/* Layout only. Colour, type, spacing and visual primitives come from /bsm-design-system/bsm.css. */
* { box-sizing: border-box; }
html { overflow-x: hidden; background: var(--surface-inverse); }
body { min-width: 320px; min-height: 100vh; margin: 0; overflow-x: hidden; font-family: var(--font-sans); color: var(--text-body); background: var(--surface-page); }
a { color: inherit; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }

.portal-page--home { display: grid; grid-template-rows: 1fr auto; min-height: 100vh; color: var(--text-on-navy); background: var(--surface-inverse); }
.portal-home { position: relative; display: flex; flex-direction: column; width: min(100%, 760px); min-height: calc(100vh - 60px); margin: 0 auto; padding: max(var(--space-5), env(safe-area-inset-top)) var(--space-5) var(--space-7); overflow: hidden; }
.portal-brand { display: block; }
.portal-brand__logo { display: block; width: min(220px, 66vw); height: auto; }
.portal-brand__emblem,
.portal-brand__name { display: none; }
.portal-hero { max-width: 570px; margin: auto 0; padding: var(--space-8) 0 var(--space-6); }
.portal-label { margin: 0 0 var(--space-3); color: var(--text-on-navy-muted); font: var(--text-mono); letter-spacing: var(--tracking-mono); }
h1 { margin: 0; color: var(--text-heading); font: var(--text-display); letter-spacing: -.045em; }
.portal-page--home h1 { color: var(--text-on-navy-strong); }
.portal-rule { width: 110px; height: 4px; margin: var(--space-5) 0; background: var(--accent); }
.portal-intro { max-width: 48ch; margin: 0 0 var(--space-6); color: var(--text-on-navy); font: var(--text-copy); font-size: clamp(17px, 4.6vw, 21px); }
.portal-button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: var(--space-3) var(--space-5); border-radius: var(--radius-sm); font-size: 14px; font-weight: var(--fw-semibold); text-decoration: none; }
.portal-button--primary { color: var(--text-on-navy-strong); background: var(--accent); }
.portal-button--primary:hover { background: var(--accent-hover); }
.portal-note { max-width: 54ch; margin: var(--space-5) 0 0; color: var(--text-on-navy-muted); font-size: 14px; line-height: 1.5; }
.portal-footer { padding: var(--space-4) var(--space-5) max(var(--space-5), env(safe-area-inset-bottom)); border-top: 1px solid var(--border-on-navy); color: var(--text-on-navy-muted); font-size: 13px; text-align: center; }
.portal-footer a { color: var(--text-on-navy-strong); }

.portal-topbar { display: flex; min-height: 76px; align-items: center; justify-content: space-between; padding: max(var(--space-4), env(safe-area-inset-top)) var(--space-5) var(--space-4); background: var(--surface-inverse); }
.portal-brand--compact img { width: min(174px, 56vw); }
.portal-nav-link { color: var(--text-on-navy-strong); font-size: 14px; font-weight: var(--fw-semibold); text-decoration: none; }
.portal-nav-link:hover { color: var(--accent); }
.portal-work { width: min(100%, 940px); margin: 0 auto; padding: var(--space-7) var(--space-5) max(var(--space-8), env(safe-area-inset-bottom)); }
.portal-heading { max-width: 630px; }
.portal-heading > p:last-child { margin: 0; color: var(--text-secondary); font: var(--text-copy); font-size: 17px; }
.portal-app-grid { display: grid; gap: var(--space-4); margin-top: var(--space-7); }
.portal-card { display: grid; grid-template-columns: 1fr auto; gap: var(--space-2) var(--space-4); min-height: 210px; padding: var(--space-5); border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--surface-page); box-shadow: var(--shadow-card); text-decoration: none; transition: border-color .15s, box-shadow .15s, transform .15s; }
.portal-card:hover { border-color: var(--accent); box-shadow: var(--shadow-raised); transform: translateY(-2px); }
.portal-card__icon { grid-column: 2; grid-row: 1 / span 2; width: 28px; height: 28px; }
.portal-card__label { color: var(--text-muted); font: var(--text-mono); letter-spacing: var(--tracking-mono); }
.portal-card strong { color: var(--text-heading); font: var(--text-h2); }
.portal-card__description { grid-column: 1 / -1; align-self: end; color: var(--text-secondary); font: var(--text-copy); font-size: 14px; }
.portal-card__action { grid-column: 1 / -1; color: var(--accent); font-size: 14px; font-weight: var(--fw-semibold); }
.portal-session-note { max-width: 70ch; margin: var(--space-6) 0 0; color: var(--text-muted); font-size: 13px; line-height: 1.5; }

@media (min-width: 700px) {
  .portal-home { padding-right: var(--space-6); padding-left: var(--space-6); }
  .portal-work { padding-right: var(--space-6); padding-left: var(--space-6); }
  .portal-app-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 699px) {
  .portal-topbar { min-height: 120px; padding: max(var(--space-3), env(safe-area-inset-top)) var(--space-5) var(--space-3); }
  .portal-brand--compact { display: block; text-decoration: none; }
  .portal-brand--compact .portal-brand__logo { display: block; width: min(124px, 43vw); }
  .portal-brand--compact .portal-brand__emblem,
  .portal-brand--compact .portal-brand__name { display: none; }
  .portal-work { padding: var(--space-4) var(--space-4) max(var(--space-4), env(safe-area-inset-bottom)); }
  .portal-heading__eyebrow,
  .portal-heading__rule,
  .portal-heading__intro,
  .portal-session-note,
  .portal-card__label,
  .portal-card__action { display: none; }
  .portal-heading h1 { font: var(--text-h1); }
  .portal-app-grid { gap: var(--space-3); margin-top: var(--space-4); }
  .portal-card { grid-template-columns: 40px minmax(0, 1fr); grid-template-rows: auto auto; min-height: 88px; align-items: center; column-gap: var(--space-3); row-gap: var(--space-1); padding: var(--space-4); }
  .portal-card:hover { transform: none; }
  .portal-card__icon { grid-column: 1; grid-row: 1 / span 2; width: 32px; height: 32px; }
  .portal-card strong { grid-column: 2; grid-row: 1; font: var(--text-h3); }
  .portal-card__description { display: block; grid-column: 2; grid-row: 2; align-self: start; color: var(--text-secondary); font: var(--text-copy); font-size: 14px; line-height: 1.3; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}