.tb-layout { max-width: 1080px; margin: 0 auto; padding: 32px 16px 64px; font-family: Inter, system-ui, sans-serif; }
.tb-hero h1 { font-size: 28px; font-weight: 700; color: #111827; margin: 0 0 8px; }
.tb-tagline { font-size: 15px; color: #4B5563; margin: 0 0 20px; }
.tb-why { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.tb-why li { font-size: 14px; line-height: 1.6; color: #374151; padding-left: 4px; }
.tb-why i { color: #6B7280; width: 18px; margin-right: 6px; }

.tb-legend { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 28px 0; padding: 18px;
  border: 1px solid #E5E7EB; border-radius: 12px; background: #F9FAFB; }
.tb-legend-card p { font-size: 13px; line-height: 1.6; color: #374151; margin: 8px 0 6px; }
.tb-legend-card small { font-size: 12px; color: #6B7280; }
@media (max-width: 640px) { .tb-legend { grid-template-columns: 1fr; } }

.tb-chip { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .02em; text-transform: uppercase;
  padding: 3px 9px; border-radius: 999px; }
.tb-chip-baseline { background: #DBEAFE; color: #1D4ED8; }
.tb-chip-working { background: #D1FAE5; color: #047857; }
.tb-chip-na { background: #F3F4F6; color: #6B7280; }

.tb-progress { display: flex; align-items: center; gap: 16px; margin: 24px 0; }
.tb-progress-ring { width: 64px; height: 64px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 auto;
  background: conic-gradient(#10B981 calc(var(--tb-pct) * 1%), #E5E7EB 0); }
.tb-progress-num { width: 50px; height: 50px; border-radius: 50%; background: #fff; display: grid; place-items: center;
  font-size: 13px; font-weight: 700; color: #111827; }
.tb-progress-text { font-size: 14px; color: #374151; }
.tb-progress-split { display: block; font-size: 12px; color: #6B7280; margin-top: 2px; }
.tb-login-note { font-size: 13px; color: #6B7280; margin: 20px 0; }

.tb-group { margin-top: 36px; }
.tb-group h2 { font-size: 18px; font-weight: 700; color: #111827; margin: 0 0 4px; }
.tb-group-sub { font-size: 13px; color: #6B7280; margin: 0 0 16px; }
.tb-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr)); gap: 14px; }
.tb-card { display: flex; flex-direction: column; gap: 10px; padding: 16px; border: 1px solid #E5E7EB; border-radius: 12px;
  background: #fff; text-decoration: none; transition: border-color .15s ease, transform .15s ease; }
.tb-card:hover { border-color: #9CA3AF; transform: translateY(-1px); }
.tb-card.is-done { border-left: 3px solid #10B981; }
.tb-card-top { display: flex; align-items: center; gap: 10px; }
.tb-card-icon { width: 32px; height: 32px; border-radius: 8px; background: #F3F4F6; color: #374151;
  display: grid; place-items: center; flex: 0 0 auto; font-size: 14px; }
.tb-card-top h3 { font-size: 15px; font-weight: 600; color: #111827; margin: 0; flex: 1; }
.tb-card-badge { font-size: 11px; font-weight: 700; color: #047857; background: #D1FAE5; padding: 2px 8px; border-radius: 999px; }
.tb-card-baseline { font-size: 13px; line-height: 1.6; color: #4B5563; margin: 0; flex: 1; }
.tb-card-foot { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.tb-card-cta { font-size: 12px; font-weight: 600; color: #374151; }
.tb-empty { margin: 40px 0; padding: 24px; text-align: center; font-size: 14px; color: #6B7280;
  border: 1px dashed #D1D5DB; border-radius: 12px; }

.tb-keeping { margin-top: 48px; padding-top: 28px; border-top: 1px solid #E5E7EB; }
.tb-keeping h2 { font-size: 18px; font-weight: 700; color: #111827; margin: 0 0 16px; }
.tb-keeping-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.tb-keeping-grid h3 { font-size: 14px; font-weight: 600; color: #111827; margin: 0 0 6px; }
.tb-keeping-grid p { font-size: 13px; line-height: 1.6; color: #4B5563; margin: 0; }

@media (prefers-reduced-motion: reduce) { .tb-card { transition: none; } .tb-card:hover { transform: none; } }

.tb-featured { display: flex; align-items: center; gap: 14px; padding: 16px; margin: 20px 0 8px;
  border: 1px solid #D1D5DB; border-radius: 12px; background: #F9FAFB; text-decoration: none; }
.tb-featured:hover { border-color: #9CA3AF; }
.tb-featured-body { flex: 1; display: flex; flex-direction: column; gap: 3px; }
.tb-featured-body strong { font-size: 14px; color: #111827; }
.tb-featured-body span { font-size: 13px; color: #6B7280; }
.tb-search-wrap { margin: 20px 0 8px; }
.tb-search { width: 100%; max-width: 420px; padding: 9px 14px; font-size: 14px; font-family: inherit;
  border: 1px solid #D1D5DB; border-radius: 999px; background: #fff; color: #111827; }
.tb-search:focus { outline: 2px solid #93C5FD; outline-offset: 1px; border-color: #3B82F6; }
.tb-group-count { font-size: 12px; font-weight: 500; color: #6B7280; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0; }