:root {
  color-scheme: dark;
  font-family: ui-rounded, "SF Pro Rounded", "Microsoft YaHei", system-ui, sans-serif;
  background: #120f1a;
  color: #f6eef9;
  font-synthesis: none;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 5%, #5b365d 0, transparent 35%),
    radial-gradient(circle at 90% 15%, #263f5d 0, transparent 34%),
    #120f1a;
}
button, input, textarea { font: inherit; }
button { cursor: pointer; }
.shell { width: min(100% - 28px, 720px); margin: 0 auto; padding: 42px 0 80px; }
header { padding: 0 8px 20px; }
.eyebrow { margin: 0; color: #d7a9d2; letter-spacing: .13em; text-transform: uppercase; font-size: .78rem; }
h1 { margin: 6px 0 0; font-size: clamp(2.2rem, 9vw, 4rem); line-height: 1; }
.subtitle { margin: 10px 0 0; color: #cfc3d4; }
.card {
  margin-top: 16px;
  padding: 18px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 22px;
  background: rgba(31, 25, 42, .86);
  box-shadow: 0 22px 55px rgba(0,0,0,.25);
  backdrop-filter: blur(18px);
}
h2 { margin: 0 0 14px; font-size: 1.05rem; }
label { display: grid; gap: 8px; color: #d9cdda; font-size: .92rem; }
input, textarea {
  width: 100%;
  border: 1px solid #55475f;
  border-radius: 14px;
  padding: 12px 14px;
  color: #fff;
  background: #17131f;
  resize: vertical;
}
button {
  min-height: 44px;
  border: 0;
  border-radius: 14px;
  padding: 10px 16px;
  color: #1b1020;
  background: #eac6df;
  font-weight: 700;
}
.quiet { color: #e8dbea; background: rgba(255,255,255,.08); font-weight: 600; }
.date-nav { display: grid; grid-template-columns: 1fr 1.4fr 1fr; gap: 8px; margin-top: 4px; }
.date-button { color: #f8eff7; background: #503a55; }
.form-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; margin-top: 12px; align-items: center; }
.section-heading { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.items { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.item { padding: 14px; border-radius: 16px; background: #17131f; border: 1px solid rgba(255,255,255,.08); }
.item.done .item-text { text-decoration: line-through; color: #918793; }
.item-text { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.item-meta { margin: 7px 0 0; color: #a99dad; font-size: .78rem; }
.actions { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 12px; }
.actions button { min-height: 36px; padding: 7px 11px; font-size: .82rem; }
.status, .error { min-height: 1.25em; color: #bdb0c2; }
.error { color: #ffb0b9; }
[hidden] { display: none !important; }
@media (max-width: 520px) {
  .shell { width: min(100% - 20px, 720px); padding-top: 26px; }
  .form-row { grid-template-columns: 1fr; }
  .date-nav { grid-template-columns: 1fr 1.2fr 1fr; }
  .date-nav button { padding-inline: 8px; font-size: .86rem; }
}