:root {
  --bg: #f3f4f6;
  --card: #ffffff;
  --primary: #2563eb;
  --primary-d: #1d4ed8;
  --text: #111827;
  --muted: #6b7280;
  --line: #e5e7eb;
  --danger: #dc2626;
  --done: #9ca3af;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
}
.view { max-width: 560px; margin: 0 auto; padding: env(safe-area-inset-top) 14px 24px; }

/* 登录 */
.card {
  margin-top: 18vh;
  background: var(--card);
  border-radius: 16px;
  padding: 24px 20px;
  box-shadow: 0 8px 30px rgba(0,0,0,.06);
}
.card h1 { margin: 0 0 4px; font-size: 22px; }
.sub { margin: 0 0 18px; color: var(--muted); font-size: 13px; }
label { display: block; font-size: 13px; color: var(--muted); margin: 12px 0 6px; }
input {
  width: 100%; padding: 12px 14px;
  border: 1px solid var(--line); border-radius: 10px;
  font-size: 16px; outline: none; background: #fff;
}
input:focus { border-color: var(--primary); }
button { font-size: 16px; cursor: pointer; border: none; border-radius: 10px; }
.primary {
  width: 100%; margin-top: 14px; padding: 12px;
  background: var(--primary); color: #fff; font-weight: 600;
}
.primary:active { background: var(--primary-d); }
.primary:disabled { opacity: .6; }
.code-group { margin-top: 4px; }
.hint { font-size: 12px; color: var(--primary); margin: 6px 2px; }
.error { color: var(--danger); font-size: 13px; min-height: 18px; margin-top: 10px; }

/* 主视图 */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 2px 10px;
}
.title { font-size: 20px; font-weight: 700; }
.counter { font-size: 12px; color: var(--muted); margin-top: 2px; }
.actions { display: flex; gap: 8px; }
.ghost {
  background: #fff; border: 1px solid var(--line);
  padding: 8px 14px; color: var(--text); font-size: 14px;
}
.ghost:active { background: #f0f0f0; }

.add-form { display: flex; gap: 8px; align-items: center; margin-bottom: 12px; }
.add-form #add-input { flex: 1; }
.due-input { width: 130px; padding: 12px 8px; }
.add-form .primary { width: auto; margin: 0; padding: 12px 18px; }

.tabs { display: flex; gap: 8px; margin-bottom: 10px; }
.tab {
  flex: 1; padding: 9px; background: #fff; border: 1px solid var(--line);
  color: var(--muted); font-size: 14px;
}
.tab.on { background: var(--primary); color: #fff; border-color: var(--primary); }

.list { list-style: none; margin: 0; padding: 0; }
.item {
  display: flex; align-items: center; gap: 12px;
  background: #fff; border: 1px solid var(--line);
  border-radius: 12px; padding: 12px 14px; margin-bottom: 8px;
}
.item.done .text { text-decoration: line-through; color: var(--done); }
.check {
  flex: 0 0 26px; width: 26px; height: 26px; border-radius: 50%;
  border: 2px solid var(--primary); background: #fff; color: #fff;
  font-size: 16px; line-height: 1; padding: 0;
}
.item.done .check { background: var(--primary); }
.body { flex: 1; min-width: 0; }
.text { word-break: break-word; }
.due { font-size: 12px; color: var(--muted); margin-top: 3px; }
.del {
  flex: 0 0 auto; background: transparent; font-size: 18px;
  padding: 4px 6px; opacity: .6;
}
.del:active { opacity: 1; }
.empty {
  text-align: center; color: var(--muted); padding: 40px 0; font-size: 14px;
  background: transparent; border: none;
}
.status { text-align: center; color: var(--muted); font-size: 12px; margin-top: 14px; }

/* 同步令牌面板 */
.token-view {
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 14px; margin-bottom: 12px;
}
.token-title { font-weight: 600; font-size: 15px; margin-bottom: 6px; }
.token-desc { font-size: 12px; color: var(--muted); margin: 0 0 10px; line-height: 1.5; }
.token-text {
  width: 100%; height: 72px; margin-top: 8px; padding: 10px;
  border: 1px solid var(--line); border-radius: 10px; font-size: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; resize: none;
  word-break: break-all;
}