/* =============================================================
   Terms.Law Page Shell  —  /shared/page-shell.css
   Full-width layout + sticky floating section nav + tabs +
   default-folded accordion sections. Reusable across service
   pages and hubs (demand-letter-lawyer is the reference impl).
   Pairs with /shared/page-shell.js. Uses CLAUDE.md §6 color
   vars with literal fallbacks. NO WALL OF TEXT — fold by default.
   ============================================================= */

:root{
  --ps-max: 1340px;
  --ps-rail: 246px;
  --ps-accent: var(--color-primary, #2563eb);
  --ps-accent-dark: var(--color-primary-dark, #1d4ed8);
  --ps-surface: var(--color-surface, #ffffff);
  --ps-border: var(--color-border, #e2e8f0);
  --ps-text: var(--color-text, #0f172a);
  --ps-muted: var(--color-text-secondary, #475569);
  --ps-bg-soft: var(--color-bg-soft, #f1f5f9);
}

/* ---- Full-width layout: sticky rail + content column ---- */
.ps-layout{
  max-width: var(--ps-max);
  margin: 0 auto;
  padding: 1.5rem 1.5rem 0;
  display: grid;
  grid-template-columns: var(--ps-rail) minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}
.ps-content{ min-width: 0; }
.ps-content > * + * { margin-top: 1.25rem; }

/* ---- Sticky floating rail (desktop) ---- */
.ps-rail{
  position: sticky;
  top: 4.25rem; /* clear the sticky language-flag bar */
  align-self: start;
  max-height: calc(100vh - 5.5rem);
  overflow: auto;
  background: var(--ps-surface);
  border: 1px solid var(--ps-border);
  border-radius: 16px;
  padding: 0.85rem;
  box-shadow: 0 6px 26px rgba(15, 23, 42, 0.06);
}
.ps-rail-title{
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.09em; text-transform: uppercase;
  color: var(--ps-muted); padding: 0.35rem 0.65rem 0.55rem;
}
.ps-rail a{
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.6rem 0.7rem; border-radius: 10px;
  color: var(--ps-muted); text-decoration: none;
  font-size: 0.92rem; font-weight: 500; line-height: 1.25;
  transition: background 0.15s ease, color 0.15s ease;
}
.ps-rail a .ps-dot{
  width: 7px; height: 7px; border-radius: 50%; background: var(--ps-border);
  flex: none; transition: background 0.15s ease, transform 0.15s ease;
}
.ps-rail a:hover{ background: var(--ps-bg-soft); color: var(--ps-text); }
.ps-rail a.is-active{ background: #eff6ff; color: var(--ps-accent-dark); font-weight: 600; }
.ps-rail a.is-active .ps-dot{ background: var(--ps-accent); transform: scale(1.4); }
.ps-expand-all{
  margin-top: 0.5rem; width: 100%; border: 1px dashed var(--ps-border); background: transparent;
  color: var(--ps-muted); font: inherit; font-size: 0.82rem; font-weight: 600;
  padding: 0.6rem; border-radius: 10px; cursor: pointer; transition: border-color 0.15s, color 0.15s;
}
.ps-expand-all:hover{ border-color: var(--ps-accent); color: var(--ps-accent); }

/* ---- Generic block / card helpers ---- */
.ps-block{ scroll-margin-top: 88px; }
.ps-card{
  background: var(--ps-surface); border: 1px solid var(--ps-border);
  border-radius: 16px; padding: 1.5rem;
}
.ps-card > h2{ font-size: 1.3rem; margin-bottom: 1rem; }
.ps-prose{ max-width: 72ch; }

/* ---- Highlight CTA band (stays visible, not folded) ---- */
.ps-cta-band{
  background: linear-gradient(135deg, #eff6ff 0%, #e0e7ff 100%);
  border: 1px solid #c7d2fe; border-radius: 16px; padding: 1.75rem 1.5rem; text-align: center;
}
.ps-cta-band h2{ font-size: 1.3rem; margin-bottom: 0.5rem; }
.ps-cta-band p{ color: var(--ps-muted); margin-bottom: 1.1rem; }

/* ---- Accordion (folded by default) ---- */
.ps-acc{
  background: var(--ps-surface); border: 1px solid var(--ps-border);
  border-radius: 16px; overflow: clip; scroll-margin-top: 88px;
  transition: box-shadow 0.15s ease, border-color 0.15s ease;
}
.ps-acc.is-open{ box-shadow: 0 8px 30px rgba(15, 23, 42, 0.07); border-color: #cdd9ea; }
.ps-acc-head{
  width: 100%; text-align: left; background: transparent; border: 0; cursor: pointer; font-family: inherit;
  display: flex; align-items: center; gap: 1rem; justify-content: space-between;
  padding: 1.15rem 1.4rem;
}
.ps-acc-head-text{ display: flex; flex-direction: column; gap: 0.15rem; min-width: 0; }
.ps-acc-title{ font-size: 1.15rem; font-weight: 700; color: var(--ps-text); line-height: 1.3; }
.ps-acc-sub{ font-size: 0.85rem; font-weight: 500; color: var(--ps-muted); line-height: 1.4; }
.ps-acc-ic{ flex: none; font-size: 1.7rem; line-height: 1; color: var(--ps-accent); transition: transform 0.25s ease; }
.ps-acc.is-open .ps-acc-ic{ transform: rotate(90deg); }
.ps-acc-head:hover{ background: var(--ps-bg-soft); }
.ps-acc-head:hover .ps-acc-sub{ color: var(--ps-text); }
.ps-acc-body-wrap{ display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.28s ease; }
.ps-acc.is-open .ps-acc-body-wrap{ grid-template-rows: 1fr; }
.ps-acc-body{ overflow: hidden; min-height: 0; }
.ps-acc-body-inner{ padding: 0.25rem 1.4rem 1.5rem; }

/* ---- Tabs ---- */
.ps-tabs{
  background: var(--ps-surface); border: 1px solid var(--ps-border);
  border-radius: 16px; overflow: clip; scroll-margin-top: 88px;
}
.ps-tablist{
  display: flex; gap: 0.3rem; padding: 0.5rem;
  background: var(--ps-bg-soft); border-bottom: 1px solid var(--ps-border); overflow-x: auto;
}
.ps-tab{
  flex: 1 1 auto; white-space: nowrap; border: 0; background: transparent; cursor: pointer; font-family: inherit;
  padding: 0.7rem 1rem; border-radius: 10px; font-size: 0.95rem; font-weight: 600;
  color: var(--ps-muted); min-height: 44px; transition: background 0.15s, color 0.15s, box-shadow 0.15s;
}
.ps-tab:hover{ color: var(--ps-text); }
.ps-tab.is-active{ background: var(--ps-surface); color: var(--ps-accent-dark); box-shadow: 0 1px 5px rgba(15, 23, 42, 0.09); }
.ps-panel{ display: none; padding: 1.5rem; }
.ps-panel.is-active{ display: block; animation: psFade 0.2s ease; }
@keyframes psFade{ from{ opacity: 0; transform: translateY(4px); } to{ opacity: 1; transform: none; } }

/* ---- Mobile: rail collapses to a sticky horizontal pill bar ---- */
@media (max-width: 1023px){
  .ps-layout{ grid-template-columns: 1fr; gap: 1rem; padding: 0.75rem 1rem 0; }
  .ps-rail{
    position: sticky; top: 0; z-index: 50;
    display: flex; gap: 0.45rem; overflow-x: auto; max-height: none;
    padding: 0.55rem 0.65rem; border-radius: 0; border-left: 0; border-right: 0;
    -webkit-overflow-scrolling: touch; box-shadow: 0 2px 12px rgba(15, 23, 42, 0.07);
  }
  .ps-rail-title{ display: none; }
  .ps-rail a{ white-space: nowrap; padding: 0.5rem 0.85rem; border: 1px solid var(--ps-border); border-radius: 999px; font-size: 0.86rem; }
  .ps-rail a .ps-dot{ display: none; }
  .ps-rail a.is-active{ border-color: var(--ps-accent); }
  .ps-expand-all{ display: none; }
}
@media (max-width: 600px){
  .ps-acc-head{ padding: 1rem 1.1rem; }
  .ps-acc-body-inner{ padding: 0.25rem 1.1rem 1.25rem; }
  .ps-panel{ padding: 1.1rem; }
}