/* =========================================================
   UI POLISH — extra.css
   Layered on top of retro-home.css and but-why.css.
   ========================================================= */


/* =========================================================
   SECTION SEPARATION
   ========================================================= */

.retro-content-page h2 {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--retro-inner-border);
}

.retro-content-page h1 + h2 {
  margin-top: 1.25rem;
  padding-top: 0;
  border-top: none;
}

.retro-content-page h3 {
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
}

.retro-content-page p {
  margin-bottom: 1rem;
}

.retro-content-page ul,
.retro-content-page ol {
  margin-bottom: 1.25rem;
}

.retro-content-page .retro-panel,
.retro-content-page table {
  margin-top: 1.25rem;
  margin-bottom: 1.5rem;
}

.retro-content-page .retro-content-footer {
  margin-top: 2rem;
}


/* =========================================================
   CODE / INSTRUCTION BLOCK CLARITY
   ========================================================= */

.retro-content-page code,
#retro-homepage code {
  font-family: "Courier New", Courier, monospace;
  font-size: 0.9em;
  padding: 0.15em 0.45em;
  background: var(--retro-surface-2);
  border: 1px solid var(--retro-inner-border);
  color: var(--retro-accent-soft);
  border-radius: 0;
}

.retro-content-page pre,
#retro-homepage pre {
  background: var(--retro-surface-2);
  border: 1px solid var(--retro-border-soft);
  padding: 1rem 1.25rem;
  margin: 1.25rem 0;
  overflow-x: auto;
  max-width: 100%;
  box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.2);
}

.retro-content-page pre code,
#retro-homepage pre code {
  padding: 0;
  background: transparent;
  border: none;
  color: var(--retro-text);
  font-size: 0.88rem;
  line-height: 1.6;
}

html.retro-a11y-active .retro-content-page code,
html.retro-a11y-active #retro-homepage code {
  background: rgba(0, 0, 0, 0.06);
  border-color: rgba(0, 0, 0, 0.12);
  color: #1a1a1a;
}

html.retro-a11y-active .retro-content-page pre,
html.retro-a11y-active #retro-homepage pre {
  background: rgba(0, 0, 0, 0.04);
  border-color: rgba(0, 0, 0, 0.12);
  box-shadow: none;
}


/* =========================================================
   INTERACTIVE LINKS
   ========================================================= */

.retro-content-page a:not(.retro-button):not(.retro-nav-button):not(.retro-section-nav__link) {
  text-decoration: underline;
  text-decoration-color: var(--retro-accent-border-soft);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition:
    color 0.15s ease,
    text-decoration-color 0.15s ease;
}

.retro-content-page a:not(.retro-button):not(.retro-nav-button):not(.retro-section-nav__link):hover,
.retro-content-page a:not(.retro-button):not(.retro-nav-button):not(.retro-section-nav__link):focus {
  text-decoration-color: var(--retro-accent);
}

html.retro-a11y-active .retro-content-page a:not(.retro-button):not(.retro-nav-button):not(.retro-section-nav__link) {
  text-decoration-color: rgba(0, 0, 0, 0.3);
}

html.retro-a11y-active .retro-content-page a:not(.retro-button):not(.retro-nav-button):not(.retro-section-nav__link):hover,
html.retro-a11y-active .retro-content-page a:not(.retro-button):not(.retro-nav-button):not(.retro-section-nav__link):focus {
  text-decoration-color: rgba(0, 0, 0, 0.6);
}


/* =========================================================
   SCROLL EXPERIENCE
   ========================================================= */

@media (max-width: 991.98px) {
  .retro-content-page h1[id],
  .retro-content-page h2[id],
  .retro-content-page h3[id],
  .retro-content-page h4[id] {
    scroll-margin-top: 64px;
  }
}

@media (min-width: 992px) {
  .retro-content-page h1[id],
  .retro-content-page h2[id],
  .retro-content-page h3[id],
  .retro-content-page h4[id] {
    scroll-margin-top: 24px;
  }
}


/* =========================================================
   TABLE OVERFLOW
   ========================================================= */

.retro-content-page table {
  display: block;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}


/* =========================================================
   HEADING SCALE SYSTEM
   Fill in the gaps left by retro-home.css so every
   heading level has a clear, proportional size at each
   breakpoint. Values here override the scattered sizes
   in retro-home.css by loading later in the cascade.

   Desktop:  h1 3.2rem  h2 1.85rem  h3 1.3rem
   Tablet:   h1 2.4rem  h2 1.5rem   h3 1.2rem
   Mobile:   h1 2rem    h2 1.35rem  h3 1.12rem
   Small:    h1 1.65rem h2 1.2rem   h3 1.05rem
   ========================================================= */

.retro-content-page h3 {
  font-size: 1.3rem;
}

@media (max-width: 991px) {
  .retro-content-page h1 {
    font-size: 2.4rem;
  }

  .retro-content-page h2 {
    font-size: 1.5rem;
  }

  .retro-content-page h3 {
    font-size: 1.2rem;
  }
}

@media (max-width: 700px) {
  .retro-content-page h1 {
    font-size: 2rem;
  }

  .retro-content-page h2 {
    font-size: 1.35rem;
  }

  .retro-content-page h3 {
    font-size: 1.12rem;
  }
}

@media (max-width: 480px) {
  .retro-content-page h1 {
    font-size: 1.65rem;
    margin-bottom: 12px;
    padding-bottom: 8px;
  }

  .retro-content-page h2 {
    font-size: 1.2rem;
    margin-bottom: 8px;
  }

  .retro-content-page h3 {
    font-size: 1.05rem;
  }
}


/* =========================================================
   MOBILE LAYOUT — SPACING AND RHYTHM
   Scale down section gaps, panels, footers, and component
   padding so mobile feels intentional, not squeezed.
   ========================================================= */

/* Tablet */
@media (max-width: 991px) {
  .retro-content-page h2 {
    margin-top: 2rem;
    padding-top: 1.25rem;
  }

  .retro-content-page .retro-content-footer {
    margin-top: 1.5rem;
  }
}

/* Mobile */
@media (max-width: 700px) {
  .retro-content-page h2 {
    margin-top: 1.75rem;
    padding-top: 1rem;
  }

  .retro-content-page h3 {
    margin-top: 1.25rem;
  }

  .retro-content-page .retro-panel {
    padding: 14px;
    margin-top: 1rem;
    margin-bottom: 1.25rem;
  }

  .retro-content-page .retro-content-footer {
    margin-top: 1.25rem;
  }

  .retro-content-page pre,
  #retro-homepage pre {
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
  }

  /* Flip card faces: tighter padding */
  .retro-nav-tile__face {
    padding: 1rem;
    min-height: 240px;
  }

  .retro-flip-card__face {
    padding: 1.1rem;
  }

  .retro-flip-card__inner {
    min-height: 360px;
  }

  /* Carousel: don't increase min-height on mobile */
  .retro-why-carousel__viewport {
    min-height: 220px;
  }

  .retro-why-slide .retro-panel {
    min-height: 220px;
  }
}

/* Small mobile */
@media (max-width: 480px) {
  .retro-content-page h2 {
    margin-top: 1.5rem;
    padding-top: 0.75rem;
  }

  .retro-content-page h3 {
    margin-top: 1rem;
  }

  .retro-content-page .retro-panel {
    padding: 12px;
    margin-top: 0.75rem;
    margin-bottom: 1rem;
  }

  .retro-content-page .retro-content-footer {
    margin-top: 1rem;
  }

  .retro-content-page p {
    margin-bottom: 0.75rem;
  }

  .retro-content-page ul,
  .retro-content-page ol {
    margin-bottom: 1rem;
    padding-left: 18px;
  }

  /* Flip cards: allow narrower than 340px */
  .retro-flip-grid {
    grid-template-columns: 1fr;
  }

  .retro-flip-card__inner {
    min-height: 320px;
  }

  .retro-flip-card__face {
    padding: 1rem;
  }

  .retro-nav-tile__face {
    padding: 0.9rem;
    min-height: 200px;
  }

  .retro-nav-tile__front h3 {
    font-size: 1.15rem;
  }
}


/* =========================================================
   TOUCH-TARGET POLISH
   ========================================================= */

/* Buttons: active / pressed state */
#retro-homepage .retro-button:active,
.retro-content-page .retro-button:active {
  transform: translateY(1px);
  box-shadow: 0 0 4px var(--retro-accent-glow-soft);
}

/* Buttons: visible focus ring for keyboard */
#retro-homepage .retro-button:focus-visible,
.retro-content-page .retro-button:focus-visible {
  outline: 2px solid var(--retro-accent);
  outline-offset: 3px;
}

/* Skip intro button: focus ring */
#retro-homepage .retro-skip-intro:focus-visible {
  outline: 2px solid var(--retro-accent);
  outline-offset: 3px;
}

/* Mobile: increase nav touch targets */
@media (max-width: 991.98px) {
  .navbar-nav .nav-link {
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .navbar .dropdown-item {
    min-height: 44px;
    display: flex;
    align-items: center;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
  }
}

/* Copy button: larger tap area on mobile */
@media (max-width: 700px) {
  .retro-copy-button {
    min-height: 44px;
    padding: 0.55rem 0.9rem;
  }
}


/* =========================================================
   CARD AND PANEL CONSISTENCY
   ========================================================= */

/* Image panels: match base panel border style */
.retro-image-panel {
  border-color: var(--retro-border-soft);
}

/* Copy items: match base panel background */
.retro-copy-item {
  background: var(--retro-surface-2);
}

/* Status key items: match surface colour */
.retro-status-key__item {
  background: var(--retro-surface-2);
}


/* =========================================================
   NAVIGATION REFINEMENT
   ========================================================= */

/* Dropdown item padding — consistent base */
.navbar .dropdown-item {
  padding-top: 0.45rem;
  padding-bottom: 0.45rem;
}

/* Active dropdown item — stronger left border for scannability */
.navbar .dropdown-item.active {
  border-left-width: 3px;
  border-left-style: solid;
}

/* Styled sidebar scrollbar (desktop) */
@media (min-width: 992px) {
  .navbar.fixed-top > .container {
    scrollbar-width: thin;
    scrollbar-color: rgba(95, 132, 184, 0.25) transparent;
  }

  .navbar.fixed-top > .container::-webkit-scrollbar {
    width: 5px;
  }

  .navbar.fixed-top > .container::-webkit-scrollbar-track {
    background: transparent;
  }

  .navbar.fixed-top > .container::-webkit-scrollbar-thumb {
    background: rgba(95, 132, 184, 0.25);
    border-radius: 3px;
  }

  .navbar.fixed-top > .container::-webkit-scrollbar-thumb:hover {
    background: rgba(95, 132, 184, 0.45);
  }

  /* Desktop sidebar: tighter group header spacing */
  .navbar-nav > .nav-item.dropdown > .dropdown-toggle {
    padding-top: 0.6rem !important;
    padding-bottom: 0.3rem !important;
  }

  /* Subtle fade-in for dropdown menus */
  .navbar .nav-item.dropdown.show > .dropdown-menu {
    animation: navDropdownReveal 0.15s ease-out;
  }

  @keyframes navDropdownReveal {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
  }
}

/* Mobile nav refinements */
@media (max-width: 991.98px) {
  .navbar .dropdown-item {
    font-size: 0.78rem;
    line-height: 1.35;
  }

  .navbar .dropdown-item.active {
    background: rgba(95, 132, 184, 0.18) !important;
  }
}

/* Long nav labels: prevent awkward mid-word breaks */
.navbar-nav .nav-link,
.navbar .dropdown-item {
  hyphens: auto;
  -webkit-hyphens: auto;
}


/* =========================================================
   MOTION CONSISTENCY
   Standardise timing to 0.15s for interactive elements.
   Button base transitions in retro-home.css use 0.18s;
   override here for consistency.
   ========================================================= */

#retro-homepage .retro-button,
.retro-content-page .retro-button {
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease,
    background 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease;
}

.retro-content-page .retro-panel,
.retro-content-page .retro-copy-item,
.retro-image-panel {
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.navbar .dropdown-item {
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.navbar-nav > .nav-item > .nav-link {
  transition:
    color 0.15s ease,
    background 0.15s ease,
    border-color 0.15s ease,
    box-shadow 0.15s ease;
}


/* =========================================================
   REDUCED-MOTION AND ACCESSIBILITY
   ========================================================= */

@media (prefers-reduced-motion: reduce) {
  /* Page and content entrance animations */
  #retro-homepage,
  .retro-content-page,
  .retro-content-page .retro-main-content {
    animation: none !important;
  }

  /* Frame overlay animations */
  #retro-homepage.theme-level-home::after,
  .retro-content-page::after {
    animation: none !important;
  }

  /* Button pulse */
  .retro-button-pulse {
    animation: none !important;
  }

  /* Logo glitch */
  .retro-logo-glitch::before,
  .retro-logo-glitch::after,
  .retro-logo-glitch.is-glitching::before,
  .retro-logo-glitch.is-glitching::after {
    animation: none !important;
    opacity: 0 !important;
  }

  /* Kicker/theme/toggle shine effects */
  .retro-content-kicker:hover::after,
  .retro-theme-btn:hover::after,
  .retro-navbar-toggle:hover::after {
    animation: none !important;
  }

  /* Skip intro fade-in: show immediately */
  #retro-homepage .retro-skip-intro {
    animation: none !important;
    opacity: 0.55 !important;
  }

  /* Dropdown reveal */
  .navbar .nav-item.dropdown.show > .dropdown-menu {
    animation: none !important;
  }

  /* Flip card / nav tile: instant flip */
  .retro-nav-tile__inner,
  .retro-flip-card__inner {
    transition-duration: 0.01s !important;
  }

  .retro-nav-tile.is-animating-a,
  .retro-nav-tile.is-animating-b,
  .retro-nav-tile.is-animating-c,
  .retro-flip-card.is-animating-a,
  .retro-flip-card.is-animating-b,
  .retro-flip-card.is-animating-c {
    animation: none !important;
  }

  /* Stepper slide animation */
  .retro-step-panel.is-active {
    animation: none !important;
  }

  /* WIP banner pulse */
  .retro-wip-banner__label {
    animation: none !important;
  }

  .retro-wip-banner__bar {
    animation: none !important;
    opacity: 0.7 !important;
    transform: none !important;
  }

  /* Important heading glow */
  .retro-important-heading {
    animation: none !important;
  }

  /* Nav boot/power-down */
  .retro-nav-booting .navbar-nav .nav-link,
  .retro-nav-booting .navbar-nav .dropdown-item,
  .retro-nav-booting .navbar-brand,
  .retro-nav-powering-down .navbar-nav .nav-link,
  .retro-nav-powering-down .navbar-nav .dropdown-item,
  .retro-nav-powering-down .navbar-brand {
    animation: none !important;
  }

  /* Transition overlay effects */
  .retro-reveal__flash,
  .retro-reveal__line,
  .retro-reveal__text {
    animation: none !important;
  }

  .retro-transition__scanlines,
  .retro-transition__flash,
  .retro-transition__grid,
  .retro-transition__beam,
  .retro-transition__stars,
  .retro-transition__terminal {
    animation: none !important;
  }

  /* Copy sparkle */
  .retro-copy-sparkle {
    animation: none !important;
  }

  /* Smooth scrolling: off */
  html {
    scroll-behavior: auto !important;
  }

  /* Carousel viewport transition */
  .retro-why-carousel__viewport,
  .retro-step-stage {
    transition: none !important;
  }

  /* All remaining transitions: flatten to near-instant */
  *,
  *::before,
  *::after {
    transition-duration: 0.01s !important;
  }
}

/* Keyboard focus: global fallback for anything interactive */
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--retro-accent);
  outline-offset: 2px;
}