:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #172033;
  --muted: #6b7280;
  --primary: #2563eb;
  --primary-soft: #e8f0ff;
  --success: #16a34a;
  --warning: #f59e0b;
  --danger: #ef4444;
  --border: #e5e7eb;
  --shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: linear-gradient(135deg, #eff6ff 0%, #f8fafc 45%, #fff7ed 100%);
  min-height: 100vh;
}
button, input, textarea { font: inherit; }
button { cursor: pointer; border: 0; }

.app-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 90px;
}

.hero {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 20px;
  align-items: stretch;
  padding: 28px;
  border-radius: 28px;
  color: #fff;
  background: radial-gradient(circle at 20% 10%, rgba(255,255,255,.25), transparent 28%), linear-gradient(135deg, #1d4ed8, #0f766e);
  box-shadow: var(--shadow);
}
.hero h1 { margin: 4px 0 8px; font-size: clamp(28px, 5vw, 44px); }
.hero p { margin: 0; color: rgba(255,255,255,.84); }
.eyebrow { letter-spacing: .12em; text-transform: uppercase; font-size: 13px; }
.hero-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  padding: 22px;
  border-radius: 22px;
  background: rgba(255,255,255,.18);
  backdrop-filter: blur(10px);
}
.hero-card span { color: rgba(255,255,255,.78); }
.hero-card strong { font-size: 42px; }

.tabs {
  position: sticky;
  top: 0;
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
  margin: 18px 0;
  padding: 8px;
  border: 1px solid rgba(255,255,255,.8);
  border-radius: 18px;
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.06);
}
.tabs button {
  padding: 12px;
  border-radius: 13px;
  color: var(--muted);
  background: transparent;
}
.tabs button.active {
  color: #fff;
  background: var(--primary);
}

.grid { display: grid; gap: 16px; }
.grid.two { grid-template-columns: minmax(0, 1.35fr) minmax(320px, .65fr); align-items: start; }
.card {
  border: 1px solid rgba(226, 232, 240, .95);
  border-radius: 24px;
  padding: 22px;
  background: rgba(255,255,255,.92);
  box-shadow: var(--shadow);
}
.card h2, .card h3 { margin: 0 0 16px; }
.card-title {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 14px;
}
.muted { color: var(--muted); }

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.field { display: grid; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field span, label > span { color: var(--muted); font-size: 14px; }
input, textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 14px;
  color: var(--text);
  background: #fff;
  outline: none;
}
input:focus, textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 4px var(--primary-soft); }
textarea { min-height: 100px; resize: vertical; }

.check-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.check-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #fff;
}
.check-item input { width: 18px; height: 18px; accent-color: var(--primary); }

.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 14px;
  color: #fff;
  background: var(--primary);
}
.btn.secondary { color: var(--primary); background: var(--primary-soft); }
.btn.ghost { color: var(--muted); background: #f3f4f6; }

.metric-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.metric {
  padding: 16px;
  border-radius: 18px;
  background: #f8fafc;
}
.metric span { color: var(--muted); font-size: 13px; }
.metric strong { display: block; margin-top: 6px; font-size: 26px; }
.progress {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: #e5e7eb;
}
.progress i { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, #22c55e, #2563eb); }

.calendar-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; }
.weekday, .day-cell {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
}
.weekday { color: var(--muted); font-size: 13px; }
.day-cell { border: 1px solid var(--border); background: #fff; }
.day-cell.done { color: #166534; background: #dcfce7; border-color: #bbf7d0; }
.day-cell.partial { color: #92400e; background: #fef3c7; border-color: #fde68a; }
.day-cell.today { outline: 3px solid var(--primary-soft); }
.day-cell.empty { border: 0; background: transparent; }

.record-list { display: grid; gap: 10px; }
.record-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: #fff;
}
.badge {
  display: inline-flex;
  align-items: center;
  min-width: 58px;
  justify-content: center;
  padding: 5px 10px;
  border-radius: 999px;
  color: var(--primary);
  background: var(--primary-soft);
  font-size: 13px;
}

.login-panel {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(15, 23, 42, .42);
  backdrop-filter: blur(10px);
}
.login-card {
  width: min(380px, 100%);
  padding: 28px;
  border-radius: 24px;
  background: #fff;
  box-shadow: var(--shadow);
}
.login-card button { width: 100%; height: 46px; margin-top: 12px; border-radius: 14px; color: #fff; background: var(--primary); }
.hidden { display: none !important; }
.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%) translateY(20px);
  opacity: 0;
  pointer-events: none;
  padding: 12px 16px;
  border-radius: 999px;
  color: #fff;
  background: rgba(15,23,42,.92);
  transition: .2s ease;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.plan-card { overflow: hidden; }
.plan-content { line-height: 1.78; }
.plan-content h1 {
  margin: 6px 0 18px;
  font-size: clamp(28px, 4vw, 40px);
}
.plan-content h2 {
  margin: 30px 0 14px;
  padding-left: 12px;
  border-left: 5px solid var(--primary);
}
.plan-content h3 { margin: 22px 0 10px; color: #0f766e; }
.plan-content h4 { margin: 16px 0 8px; }
.plan-content p { margin: 8px 0; }
.plan-content ul { margin: 8px 0 16px; padding-left: 22px; }
.plan-content li { margin: 6px 0; }
.plan-content table {
  width: 100%;
  margin: 14px 0 20px;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 16px;
  box-shadow: 0 0 0 1px var(--border);
}
.plan-content th,
.plan-content td {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}
.plan-content th { background: var(--primary-soft); color: var(--primary); }
.plan-content tr:last-child td { border-bottom: 0; }

@media (max-width: 820px) {
  .app-shell { width: min(100% - 20px, 720px); padding-top: 12px; }
  .hero { grid-template-columns: 1fr; padding: 22px; border-radius: 22px; }
  .hero-card { padding: 16px; }
  .tabs {
    position: fixed;
    left: 10px;
    right: 10px;
    top: auto;
    bottom: 10px;
    margin: 0;
    z-index: 20;
  }
  .tabs button { padding: 10px 4px; font-size: 14px; }
  .grid.two, .form-grid, .check-list, .metric-grid { grid-template-columns: 1fr; }
  .card { padding: 18px; border-radius: 20px; }
  .record-item { grid-template-columns: 1fr; }
}