/*
 * TestKinks — Neon Obsidian Shell
 * Covers: header, nav states, mobile tab bar, footer trust bento,
 *         micro-interactions, progress bar, a11y hardening.
 *
 * Depends on: design tokens in style.css :root
 * DES-002 · DES-003 · DES-005 · DES-006 · DES-007 · DES-008 · DES-009
 */

/* ================================================================
   RESET / BODY OFFSET
   Compensate for the fixed header so no content is clipped.
   ================================================================ */
:root {
  --tk-admin-bar-offset: 0px;
}

/* WordPress admin bar adds a margin to html; neutralize and manage offset here. */
html {
  margin-top: 0 !important;
}

.admin-bar {
  --tk-admin-bar-offset: 32px;
}

@media (max-width: 782px) {
  .admin-bar {
    --tk-admin-bar-offset: 46px;
  }
}

body {
  padding-top: calc(var(--tk-header-height) + var(--tk-admin-bar-offset));
}

@media (max-width: 768px) {
  :root {
    --tk-tab-bar-height: 0px;
  }

  body {
    padding-top: calc(var(--tk-header-height-mobile) + var(--tk-admin-bar-offset));
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }
}

/* ================================================================
   MOBILE FIRST-SECTION SPACING
   Reduce compounded top padding below the fixed header.
   ================================================================ */
@media (max-width: 768px) {
  .tk-contact,
  .tk-editorial,
  .results-container,
  .rp-page,
  .quiz-container,
  .tk-compare-shell,
  .dashboard-container,
  .archetypes-container {
    padding-top: var(--tk-space-4);
  }
}

/* ================================================================
   SITE HEADER  (DES-002)
   ================================================================ */
.tk-shell-nav {
  position: fixed;
  top: var(--tk-admin-bar-offset);
  left: 0;
  right: 0;
  z-index: var(--tk-z-header);
  height: var(--tk-header-height);
  display: flex;
  align-items: center;
  padding: 0 var(--tk-space-6);

  /* Frosted glass */
  background: var(--tk-frosted-bg);
  -webkit-backdrop-filter: blur(var(--tk-frosted-blur));
          backdrop-filter: blur(var(--tk-frosted-blur));
  border-bottom: var(--tk-frosted-border);
  box-shadow: var(--tk-shadow-header);

  /* Graceful fallback where backdrop-filter is unsupported */
  /* @supports rule below overrides background for capable browsers */
}

@supports not (backdrop-filter: blur(1px)) {
  .tk-shell-nav {
    background: var(--obsidian-base);
  }
}

@media (max-width: 768px) {
  .tk-shell-nav {
    height: var(--tk-header-height-mobile);
    padding: 0 var(--tk-space-4);
  }
}

/* Inner three-slot grid: logo | nav | quick-exit */
.tk-shell-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  gap: var(--tk-space-5);
}

.tk-shell-nav__actions {
  display: flex;
  align-items: center;
  gap: var(--tk-space-3);
}

/* ── Progress strip (DES-007) ─────────────────────────────────── */
.tk-header-progress {
  position: absolute;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;                      /* driven by JS: style.width = X% */
  background: var(--electric-pink);
  transition: var(--tk-transition-progress);
  z-index: 1;
  border-radius: 0 2px 2px 0;
}

/* Pink pulse border — races around header on micro-reward (DES-007) */
.tk-shell-nav::after {
  content: "";
  pointer-events: none;
  position: absolute;
  inset: 0;
  border: 1.5px solid transparent;
  border-radius: inherit;
  opacity: 0;
  transition: var(--tk-transition-pulse);
}

.tk-shell-nav.tk-shell-nav--pulse::after {
  border-color: var(--electric-pink);
  box-shadow: var(--tk-glow-pink);
  opacity: 1;
  animation: tk-header-pulse 1200ms var(--tk-ease-standard) forwards;
}

@keyframes tk-header-pulse {
  0%   { opacity: 0; }
  20%  { opacity: 1; }
  80%  { opacity: 1; }
  100% { opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .tk-shell-nav.tk-shell-nav--pulse::after {
    animation: none;
    opacity: 0;
  }
  .tk-header-progress {
    transition: none;
  }
}

/* ================================================================
   WORDMARK / LOGO  (DES-002)
   ================================================================ */
.tk-wordmark {
  font-family: var(--tk-font-wordmark);
  font-size: var(--tk-font-size-xl);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-decoration: none;
  white-space: nowrap;
  line-height: 1;
  flex-shrink: 0;
}

.tk-wordmark__bdsm {
  color: var(--precision-silver);
}

.tk-wordmark__tests {
  color: transparent;
  -webkit-text-stroke: 1px var(--electric-pink);
          text-stroke:  1px var(--electric-pink);
  /* Fallback for browsers without text-stroke */
  text-shadow: 0 0 0 var(--electric-pink);
}

@supports not (-webkit-text-stroke: 1px) {
  .tk-wordmark__tests {
    color: var(--electric-pink);
    text-shadow: none;
  }
}

/* ================================================================
   DESKTOP NAV  (DES-002 / DES-003)
   ================================================================ */
.tk-nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.tk-nav ul {
  display: flex;
  align-items: center;
  gap: var(--tk-space-2);
  list-style: none;
  margin: 0;
  padding: 0;
}

.tk-nav a {
  position: relative;
  display: inline-block;
  padding: var(--tk-space-2) var(--tk-space-3);
  font-family: var(--tk-font-nav);
  font-size: var(--tk-font-size-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--tk-ink-300);
  text-decoration: none;
  transition: var(--tk-transition-nav);
}

/* Hover underline: 1px pink line expands from centre (DES-007) */
.tk-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 1px;
  background: var(--electric-pink);
  transform: translateX(-50%);
  transition: var(--tk-transition-underline);
}

.tk-nav a:hover,
.tk-nav a:focus-visible {
  color: var(--tk-ink-100);
  outline: none;
}

.tk-nav a:hover::after,
.tk-nav a:focus-visible::after {
  width: 100%;
}

.tk-nav a:focus-visible {
  box-shadow: 0 0 0 2px var(--electric-pink);
  border-radius: var(--tk-radius-xs);
}

@media (prefers-reduced-motion: reduce) {
  .tk-nav a::after {
    transition: none;
  }
}

/* ── Current page indicator ──────────────────────────────────── */
.tk-nav .current-menu-item > a,
.tk-nav .current_page_item > a {
  color: var(--tk-ink-100);
}

.tk-nav .current-menu-item > a::after,
.tk-nav .current_page_item > a::after {
  width: 100%;
  background: var(--electric-pink);
  box-shadow: 0 0 6px rgba(var(--electric-pink-rgb), 0.6);
}

/* ── Mirror Link sync indicator (DES-003) ────────────────────── */
.tk-nav-sync {
  display: inline-flex;
  align-items: center;
  gap: var(--tk-space-2);
  padding: var(--tk-space-1) var(--tk-space-3);
  border-radius: var(--tk-radius-lg);
  border: 1px solid rgba(var(--electric-pink-rgb), 0.30);
  background: rgba(var(--electric-pink-rgb), 0.08);
  font-size: var(--tk-font-size-xs);
  font-weight: 600;
  color: var(--electric-pink);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
}

.tk-nav-sync__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--electric-pink);
  box-shadow: 0 0 6px rgba(var(--electric-pink-rgb), 0.7);
  animation: tk-pulse-dot 2s ease-in-out infinite;
}

@keyframes tk-pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.75); }
}

@media (prefers-reduced-motion: reduce) {
  .tk-nav-sync__dot {
    animation: none;
  }
}

/* ================================================================
   QUICK EXIT BUTTON  (DES-002 / DES-009)
   ================================================================ */
.quick-exit {
  /* Override any legacy positioning — keep it inside the header slot */
  position: static !important;
  flex-shrink: 0;
  font-size: var(--tk-font-size-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: var(--tk-space-2) var(--tk-space-4);
  border-radius: var(--tk-radius-sm);
  background: rgba(var(--electric-pink-rgb), 0.12);
  border: 1px solid rgba(var(--electric-pink-rgb), 0.35);
  color: var(--electric-pink);
  text-decoration: none;
  transition:
    background var(--tk-duration-fast) var(--tk-ease-out),
    box-shadow  var(--tk-duration-fast) var(--tk-ease-out);
  cursor: pointer;
}

.quick-exit:hover,
.quick-exit:focus-visible {
  background: rgba(var(--electric-pink-rgb), 0.22);
  box-shadow: var(--tk-glow-pink);
  color: var(--electric-pink);
  outline: none;
}

.quick-exit:focus-visible {
  box-shadow: 0 0 0 2px var(--electric-pink);
}

/* Hide text label, show icon only on very small viewports */
@media (max-width: 400px) {
  .quick-exit .quick-exit__label {
    display: none;
  }
}

/* ================================================================
   DESKTOP NAV VARIANTS (DES-003)
   guest / individual / couples — toggled via body data attribute
   ================================================================ */

/* Couples variant: subtle tint on the nav wrapper */
body[data-tk-nav-mode="couples"] .tk-nav {
  /* no structural change needed; sync badge does the job */
}

/* Hide the WP fallback menu on mobile — replaced by tab bar */
@media (max-width: 768px) {
  .tk-nav {
    display: none;
  }
}

/* ================================================================
   MOBILE NAV TOGGLE + DRAWER (EPIC-NAV-02)
   ================================================================ */
.tk-nav-toggle {
  display: none;
  align-items: center;
  justify-content: flex-end;
  width: auto;
  height: 44px;
  border: none;
  background: transparent;
  color: hsl(220, 5%, 90%);
  cursor: pointer;
  padding: 0;
  gap: 8px;
  transition:
    transform 400ms cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 400ms cubic-bezier(0.22, 1, 0.36, 1),
    background 400ms cubic-bezier(0.22, 1, 0.36, 1);
}

.tk-nav-toggle:hover,
.tk-nav-toggle:focus-visible {
  color: hsl(220, 5%, 96%);
  outline: none;
}

.tk-nav-toggle:focus-visible {
  box-shadow: none;
}

.tk-nav-toggle:hover .tk-nav-toggle__icon,
.tk-nav-toggle:focus-visible .tk-nav-toggle__icon {
  background: hsla(220, 12%, 12%, 0.95);
}

.tk-nav-toggle__label {
  font-family: var(--tk-font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: inherit;
}

.tk-nav-toggle__icon {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid hsl(260, 10%, 40%);
  background: hsla(220, 12%, 10%, 0.8);
  transition:
    box-shadow 400ms cubic-bezier(0.22, 1, 0.36, 1),
    background 400ms cubic-bezier(0.22, 1, 0.36, 1);
}

.tk-nav-toggle__bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition:
    transform 400ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 400ms cubic-bezier(0.22, 1, 0.36, 1);
}

.tk-nav-toggle.is-open {
  color: hsl(220, 5%, 96%);
}

.tk-nav-toggle.is-open .tk-nav-toggle__icon {
  box-shadow: 0 0 0 4px rgba(var(--electric-pink-rgb), 0.45),
    0 0 18px rgba(var(--electric-pink-rgb), 0.5);
}

.tk-nav-toggle:focus-visible .tk-nav-toggle__icon {
  box-shadow: 0 0 0 2px var(--electric-pink);
}

.tk-nav-toggle.is-open .tk-nav-toggle__bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.tk-nav-toggle.is-open .tk-nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.tk-nav-toggle.is-open .tk-nav-toggle__bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 768px) {
  .tk-nav-toggle {
    display: inline-flex;
  }

  .tk-shell-nav__actions {
    margin-left: auto;
  }
}

.tk-mobile-drawer {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: hsla(220, 15%, 5%, 0.95);
  -webkit-backdrop-filter: blur(25px);
          backdrop-filter: blur(25px);
  --tk-texture-opacity: 0.06;
  --tk-texture-blend: overlay;
  opacity: 0;
  pointer-events: none;
  transition: opacity 600ms cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity;
}

.tk-mobile-drawer .tk-texture-layer__overlay {
  height: 100%;
}

.tk-mobile-drawer.is-open {
  opacity: 1;
  pointer-events: auto;
}

.tk-mobile-drawer__scrim {
  display: none;
}

.tk-mobile-drawer__panel {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  padding:
    calc(env(safe-area-inset-top, 0px) + var(--tk-space-6))
    var(--tk-space-5)
    calc(env(safe-area-inset-bottom, 0px) + var(--tk-space-6));
  background: transparent;
  box-shadow: 0 0 60px rgba(0, 0, 0, 0.55);
  transform: translate3d(100%, 0, 0);
  opacity: 0;
  transition: transform 600ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 600ms cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform, opacity;
}

.tk-mobile-drawer.is-open .tk-mobile-drawer__panel {
  transform: translate3d(0, 0, 0);
  opacity: 1;
}

.tk-mobile-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--tk-space-4);
  margin-bottom: var(--tk-space-6);
}

.tk-mobile-drawer__eyebrow {
  font-family: var(--tk-font-mono-label);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted-lavender);
}

.tk-drawer-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.04);
  color: var(--precision-silver);
  cursor: pointer;
  transition: transform var(--tk-duration-fast) var(--tk-ease-out),
    box-shadow var(--tk-duration-fast) var(--tk-ease-out),
    color var(--tk-duration-fast) var(--tk-ease-out);
}

.tk-drawer-close:hover,
.tk-drawer-close:focus-visible {
  color: var(--tk-ink-100);
  box-shadow: var(--tk-shadow-header);
  outline: none;
}

.tk-mobile-drawer__body {
  display: flex;
  flex-direction: column;
  gap: var(--tk-space-7);
  height: 100%;
}

.tk-mobile-drawer__zone {
  display: flex;
  flex-direction: column;
  gap: var(--tk-space-4);
}

.tk-mobile-drawer__zone--identity {
  align-items: center;
  text-align: center;
}

.tk-mobile-drawer__wordmark {
  font-size: clamp(1.25rem, 3vw, 1.6rem);
}

.tk-mobile-drawer__identity {
  font-family: var(--tk-font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted-teal);
}

.tk-mobile-drawer__section-title {
  font-family: var(--tk-font-mono-label);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted-lavender);
  margin: 0;
}

.tk-mobile-drawer__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--tk-space-3);
}

.tk-mobile-drawer__item {
  opacity: 0;
  transform: translateY(10px);
}

.tk-mobile-drawer.is-open .tk-mobile-drawer__item {
  animation: tk-drawer-item 360ms var(--tk-ease-standard) forwards;
}

.tk-mobile-drawer.is-open .tk-mobile-drawer__item:nth-child(1) { animation-delay: 50ms; }
.tk-mobile-drawer.is-open .tk-mobile-drawer__item:nth-child(2) { animation-delay: 100ms; }
.tk-mobile-drawer.is-open .tk-mobile-drawer__item:nth-child(3) { animation-delay: 150ms; }
.tk-mobile-drawer.is-open .tk-mobile-drawer__item:nth-child(4) { animation-delay: 200ms; }
.tk-mobile-drawer.is-open .tk-mobile-drawer__item:nth-child(5) { animation-delay: 250ms; }
.tk-mobile-drawer.is-open .tk-mobile-drawer__item:nth-child(6) { animation-delay: 300ms; }
.tk-mobile-drawer.is-open .tk-mobile-drawer__item:nth-child(7) { animation-delay: 350ms; }
.tk-mobile-drawer.is-open .tk-mobile-drawer__item:nth-child(8) { animation-delay: 400ms; }
.tk-mobile-drawer.is-open .tk-mobile-drawer__item:nth-child(9) { animation-delay: 450ms; }

@keyframes tk-drawer-item {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tk-mobile-drawer__link {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--tk-space-2);
  padding: var(--tk-space-3) var(--tk-space-4);
  min-height: 48px;
  border-radius: var(--tk-radius-md);
  font-family: var(--tk-font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--tk-ink-100);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  padding-right: 52px;
  transition: transform var(--tk-duration-fast) var(--tk-ease-out),
    box-shadow var(--tk-duration-fast) var(--tk-ease-out),
    border-color var(--tk-duration-fast) var(--tk-ease-out);
}

.tk-mobile-drawer__text {
  flex: 1;
}

.tk-mobile-drawer__link::after {
  content: "";
  position: absolute;
  right: var(--tk-space-4);
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--tk-gold-400);
  box-shadow: 0 0 8px rgba(226, 192, 124, 0.5);
  transform: rotate(45deg);
  opacity: 0;
}

.tk-mobile-drawer__link.is-tapped {
  background: rgba(var(--electric-pink-rgb), 0.18);
  border-color: rgba(var(--electric-pink-rgb), 0.6);
  box-shadow: 0 0 18px rgba(var(--electric-pink-rgb), 0.45);
  animation: tk-drawer-tap 220ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.tk-mobile-drawer__link.is-tapped::after {
  opacity: 1;
}

@keyframes tk-drawer-tap {
  0% {
    background: rgba(var(--electric-pink-rgb), 0.22);
  }
  100% {
    background: rgba(255, 255, 255, 0.03);
  }
}

.tk-mobile-drawer__link:hover,
.tk-mobile-drawer__link:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(var(--electric-pink-rgb), 0.35);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.35);
  outline: none;
}

.tk-mobile-drawer__item.is-active .tk-mobile-drawer__link,
.tk-mobile-drawer__link[aria-current="page"] {
  border-color: rgba(var(--electric-pink-rgb), 0.5);
  box-shadow: var(--tk-glow-pink);
}

.tk-mobile-drawer__item.is-active .tk-mobile-drawer__link::after,
.tk-mobile-drawer__link[aria-current="page"]::after {
  opacity: 1;
}

.tk-drawer-pulse {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--electric-pink);
  box-shadow: 0 0 10px rgba(var(--electric-pink-rgb), 0.7);
  animation: tk-pulse-dot 1.6s ease-in-out infinite;
}

.tk-mobile-drawer__zone--sovereignty {
  margin-top: auto;
  padding-top: var(--tk-space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  gap: var(--tk-space-4);
}

.tk-mobile-drawer__wording .tk-wording-toggle {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--tk-radius-md);
  padding: var(--tk-space-4);
  margin: 0;
}

.tk-mobile-drawer__wording .tk-wording-toggle__form {
  margin: 0;
  display: grid;
  gap: var(--tk-space-3);
}

.tk-mobile-drawer__wording .tk-wording-toggle__label {
  font-family: var(--tk-font-mono-label);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted-teal);
  margin-bottom: var(--tk-space-3);
}

.tk-mobile-drawer__wording .tk-wording-toggle__options label {
  min-height: 48px;
  align-items: center;
}

.tk-mobile-drawer__wording .tk-wording-toggle__helper,
.tk-mobile-drawer__wording .tk-wording-toggle__status {
  color: var(--tk-ink-500);
}
}

.tk-mobile-drawer__quick-exit {
  display: flex;
  align-items: center;
  width: 100%;
  justify-content: center;
  text-align: center;
  min-height: 48px;
}

body.tk-drawer-open {
  overflow: hidden;
  touch-action: none;
}

@media (min-width: 769px) {
  .tk-mobile-drawer {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tk-mobile-drawer,
  .tk-mobile-drawer__scrim,
  .tk-mobile-drawer__panel,
  .tk-mobile-drawer__item {
    transition: none;
    animation: none;
  }

  .tk-drawer-pulse {
    animation: none;
  }

  .tk-mobile-drawer__link.is-tapped {
    animation: none;
  }
}

/* ================================================================
   MOBILE BOTTOM TAB BAR  (DES-005)
   ================================================================ */
.tk-tab-bar {
  display: none; /* hidden on desktop */
}

@media (max-width: 768px) {
  .tk-tab-bar {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: var(--tk-z-tab-bar);
    height: calc(var(--tk-tab-bar-height) + env(safe-area-inset-bottom, 0px));
    padding-bottom: env(safe-area-inset-bottom, 0px);
    align-items: stretch;

    background: var(--tk-frosted-bg);
    -webkit-backdrop-filter: blur(var(--tk-frosted-blur));
            backdrop-filter: blur(var(--tk-frosted-blur));
    border-top: var(--tk-frosted-border);
    box-shadow: var(--tk-shadow-footer);
  }

  @supports not (backdrop-filter: blur(1px)) {
    .tk-tab-bar {
      background: var(--obsidian-base);
    }
  }
}

.tk-tab-bar__item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: var(--tk-space-2) var(--tk-space-1);
  text-decoration: none;
  color: var(--tk-ink-500);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color var(--tk-duration-fast) var(--tk-ease-out);
  border: none;
  background: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  min-width: 44px; /* a11y: min touch target */
}

.tk-tab-bar__item:focus-visible {
  outline: 2px solid var(--electric-pink);
  outline-offset: -2px;
  border-radius: var(--tk-radius-xs);
}

.tk-tab-bar__item--active,
.tk-tab-bar__item[aria-current="page"] {
  color: var(--electric-pink);
}

.tk-tab-bar__icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

/* Sync tab dot indicator */
.tk-tab-bar__item--sync .tk-tab-sync-dot {
  display: none;
}

.tk-tab-bar__item--sync.tk-tab-bar__item--connected .tk-tab-sync-dot {
  display: block;
  position: absolute;
  top: 8px;
  right: calc(50% - 14px);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--electric-pink);
  box-shadow: 0 0 6px rgba(var(--electric-pink-rgb), 0.7);
}

.tk-tab-bar__item--sync {
  position: relative;
}

/* ================================================================
   FOOTER TRUST BENTO  (DES-006)
   ================================================================ */
.tk-footer {
  background: var(--tk-frosted-bg);
  -webkit-backdrop-filter: blur(calc(var(--tk-frosted-blur) / 2));
          backdrop-filter: blur(calc(var(--tk-frosted-blur) / 2));
  border-top: var(--tk-frosted-border);
  box-shadow: var(--tk-shadow-footer);
  padding: var(--tk-space-9) var(--tk-space-6) var(--tk-space-6);
  margin-top: var(--tk-space-9);
}

.tk-footer__inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--tk-space-7);
  max-width: 1280px;
  margin: 0 auto;
}

@media (max-width: 900px) {
  .tk-footer__inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .tk-footer__inner {
    grid-template-columns: 1fr;
    gap: var(--tk-space-6);
  }
}

/* ── Column 1: Identity Block ─────────────────────────────────── */
.tk-footer__identity .tk-footer__headline {
  font-family: var(--tk-font-wordmark);
  font-size: var(--tk-font-size-xl);
  font-weight: 700;
  color: var(--tk-ink-100);
  margin-bottom: var(--tk-space-3);
  line-height: 1.25;
}

.tk-footer__identity .tk-footer__summary {
  font-size: var(--tk-font-size-sm);
  color: var(--tk-ink-500);
  line-height: 1.65;
  margin-bottom: var(--tk-space-5);
}

.tk-footer__badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--tk-space-2);
}

.tk-footer__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--tk-space-1);
  padding: var(--tk-space-1) var(--tk-space-3);
  border-radius: var(--tk-radius-lg);
  border: 1px solid var(--tk-frosted-border);
  background: rgba(255, 255, 255, 0.04);
  font-family: var(--tk-font-mono-label);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--precision-silver);
  white-space: nowrap;
}

/* ── Column 2: SEO Cluster ────────────────────────────────────── */
.tk-footer__seo {
  display: flex;
  flex-direction: column;
  gap: var(--tk-space-5);
}

.tk-footer__link-group h4 {
  font-family: var(--tk-font-mono-label);
  font-size: 10px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--muted-lavender);
  margin-bottom: var(--tk-space-3);
  font-weight: 600;
}

.tk-footer__link-group ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--tk-space-2);
}

.tk-footer__link-group a {
  font-size: var(--tk-font-size-sm);
  color: var(--tk-ink-500);
  text-decoration: none;
  transition: color var(--tk-duration-fast) var(--tk-ease-out);
}

.tk-footer__link-group a:hover,
.tk-footer__link-group a:focus-visible {
  color: var(--tk-ink-100);
}

.tk-footer__link-group a:focus-visible {
  outline: 2px solid var(--electric-pink);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ── Column 3: Sovereignty Protocol ──────────────────────────── */
.tk-footer__sovereignty {
  background: var(--tk-frosted-bg);
  -webkit-backdrop-filter: blur(var(--tk-frosted-blur));
          backdrop-filter: blur(var(--tk-frosted-blur));
  border: var(--tk-frosted-border);
  border-radius: var(--tk-radius-md);
  padding: var(--tk-space-5);
  display: flex;
  flex-direction: column;
  gap: var(--tk-space-4);
}

.tk-footer__sovereignty h4 {
  font-family: var(--tk-font-mono-label);
  font-size: 10px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--muted-lavender);
  font-weight: 600;
}

.tk-footer__sovereignty p {
  font-size: var(--tk-font-size-sm);
  color: var(--tk-ink-500);
  line-height: 1.65;
  margin: 0;
}

.tk-footer__export-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--tk-space-2);
  font-size: var(--tk-font-size-sm);
  font-weight: 600;
  color: var(--precision-silver);
  text-decoration: none;
  border: none;
  background: none;
  padding: 0;
  cursor: pointer;
  transition: color var(--tk-duration-fast) var(--tk-ease-out);
}

.tk-footer__export-cta:hover,
.tk-footer__export-cta:focus-visible {
  color: var(--tk-ink-100);
}

.tk-footer__export-cta:focus-visible {
  outline: 2px solid var(--electric-pink);
  outline-offset: 2px;
  border-radius: 2px;
}

.tk-footer__export-cta::before {
  content: "↓";
  font-size: 1.1em;
  color: var(--electric-pink);
}

/* ── Footer bottom bar ────────────────────────────────────────── */
.tk-footer__bottom {
  max-width: 1280px;
  margin: var(--tk-space-7) auto 0;
  padding-top: var(--tk-space-5);
  border-top: var(--tk-frosted-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--tk-space-3);
  font-size: var(--tk-font-size-xs);
  color: var(--tk-mute-700);
}

.tk-footer__bottom a {
  color: var(--tk-mute-700);
  text-decoration: none;
  transition: color var(--tk-duration-fast) var(--tk-ease-out);
}

.tk-footer__bottom a:hover {
  color: var(--tk-ink-300);
}

/* ================================================================
   SKIP LINK  (DES-009 / a11y)
   ================================================================ */
.tk-skip-link {
  position: absolute;
  top: -100%;
  left: var(--tk-space-4);
  z-index: calc(var(--tk-z-modal) + 10);
  padding: var(--tk-space-2) var(--tk-space-4);
  background: var(--electric-pink);
  color: #fff;
  font-weight: 700;
  font-size: var(--tk-font-size-sm);
  border-radius: 0 0 var(--tk-radius-sm) var(--tk-radius-sm);
  text-decoration: none;
  transition: top var(--tk-duration-fast);
}

.tk-skip-link:focus {
  top: 0;
}

/* ================================================================
   QUIZ / CONTENT SPACING  (DES-008)
   Ensure quiz UI is never hidden under fixed header or tab bar.
   ================================================================ */
.tk-app-shell {
  min-height: calc(100vh - var(--tk-header-height));
}

@media (max-width: 768px) {
  .tk-app-shell {
    min-height: calc(100vh - var(--tk-header-height-mobile));
  }
}