/* ═══════════════════════════════════════════════════════════════════════
   PRAXIS DESIGN SYSTEM — TSSG Academy Learning Management System
   Phase N UI overhaul. Light mode default, dark via [data-theme="dark"].
   Brand: royal blue #0000FE (sampled from Praxis + Academy logos).
   Style: glassmorphism, pulsing interactive elements, chevron motif.
   Load AFTER base.css/components.css on re-skinned pages.
   ═══════════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;600;700;800&family=Inter:wght@400;500;600;700&display=swap');

/* ── Tokens ─────────────────────────────────────────────────────────── */
:root {
  /* Brand constants (theme-invariant) */
  --px-brand: #0000FE;
  --px-brand-2: #2B2BFF;

  /* Light theme (default) */
  --px-bg: #F4F6FE;
  --px-bg-accent-1: rgba(0, 0, 254, 0.10);
  --px-bg-accent-2: rgba(43, 43, 255, 0.07);
  --px-surface: rgba(255, 255, 255, 0.62);
  --px-surface-strong: rgba(255, 255, 255, 0.85);
  --px-surface-input: rgba(255, 255, 255, 0.75);
  --px-glass-border: rgba(255, 255, 255, 0.70);
  --px-border: rgba(16, 20, 51, 0.12);
  --px-text: #101433;
  --px-text-muted: #464D75;
  --px-text-faint: #5A6088;
  --px-primary: #0000FE;
  --px-primary-hover: #2B2BFF;
  --px-primary-soft: rgba(0, 0, 254, 0.08);
  --px-on-primary: #FFFFFF;
  --px-success: #0B7A3E;
  --px-success-soft: rgba(11, 122, 62, 0.10);
  --px-warning: #8A5200;
  --px-warning-soft: rgba(154, 91, 0, 0.12);
  --px-danger: #C0222C;
  --px-danger-soft: rgba(192, 34, 44, 0.10);
  --px-shadow-1: 0 1px 2px rgba(16, 20, 51, 0.06), 0 4px 16px rgba(16, 20, 51, 0.06);
  --px-shadow-2: 0 4px 12px rgba(16, 20, 51, 0.08), 0 16px 40px rgba(0, 0, 254, 0.10);
  --px-pulse-color: rgba(0, 0, 254, 0.35);

  /* Scale */
  --px-radius-lg: 20px;
  --px-radius-md: 14px;
  --px-radius-sm: 10px;
  --px-blur: 18px;
  --px-font-display: 'Sora', 'Inter', system-ui, sans-serif;
  --px-font-body: 'Inter', system-ui, sans-serif;
  --px-nav-h: 72px;

  color-scheme: light;
}

:root[data-theme="dark"] {
  --px-bg: #0A0D24;
  --px-bg-accent-1: rgba(74, 86, 255, 0.16);
  --px-bg-accent-2: rgba(43, 43, 255, 0.10);
  --px-surface: rgba(24, 29, 68, 0.55);
  --px-surface-strong: rgba(28, 33, 78, 0.85);
  --px-surface-input: rgba(13, 17, 44, 0.65);
  --px-glass-border: rgba(255, 255, 255, 0.10);
  --px-border: rgba(237, 239, 255, 0.14);
  --px-text: #EDEFFF;
  --px-text-muted: #B6BCE4;
  --px-text-faint: #8B92C4;
  --px-primary: #8A96FF;
  --px-primary-hover: #A3ADFF;
  --px-primary-soft: rgba(138, 150, 255, 0.14);
  --px-on-primary: #0A0D24;
  --px-success: #5BD68B;
  --px-success-soft: rgba(91, 214, 139, 0.14);
  --px-warning: #F0B35C;
  --px-warning-soft: rgba(240, 179, 92, 0.14);
  --px-danger: #FF7A82;
  --px-danger-soft: rgba(255, 122, 130, 0.14);
  --px-shadow-1: 0 1px 2px rgba(0, 0, 0, 0.4), 0 4px 16px rgba(0, 0, 0, 0.35);
  --px-shadow-2: 0 4px 12px rgba(0, 0, 0, 0.45), 0 16px 40px rgba(0, 0, 30, 0.55);
  --px-pulse-color: rgba(138, 150, 255, 0.40);

  color-scheme: dark;
}

/* ── Base ───────────────────────────────────────────────────────────── */
.px-app {
  margin: 0;
  min-height: 100dvh;
  background: var(--px-bg);
  color: var(--px-text);
  font-family: var(--px-font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Ambient gradient blobs behind the glass */
.px-app::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(42rem 42rem at 12% -8%, var(--px-bg-accent-1), transparent 60%),
    radial-gradient(38rem 38rem at 105% 22%, var(--px-bg-accent-2), transparent 62%),
    radial-gradient(46rem 46rem at 50% 118%, var(--px-bg-accent-1), transparent 65%);
  pointer-events: none;
}

.px-app h1, .px-app h2, .px-app h3, .px-app h4 {
  font-family: var(--px-font-display);
  line-height: 1.2;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}
.px-app h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 800; }
.px-app h2 { font-size: clamp(1.35rem, 3vw, 1.75rem); font-weight: 700; }
.px-app h3 { font-size: 1.15rem; font-weight: 700; }
.px-app p  { margin: 0 0 1em; }
.px-app a  { color: var(--px-primary); }

.px-container {
  width: min(1200px, 100% - 2.5rem);
  margin-inline: auto;
}
.px-muted { color: var(--px-text-muted); }
.px-faint { color: var(--px-text-faint); font-size: 0.875rem; }

/* Skip link */
.px-skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--px-primary); color: var(--px-on-primary);
  padding: 0.75rem 1.25rem; border-radius: 0 0 var(--px-radius-sm) 0;
  z-index: 200; font-weight: 600; text-decoration: none;
}
.px-skip:focus { left: 0; }

/* ── Glass surfaces ─────────────────────────────────────────────────── */
.px-glass {
  background: var(--px-surface);
  -webkit-backdrop-filter: blur(var(--px-blur)) saturate(1.5);
  backdrop-filter: blur(var(--px-blur)) saturate(1.5);
  border: 1px solid var(--px-glass-border);
  border-radius: var(--px-radius-lg);
  box-shadow: var(--px-shadow-1);
}
.px-glass--strong { background: var(--px-surface-strong); }
.px-glass--hover {
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.px-glass--hover:hover,
.px-glass--hover:focus-within {
  transform: translateY(-3px);
  box-shadow: var(--px-shadow-2);
  border-color: var(--px-primary-soft);
}

.px-card { padding: 1.5rem; }
@media (min-width: 768px) { .px-card { padding: 2rem; } }

/* ── Navigation ─────────────────────────────────────────────────────── */
.px-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--px-nav-h);
  background: var(--px-surface-strong);
  -webkit-backdrop-filter: blur(var(--px-blur)) saturate(1.5);
  backdrop-filter: blur(var(--px-blur)) saturate(1.5);
  border-bottom: 1px solid var(--px-glass-border);
  box-shadow: var(--px-shadow-1);
}
.px-nav__inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.px-nav__brand { display: flex; align-items: center; min-width: 0; }
.px-nav__brand img { height: 34px; width: auto; display: block; }
@media (min-width: 768px) { .px-nav__brand img { height: 40px; } }

.px-nav__links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: auto;
}
.px-nav__link {
  padding: 0.55rem 0.9rem;
  border-radius: var(--px-radius-sm);
  color: var(--px-text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: background-color 0.2s, color 0.2s;
}
.px-nav__link:hover { background: var(--px-primary-soft); color: var(--px-primary); }
.px-nav__link[aria-current="page"],
.px-nav__link.is-active {
  background: var(--px-primary-soft);
  color: var(--px-primary);
  font-weight: 600;
}

/* Mobile nav */
.px-nav__toggle {
  display: none;
  margin-left: auto;
  width: 44px; height: 44px;
  border: 1px solid var(--px-border);
  border-radius: var(--px-radius-sm);
  background: transparent;
  color: var(--px-text);
  cursor: pointer;
  align-items: center; justify-content: center;
}
@media (max-width: 899px) {
  .px-nav__toggle { display: inline-flex; }
  .px-nav__links {
    position: fixed;
    top: var(--px-nav-h); left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem;
    gap: 0.25rem;
    background: var(--px-surface-strong);
    -webkit-backdrop-filter: blur(var(--px-blur)) saturate(1.5);
    backdrop-filter: blur(var(--px-blur)) saturate(1.5);
    border-bottom: 1px solid var(--px-glass-border);
    box-shadow: var(--px-shadow-2);
    display: none;
  }
  .px-nav__links.is-open { display: flex; }
  .px-nav__link { padding: 0.85rem 1rem; }
}

/* Theme toggle */
.px-theme-toggle {
  width: 44px; height: 44px;
  border: 1px solid var(--px-border);
  border-radius: 50%;
  background: var(--px-surface);
  color: var(--px-text-muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s, border-color 0.2s, transform 0.2s;
  flex: none;
}
.px-theme-toggle:hover { color: var(--px-primary); border-color: var(--px-primary); transform: rotate(15deg); }
.px-theme-toggle svg { width: 20px; height: 20px; }
.px-theme-toggle .px-icon-moon { display: none; }
:root[data-theme="dark"] .px-theme-toggle .px-icon-moon { display: block; }
:root[data-theme="dark"] .px-theme-toggle .px-icon-sun { display: none; }

/* Theme-paired imagery: show one of two <img>s */
.px-only-dark { display: none !important; }
:root[data-theme="dark"] .px-only-dark { display: block !important; }
:root[data-theme="dark"] .px-only-light { display: none !important; }

/* ── Buttons ────────────────────────────────────────────────────────── */
.px-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.7rem 1.5rem;
  border-radius: var(--px-radius-md);
  border: 1px solid transparent;
  font-family: var(--px-font-body);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  touch-action: manipulation;
  transition: background-color 0.2s, color 0.2s, transform 0.15s, box-shadow 0.2s;
}
.px-btn:active { transform: scale(0.97); }
.px-btn:disabled { opacity: 0.45; cursor: not-allowed; pointer-events: none; }

.px-btn--primary {
  background: var(--px-primary);
  color: var(--px-on-primary);
}
.px-btn--primary:hover { background: var(--px-primary-hover); box-shadow: var(--px-shadow-2); }

.px-btn--ghost {
  background: transparent;
  color: var(--px-primary);
  border-color: var(--px-primary);
}
.px-btn--ghost:hover { background: var(--px-primary-soft); }

.px-btn--soft {
  background: var(--px-primary-soft);
  color: var(--px-primary);
}
.px-btn--soft:hover { background: var(--px-primary); color: var(--px-on-primary); }

.px-btn--danger { background: var(--px-danger); color: #fff; }
.px-btn--sm { min-height: 40px; padding: 0.4rem 1rem; font-size: 0.9rem; }
.px-btn--block { width: 100%; }

/* Pulsing ring on key interactive elements */
@keyframes px-pulse {
  0%   { box-shadow: 0 0 0 0 var(--px-pulse-color); }
  70%  { box-shadow: 0 0 0 14px rgba(0, 0, 0, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 0, 0, 0); }
}
.px-pulse { animation: px-pulse 2.4s cubic-bezier(0.4, 0, 0.6, 1) infinite; }
.px-pulse:hover, .px-pulse:focus-visible { animation-play-state: paused; }

/* Focus visibility */
.px-app :focus-visible,
.px-nav :focus-visible {
  outline: 3px solid var(--px-primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ── Forms ──────────────────────────────────────────────────────────── */
.px-field { margin-bottom: 1.1rem; }
.px-field label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
  color: var(--px-text);
}
.px-field .px-help { font-size: 0.8rem; color: var(--px-text-faint); margin-top: 0.3rem; }
.px-field .px-error { font-size: 0.85rem; color: var(--px-danger); margin-top: 0.3rem; font-weight: 500; }

.px-input, .px-select, .px-textarea {
  width: 100%;
  min-height: 48px;
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--px-border);
  border-radius: var(--px-radius-sm);
  background: var(--px-surface-input);
  color: var(--px-text);
  font-family: var(--px-font-body);
  font-size: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-sizing: border-box;
}
.px-input:focus, .px-select:focus, .px-textarea:focus {
  outline: none;
  border-color: var(--px-primary);
  box-shadow: 0 0 0 3px var(--px-primary-soft);
}
.px-input[aria-invalid="true"] { border-color: var(--px-danger); }

/* ── Badges / status pills ──────────────────────────────────────────── */
.px-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  line-height: 1.4;
}
.px-badge--primary { background: var(--px-primary-soft); color: var(--px-primary); }
.px-badge--success { background: var(--px-success-soft); color: var(--px-success); }
.px-badge--warning { background: var(--px-warning-soft); color: var(--px-warning); }
.px-badge--danger  { background: var(--px-danger-soft);  color: var(--px-danger); }
.px-badge--neutral { background: var(--px-primary-soft); color: var(--px-text-muted); }

/* ── Alerts ─────────────────────────────────────────────────────────── */
.px-alert {
  padding: 0.85rem 1.1rem;
  border-radius: var(--px-radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  border: 1px solid transparent;
  margin-bottom: 1rem;
}
.px-alert:empty { display: none; }
.px-alert--error   { background: var(--px-danger-soft);  color: var(--px-danger);  border-color: var(--px-danger); }
.px-alert--success { background: var(--px-success-soft); color: var(--px-success); border-color: var(--px-success); }
.px-alert--info    { background: var(--px-primary-soft); color: var(--px-primary); border-color: var(--px-primary); }

/* ── Tables ─────────────────────────────────────────────────────────── */
.px-table-wrap { overflow-x: auto; border-radius: var(--px-radius-md); }
.px-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  min-width: 560px;
}
.px-table th {
  text-align: left;
  font-family: var(--px-font-display);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--px-text-faint);
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--px-border);
}
.px-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--px-border);
  font-variant-numeric: tabular-nums;
}
.px-table tbody tr:hover { background: var(--px-primary-soft); }

/* ── Unit progress icons ────────────────────────────────────────────
   SVG ring + state icon. States: locked / active (pulses) / done.
   Markup:
   <div class="px-unit px-unit--done"> <svg class="px-unit__ring" viewBox="0 0 44 44">
     <circle class="px-unit__track" cx="22" cy="22" r="19"/>
     <circle class="px-unit__bar" cx="22" cy="22" r="19" style="--p:75"/>
   </svg> <span class="px-unit__glyph">…SVG icon…</span> </div>          */
.px-unit {
  position: relative;
  width: 52px; height: 52px;
  flex: none;
}
.px-unit__ring { width: 100%; height: 100%; transform: rotate(-90deg); }
.px-unit__track, .px-unit__bar { fill: none; stroke-width: 4; }
.px-unit__track { stroke: var(--px-border); }
.px-unit__bar {
  stroke: var(--px-primary);
  stroke-linecap: round;
  stroke-dasharray: 119.4; /* 2πr, r=19 */
  stroke-dashoffset: calc(119.4 - (119.4 * var(--p, 0) / 100));
  transition: stroke-dashoffset 0.6s ease;
}
.px-unit__glyph {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--px-primary);
}
.px-unit__glyph svg { width: 22px; height: 22px; }

.px-unit--locked .px-unit__bar { stroke: transparent; }
.px-unit--locked .px-unit__glyph { color: var(--px-text-faint); }

.px-unit--active { border-radius: 50%; }
.px-unit--active.px-pulse { animation: px-pulse 2.4s cubic-bezier(0.4, 0, 0.6, 1) infinite; }

.px-unit--done .px-unit__bar { stroke: var(--px-success); }
.px-unit--done .px-unit__glyph { color: var(--px-success); }

/* ── Virtual ID card ────────────────────────────────────────────────
   Deliberately theme-invariant (a card is a physical object): stays
   white with brand-blue band in both light and dark modes.            */
.px-idcard {
  width: min(420px, 100%);
  aspect-ratio: 1.586;
  border-radius: 18px;
  overflow: hidden;
  background: #FFFFFF;
  color: #101433;
  box-shadow: var(--px-shadow-2);
  border: 1px solid rgba(16, 20, 51, 0.12);
  display: flex;
  flex-direction: column;
  font-family: var(--px-font-body);
  position: relative;
}
.px-idcard__band {
  background: linear-gradient(100deg, #0000FE 0%, #2B2BFF 70%, #4A56FF 100%);
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 1rem;
  flex: none;
}
.px-idcard__band img { height: 38px; width: auto; }
.px-idcard__band-title {
  font-family: var(--px-font-display);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.10em;
  line-height: 1.15;
}
.px-idcard__band-sub {
  display: block;
  font-family: var(--px-font-body);
  font-weight: 500;
  font-size: 0.58rem;
  letter-spacing: 0.22em;
  opacity: 0.85;
}
.px-idcard__body {
  flex: 1;
  display: flex;
  gap: 0.9rem;
  padding: 0.8rem 1rem;
  min-height: 0;
  position: relative;
  z-index: 1;
}
/* Chevron watermark echoing the Praxis mark */
.px-idcard__body::after {
  content: '';
  position: absolute;
  right: -18px; bottom: -26px;
  width: 150px; height: 150px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Cg fill='none' stroke='%230000FE' stroke-width='7' stroke-linecap='round' stroke-linejoin='round' opacity='0.07'%3E%3Cpath d='M14 18 L46 50 L14 82'/%3E%3Cpath d='M40 18 L72 50 L40 82'/%3E%3Cpath d='M66 18 L98 50 L66 82'/%3E%3C/g%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  pointer-events: none;
  z-index: 0;
}
.px-idcard__photo {
  width: 92px;
  border-radius: 10px;
  overflow: hidden;
  flex: none;
  align-self: center;
  aspect-ratio: 3 / 4;
  background: #E8EBFA;
  border: 2px solid #0000FE;
  display: flex; align-items: center; justify-content: center;
}
.px-idcard__photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.px-idcard__photo svg { width: 40px; height: 40px; color: #9BA3CF; }
.px-idcard__details {
  flex: 1; min-width: 0;
  display: flex; flex-direction: column; justify-content: center;
  position: relative; z-index: 1;
}
.px-idcard__name {
  font-family: var(--px-font-display);
  font-weight: 800;
  font-size: 1.05rem;
  line-height: 1.2;
  color: #101433;
  margin: 0 0 0.15rem;
  overflow-wrap: anywhere;
}
.px-idcard__role {
  display: inline-block;
  align-self: flex-start;
  background: rgba(0, 0, 254, 0.09);
  color: #0000FE;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
  margin-bottom: 0.4rem;
}
.px-idcard__row {
  font-size: 0.72rem;
  color: #464D75;
  line-height: 1.5;
  display: flex; gap: 0.4rem;
}
.px-idcard__row dt { font-weight: 700; color: #101433; margin: 0; }
.px-idcard__row dd { margin: 0; font-variant-numeric: tabular-nums; }
.px-idcard__qr {
  width: 74px; height: 74px;
  flex: none;
  align-self: center;
  background: #fff;
  border: 1px solid rgba(16, 20, 51, 0.15);
  border-radius: 8px;
  padding: 4px;
  position: relative; z-index: 1;
}
.px-idcard__qr img, .px-idcard__qr canvas, .px-idcard__qr svg { width: 100%; height: 100%; display: block; }
.px-idcard__foot {
  flex: none;
  border-top: 2px solid #0000FE;
  padding: 0.32rem 1rem;
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  color: #464D75;
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  background: #F7F8FE;
  position: relative; z-index: 1;
}

/* ── Footer (Academy anchors) — 4-column grid mirroring /academy ────── */
.px-footer {
  margin-top: 4rem;
  border-top: 1px solid var(--px-glass-border);
  background: var(--px-surface);
  -webkit-backdrop-filter: blur(var(--px-blur));
  backdrop-filter: blur(var(--px-blur));
  padding: 2.75rem 0 1.5rem;
}
.px-footer__cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 640px)  { .px-footer__cols { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .px-footer__cols { grid-template-columns: 1.3fr 1fr 1.2fr 1.3fr; gap: 2.5rem; } }

.px-footer__brand img { height: 48px; width: auto; display: block; margin-bottom: 0.85rem; }
.px-footer__tag { font-size: 0.9rem; color: var(--px-text-muted); line-height: 1.6; margin: 0; }

.px-footer h4 {
  font-family: var(--px-font-display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--px-text);
  margin: 0 0 0.9rem;
}
.px-footer ul { list-style: none; margin: 0; padding: 0; }
.px-footer li {
  font-size: 0.875rem;
  color: var(--px-text-muted);
  line-height: 1.6;
  margin-bottom: 0.55rem;
}
.px-footer a { color: var(--px-text-muted); text-decoration: none; transition: color 0.2s; }
.px-footer a:hover { color: var(--px-primary); }
.px-footer__legal { font-size: 0.8rem; color: var(--px-text-faint); line-height: 1.6; margin: 0 0 0.75rem; }

.px-footer__bottom {
  margin-top: 2.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--px-border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 2rem;
  font-size: 0.8rem;
  color: var(--px-text-faint);
}
.px-footer__bottom a { color: var(--px-text-faint); }

/* ── Layout helpers ─────────────────────────────────────────────────── */
.px-grid { display: grid; gap: 1.25rem; }
@media (min-width: 700px)  { .px-grid--2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .px-grid--3 { grid-template-columns: repeat(3, 1fr); }
                             .px-grid--4 { grid-template-columns: repeat(4, 1fr); } }
.px-stack { display: flex; flex-direction: column; gap: 1rem; }
.px-row { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.px-spread { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.px-main { padding: 2rem 0 3rem; }

/* Page header block */
.px-pagehead { margin: 0 0 1.75rem; }
.px-pagehead h1 { margin-bottom: 0.25rem; }
.px-pagehead .px-eyebrow {
  font-family: var(--px-font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--px-primary);
  display: block;
  margin-bottom: 0.4rem;
}

/* Stat tiles */
.px-stat { padding: 1.25rem 1.5rem; }
.px-stat__value {
  font-family: var(--px-font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--px-primary);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.px-stat__label { font-size: 0.85rem; color: var(--px-text-muted); font-weight: 500; }

/* Skeleton loading */
@keyframes px-shimmer { 0% { background-position: -400px 0; } 100% { background-position: 400px 0; } }
.px-skeleton {
  border-radius: var(--px-radius-sm);
  background: linear-gradient(90deg, var(--px-primary-soft) 25%, var(--px-surface-strong) 50%, var(--px-primary-soft) 75%);
  background-size: 800px 100%;
  animation: px-shimmer 1.4s linear infinite;
  min-height: 1em;
}

/* Skeleton primitives — driven by the theme.js painter (auto-detects loaders).
   Shimmer identical to .px-skeleton; all colours theme-token driven. */
.px-sk {
  border-radius: var(--px-radius-sm);
  background: linear-gradient(90deg, var(--px-primary-soft) 25%, var(--px-surface-strong) 50%, var(--px-primary-soft) 75%);
  background-size: 800px 100%;
  animation: px-shimmer 1.4s linear infinite;
}
.px-sk--bar    { height: 0.8rem; }
.px-sk--title  { height: 1.2rem; width: 58%; margin-bottom: 1rem; }
.px-sk--circle { width: 38px; height: 38px; border-radius: 50%; flex: none; }
.px-sk--pill   { height: 1.1rem; width: 66px; border-radius: 999px; flex: none; }
.px-sk-card {
  background: var(--px-surface);
  border: 1px solid var(--px-glass-border);
  border-radius: var(--px-radius-md);
  box-shadow: var(--px-shadow-1);
  padding: 1.1rem;
  margin-bottom: 1rem;
}
.px-sk-card:last-child { margin-bottom: 0; }
.px-sk-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--px-border);
  border-radius: var(--px-radius-md);
  background: var(--px-surface-strong);
  margin-bottom: 0.5rem;
}
.px-sk-row:last-child { margin-bottom: 0; }
.px-sk-row .px-sk--bar { flex: 1; }
.px-sk-td { display: flex; gap: 1.25rem; }
.px-sk-td .px-sk--bar { flex: 1; }
/* Visually-hidden — screen-reader-only loading announcement */
.px-sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ── Reduced motion ─────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .px-pulse, .px-unit--active.px-pulse { animation: none; }
  .px-skeleton, .px-sk { animation: none; }
  .px-app *, .px-app *::before, .px-app *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}