/* lab-core.css
 *
 * Shared visual theme for your single-file apps.
 * Drop this next to your HTML apps and include with:
 *   <link rel="stylesheet" href="lab-core.css" />
 *
 * Provides:
 *   - CSS variables for colors, radii, and shadows
 *   - Basic HUD card, pill, button, chip, and scroll styling
 *   - A simple responsive layout base
 */

:root {
  --lab-font-scale: 1;

  --lab-bg: #020617;
  --lab-bg-elevated: rgba(15, 23, 42, 0.96);
  --lab-surface: rgba(15, 23, 42, 0.85);
  --lab-border-subtle: rgba(148, 163, 184, 0.35);
  --lab-text-main: #e5e7eb;
  --lab-text-muted: #9ca3af;
  --lab-accent: #38bdf8;
  --lab-accent-soft: rgba(56, 189, 248, 0.14);
  --lab-danger: #fb7185;
  --lab-radius-lg: 16px;
  --lab-radius-xl: 24px;
  --lab-radius-pill: 999px;
  --lab-shadow-soft: 0 18px 40px rgba(15, 23, 42, 0.7);
  --lab-shadow-subtle: 0 10px 30px rgba(15, 23, 42, 0.6);
  --lab-backdrop-blur: blur(18px);
  --lab-transition-fast: 160ms ease-out;
  --lab-transition-med: 220ms ease-out;
  --lab-font-ui: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--lab-font-ui);
  background: radial-gradient(circle at top, #020617 0%, #020617 35%, #020617 100%);
  color: var(--lab-text-main);
  height: 100%;
  overflow: hidden;
}

body.lab-root {
  display: flex;
  flex-direction: column;
  /* Mobile-safe full height: matches lab-shell's JS-pinned viewport vars */
  min-height: var(--svhpx, 100vh);
}

/* Core layout container for HUD-style apps */
.lab-shell {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.1fr);
  gap: 18px;
  padding: 14px 14px 18px;
  box-sizing: border-box;
  height: var(--svhpx, 100vh);
}

@media (max-width: 900px) {
  .lab-shell {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto auto;
    height: auto;
    min-height: var(--svhpx, 100vh);
  }
}

/* Generic HUD card */
.hud-card {
  background: var(--lab-surface);
  border-radius: var(--lab-radius-xl);
  border: 1px solid var(--lab-border-subtle);
  box-shadow: var(--lab-shadow-soft);
  backdrop-filter: var(--lab-backdrop-blur);
  padding: 14px 14px 16px;
  box-sizing: border-box;
  position: relative;
  overflow: hidden;
}

.hud-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.hud-title {
  font-size: calc(13px * var(--lab-font-scale));
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--lab-text-muted);
}

.hud-subtitle {
  font-size: calc(12px * var(--lab-font-scale));
  color: var(--lab-text-muted);
}

/* Pills & chips */
.hud-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: var(--lab-radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.45);
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.12), transparent);
  font-size: calc(11px * var(--lab-font-scale));
  color: var(--lab-text-main);
}

.hud-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  border-radius: var(--lab-radius-pill);
  font-size: calc(11px * var(--lab-font-scale));
  border: 1px solid rgba(148, 163, 184, 0.3);
  background: rgba(15, 23, 42, 0.85);
  color: var(--lab-text-muted);
}

/* Buttons */
.hud-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: var(--lab-radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.45);
  background: radial-gradient(circle at top, rgba(56, 189, 248, 0.16), rgba(15, 23, 42, 0.95));
  color: var(--lab-text-main);
  font-size: calc(11px * var(--lab-font-scale));
  cursor: pointer;
  transition: background var(--lab-transition-fast), border-color var(--lab-transition-fast), transform 120ms ease-out;
}

.hud-btn:hover {
  border-color: var(--lab-accent);
  background: radial-gradient(circle at top, rgba(56, 189, 248, 0.28), rgba(15, 23, 42, 0.98));
  transform: translateY(-1px);
}

.hud-btn:active {
  transform: translateY(0);
}

.hud-btn[disabled] {
  
  cursor: default;
  transform: none;
}

/* Scroll containers */
.hud-scroll-y {
  max-height: 100%;
  overflow-y: auto;
  padding-right: 6px;
  box-sizing: border-box;
}

.hud-scroll-y::-webkit-scrollbar {
  width: 6px;
}

.hud-scroll-y::-webkit-scrollbar-track {
  background: transparent;
}

.hud-scroll-y::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.5);
  border-radius: 999px;
}

/* Small visual labels */
.hud-section-label {
  font-size: calc(11px * var(--lab-font-scale));
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lab-text-muted);
  margin-bottom: 4px;
}

.hud-number {
  font-variant-numeric: tabular-nums;
}

/* Utility: overlay gradient for HUDs */
.hud-overlay-gradient {
  pointer-events: none;
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.12), transparent 55%);
  mix-blend-mode: screen;
  
}

html[data-text="sm"]{ --lab-font-scale: 0.94; }
html[data-text="md"]{ --lab-font-scale: 1; }
html[data-text="lg"]{ --lab-font-scale: 1.08; }
html[data-text="xl"]{ --lab-font-scale: 1.16; }

/* --------------------------------------------------------------------------
 * GLOBAL INTERACTION NORMALIZATION
 * Fixes hard-to-read default link/button blue states + mobile tap highlights.
 * -------------------------------------------------------------------------- */

/* Prevent the shiny blue tap flash on mobile (Android/Chrome, iOS/Safari). */
* {
  -webkit-tap-highlight-color: transparent;
}

/* Make links inherit your theme colors in ALL states (kills default blue/purple). */
a,
a:link,
a:visited,
a:hover,
a:active {
  color: inherit;
  text-decoration-color: currentColor;
}

/* Keep hover/active from changing to UA default; you control styling via classes. */
a:hover {
  text-decoration-color: currentColor;
}

/* Normalize buttons so UA defaults (blue focus glow, borders, backgrounds) don't leak. */
button,
input[type="button"],
input[type="submit"],
input[type="reset"] {
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
}

/* Remove UA outline, then re-add a theme-consistent focus ring via :focus-visible. */
:where(a, button, input, select, textarea):focus {
  outline: none;
}

:where(a, button, input, select, textarea):focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

/* Some browsers add inner focus padding/border on buttons; normalize it. */
button::-moz-focus-inner {
  border: 0;
  padding: 0;
}


/* Airy vertical buffer for Nexus home & About (requested: C) */
.nxsStage, .wrap {
  padding-top: 96px !important;
  padding-bottom: 96px !important;
}


/* Nexus pill label (replaces inline styles) */
.nxs-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 34px;
  padding: 8px 14px;
  border-radius: 999px;

  text-decoration: none;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2px;

  color: rgba(240, 248, 255, 0.92);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(6px);

  transition: transform 120ms ease, background 120ms ease, border-color 120ms ease, box-shadow 120ms ease;
  user-select: none;
  -webkit-user-select: none;
}

.nxs-pill:hover {
  background: rgba(255, 255, 255, 0.10);
  border-color: rgba(255, 255, 255, 0.28);
  transform: translateY(-1px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.35);
}

.nxs-pill:active {
  transform: translateY(0px);
  background: rgba(255, 255, 255, 0.08);
}

.nxs-pill:focus-visible {
  outline: 2px solid rgba(56, 189, 248, 0.85);
  outline-offset: 3px;
}

/* Start Here strip: make options read as real buttons */
.startHere {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

/* Start Here container: prevent the “everything dimmed” feeling by keeping
   the strip visually bounded (no full-page overlays). */
.startHereCard{
  max-width: 1100px;
  margin: 12px auto 18px;
  padding: 14px 14px 10px;
  border-radius: 16px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
  box-shadow: 0 18px 50px rgba(0,0,0,0.45);
  position: relative;
  z-index: 2;
}

/* If Start-Here items are rendered as <button> or <a> in some builds,
   force them to look like our pills (avoid browser-default gray boxes). */
.startHere button,
.startHere a{
  appearance: none;
  border: 0;
  background: none;
  font: inherit;
  color: inherit;
}
.startHere button.nxs-pill,
.startHere a.nxs-pill{
  text-decoration: none;
}

/* Regression safety: if the lab shell overlay ever gets injected on Nexus pages,
   do not allow it to dim the entire home/about experience. */
body.page-nexus #labShellOverlay,
body.page-about #labShellOverlay{
  display: none !important;
}

.startHereCard .centerline{
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.35;
  opacity: .92;
}

.startHereCard .centerline strong{ opacity: .92; }
.startHereCard .centerline span{ opacity: .86; }

.startHere .label {
  font-weight: 700;
  letter-spacing: 0.2px;
  color: rgba(240, 248, 255, 0.88);
  margin-right: 6px;
}

@media (max-width: 520px) {
  .nxs-pill { min-height: 40px; padding: 10px 14px; }
}



/* Editorial vertical breathing room (Mode B) — Nexus Home + About only */
body.page-nexus .nxsStage{
  padding-top: 72px !important;
  padding-bottom: 72px !important;
}
body.page-about .wrap{
  padding-top: 72px !important;
  padding-bottom: 72px !important;
}



/* Phase A note:
   We previously used broad "overlay/scrim/backdrop" kill-switch CSS.
   That breaks legitimate UI layers (maps, canvas HUDs, tooltips, modals) and
   is a primary source of "glitchy" behavior.

   Keep Phase A focused on readability and hit-target reliability ONLY.
*/

/* Readability floor (safe) */
html, body {
  opacity: 1;
  filter: none;
  background-blend-mode: normal;
}



/* === PHASE B: HEADER + PILL ROW COLLISION FIXES === */

/* Define safe header height */
:root {
  --nexus-bar-height: 72px;
  --nexus-safe-gap: 24px;
}

/* Lock Nexus bar to top foreground */
.nexusbar, nav[aria-label="Nexus Bar"] {
  position: sticky !important;
  top: 0 !important;
  z-index: 10000 !important;
  background: rgba(15,23,42,0.96) !important;
  backdrop-filter: none !important;
}

/* Prevent content from hiding under header */
.page-nexus main,
.page-nexus .content,
.page-nexus .container,
.page-nexus .hero,
.page-nexus section:first-of-type {
  margin-top: calc(var(--nexus-bar-height) + var(--nexus-safe-gap)) !important;
}

/* Start pill row offset */
.start-pills,
.pill-row,
.filter-row,
.start-row {
  margin-top: 16px !important;
  position: relative;
  z-index: 1;
}

/* Anchor safety for in-page links */
[id] {
  scroll-margin-top: calc(var(--nexus-bar-height) + 16px);
}

/* Tablet collision guard */
@media (max-width: 1024px) {
  .page-nexus main,
  .page-nexus .content,
  .page-nexus .container,
  .page-nexus .hero,
  .page-nexus section:first-of-type {
    margin-top: calc(var(--nexus-bar-height) + 32px) !important;
  }
}

/* === END PHASE B === */


/* === PHASE C: Z-INDEX & STACKING CONTEXT SANITY === */

/* Normalize z-index layers */
:root {
  --z-background: 0;
  --z-content: 1;
  --z-ui: 10;
  --z-nav: 100;
  --z-modal: 1000;
  --z-debug: 10000;
}

/* Foreground locking */
main, section, article, .content, .container {
  position: relative;
  z-index: var(--z-content);
}

/* Navigation always above content */
nav, .nexusbar, header {
  position: relative;
  z-index: var(--z-nav) !important;
}

/* Debug UI always topmost */
#eruda, .debug-ui, .debug-panel {
  z-index: var(--z-debug) !important;
}

/* Remove backdrop-filter traps */
[class*="blur"],
[class*="glass"],
[class*="frost"],
[class*="backdrop"] {
  backdrop-filter: none !important;
  filter: none !important;
}

/* Prevent future accidental stacking */
[data-stack] {
  position: relative;
  z-index: var(--z-content);
}

/* === END PHASE C === */


/* === PHASE D: ACCESSIBILITY, CONTRAST & PERCEPTION === */

/* Enforce readable contrast */
:root {
  --min-contrast-bg: #0f172a;
  --min-contrast-text: #e5e7eb;
}

body {
  color: var(--min-contrast-text) !important;
  background-color: var(--min-contrast-bg) !important;
}

/* Focus visibility */
*:focus,
*:focus-visible {
  outline: 3px solid #22d3ee !important;
  outline-offset: 2px !important;
}

/* Remove fake-button links */
a:not(.btn):not(.buttonlike) {
  text-decoration: underline;
}

/* Button semantics */
button, .btn, .buttonlike {
  cursor: pointer;
  text-decoration: none !important;
}

/* Ensure tap targets */
a, button {
  min-height: 44px;
  min-width: 44px;
}

/* Kill misleading hover-only affordances */
@media (hover: none) {
  *:hover {
  }
}

/* Screen reader safety */
[aria-hidden="true"] {
  display: none !important;
}

/* Ensure visible labels */
input, select, textarea {
  color: #0f172a !important;
  background: #fff !important;
}

/* Prevent ultra-dense layouts */
section, article, main {
  line-height: 1.6;
}

/* === END PHASE D === */


/* === Recommended Path Tile (compact) === */
/* === More Tile === */


/* === Hybrid Editorial Tile System (C) === */
.inline-tile{
  position: relative;
  background: linear-gradient(180deg, rgba(18,22,35,0.92) 0%, rgba(12,16,28,0.88) 100%);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  padding: 18px 20px;
  margin: 18px 0;
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
  overflow: hidden;
}

/* === Home: Recommended Path + Scope group === */
.inline-tile-group{
  max-width: 1100px;
  margin: 12px auto 18px;
  padding: 0 14px;
  display: grid;
  gap: 12px;
  box-sizing: border-box;
}

.inline-tile-group .inline-tile{
  margin: 0; /* remove the default 18px vertical margin so the group aligns with other tiles */
}

@media (min-width: 820px){
  .inline-tile-group{ grid-template-columns: 1fr 1fr; }
}

.inline-tile::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  height:100%;
  width:4px;
  background: linear-gradient(180deg, rgba(168,85,247,0.85) 0%, rgba(59,130,246,0.55) 100%);
  
}

.inline-tile h3{
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 10px 0;
  
}

.inline-tile p{
  font-size: 15px;
  line-height: 1.55;
  margin: 0;
  
  max-width: 70ch;
}

/* Slightly tighter cards for short statements */
.inline-tile--tight{
  padding: 16px 18px;
}

@media (max-width: 520px){
  .inline-tile{
    padding: 16px 16px;
    border-radius: 14px;
  }
  .inline-tile p{
    font-size: 14px;
  }
}



/* === Inline Tiles Full-Width === */
.inline-tile{
  width: 100% !important;
  box-sizing: border-box;
  grid-column: 1 / -1;
}
.inline-tile p{ max-width: none; }


/* === Thumb De-Dimming === */
.thumb img, .tile-thumb img, .app-thumb img, .nxs-thumb img, .thumbs img{
  filter: none !important;
  opacity: 1 !important;
}
.thumb::after, .tile-thumb::after, .app-thumb::after, .nxs-thumb::after, .thumbs::after,
.thumb::before, .tile-thumb::before, .app-thumb::before, .nxs-thumb::before, .thumbs::before{
  display: none !important;
  content: none !important;
}


/* === Force remove thumb dimming (override) === */
img{ filter: none !important; opacity: 1 !important; }
.tile img, .card img, .thumb img, .tile-thumb img, .app-thumb img, .nxs-thumb img, .thumbs img,
.tile picture img, picture img { filter:none !important; opacity:1 !important; mix-blend-mode: normal !important; }
.tile::before, .tile::after,
.card::before, .card::after,
.thumb::before, .thumb::after,
.tile-thumb::before, .tile-thumb::after,
.app-thumb::before, .app-thumb::after,
.nxs-thumb::before, .nxs-thumb::after,
.thumbs::before, .thumbs::after,
.tile img::before, .tile img::after { display:none !important; content:none !important; }


/* === Full-width for Start Here + key tiles === */
.start-here, .startHere, .nxs-start, #start-here, .start-here-tile,
.recommended-path, .scope-tile, .inline-tile, .inline-tile--tight {
  width: 100% !important;
  max-width: none !important;
}
/* If they sit inside a grid, make them span the grid */
.start-here, .startHere, .nxs-start, #start-here, .start-here-tile,
.recommended-path, .scope-tile, .inline-tile, .inline-tile--tight {
  grid-column: 1 / -1 !important;
}