:root { color-scheme: light dark; --bg: #F6F5F1; --card: #E9ECE8; --text: #1F2A2E; --soft: #55636A;
  --accent: #2F6F73; --on-accent: #FFFFFF; --line: #C6CDC9; --heart: #E5263B; }
@media (prefers-color-scheme: dark) { :root { --bg: #14191B; --card: #232B2E; --text: #E6EAE8;
  --soft: #A6B2B4; --accent: #7FC0C1; --on-accent: #0E2526; --line: #3A4548; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.45 system-ui, sans-serif; }
main { max-width: 40rem; margin: 0 auto; padding: 16px; }
header { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
h1 { font-size: 1.6rem; margin: 8px 0 16px; }
h2 { font-size: 1.1rem; color: var(--soft); margin: 24px 0 8px; }
ul { list-style: none; margin: 0; padding: 0; }
li { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
li > div { flex: 1; }
.name { font-weight: 600; }
.soft { color: var(--soft); }
.done { color: var(--accent); font-weight: 600; }
form.inline { margin: 0; }
button, .button { font: inherit; border-radius: 999px; padding: 10px 20px; cursor: pointer;
  border: 1px solid var(--line); background: transparent; color: var(--accent); text-decoration: none; }
button.main, .button.main { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
label { display: block; margin: 12px 0 4px; color: var(--soft); }
input, select { font: inherit; color: var(--text); background: var(--card); border: 1px solid var(--line);
  border-radius: 8px; padding: 8px 10px; width: 100%; }
fieldset { border: 1px solid var(--line); border-radius: 12px; margin: 12px 0; padding: 4px 12px 12px; }
.step { display: grid; grid-template-columns: 1fr 4.5rem auto; align-items: center; gap: 8px; }
.step .hint { grid-column: 1 / -1; }
.days { display: flex; flex-wrap: wrap; gap: 8px; }
.days label { display: flex; align-items: center; gap: 6px; margin: 0; color: var(--text);
  background: var(--card); border-radius: 999px; padding: 6px 12px; }
.days input { width: auto; }
.error { color: var(--text); font-weight: 600; }
footer { margin: 40px 0 16px; text-align: center; color: var(--soft); font-size: 0.9rem; }
.chip { display: inline-block; border: 1px solid var(--line); border-radius: 999px;
  padding: 4px 12px; margin-top: 8px; }
.heart { color: var(--heart); display: inline-block; animation: beat 1.2s ease-in-out infinite; }
@keyframes beat { 0%, 100% { transform: scale(1); } 15% { transform: scale(1.25); }
  30% { transform: scale(1); } }
@media (prefers-reduced-motion: reduce) { .heart { animation: none; } }