/*
 * portal.css — Customer portal (app.skerply.com) app-shell.
 *
 * Loads after brand/tokens.css and css/site.css. Uses brand tokens
 * exclusively — no hard-coded colours, fonts, or spacing values.
 * Class names are prefixed `portal-` to avoid bleeding into marketing
 * or admin chrome.
 */

.portal-shell {
  min-height: 100dvh;
  display: grid;
  grid-template-columns: 16rem 1fr;
  grid-template-rows: auto 1fr;
  grid-template-areas:
    "rail topbar"
    "rail content";
  background: var(--color-bg-elevated);
}

@media (max-width: 920px) {
  .portal-shell {
    grid-template-columns: 1fr;
    grid-template-areas:
      "topbar"
      "rail"
      "content";
  }
}

/* --- Left rail --- */
.portal-rail {
  grid-area: rail;
  background: var(--color-fg);
  color: #FFFFFF;
  padding: var(--space-5) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  border-right: 1px solid var(--color-fg);
  min-height: 100dvh;
}

.portal-rail-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: #FFFFFF;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-xl);
  letter-spacing: var(--tracking-tight);
}

.portal-rail-brand svg {
  color: var(--color-highlight);
}

.portal-rail-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  list-style: none;
  padding: 0;
  margin: 0;
}

.portal-rail-nav a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-3);
  color: var(--color-fg-subtle);
  text-decoration: none;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: background var(--duration-120) var(--ease-standard),
              color var(--duration-120) var(--ease-standard);
  position: relative;
}

.portal-rail-nav a:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #FFFFFF;
}

.portal-rail-nav a[aria-current="page"] {
  background: rgba(245, 205, 27, 0.10);
  color: var(--color-highlight);
}

.portal-rail-nav a[aria-current="page"]::before {
  content: "";
  position: absolute;
  left: 0;
  top: 25%;
  bottom: 25%;
  width: 3px;
  background: var(--color-highlight);
  border-radius: var(--radius-full);
}

.portal-rail-section {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-fg-subtle);
  padding: 0 var(--space-3);
  margin: var(--space-3) 0 var(--space-2);
}

.portal-rail-footer {
  margin-top: auto;
  font-size: var(--text-xs);
  color: var(--color-fg-subtle);
  padding: var(--space-3);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* --- Top bar --- */
.portal-topbar {
  grid-area: topbar;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-3) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.portal-topbar-context {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-fg-muted);
  font-size: var(--text-sm);
}

.portal-topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.portal-signin-cta {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  background: var(--color-fg);
  color: #FFFFFF;
  text-decoration: none;
  border: 1px solid var(--color-fg);
  transition: transform var(--duration-120) var(--ease-spring),
              box-shadow var(--duration-220) var(--ease-standard);
}
.portal-signin-cta:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-medium);
}

.portal-signin-cta--ghost {
  background: transparent;
  color: var(--color-fg);
}

/* --- Content area --- */
.portal-content {
  grid-area: content;
  padding: var(--space-7) var(--space-7);
  max-width: 80rem;
  width: 100%;
  margin: 0 auto;
  background: var(--color-bg);
  min-height: calc(100dvh - 4rem);
  border-top-left-radius: var(--radius-lg);
}

.portal-content h1 {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  letter-spacing: var(--tracking-tight);
  color: var(--color-fg);
  margin: 0 0 var(--space-5);
  line-height: var(--leading-tight);
}

.portal-content h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  margin: var(--space-7) 0 var(--space-4);
  color: var(--color-fg);
}

/* --- Empty-state hero (signed-out portal landing) --- */
.portal-hero {
  display: grid;
  place-items: center;
  text-align: center;
  padding: var(--space-10) var(--space-5);
  gap: var(--space-5);
  min-height: 65dvh;
}

.portal-hero-mark {
  color: var(--color-highlight);
  width: 96px;
  height: 96px;
  filter: drop-shadow(0 4px 16px rgba(245, 205, 27, 0.30));
  animation: portal-float var(--duration-600) var(--ease-spring) both;
}

@keyframes portal-float {
  from { transform: translateY(12px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

.portal-hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-5xl);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-fg);
  margin: 0;
  max-width: 28ch;
}

.portal-hero p {
  font-size: var(--text-lg);
  color: var(--color-fg-muted);
  max-width: 48ch;
  margin: 0;
}

.portal-hero-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

/* --- Cards (subscription list, etc.) --- */
.portal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(20rem, 1fr));
  gap: var(--space-5);
}

.portal-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition: transform var(--duration-220) var(--ease-spring),
              box-shadow var(--duration-220) var(--ease-standard),
              border-color var(--duration-120) var(--ease-standard);
}

.portal-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
  border-color: var(--color-border-strong);
}

.portal-card-eyebrow {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-fg-muted);
}

.portal-card-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-fg);
  margin: 0;
}

.portal-card-meta {
  font-size: var(--text-sm);
  color: var(--color-fg-muted);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.portal-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  background: var(--color-accent-soft);
  color: var(--color-fg);
  font-size: var(--text-xs);
  font-weight: 600;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.portal-pill--active   { background: rgba(31, 122, 77, 0.14); color: var(--color-success); }
.portal-pill--warning  { background: rgba(180, 83, 9, 0.12); color: var(--color-warning); }
.portal-pill--danger   { background: rgba(185, 28, 28, 0.10); color: var(--color-danger); }
.portal-pill--highlight{ background: rgba(245, 205, 27, 0.20); color: #6B5A0A; }

/* --- Definition tables for detail pages --- */
.portal-deflist {
  display: grid;
  grid-template-columns: 12rem 1fr;
  gap: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
}
.portal-deflist dt {
  color: var(--color-fg-muted);
  font-weight: 500;
}
.portal-deflist dd {
  margin: 0;
  color: var(--color-fg);
}

.portal-meta-mono { font-family: var(--font-mono); font-size: var(--text-sm); }

/* --- Empty / placeholder states --- */
.portal-empty {
  padding: var(--space-7);
  text-align: center;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-fg-muted);
  background: var(--color-bg-elevated);
}

/* --- Reduced motion --- */
@media (prefers-reduced-motion: reduce) {
  .portal-rail-nav a,
  .portal-card,
  .portal-signin-cta,
  .portal-hero-mark { transition: none; animation: none; }
}

/* ── Tier C additions ─────────────────────────────────────────────────────── */

/* Card grid using a <ul> reset (subscription list, recipient list, etc.) */
.portal-card-grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(20rem, 1fr));
  gap: var(--space-5);
}
.portal-card-grid > li { display: contents; }
.portal-card-grid > li > .portal-card { text-decoration: none; }

/* Make the card heading + dl inherit polished defaults */
.portal-card h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  line-height: var(--leading-snug);
  margin: 0;
  color: var(--color-fg);
}

/* Section header on portal pages (title + lede) */
.portal-page-header {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}
.portal-page-header h1 {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  margin: 0;
  color: var(--color-fg);
}
.portal-page-header p {
  color: var(--color-fg-muted);
  font-size: var(--text-lg);
  margin: 0;
  max-width: 56ch;
}

/* Logical section block within a portal page */
.portal-section {
  padding: var(--space-6) 0;
  border-top: 1px solid var(--color-border);
  display: grid;
  gap: var(--space-3);
}
.portal-section:first-of-type { border-top: none; padding-top: 0; }
.portal-section h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  margin: 0 0 var(--space-2) 0;
  color: var(--color-fg);
}

/* Fine-print under a section (mono codes, audit notes, etc.) */
.portal-fineprint {
  font-size: var(--text-sm);
  color: var(--color-fg-muted);
}
.portal-fineprint code {
  font-family: var(--font-mono);
  background: var(--color-bg-elevated);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

/* Big mono licence display */
.portal-licence {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  letter-spacing: 0.04em;
  color: var(--color-fg);
}

/* Pill variants used by Tier C pages */
.portal-pill--ok       { background: rgba(31, 122, 77, 0.14); color: var(--color-success); }
.portal-pill--disabled {
  background: var(--color-bg-elevated);
  color: var(--color-fg-muted);
  border: 1px solid var(--color-border);
}

/* Override .portal-deflist to render dl with inline pairs in two columns
   while still supporting <ul role="list"> recipient layouts that wrap each
   dt/dd in a <li>. */
.portal-deflist {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: var(--text-sm);
}
.portal-deflist > div,
.portal-deflist > li {
  display: grid;
  grid-template-columns: 11rem 1fr;
  gap: var(--space-5);
  align-items: baseline;
  padding: var(--space-2) 0;
  border-bottom: 1px dashed var(--color-border);
}
.portal-deflist > div:last-child,
.portal-deflist > li:last-child { border-bottom: none; }
.portal-deflist dt {
  color: var(--color-fg-muted);
  font-weight: 500;
  margin: 0;
}
.portal-deflist dd { margin: 0; color: var(--color-fg); }
.portal-deflist code {
  font-family: var(--font-mono);
  background: var(--color-bg-elevated);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

/* ═══════════════════════════════════════════════════════════════════════════
 * PORTAL UX POLISH — 10-iteration pass
 *
 *  1  Dark-mode token fixes   — rail + button contrast
 *  2  Unified button system   — portal-btn with primary / ghost / danger
 *  3  Skeleton loading        — shimmer ghost cards + inline skeletons
 *  4  Page entrance           — staggered fade-up on portal-content children
 *  5  Card micro-interactions — depth lift, radial glow, active press
 *  6  Nav rail polish         — active indicator scale-in, hover ripple
 *  7  Theme toggle            — sun / moon icon swap + ring styling
 *  8  Focus rings + a11y      — consistent ring, skip-link reveal
 *  9  Empty states            — icon + title + body layout
 * 10  Typography rhythm       — section h2 accent bar, code style, hero stagger
 * ═══════════════════════════════════════════════════════════════════════════ */

/* ── Iter 1: Dark-mode token fixes ───────────────────────────────────────── */

/* portal-rail uses background: var(--color-fg). In dark mode --color-fg
   resolves to #FFFFFF (white) — swap to a deep navy so the light rail text
   remains legible. */
[data-theme="dark"] .portal-rail {
  background: #0D2438;
  border-right-color: var(--color-border);
}

/* portal-signin-cta primary: white bg + white text in dark mode → invisible.
   Use the brand highlight (yellow) as the primary action colour instead. */
[data-theme="dark"] .portal-signin-cta {
  background: var(--color-highlight);
  color: var(--color-highlight-fg);
  border-color: var(--color-highlight);
}
[data-theme="dark"] .portal-signin-cta:hover {
  filter: brightness(1.08);
}
[data-theme="dark"] .portal-signin-cta--ghost {
  background: transparent;
  color: var(--color-fg);
  border-color: var(--color-border-strong);
}
[data-theme="dark"] .portal-signin-cta--ghost:hover {
  background: rgba(255, 255, 255, 0.07);
}

/* Topbar: slightly elevated surface in dark mode for visual separation */
[data-theme="dark"] .portal-topbar {
  background: var(--color-bg-elevated);
  border-bottom-color: var(--color-border);
}

/* Smooth theme transition on key structural elements */
.portal-rail,
.portal-topbar,
.portal-content,
.portal-card,
.portal-shell {
  transition:
    background-color var(--duration-220) var(--ease-standard),
    border-color     var(--duration-120) var(--ease-standard),
    color            var(--duration-120) var(--ease-standard);
}

/* ── Iter 2: Unified button system ───────────────────────────────────────── */

/* portal-btn is the new canonical button; portal-signin-cta is kept for
   backward compatibility. Both share the same hover/focus contract. */
.portal-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background-color var(--duration-120) var(--ease-standard),
    border-color     var(--duration-120) var(--ease-standard),
    color            var(--duration-120) var(--ease-standard),
    box-shadow       var(--duration-220) var(--ease-standard),
    transform        var(--duration-120) var(--ease-spring);
}

@media (prefers-reduced-motion: no-preference) {
  .portal-btn:not(:disabled):hover { transform: translateY(-1px); }
  .portal-btn:not(:disabled):active { transform: scale(0.97); }
}

.portal-btn:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

/* Primary */
.portal-btn--primary {
  background: var(--color-fg);
  color: #FFFFFF;
  border-color: var(--color-fg);
}
.portal-btn--primary:hover {
  box-shadow: var(--shadow-medium);
  filter: brightness(1.06);
}
[data-theme="dark"] .portal-btn--primary {
  background: var(--color-highlight);
  color: var(--color-highlight-fg);
  border-color: var(--color-highlight);
}
[data-theme="dark"] .portal-btn--primary:hover {
  filter: brightness(1.08);
}

/* Ghost */
.portal-btn--ghost {
  background: transparent;
  color: var(--color-fg);
  border-color: var(--color-border-strong);
}
.portal-btn--ghost:hover {
  background: var(--color-bg-elevated);
  border-color: var(--color-fg);
}
[data-theme="dark"] .portal-btn--ghost:hover {
  background: rgba(255, 255, 255, 0.07);
}

/* Danger */
.portal-btn--danger {
  background: transparent;
  color: var(--color-danger);
  border-color: var(--color-danger);
}
.portal-btn--danger:hover {
  background: rgba(185, 28, 28, 0.08);
}

.portal-btn:disabled,
.portal-btn[aria-disabled="true"] {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
  filter: none !important;
}

/* Ensure <button> elements reset UA styles when using portal-signin-cta */
button.portal-signin-cta,
button.portal-btn {
  -webkit-appearance: none;
  appearance: none;
  font-family: inherit;
}

/* ── Iter 3: Skeleton / ghost loading states ─────────────────────────────── */

@keyframes portal-shimmer {
  0%   { background-position: -200% center; }
  100% { background-position:  200% center; }
}

.portal-skeleton {
  border-radius: var(--radius-md);
  background: linear-gradient(
    90deg,
    var(--color-bg-elevated) 25%,
    var(--color-bg-inset)    50%,
    var(--color-bg-elevated) 75%
  );
  background-size: 200% 100%;
}

@media (prefers-reduced-motion: no-preference) {
  .portal-skeleton {
    animation: portal-shimmer 1.6s var(--ease-standard) infinite;
  }
}

.portal-skeleton-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  min-height: 11rem;
}

.portal-skeleton-pill   { height: 22px; width: 72px; border-radius: var(--radius-full); }
.portal-skeleton-heading{ height: 1.5rem; width: 60%; border-radius: var(--radius-sm); }

.portal-skeleton-line          { height: 0.875rem; border-radius: var(--radius-sm); }
.portal-skeleton-line--short   { width: 38%; }
.portal-skeleton-line--medium  { width: 62%; }
.portal-skeleton-line--long    { width: 88%; }

/* Stagger skeleton items so they feel organic */
@media (prefers-reduced-motion: no-preference) {
  .portal-skeleton-card:nth-child(1) .portal-skeleton { animation-delay: 0ms; }
  .portal-skeleton-card:nth-child(2) .portal-skeleton { animation-delay: 160ms; }
  .portal-skeleton-card:nth-child(3) .portal-skeleton { animation-delay: 320ms; }
}

/* ── Iter 4: Page entrance animation ─────────────────────────────────────── */

@keyframes portal-enter {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: no-preference) {
  .portal-content > * {
    animation: portal-enter var(--duration-360) var(--ease-entrance) both;
  }
  .portal-content > *:nth-child(1)      { animation-delay:   0ms; }
  .portal-content > *:nth-child(2)      { animation-delay:  60ms; }
  .portal-content > *:nth-child(3)      { animation-delay: 120ms; }
  .portal-content > *:nth-child(4)      { animation-delay: 180ms; }
  .portal-content > *:nth-child(n + 5)  { animation-delay: 240ms; }
}

/* ── Iter 5: Card micro-interactions ─────────────────────────────────────── */

.portal-card { position: relative; overflow: hidden; }

/* Radial glow that follows cursor focus on hover (pure CSS approximation) */
@media (prefers-reduced-motion: no-preference) {
  .portal-card::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: radial-gradient(
      circle at 50% 40%,
      rgba(245, 205, 27, 0.07) 0%,
      transparent 60%
    );
    opacity: 0;
    transition: opacity var(--duration-220) var(--ease-standard);
    pointer-events: none;
  }
  .portal-card:hover::after  { opacity: 1; }

  .portal-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-high);
    border-color: var(--color-border-strong);
  }
  .portal-card:active {
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
    transition-duration: var(--duration-60);
  }

  /* Card grid entrance stagger — animate the card (li has display:contents) */
  .portal-card-grid > li:nth-child(1) > .portal-card { animation: portal-enter var(--duration-360) var(--ease-entrance)   0ms both; }
  .portal-card-grid > li:nth-child(2) > .portal-card { animation: portal-enter var(--duration-360) var(--ease-entrance)  80ms both; }
  .portal-card-grid > li:nth-child(3) > .portal-card { animation: portal-enter var(--duration-360) var(--ease-entrance) 160ms both; }
  .portal-card-grid > li:nth-child(4) > .portal-card { animation: portal-enter var(--duration-360) var(--ease-entrance) 240ms both; }
  .portal-card-grid > li:nth-child(n + 5) > .portal-card { animation: portal-enter var(--duration-360) var(--ease-entrance) 300ms both; }
}

/* ── Iter 6: Nav rail polish ─────────────────────────────────────────────── */

@media (prefers-reduced-motion: no-preference) {
  @keyframes rail-indicator-in {
    from { transform: scaleY(0); opacity: 0; }
    to   { transform: scaleY(1); opacity: 1; }
  }

  .portal-rail-nav a[aria-current="page"]::before {
    transform-origin: center center;
    animation: rail-indicator-in var(--duration-220) var(--ease-spring) both;
  }

  /* Hover ripple overlay on rail nav items */
  .portal-rail-nav a { overflow: hidden; }
  .portal-rail-nav a::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: rgba(255, 255, 255, 0.04);
    opacity: 0;
    transition: opacity var(--duration-120) var(--ease-standard);
    pointer-events: none;
  }
  .portal-rail-nav a:hover::after { opacity: 1; }
}

.portal-rail-theme { margin-top: var(--space-3); }

/* ── Iter 7: Theme toggle ────────────────────────────────────────────────── */

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  padding: 0;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-fg-subtle);
  cursor: pointer;
  transition:
    background-color var(--duration-120) var(--ease-standard),
    border-color     var(--duration-120) var(--ease-standard),
    color            var(--duration-120) var(--ease-standard);
}
.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.16);
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.28);
}
.theme-toggle:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

/* Show the correct icon for current theme */
.theme-toggle-sun  { display: none; }
.theme-toggle-moon { display: block; }

[data-theme="dark"] .theme-toggle-sun  { display: block; }
[data-theme="dark"] .theme-toggle-moon { display: none; }

@media (prefers-reduced-motion: no-preference) {
  .theme-toggle-sun,
  .theme-toggle-moon {
    transition:
      transform var(--duration-220) var(--ease-spring),
      opacity   var(--duration-120) var(--ease-standard);
  }
}

/* ── Iter 8: Focus rings + a11y ──────────────────────────────────────────── */

/* Remove browser default ring; add consistent brand ring on keyboard nav */
.portal-shell *:focus          { outline: none; }
.portal-shell *:focus-visible  {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Skip link: hidden until focused */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 200;
  padding: var(--space-2) var(--space-4);
  background: var(--color-fg);
  color: #FFFFFF;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  text-decoration: none;
  transition: top var(--duration-120) var(--ease-standard);
}
.skip-link:focus-visible {
  top: 0;
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

/* ── Iter 9: Empty states ────────────────────────────────────────────────── */

.portal-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
}

.portal-empty__icon {
  width: 48px;
  height: 48px;
  color: var(--color-fg-subtle);
  opacity: 0.65;
}

.portal-empty__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-fg);
  margin: 0;
}

.portal-empty__body {
  font-size: var(--text-sm);
  color: var(--color-fg-muted);
  max-width: 38ch;
  margin: 0;
}

/* ── Iter 10: Typography rhythm + final polish ───────────────────────────── */

/* Section h2: accent bar below the heading for visual anchoring */
.portal-section h2 {
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-4) !important;
}

/* Inline code style (visible in deployment + licence sections) */
.portal-content code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  color: var(--color-fg);
  word-break: break-all;
}

/* Portal hero: stagger children once the hero animates in */
@media (prefers-reduced-motion: no-preference) {
  .portal-hero h1      { animation: portal-enter var(--duration-360) var(--ease-entrance) 120ms both; }
  .portal-hero p       { animation: portal-enter var(--duration-360) var(--ease-entrance) 200ms both; }
  .portal-hero-actions { animation: portal-enter var(--duration-360) var(--ease-entrance) 300ms both; }
}

/* Pill entrance */
@media (prefers-reduced-motion: no-preference) {
  .portal-pill {
    animation: portal-enter var(--duration-220) var(--ease-entrance) 80ms both;
  }
}

/* Deflist row: subtle hover highlight on detail pages */
.portal-deflist > div,
.portal-deflist > li {
  transition: background-color var(--duration-120) var(--ease-standard);
  border-radius: var(--radius-sm);
  padding-left: var(--space-2);
  padding-right: var(--space-2);
  margin-left: calc(-1 * var(--space-2));
  margin-right: calc(-1 * var(--space-2));
}
.portal-deflist > div:hover,
.portal-deflist > li:hover {
  background: var(--color-bg-elevated);
}

/* Reduced motion: collapse all portal transitions + animations */
@media (prefers-reduced-motion: reduce) {
  .portal-rail,
  .portal-topbar,
  .portal-content,
  .portal-card,
  .portal-shell,
  .portal-btn,
  .portal-signin-cta,
  .theme-toggle,
  .skip-link,
  .portal-skeleton,
  .portal-deflist > div,
  .portal-deflist > li {
    transition: none !important;
    animation: none !important;
  }
}