:root {
  --bg: #121214;
  --fg: #e7e7ea;
  --muted: #9aa0a6;
  --accent: #4f8cff;
  /* Updated to flat 40% opacity as requested */
  --card: rgba(10, 12, 16, 0.25);
  --card_tranfer: rgba(10, 12, 16, 0.3);
  --border: #22242b;

  /* Animation Variables */
  --anim-duration-fast: 0.18s;
  --anim-duration-normal: 0.38s;
  --anim-duration-slow: 0.55s;
  --anim-easing: ease;
  --anim-easing-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --anim-easing-out: cubic-bezier(0.0, 0, 0.2, 1);
  --anim-easing-in: cubic-bezier(0.4, 0, 1, 1);
  --view-blur: 0px; /* Removed blur */
  --view-scale: 0.97;
  --view-panel-scale: 0.99;
}

* {
  box-sizing: border-box;
}

/* reset */

html,
body {
  height: 100%;
  margin: 0;
}

body {
  font: 14px/1.5 system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

/* Overlay sits above wallpaper - Updated to flat 40% transparency */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--wallpaper-overlay, rgba(0, 0, 0, 0.4));
  z-index: -1;
  backdrop-filter: blur(var(--wallpaper-blur, 7px));
  -webkit-backdrop-filter: blur(var(--wallpaper-blur, 7px));
}

/* Sticky header so the title is always visible */
header {
  padding: 0 20px;
  border-bottom: 1px solid var(--border);
  background: #0e0f13c3;
  border-radius: 0 0 5px 5px;
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  height: 60px;
}

.main-nav {
  display: flex;
  gap: 20px;
  height: 100%;
  position: relative;
  align-items: center;
}

.nav-item {
  background: none;
  border: none;
  border-radius: 0;
  color: var(--muted);
  font-weight: 500;
  font-size: 15px;
  padding: 0 4px;
  height: 100%;
  position: relative;
  cursor: pointer;
  transition: color 0.2s;
}

.nav-item:hover {
  color: var(--fg);
  background: none;
}

.nav-item.active {
  color: var(--accent);
}

.nav-indicator {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  width: 0;
  background: var(--accent);
  border-radius: 999px;
  transition:
    transform var(--anim-duration-fast) var(--anim-easing-in-out),
    width var(--anim-duration-fast) var(--anim-easing-in-out),
    opacity var(--anim-duration-fast) var(--anim-easing);
  opacity: 0.9;
}

/* Views */
.view-section {
  position: relative;
  display: block;
  --stack-gap: 16px;
  --stack-gap-collapsed: 0px;
  opacity: 1;
  transform: translateY(0) scale(1);
  /* filter: blur(0); Removed transition blur */
  transition:
    transform var(--anim-duration-normal) var(--anim-easing-in-out),
    opacity var(--anim-duration-normal) var(--anim-easing-in-out);
}

.view-section.hidden {
  display: none;
}

/* Entering state: starts invisible, positioned for smooth entry */
.view-section.is-entering {
  opacity: 0;
  transform: scale(0.98);
  /* filter: blur(var(--view-blur)); Removed */
}

/* Leaving state: fades out */
.view-section.is-leaving {
  opacity: 0;
  transform: scale(0.98);
  /* filter: blur(var(--view-blur)); Removed */
  pointer-events: none;
}

/* View stack: the container that holds panels, gaps collapse during transition */
.view-stack {
  display: flex;
  flex-direction: column;
  gap: var(--stack-gap);
  transition:
    gap var(--anim-duration-normal) var(--anim-easing-in-out);
}

.view-section.is-leaving .view-stack,
.view-section.is-entering .view-stack {
  gap: var(--stack-gap-collapsed);
}

/* Panel transition: panels visually merge during view switch */
.panel {
  transition:
    margin var(--anim-duration-normal) var(--anim-easing-in-out),
    transform var(--anim-duration-normal) var(--anim-easing-in-out),
    border-radius var(--anim-duration-normal) var(--anim-easing-in-out),
    opacity var(--anim-duration-normal) var(--anim-easing-in-out),
    background var(--anim-duration-normal) var(--anim-easing-in-out),
    border-color var(--anim-duration-normal) var(--anim-easing-in-out),
    box-shadow var(--anim-duration-normal) var(--anim-easing-in-out);
}

.view-section.is-leaving .panel,
.view-section.is-entering .panel {
  margin-bottom: 0 !important;
  border-radius: 0;
}

/* First and last panels keep rounded corners on their outer edges */
.view-section.is-leaving .view-stack > .panel:first-child,
.view-section.is-entering .view-stack > .panel:first-child {
  border-top-left-radius: 12px;
  border-top-right-radius: 12px;
}

.view-section.is-leaving .view-stack > .panel:last-child,
.view-section.is-entering .view-stack > .panel:last-child {
  border-bottom-left-radius: 12px;
  border-bottom-right-radius: 12px;
}

/* Panel content fades during transition - Removed blur */
.view-section .panel > * {
  transition:
    opacity var(--anim-duration-fast) var(--anim-easing-in-out),
    transform var(--anim-duration-fast) var(--anim-easing-in-out);
}

.view-section.is-leaving .panel > * {
  opacity: 0;
  /* filter: blur(6px); Removed */
  transform: scale(0.99);
}

.view-section.is-entering .panel > * {
  opacity: 0;
  /* filter: blur(6px); Removed */
  transform: scale(0.99);
}

/* Monitor Test Grid */
.test-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.test-card {
  aspect-ratio: 1;
  border-radius: 8px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 14px;
  color: #fff;
  text-shadow: 0 1px 3px rgba(0,0,0,0.5);
  transition: transform 0.2s, box-shadow 0.2s;
  background-color: var(--bg-color, #333);
  background-size: cover;
  position: relative;
  cursor: pointer;
}

.test-card.light {
  color: #000;
  text-shadow: none;
}

.test-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.test-card::after {
  content: attr(title);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  background: rgba(0, 0, 0, 0.92);
  color: #fff;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 400;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 100;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  max-width: 300px;
  white-space: normal;
  text-align: center;
  line-height: 1.4;
}

.test-card:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(-12px);
}

/* Hide tooltip for solid color tests (they don't have title attribute) */
.test-card[data-test="solid"]::after {
  display: none;
}

/* Test Mode Views (discrete divs) */
.test-mode-view {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  background: #000;
  display: none;
  opacity: 0;
  transition: opacity var(--anim-duration-normal) var(--anim-easing);
  visibility: hidden;
}

.test-mode-view[data-active="true"] {
  display: block;
  opacity: 1;
  visibility: visible;
}

.test-content {
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.test-exit-hint {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.7);
  color: #fff;
  padding: 10px 20px;
  border-radius: 20px;
  font-size: 13px;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--anim-duration-normal) var(--anim-easing);
  backdrop-filter: blur(5px);
}

.test-mode-view[data-active="true"] .test-exit-hint {
  animation: hintFadeInOut 4s var(--anim-easing) forwards;
}

/* Custom Color & Gradient Controls */
.custom-color-section,
.custom-gradient-section {
  margin: 16px 0 24px;
  padding: 16px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.custom-color-controls {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.custom-color-controls input[type="color"] {
  width: 60px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  background: transparent;
}

.custom-color-controls input[type="text"] {
  flex: 1;
  min-width: 120px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #0e1014;
  color: var(--fg);
  font-family: monospace;
  font-size: 14px;
}

.gradient-controls {
  display: flex;
  gap: 16px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.gradient-stop,
.gradient-direction {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.gradient-stop label,
.gradient-direction label {
  font-size: 12px;
  color: var(--muted);
}

.gradient-stop input[type="color"] {
  width: 80px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  background: transparent;
}

.gradient-direction select {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #0e1014;
  color: var(--fg);
  cursor: pointer;
  min-width: 150px;
}

.btn-primary {
  padding: 12px 24px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(79, 140, 255, 0.3);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-primary:hover {
  background: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(79, 140, 255, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(79, 140, 255, 0.3);
}

.panel h3 {
  margin: 24px 0 12px;
  font-size: 13px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.panel h3:first-of-type {
  margin-top: 16px;
}

/* Specific styling for Monitor Test custom buttons */
.custom-color-controls .btn-primary,
.custom-gradient-section .btn-primary {
  background: #10B981; /* fixed action button color */
  color: #ffffff;      /* readable on dark backgrounds */
  border: 1px solid rgba(255,255,255,0.06);
  min-width: 160px;
  padding: 10px 24px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(16,185,129,0.12);
  text-transform: none;
  font-weight: 600;
  font-size: 13px;
}

.custom-color-controls .btn-primary:hover,
.custom-gradient-section .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(16,185,129,0.35);
  background: #0ea472;
}

.custom-color-controls .btn-primary:active,
.custom-gradient-section .btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(16,185,129,0.15);
}

.custom-color-controls .btn-primary:focus-visible,
.custom-gradient-section .btn-primary:focus-visible {
  outline: 2px solid rgba(16,185,129,0.3);
  outline-offset: 2px;
}

/* Center the page content */
main {
  max-width: 860px;
  margin: 0 auto;
  padding: 16px 0;
  position: relative;
}

/* Unified blurred frame during view switches */
.view-transition-shell {
  position: absolute;
  top: 16px;
  left: 0;
  right: 0;
  width: auto;
  height: 0;
  padding: 0;
  margin: 0;
  display: none;
  opacity: 0;
  pointer-events: none;
  z-index: -1;
  background: var(--card_tranfer);
  /* border: 1px solid var(--border); */
  border-radius: 12px;
  -webkit-backdrop-filter: blur(30px);
  backdrop-filter: blur(30px);
  transition:
    opacity var(--anim-duration-normal) var(--anim-easing-in-out),
    height var(--anim-duration-normal) var(--anim-easing-in-out),
    top var(--anim-duration-normal) var(--anim-easing-in-out);
}

.view-transition-shell.is-active {
  opacity: 1;
}

/* Ensure view content sits above the shell */
.view-section {
  position: relative;
}

/* While transitioning, visually merge multiple panels into one big shell */
body.view-transitioning .view-section .panel {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

/* Transition shell should NOT inherit .panel styles - it's purely for visual continuity */
.view-transition-shell {
  width: auto;
  margin-bottom: 0;
}

/* Card container for our controls */
.panel {
  width: 100%;
  padding: 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 0;
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
  box-sizing: border-box;
}

.panel h2 {
  margin: 0 0 12px;
  font-size: 14px;
  opacity: .95;
}

.field {
  margin: 10px 0 14px;
}

.field label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
}

.field input[type="text"] {
  width: 100%;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0e1014;
  color: var(--fg);
}

/* Flex row */
.row {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
}

button {
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #111420;
  color: var(--fg);
  cursor: pointer;
}

.ghost {
  background: transparent;
  border-color: var(--border);
}

.ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.chip {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #131621;
  color: var(--fg);
}

.chip.active {
  border-color: var(--accent);
  color: #fff;
  background: #1f2b46;
}

.hint {
  color: var(--muted);
  font-size: 12px;
  margin-top: 8px;
}

.rgb-row {
  display: flex;
  align-items: center;
  gap: 16px;
  justify-content: flex-start;
}

/* Live preview of the currently selected color */
.swatch {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background-color: var(--accent);
}

.swatch-r {
  width: 35px;
  height: 35px;
  border-radius: 5px;
  border: 1px solid var(--border);
  background-color: var(--accent);
}

.swatch-g {
  width: 35px;
  height: 35px;
  border-radius: 5px;
  border: 1px solid var(--border);
  background-color: var(--accent);
}

.swatch-b {
  width: 35px;
  height: 35px;
  border-radius: 5px;
  border: 1px solid var(--border);
  background-color: var(--accent);
}

/* ============================================
   ANIMATIONS & KEYFRAMES
   ============================================ */

/* Page View Transitions */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Test Hints */
@keyframes hintFadeInOut {
  0% { opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { opacity: 0; }
}


.rgb-label {
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
}

/* Simple readout background */
.code {
  padding: 6px 8px;
  background: #0e1014;
  border: 1px solid var(--border);
  border-radius: 8px;
}

/* HSV color wheel styles */
.wheel-section {
  margin-top: 16px;
}

.wheel-wrap {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

canvas#hsv-wheel {
  width: 240px;
  height: 240px;
  image-rendering: pixelated;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: #0f1014;
}

canvas#hsl-wheel {
  width: 240px;
  height: 240px;
  image-rendering: pixelated;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: #0f1014;
}

.controls {
  display: grid;
  gap: 10px;
  min-width: 240px;
}

.controls .row {
  align-items: center;
}

.controls label {
  color: var(--muted);
  font-size: 12px;
}

input[type="range"] {
  width: 200px;
}

.readouts {
  display: grid;
  gap: 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.blank-box {
  width: 150px;
}

.rgb-section {
  display: flex;
  gap: 3em;
  margin-left: auto;
  margin-right: 10em;
  align-items: center;
}

.rgb-item {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.8em;
}

#native-color {
  border: none;
  padding: 0;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
}

#rgb-text {
  margin-left: 2em;
  padding: 6px 8px;
  box-sizing: border-box;
}

body.display-locked {
  overflow: hidden;
}

.display-overlay {
  position: fixed;
  inset: 0;
  background: #000;
  color: #f3f5f7;
  display: none;
  z-index: 9999;
  overflow: hidden;
}

.display-overlay.active {
  display: block;
}

.display-view {
  position: absolute;
  inset: 0;
  display: none;
}

.display-view.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

#display-solid-view {
  background: var(--accent);
  transition: background-color 0.3s ease;
}

#display-blacklevel-view {
  background: #000;
  padding: 24px;
  box-sizing: border-box;
}

.display-ui {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(8, 10, 14, 0.72);
  border: 1px solid #1f2230;
  box-shadow: 0 16px 60px rgba(0, 0, 0, 0.55);
  border-radius: 12px;
  padding: 12px 14px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  min-width: min(920px, 92vw);
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.display-overlay[data-idle="true"] .display-ui {
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(-4px);
}

.display-ui-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.display-ui-left,
.display-ui-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.display-hint {
  color: #c0c4cf;
  font-size: 12px;
  line-height: 1.4;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: #1b1f2d;
  border: 1px solid #2c3040;
  border-radius: 999px;
  font-size: 12px;
  color: #e7e7ea;
}

.blacklevel-wrap {
  width: min(1100px, 92vw);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.gradient-strip {
  height: 140px;
  border-radius: 12px;
  border: 1px solid #1f1f1f;
  background: linear-gradient(90deg, #ffffff 0%, #000000 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
}

.bar-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(52px, 1fr));
  gap: 8px;
  width: 100%;
}

.bar-row.near-black {
  grid-template-columns: repeat(auto-fit, minmax(46px, 1fr));
}

.level-bar {
  border-radius: 8px;
  border: 1px solid #2b2b2b;
  height: 64px;
  position: relative;
}

.bar-row.near-black .level-bar {
  height: 52px;
}

.level-bar::after {
  content: attr(data-label);
  position: absolute;
  right: 6px;
  bottom: 6px;
  padding: 2px 6px;
  font-size: 11px;
  background: rgba(0, 0, 0, 0.5);
  border-radius: 999px;
  color: #f7f9fb;
  letter-spacing: 0.02em;
}