'Inter', system-ui, sans-serif;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem 1rem;
}

header {
  text-align: center;
  margin-bottom: 2.5rem;
}

header h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

header p {
  color: var(--muted);
  margin-top: 0.5rem;
  font-size: 0.95rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  width: 100%;
  max-width: 560px;
}

label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

textarea, input[type="text"], input[type="password"], select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 0.65rem 0.9rem;
  font-size: 0.95rem;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.15s;
}

textarea { resize: vertical; min-height: 140px; }

textarea:focus, input:focus, select:focus {
  border-color: var(--accent);
}

.field { margin-bottom: 1.25rem; }

.row { display: flex; gap: 1rem; }
.row .field { flex: 1; }

button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.4rem;
  border-radius: 6px;
  border: none;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
}

.btn-primary { background: var(--accent); color: #fff; width: 100%; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-danger { background: var(--danger); color: #fff; width: 100%; }
.btn-danger:hover { filter: brightness(1.1); }

.result {
  margin-top: 1.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem;
}

.result-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.result-url {
  word-break: break-all;
  font-size: 0.9rem;
  color: var(--accent);
  margin-bottom: 0.9rem;
}

.copy-btn {
  background: var(--border);
  color: var(--text);
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
  border-radius: 5px;
}
.copy-btn:hover { background: #353847; }

.notice {
  margin-top: 0.9rem;
  font-size: 0.82rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.secret-reveal {
  background: var(--bg);
  border: 1px solid var(--success);
  border-radius: 6px;
  padding: 1rem;
  font-family: monospace;
  white-space: pre-wrap;
  word-break: break-all;
  margin-top: 1.25rem;
  font-size: 0.95rem;
  color: var(--success);
}

.burned-notice {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--danger);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.error-notice {
  margin-top: 1rem;
  color: var(--danger);
  font-size: 0.9rem;
}

.hidden { display: none; }

footer {
  margin-top: 3rem;
  color: var(--muted);
  font-size: 0.8rem;
  text-align: center;
}