/* TeleSenior — global styles for the pre-bundle frame and the a11y opt-ins.
   Brand: Support, Safety, Love, Valor, Hope, Authority, Peace, Care, Vision,
   Trust, Accessibility, Efficiency */

/* ===== BRAND TOKENS =====
   A mirror of src/common/theme/brand.js. This sheet is a plain <link> in
   index.html and paints before the bundle exists, so it cannot import the
   tokens — the custom properties below are the seam. Every colour in this file
   goes through one of them, so a palette change is a one-line edit here rather
   than a search for hexes.
   The `*-rgb` triplets exist only because rgba() cannot take a hex var. */
:root {
  --ts-cream: #fff1cc;          /* colors.cream — the body canvas */
  --ts-ink: #112c3a;            /* colors.ink */
  --ts-ink-rgb: 17, 44, 58;
  --ts-ink-contrast: #000000;   /* colors.contrastInk */
  --ts-ink-contrast-soft: #0a2230; /* colors.contrastInkSoft */
  --ts-burnt: #B63800;          /* colors.burnt — the focus ring */
  --ts-gold: #FFBA00;           /* colors.gold */
  --ts-gold-rgb: 255, 186, 0;
  --ts-white: #ffffff;          /* colors.white */
  --ts-font-body: "Roboto Condensed", system-ui, sans-serif; /* fonts.body */

  /* brand.js focusRing — 3px burnt, 2px offset. */
  --ts-focus-width: 3px;
  --ts-focus-offset: 2px;

  /* Neutral shimmer greys for the skeleton: a placeholder stands in for content
     that has no colour yet, so it carries no brand hue and has no token. Kept
     in step with the MuiSkeleton override in common/theme/components.js. */
  --ts-skeleton-base: #f0f0f0;
  --ts-skeleton-wave: #e0e0e0;

  /* Always-dark ink for text that must stay legible on a gold or printed
     surface regardless of theme (palette.alwaysDark). No brand token. */
  --ts-always-dark: #1a1a1a;
}

html, body {
  height: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  padding: 0;
  /* Body font, matching the MUI theme. Was a Montserrat stack, which index.html
     never loads and the theme never mentions — the pre-bundle frame rendered in
     a different typeface from the app that replaced it. */
  font-family: var(--ts-font-body);
  background-color: var(--ts-cream);
}

.root {
  display: flex;
  flex-direction: column;
  height: 100%;
}

/* ===== ACCESSIBILITY ENHANCEMENTS ===== */

/* Skip link for keyboard navigation */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  padding: 12px 24px;
  background-color: var(--ts-gold);
  color: var(--ts-always-dark);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 0 0 8px 8px;
  /* Navy-tinted, per DESIGN.md §4 The Warm Shadow Rule. Was rgba(0,0,0,0.15). */
  box-shadow: 0 4px 16px rgba(var(--ts-ink-rgb), 0.15);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
  outline: none;
}

/* Selection styling with brand color */
::selection {
  background-color: rgba(var(--ts-gold-rgb), 0.3);
  color: inherit;
}

::-moz-selection {
  background-color: rgba(var(--ts-gold-rgb), 0.3);
  color: inherit;
}

/* Focus outline — Burnt Ember, 3px, per DESIGN.md §5 (brand.js focusRing).
   Was 2px Signal Gold #FFBA00, which measures 1.71:1 on white and 1.52:1 on
   cream: below the 3:1 WCAG 2.1 floor for a focus indicator, i.e. effectively
   invisible on every surface this app uses. Burnt is 5.26:1 on cream.
   Gold is still correct on NAVY surfaces only — see brand.js focusRingOnDark. */
*:focus-visible {
  outline: var(--ts-focus-width) solid var(--ts-burnt);
  outline-offset: var(--ts-focus-offset);
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[role="button"]:focus-visible,
[tabindex]:focus-visible {
  outline: var(--ts-focus-width) solid var(--ts-burnt);
  outline-offset: var(--ts-focus-offset);
}

/* Focus ring animation for enhanced visibility */
@keyframes focusRingPulse {
  0%, 100% {
    box-shadow: 0 0 0 2px rgba(var(--ts-gold-rgb), 0.4);
  }
  50% {
    box-shadow: 0 0 0 4px rgba(var(--ts-gold-rgb), 0.2);
  }
}

/* ===== HIGH CONTRAST MODE SUPPORT =====
   The one place the warm palette is deliberately abandoned for absolutes
   (brand.js colors.contrastInk). Gold, not burnt, is the ring here: the canvas
   is black, and burnt on black is 2.1:1 — see brand.js focusRingOnDark. */
@media (prefers-contrast: high) {
  body {
    background-color: var(--ts-ink-contrast);
    color: var(--ts-white);
  }

  *:focus-visible {
    outline: var(--ts-focus-width) solid var(--ts-gold) !important;
    outline-offset: 3px !important;
  }

  .MuiButton-root {
    border: 2px solid currentColor !important;
  }

  .MuiCard-root,
  .MuiPaper-root {
    border: 2px solid var(--ts-white) !important;
  }

  .MuiListItemButton-root:hover,
  .MuiListItemButton-root.Mui-selected {
    background-color: rgba(var(--ts-gold-rgb), 0.3) !important;
  }

  a {
    text-decoration: underline !important;
  }
}

/* ===== FORCED COLORS (WINDOWS HIGH CONTRAST) =====
   System keywords only — the OS owns the palette here, so no brand token
   may appear in this block. */
@media (forced-colors: active) {
  *:focus-visible {
    outline: var(--ts-focus-width) solid CanvasText !important;
  }

  .MuiButton-root {
    border: 2px solid ButtonText !important;
  }

  .MuiIconButton-root {
    border: 1px solid ButtonText;
  }
}

/* ===== IN-APP DISPLAY PREFERENCES (Settings → Afișare) =====
   Opt-in classes toggled on <html> by common/util/accessibility.js. They take
   effect only once a user turns them on, so the default look is unchanged. */

/* Bold text — heavier weight on body copy and controls for easier reading.
   Headings are already bold and are intentionally left untouched. */
html.a11y-bold body,
html.a11y-bold p,
html.a11y-bold li,
html.a11y-bold span,
html.a11y-bold a,
html.a11y-bold label,
html.a11y-bold input,
html.a11y-bold textarea,
html.a11y-bold td,
html.a11y-bold th,
html.a11y-bold .MuiTypography-body1,
html.a11y-bold .MuiTypography-body2,
html.a11y-bold .MuiTypography-subtitle1,
html.a11y-bold .MuiTypography-subtitle2,
html.a11y-bold .MuiTypography-caption,
html.a11y-bold .MuiListItemText-primary,
html.a11y-bold .MuiListItemText-secondary,
html.a11y-bold .MuiFormLabel-root,
html.a11y-bold .MuiInputBase-input,
html.a11y-bold .MuiMenuItem-root,
html.a11y-bold .MuiButton-root,
html.a11y-bold .MuiChip-label,
html.a11y-bold .MuiTab-root {
  font-weight: 600 !important;
}

/* High contrast — strengthen the subtle parts of the (already-AAA) theme:
   solid dark borders, darker secondary text, underlined links, thicker focus.
   Brand colours and primary buttons are kept intact. */
html.a11y-contrast .MuiDivider-root,
html.a11y-contrast hr {
  border-color: var(--ts-ink) !important;
  opacity: 1 !important;
}
html.a11y-contrast .MuiOutlinedInput-notchedOutline {
  border-color: var(--ts-ink) !important;
  border-width: 2px !important;
}
html.a11y-contrast .MuiCard-root,
html.a11y-contrast .MuiDialog-paper,
html.a11y-contrast .MuiMenu-paper,
html.a11y-contrast .MuiPopover-paper {
  border: 2px solid var(--ts-ink) !important;
}
html.a11y-contrast .MuiInputLabel-root,
html.a11y-contrast .MuiFormHelperText-root,
html.a11y-contrast .MuiListItemText-secondary,
html.a11y-contrast .MuiTypography-caption,
html.a11y-contrast .MuiTypography-subtitle2 {
  color: var(--ts-ink-contrast-soft) !important;
  opacity: 1 !important;
}
html.a11y-contrast a:not(.MuiButton-root) {
  text-decoration: underline !important;
}
html.a11y-contrast *:focus-visible {
  outline: var(--ts-focus-width) solid var(--ts-burnt) !important;
  outline-offset: var(--ts-focus-offset) !important;
}
html.a11y-contrast .MuiSwitch-track {
  opacity: 1 !important;
  border: 1px solid var(--ts-ink) !important;
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Hide scrollbar but keep functionality on mobile */
@media (max-width: 768px) {
  body {
    -webkit-overflow-scrolling: touch;
  }
}

/* Print styles */
@media print {
  body {
    background-color: white !important;
  }

  .no-print {
    display: none !important;
  }
}

/* Loader — the spinner index.html paints before the bundle arrives.
   common/components/Loader.jsx toggles this element's `display` rather than
   mounting a second spinner, so the markup and this rule are both load-bearing:
   the base geometry lives in index.html's inline <style>, the brand tint here. */
.loader {
  border-top-color: var(--ts-gold) !important;
}

/* Animation keyframes */
@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

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

/* Apply animations to MUI components */
.MuiPaper-root.MuiPopover-paper {
  animation: fadeSlideIn 0.2s ease-out;
}

.MuiDialog-paper {
  animation: scaleIn 0.25s ease-out;
}

.MuiCard-root {
  animation: fadeSlideUp 0.3s ease-out;
}

.MuiSnackbar-root .MuiPaper-root {
  animation: fadeSlideUp 0.3s ease-out;
}

/* Smooth transitions for interactive elements */
button,
a,
.MuiButtonBase-root,
.MuiListItemButton-root,
.MuiIconButton-root {
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Skeleton loading animation */
.MuiSkeleton-root {
  background: linear-gradient(
    90deg,
    var(--ts-skeleton-base) 25%,
    var(--ts-skeleton-wave) 50%,
    var(--ts-skeleton-base) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

/* Better hover states for cards and papers */
.MuiCard-root:hover,
.MuiPaper-root:hover {
  cursor: default;
}

/* Loading spinner custom style */
.loading-spinner {
  animation: pulse 1.5s ease-in-out infinite;
}

/* ===== REDUCED MOTION SUPPORT ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .MuiPaper-root.MuiPopover-paper,
  .MuiDialog-paper,
  .MuiCard-root,
  .MuiSnackbar-root .MuiPaper-root {
    animation: none !important;
  }

  .MuiSkeleton-root {
    animation: none !important;
  }
}

/* ===== SCREEN READER ONLY UTILITY ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===== TOUCH TARGET SIZE FOR MOBILE ACCESSIBILITY ===== */
@media (pointer: coarse) {
  button,
  a,
  [role="button"],
  .MuiIconButton-root {
    min-height: 44px;
    min-width: 44px;
  }
}

/* ===== CROSS-PAGE VIEW TRANSITIONS =====
   Used by react-router navigations opted in with { viewTransition: true }.
   Old page fades up and out, new page rises in — same motion language as
   the fadeSlideUp entrance. Browsers without the View Transitions API
   simply swap pages instantly. */
@keyframes vt-page-out {
  to {
    opacity: 0;
    transform: translateY(-10px);
  }
}
@keyframes vt-page-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
}
::view-transition-old(root) {
  animation: vt-page-out 200ms cubic-bezier(0.4, 0, 0.2, 1) both;
}
::view-transition-new(root) {
  animation: vt-page-in 300ms cubic-bezier(0.16, 1, 0.3, 1) 60ms both;
}
@media (prefers-reduced-motion: reduce) {
  ::view-transition-old(root),
  ::view-transition-new(root) {
    animation: none;
  }
}