* {
  box-sizing: border-box;
}

:root {
  --bg: #0b1020;
  --panel: #131a2b;
  --panel-2: #0f1626;
  --text: #e7ecff;
  --muted: #9fb0d1;
  --primary: #5b8cff;
  --primary-2: #3c6ff8;
  --success: #2ac770;
  --danger: #ff5d5d;
  --border: #1f2a44;
}

html, body {
  margin: 0;
  padding: 0;
  background: radial-gradient(1200px 800px at 10% -10%, #18213a 0%, #0b1020 40%, #0b1020 100%);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height: 1.55;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0));
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.3px;
}

.tabs { display: flex; gap: 8px; }
.tab {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 8px 12px;
  border-radius: 10px;
  cursor: pointer;
}
.tab.active { background: var(--primary); border-color: transparent; }

.container {
  max-width: 1100px;
  margin: 24px auto 80px;
  padding: 0 16px;
}

.view { display: none; }
.view.active { display: block; }

form {
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
}

.section-title {
  margin: 10px 0 12px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 18px;
}

.span-2 { grid-column: span 2; }

.field { display: flex; flex-direction: column; gap: 6px; }
.field label { color: var(--muted); font-weight: 600; font-size: 13px; }
.req { color: var(--danger); }
.hint { color: var(--muted); font-size: 12px; }

input, select, textarea, button {
  font-family: inherit;
  font-size: 14px;
}

input, select, textarea {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 10px 12px;
  border-radius: 10px;
  outline: none;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(91, 140, 255, 0.2);
}

.radio-group { display: flex; gap: 16px; align-items: center; }
.radio-group input { transform: translateY(1px); }

.actions { display: flex; gap: 10px; margin-top: 6px; }
.btn {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 10px 14px;
  border-radius: 10px;
  cursor: pointer;
}
.btn.primary { background: var(--primary); border-color: transparent; }
.btn.ghost { background: transparent; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.result {
  margin-top: 16px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
}
.result-grid { display: grid; grid-template-columns: 280px 1fr; gap: 16px; }
.qrcode { width: 260px; height: 260px; margin: 0 auto; background: #0a0f1d; border-radius: 12px; display: grid; place-items: center; }
.qr-card { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 12px; }
.text-card { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 12px; }
.qr-actions { display: flex; gap: 8px; margin-top: 8px; }

.encoded {
  white-space: pre-wrap;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 13px;
  color: #d8e1ff;
}

.confirm {
  background: rgba(42, 199, 112, 0.12);
  border: 1px solid rgba(42, 199, 112, 0.4);
  color: #c8ffd8;
  padding: 10px 12px;
  border-radius: 10px;
  margin-bottom: 12px;
}

.hidden { display: none; }

.footer {
  position: sticky;
  bottom: 0;
  width: 100%;
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  background: linear-gradient(0deg, rgba(255,255,255,0.02), rgba(255,255,255,0));
  text-align: center;
}

/* Scanner */
.scan-wrapper { background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01)); border: 1px solid var(--border); border-radius: 16px; padding: 16px; }
.qr-reader { width: 100%; max-width: 480px; margin: 0 auto; border-radius: 12px; overflow: hidden; }
.scan-actions { display: flex; gap: 8px; justify-content: center; margin: 12px 0; }
.password-card { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 12px; max-width: 520px; margin: 0 auto; }
.pwd-message { margin-top: 8px; color: var(--muted); font-size: 13px; }
.scan-result { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 12px; max-width: 520px; margin: 12px auto 0; }

@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr; }
  .span-2 { grid-column: span 1; }
  .result-grid { grid-template-columns: 1fr; }
  .qrcode { width: 240px; height: 240px; }
}