/*
 * ProPakit RPMpro - Layout primitives · 3a "Ledger Signal"
 * Quy uoc: tien to l-. Chi dung bien trong tokens.css, khong hardcode mau/khoang cach.
 */

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--brand-bg);
  color: var(--color-text);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 { margin: 0; line-height: var(--line-height-tight); text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
a { color: var(--brand-text); text-underline-offset: 0.2em; }
a:hover { color: var(--brand-hover); }

:focus { outline: none; }
:focus-visible {
  outline: var(--focus-ring-width) solid var(--brand-focus);
  outline-offset: var(--focus-ring-offset);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: var(--duration-reduced) !important;
    transition-property: opacity !important;
    animation: none !important;
  }
}

.l-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

/* ---------- Primitives ---------- */
.l-container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.l-stack { display: flex; flex-direction: column; gap: var(--space-4); }
.l-stack-sm { display: flex; flex-direction: column; gap: var(--space-2); }
.l-stack-lg { display: flex; flex-direction: column; gap: var(--space-6); }

.l-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.l-row--wrap { flex-wrap: wrap; }
.l-row--between { justify-content: space-between; }
.l-row--end { justify-content: flex-end; }

.l-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fill, minmax(min(var(--col-min-xl), 100%), 1fr));
}

/* ======================================================================
   3 shell: staff (dashboard), patient (PWA), public (booking/widget, sau S5)
   ====================================================================== */

/* ---------- Staff: mat do cao, sidebar nhieu muc ---------- */
.l-shell-staff {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  min-height: 100vh;
  background: var(--color-surface);
}
.l-shell-staff .l-shell-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  background: var(--color-bg);
  border-right: var(--border-width-1) solid var(--color-border);
  padding: var(--space-5) var(--space-3);
  overflow-y: auto;
  scrollbar-width: thin;
}
.l-shell-staff .l-shell-sidebar > .c-wordmark { padding-inline: var(--space-2); }
.l-shell-staff .l-shell-sidebar__footer {
  margin-top: auto;
  padding: var(--space-3) var(--space-2) 0;
  border-top: var(--border-width-1) solid var(--color-border-subtle);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}
.l-shell-staff .l-shell-main {
  container-type: inline-size;
  min-width: 0;
  padding: var(--space-5) var(--space-6) var(--space-7);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

/* Page header dung chung trong l-shell-main */
.l-page-header { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; }
.l-page-header__eyebrow { font-size: var(--font-size-xs); font-weight: var(--font-weight-semibold); color: var(--color-text-muted); }
.l-page-header__title { font-size: var(--font-size-2xl); font-weight: var(--font-weight-bold); letter-spacing: var(--letter-spacing-display); }
.l-page-header__sub { font-size: var(--font-size-sm); color: var(--color-text-muted); }

/* ---------- Patient: 1 tac vu/man, toi da 4 tab, khong severity ---------- */
.l-shell-patient {
  max-width: var(--patient-max);
  margin-inline: auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
}
.l-shell-patient .l-shell-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding: var(--space-5) var(--space-4) var(--space-6);
}
.l-shell-patient .l-shell-nav {
  position: sticky;
  bottom: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: var(--border-width-1) solid var(--color-border);
  background: var(--color-bg);
  padding-bottom: env(safe-area-inset-bottom);
}
.l-shell-patient .l-shell-nav a {
  min-height: calc(var(--touch-min) + var(--space-5));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-1);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-muted);
  text-decoration: none;
  border-top: var(--border-width-rail) solid transparent;
}
.l-shell-patient .l-shell-nav a[aria-current="page"] {
  color: var(--color-text);
  font-weight: var(--font-weight-bold);
  border-top-color: var(--brand-primary);
}
.l-shell-patient .l-shell-nav a:hover { color: var(--color-text); }
.l-shell-patient .l-shell-nav svg, .l-shell-patient .l-shell-nav img { width: var(--size-icon-lg); height: var(--size-icon-lg); }
/* Onboarding/consent: an tab bar */
.l-shell-patient[data-flow="onboarding"] .l-shell-nav { display: none; }

/* Patient: chan severity (an toan) */
.l-shell-patient .c-severity-badge { display: none !important; }

/* ---------- Public: trung binh, khong nav, tuyen tinh ---------- */
.l-shell-public {
  max-width: var(--public-max);
  margin-inline: auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  padding: var(--space-6) var(--space-4) var(--space-7);
}
.l-shell-public__footer {
  margin-top: auto;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ---------- l-skeleton: trang thai loading ---------- */
.l-skeleton { display: block; height: var(--space-3); border-radius: var(--radius-full); background: var(--slate-200); }
.l-skeleton--lg { height: var(--space-5); }
.l-skeleton--block { height: var(--control-height-lg); border-radius: var(--radius-md); }
.l-skeleton--w50 { width: 50%; } .l-skeleton--w75 { width: 75%; }
@media (prefers-reduced-motion: no-preference) {
  .l-skeleton { animation: l-skeleton-pulse 1.4s ease-in-out infinite; }
  @keyframes l-skeleton-pulse { 50% { opacity: 0.5; } }
}


/* ---------- v2 (CR-5) ---------- */
/* Danh sach co khung: chua c-action-row / c-alert-row */
.l-list { display: flex; flex-direction: column; background: var(--color-bg); border: var(--border-width-1) solid var(--color-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); overflow: hidden; }
.l-list__header { display: flex; justify-content: space-between; align-items: center; gap: var(--space-3); padding: var(--space-4) var(--space-5); }
.l-list__title { font-size: var(--font-size-base); font-weight: var(--font-weight-semibold); }
.l-list__header + .c-alert-row { border-top-color: var(--color-border); }
/* Chia 2 cot 2:1, xep 1 cot khi main hep */
.l-split { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); gap: var(--space-4); align-items: start; }
@container (max-width: 60em) { .l-split { grid-template-columns: minmax(0, 1fr); } }
/* Toolbar: tabs trai, search phai */
.l-toolbar { display: flex; justify-content: space-between; align-items: flex-end; gap: var(--space-4); flex-wrap: wrap; border-bottom: var(--border-width-1) solid var(--color-border); }
.l-toolbar > .c-tabs { border-bottom: 0; }
.l-toolbar > .c-field { padding-bottom: var(--space-2); min-width: min(var(--col-min-xl), 100%); }
/* Header patient app */
.l-shell-patient .l-shell-header { display: flex; justify-content: space-between; align-items: center; gap: var(--space-3); padding: var(--space-4) var(--space-4) 0; }
.l-shell-staff .l-shell-sidebar { padding: var(--space-5) var(--space-3); }
.l-shell-staff .l-shell-sidebar__footer { display: flex; align-items: center; gap: var(--space-3); }

/* CR-6: skeleton co hinh dang noi dung (card + dong), mau du thay tren nen surface */
.l-skeleton--dot { width: var(--size-icon-lg); height: var(--size-icon-lg); border-radius: var(--radius-full); flex-shrink: 0; }
.l-skeleton--block { height: var(--control-height-lg); border-radius: var(--radius-md); }
.l-skeleton__label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.l-shell-patient .l-skeleton--block { height: var(--control-height); }

/* ---------- CR-8: l-auth - sign in / signup. Panel trai mau brand (tu doi theo tenant skin) ---------- */
.l-auth { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); min-height: 100vh; background: var(--brand-bg); }
.l-auth__brand { display: flex; flex-direction: column; justify-content: space-between; gap: var(--space-6); padding: var(--space-7); background: var(--brand-primary); color: var(--brand-on-primary); }
.l-auth__headline { font-size: var(--font-size-2xl); font-weight: var(--font-weight-bold); letter-spacing: var(--letter-spacing-display); line-height: var(--line-height-tight); max-width: 18ch; }
.l-auth__points { display: flex; flex-direction: column; gap: var(--space-3); margin: 0; padding: 0; list-style: none; font-size: var(--font-size-base); }
.l-auth__points li { display: flex; gap: var(--space-3); align-items: flex-start; }
.l-auth__foot { font-size: var(--font-size-xs); opacity: 0.85; }
.l-auth__tenant { display: flex; align-items: center; gap: var(--space-3); font-size: var(--font-size-xl); font-weight: var(--font-weight-bold); }
.l-auth__tenant-logo { display: grid; place-items: center; width: var(--control-height-lg); height: var(--control-height-lg); border-radius: var(--radius-md); background: var(--brand-on-primary); color: var(--brand-primary); font-size: var(--font-size-base); }
.l-auth__form { display: flex; flex-direction: column; justify-content: center; gap: var(--space-5); width: 100%; max-width: calc(var(--modal-max) * 0.9); margin-inline: auto; padding: var(--space-7) var(--space-5); }
@media (max-width: 52em) { .l-auth { grid-template-columns: minmax(0, 1fr); } .l-auth__brand { padding: var(--space-5); } .l-auth__points { display: none; } }

/* ---------- CR-10: ban phim dien thoai ----------
 * Production: <meta name="viewport" content="width=device-width, initial-scale=1, interactive-widget=resizes-content">
 * + shell cao 100dvh. JS dat data-keyboard="open" khi focusin input/textarea (visualViewport.height < innerHeight).
 * Khi mo: an tab bar + footer emergency, rut gon tieu de; thanh soan tin / nut Save dinh ngay tren ban phim. */
.l-shell-patient[data-layout="chat"] { height: 100dvh; min-height: 0; }
.l-shell-patient[data-layout="chat"] .l-shell-content { overflow-y: auto; gap: 0; padding-bottom: var(--space-3); }
.l-shell-patient[data-keyboard="open"] .l-shell-nav,
.l-shell-patient[data-keyboard="open"] [data-hide-on-keyboard] { display: none; }
.l-shell-patient[data-keyboard="open"] .l-shell-content { padding-top: var(--space-3); gap: var(--space-3); }
.l-shell-patient .l-shell-back { display: inline-flex; align-items: center; gap: var(--space-1); min-height: var(--touch-min); color: var(--brand-text); font-weight: var(--font-weight-semibold); text-decoration: none; }
.l-shell-patient[data-keyboard="open"] { height: 100dvh; min-height: 0; }
.l-shell-patient[data-keyboard="open"] .l-shell-content { overflow-y: auto; }