:root { --radius: 16px; --pad: 24px; --gap: 12px; }
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: #f6f7f9;
  color: #111;
  display: flex; align-items: center; justify-content: center;
}
.card {
  width: min(760px, 94vw);
  background: #fff;
  border-radius: var(--radius);
  box-shadow: 0 8px 30px rgba(0,0,0,.08);
  padding: clamp(16px, 3vw, var(--pad));
}
h1 { margin: 0 0 4px; font-size: clamp(24px, 4vw, 32px); }
.subtitle { margin: 0 0 20px; color: #444; }

.form-row { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
label { font-weight: 600; }
input[type="text"] {
  padding: 10px 12px;
  border: 1px solid #d0d7de;
  border-radius: 10px;
  font-size: 16px;
}
input[type="text"]:focus { outline: 2px solid #99c2ff; border-color: #99c2ff; }

.buttons { display: flex; gap: var(--gap); margin-top: 6px; }
button {
  appearance: none;
  border: 1px solid #d0d7de;
  background: #fbfbfb;
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 16px; cursor: pointer;
}
button:hover { background: #f0f2f5; }
button.secondary { border-style: dashed; }
button.danger { border-color: #e8b2b2; background: #fff6f6; }
button.danger:hover { background: #ffecec; }

.result { margin-top: 14px; min-height: 1.25em; }
.footer { margin-top: 18px; font-size: 12px; color: #666; text-align: center; }

.saved { margin-top: 20px; }
.saved__header { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.saved__actions { display: flex; gap: 8px; flex-wrap: wrap; }
.table { width: 100%; border-collapse: collapse; margin-top: 10px; }
.table th, .table td { border-top: 1px solid #e5e7eb; padding: 10px 8px; text-align: left; }
.muted { color: #666; font-size: 14px; }

@media (prefers-color-scheme: dark) {
  body { background: #0b0f14; color: #e8e8e8; }
  .card { background: #0f1620; box-shadow: 0 8px 30px rgba(0,0,0,.35); }
  input[type="text"] { background: #0b0f14; color: #e8e8e8; border-color: #2b3440; }
  input[type="text"]:focus { outline-color: #3b82f6; border-color: #3b82f6; }
  button { background: #14202b; border-color: #2b3440; color: #e8e8e8; }
  button:hover { background: #192534; }
  .subtitle, .footer, .muted { color: #a8b3c2; }
  .table th, .table td { border-color: #233040; }
  button.danger { border-color: #704a4a; background: #2a1717; }
  button.danger:hover { background: #341d1d; }
}