:root {
  --primary: #2f7d5f;
  --primary-dark: #235f47;
  --danger: #c0392b;
  --bg: #f6f7f5;
  --card-bg: #ffffff;
  --border: #e0e2df;
  --text: #222;
  --text-muted: #6b6f6c;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: 880px;
  margin: 0 auto;
  padding: 16px;
}

.topbar {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar-inner {
  max-width: 880px;
  margin: 0 auto;
  padding: 10px 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.brand { font-weight: 700; color: var(--primary-dark); font-size: 1.05rem; }

nav { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
nav a { color: var(--text); font-size: 0.92rem; }
.user-name { color: var(--text-muted); font-size: 0.88rem; }

.inline-form { display: inline; }
.link-btn {
  background: none; border: none; padding: 0; color: var(--primary);
  cursor: pointer; font-size: 0.92rem; text-decoration: underline;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 14px;
}

h1 { font-size: 1.4rem; margin: 8px 0 16px; }
h2 { font-size: 1.15rem; margin: 0 0 10px; }
h3 { font-size: 1rem; margin: 0 0 8px; }

.list { list-style: none; padding: 0; margin: 0; }
.list li { border-bottom: 1px solid var(--border); padding: 10px 0; }
.list li:last-child { border-bottom: none; }

.child-row {
  display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap;
}
.child-row .meta { color: var(--text-muted); font-size: 0.85rem; }

.btn {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--primary-dark); text-decoration: none; }
.btn.secondary { background: #fff; color: var(--primary); border: 1px solid var(--primary); }
.btn.danger { background: var(--danger); }
.btn.small { padding: 4px 10px; font-size: 0.8rem; }

form.stack { display: flex; flex-direction: column; gap: 12px; }

label { display: block; font-size: 0.88rem; margin-bottom: 4px; color: var(--text-muted); }
input[type="text"], input[type="password"], input[type="number"], input[type="date"],
select, textarea {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  background: #fff;
  color: var(--text);
}
textarea { min-height: 80px; resize: vertical; }

.field { margin-bottom: 2px; }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 560px) {
  .grid-2 { grid-template-columns: 1fr; }
}

.tag-choices, .checkbox-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag-choice {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.85rem;
  cursor: pointer;
  background: #fff;
}
.tag-choice input { margin-right: 5px; }

.exercise-item {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  margin-bottom: 8px;
}
.exercise-item-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; }
.exercise-params { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 8px; }
@media (max-width: 560px) {
  .exercise-params { grid-template-columns: 1fr 1fr; }
}

.badge {
  display: inline-block;
  background: #eef4f1;
  color: var(--primary-dark);
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 0.78rem;
  margin-right: 4px;
}
.badge.muted { background: #f0f0ef; color: var(--text-muted); }

.notice { background: #fff8e6; border: 1px solid #f0d98c; border-radius: 8px; padding: 10px 12px; font-size: 0.88rem; }
.notice.error { background: #fdecea; border-color: #f3b3ac; color: #8a2b21; }

.timeline-entry { border-left: 3px solid var(--primary); padding-left: 12px; margin-bottom: 16px; }
.timeline-date { font-weight: 600; font-size: 0.92rem; }
.timeline-type { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 6px; }

.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
@media (max-width: 560px) { .stat-grid { grid-template-columns: 1fr; } }
.stat-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; text-align: center; }
.stat-number { font-size: 1.6rem; font-weight: 700; color: var(--primary-dark); }
.stat-label { color: var(--text-muted); font-size: 0.82rem; }

.login-wrap { max-width: 360px; margin: 60px auto; }
.login-wrap .card { padding: 24px; }

table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--border); }

.actions-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }