/* CineAHO Premium Monitor Dead Pixel Tester Pro Stylesheet */

/* Core Variables & Tokens */
:root {
  --hue-purple: 270;
  --hue-blue: 210;
  --hue-green: 145;
  --hue-gold: 45;
  --hue-red: 350;
  --hue-cyan: 190;

  /* Theme Core - Dark Glassmorphism */
  --bg-color: #040712;
  --bg-grid: rgba(255, 255, 255, 0.015);
  
  --panel-bg: rgba(10, 16, 32, 0.6);
  --panel-border: rgba(255, 255, 255, 0.05);
  --panel-hover-border: rgba(59, 130, 246, 0.25);
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dark: #475569;
  
  /* Gradation Accents */
  --grad-purple: linear-gradient(135deg, #a855f7 0%, #7e22ce 100%);
  --grad-blue: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  --grad-cyan: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
  --grad-green: linear-gradient(135deg, #10b981 0%, #047857 100%);
  --grad-gold: linear-gradient(135deg, #fbbf24 0%, #d97706 100%);
  --grad-red: linear-gradient(135deg, #f43f5e 0%, #be123c 100%);

  --neon-glow: 0 0 30px rgba(59, 130, 246, 0.2);
  --font-main: 'Noto Sans KR', 'Inter', sans-serif;
  --font-display: 'Outfit', sans-serif;
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-card: 0 12px 40px 0 rgba(0, 0, 0, 0.6);
  
  --highlight-color: #3b82f6;
  --accent-purple: #a855f7;
}

/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-color);
  color: var(--text-main);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  line-height: 1.6;
}

/* Grid Background */
body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(var(--bg-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px);
  background-size: 40px 40px;
  z-index: -2;
  pointer-events: none;
}

/* Ambient Glow Orbs */
.bg-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(150px);
  z-index: -3;
  pointer-events: none;
  opacity: 0.18;
}

.bg-glow-purple {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #7e22ce 0%, transparent 70%);
  top: -100px;
  left: 5%;
}

.bg-glow-blue {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #1d4ed8 0%, transparent 70%);
  top: 35%;
  right: 5%;
}

/* Header */
.main-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
  margin: 1rem 1.5rem 0 1.5rem;
  border-radius: 50px;
  transition: var(--transition-smooth);
}

.glass-header {
  background: rgba(10, 16, 32, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.logo-circle {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 10px rgba(59, 130, 246, 0.3);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-text {
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 0.95rem;
}

.logo-text span {
  color: var(--text-muted);
  font-weight: 400;
}

.header-nav {
  flex-grow: 1;
  margin: 0 2rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.header-nav::-webkit-scrollbar {
  display: none;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 1.25rem;
  white-space: nowrap;
}

.nav-list a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition-smooth);
  padding: 0.5rem 0.25rem;
  position: relative;
}

.nav-list a:hover,
.nav-list a.active {
  color: var(--text-main);
}

.nav-list a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: #3b82f6;
  border-radius: 2px;
}

.btn-back-dashboard {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 30px;
  padding: 0.5rem 1.2rem;
  color: var(--text-main);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-back-dashboard:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #3b82f6;
  transform: translateX(-2px);
}

/* Common Glass Panels */
.glass-panel {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 20px;
  box-shadow: var(--shadow-card);
  transition: var(--transition-smooth);
}

.glass-panel:hover {
  border-color: var(--panel-hover-border);
}

/* Monitor Layout Container */
.monitor-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 1.5rem 5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.monitor-header-section {
  text-align: center;
}

.main-title {
  font-size: 2.1rem;
  font-weight: 800;
  margin-bottom: 0.6rem;
  letter-spacing: -0.5px;
}

.main-title span {
  background: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.main-title i {
  color: #3b82f6;
  margin-right: 0.5rem;
}

.subtitle-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 850px;
  margin: 0 auto 1.25rem auto;
  line-height: 1.6;
}

.tag-badges {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.badge {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 0.25rem 0.75rem;
  border-radius: 30px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
}

.badge-tag {
  background: rgba(59, 130, 246, 0.05);
  border-color: rgba(59, 130, 246, 0.12);
  color: #60a5fa;
}

/* Monitor Workspace Grid */
.monitor-workspace {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 1.5rem;
  align-items: start;
}

.workspace-left {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.control-card {
  padding: 1.5rem;
  min-height: 500px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.control-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 0.5rem;
}

.control-header-bar h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
}

.control-header-bar i {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Tabs */
.control-nav-tabs {
  display: flex;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 0.25rem;
  border-radius: 10px;
  gap: 0.25rem;
}

.btn-control-tab {
  flex: 1;
  background: transparent;
  border: none;
  border-radius: 7px;
  padding: 0.55rem 0.5rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  white-space: nowrap;
  transition: var(--transition-smooth);
}

.btn-control-tab:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.02);
}

.btn-control-tab.active {
  background: rgba(59, 130, 246, 0.12) !important;
  border: 1px solid rgba(59, 130, 246, 0.25) !important;
  color: #60a5fa !important;
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.15);
}

/* Active Status Card */
.active-status-card {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 0.85rem;
  display: flex;
  gap: 0.85rem;
  align-items: center;
}

.status-color-preview {
  width: 50px;
  height: 50px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  flex-shrink: 0;
  transition: background-color 0.2s ease;
}

.status-details {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.status-details strong {
  font-size: 0.85rem;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.status-details span {
  font-size: 0.72rem;
  color: #60a5fa;
  font-weight: 700;
  margin-top: 0.1rem;
}

.status-details p {
  font-size: 0.7rem;
  color: var(--text-muted);
  line-height: 1.3;
  margin-top: 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Tab Options Content Layout */
.tab-options-area {
  flex-grow: 1;
  min-height: 280px;
}

.option-tab-content {
  display: none;
  flex-direction: column;
  gap: 1.1rem;
  animation: fadeIn 0.3s ease-out;
}

.option-tab-content.active-content {
  display: flex;
}

.nav-control-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.option-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.option-group label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Color & Patterns Grids */
.color-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.4rem;
}

.color-btn {
  aspect-ratio: 1;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  cursor: pointer;
  box-shadow: 0 2px 5px rgba(0,0,0,0.4);
  position: relative;
  transition: var(--transition-smooth);
}

.color-btn:hover {
  transform: scale(1.12);
  border-color: #fff;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

.color-btn.active {
  border-color: #3b82f6;
  box-shadow: 0 0 12px #3b82f6;
  transform: scale(1.08);
}

.color-btn.active::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 0.8rem;
  font-weight: bold;
  color: inherit;
  filter: invert(1) grayscale(1) contrast(100);
}

/* Gradients Selection Grid */
.gradient-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.4rem;
}

.gradient-btn {
  height: 32px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.15);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.gradient-btn:hover {
  transform: scale(1.08);
  border-color: #fff;
}

.gradient-btn.active {
  border-color: #3b82f6;
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

/* Custom color row */
.custom-color-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

#custom-color-picker {
  flex-grow: 1;
  height: 36px;
  border: none;
  background: transparent;
  border-radius: 6px;
  cursor: pointer;
}

/* Patterns selection Grid */
.pattern-list-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
}

.pattern-btn {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 0.65rem 0.5rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  transition: var(--transition-smooth);
}

.pattern-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  border-color: var(--panel-hover-border);
}

.pattern-btn.active {
  background: rgba(59, 130, 246, 0.1) !important;
  border-color: #3b82f6 !important;
  color: #60a5fa !important;
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.2);
}

.pattern-preview-icon {
  width: 28px;
  height: 18px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 3px;
  pointer-events: none;
}

/* Helper text */
.settings-helper-text {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin-bottom: 0.25rem;
}

.dropdown-select {
  appearance: none;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.45rem 1rem;
  border-radius: 6px;
  color: #fff;
  font-size: 0.78rem;
  font-family: var(--font-main);
  outline: none;
  cursor: pointer;
  width: 100%;
}

.dropdown-select:focus {
  border-color: #3b82f6;
}

/* Buttons styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-primary {
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  color: #fff;
  box-shadow: 0 4px 10px rgba(59, 130, 246, 0.25);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 15px rgba(59, 130, 246, 0.35);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: #3b82f6;
  color: #fff;
}

.btn-danger {
  background: linear-gradient(135deg, #f43f5e 0%, #be123c 100%);
  color: #fff;
  box-shadow: 0 4px 10px rgba(244, 63, 94, 0.25);
}

.btn-danger:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 15px rgba(244, 63, 94, 0.35);
}

.btn-success {
  background: linear-gradient(135deg, #10b981 0%, #047857 100%);
  color: #fff;
  box-shadow: 0 4px 10px rgba(16, 185, 129, 0.25);
}

.btn-success:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 15px rgba(16, 185, 129, 0.35);
}

.btn-large {
  width: 100%;
  padding: 0.65rem 1rem;
  font-size: 0.85rem;
}

/* Footer Actions Control panel */
.control-footer-actions {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.action-grid-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
}

/* Right Visual Canvas Board */
.canvas-board {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.canvas-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 0.85rem;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.specs-indicator {
  display: flex;
  gap: 0.85rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
}

.specs-indicator span {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  background: rgba(255,255,255,0.03);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.05);
}

/* Inch calculator custom slide */
.inch-calculator-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
}

.inch-calculator-row input[type="number"] {
  width: 50px;
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 4px;
  color: #fff;
  padding: 0.15rem;
  text-align: center;
  outline: none;
}

.inch-calculator-row input[type="range"] {
  width: 80px;
  accent-color: #3b82f6;
  cursor: pointer;
}

/* Report Action Downloads Buttons */
.report-actions-row {
  display: flex;
  gap: 0.3rem;
}

.report-actions-row button {
  padding: 0.4rem 0.75rem;
  font-size: 0.75rem;
}

/* Main Display Canvas viewport screen */
.test-screen-wrapper {
  background: #000;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  aspect-ratio: 16 / 9;
  position: relative;
  overflow: hidden;
  cursor: crosshair;
  box-shadow: inset 0 0 20px rgba(0,0,0,0.8);
}

#test-screen-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* Fullscreen overlays instructions */
.fullscreen-overlay-instruction {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 0.85rem 1.8rem;
  border-radius: 8px;
  text-align: center;
  z-index: 9999;
  pointer-events: none;
  animation: fadeOutInstruction 4s forwards;
  box-shadow: 0 10px 30px rgba(0,0,0,0.7);
}

.fullscreen-overlay-instruction p {
  color: #fff;
  font-size: 0.88rem;
  font-weight: bold;
  margin-bottom: 0.2rem;
  letter-spacing: 0.5px;
}

.fullscreen-overlay-instruction span {
  color: #a855f7;
  font-size: 0.72rem;
  font-weight: 600;
}

@keyframes fadeOutInstruction {
  0% { opacity: 1; }
  75% { opacity: 1; }
  100% { opacity: 0; display: none; }
}

/* Canvas Footer Bar Indicators */
.canvas-footer-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.35rem 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
}

.bad-count-badge {
  background: rgba(244, 63, 94, 0.15);
  border: 1px solid rgba(244, 63, 94, 0.3);
  color: #f43f5e;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-weight: bold;
}

.shortcuts-instructions {
  color: var(--text-dark);
}

/* Fullscreen Mode Overrides */
.test-screen-wrapper:fullscreen {
  border: none !important;
  border-radius: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  cursor: none; /* Hide cursor in fullscreen when resting, or use JS to show on movement */
}

.test-screen-wrapper:-webkit-full-screen {
  border: none !important;
  border-radius: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
}

/* Guide & Description board styling bottom */
.explanation-board-section {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  width: 100%;
  margin-top: 2rem;
}

.explanation-board-section .board-header {
  border-bottom: 2px solid #3b82f6;
  padding-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.explanation-board-section .board-header i {
  font-size: 1.25rem;
  color: #3b82f6;
}

.explanation-board-section .board-header h2 {
  font-size: 1.1rem;
  font-weight: 700;
}

.explanation-board-section .board-header span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Quick guides cards row */
.guide-quick-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.guide-card {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.35rem;
}

.guide-card i {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.guide-card strong {
  font-size: 0.88rem;
  color: #fff;
}

.guide-card span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Explanation layout split */
.explanation-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 1.5rem;
  align-items: start;
}

.explanation-index-list {
  background: rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: 16px;
  overflow: hidden;
}

.explanation-index-list ul {
  list-style: none;
  display: flex;
  flex-direction: column;
}

.explanation-index-list li {
  padding: 0.7rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: var(--transition-smooth);
}

.explanation-index-list li:last-child {
  border-bottom: none;
}

.explanation-index-list li:hover {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-main);
  padding-left: 1.25rem;
}

.explanation-index-list li.active {
  background: rgba(59, 130, 246, 0.1);
  color: #fff;
  border-left: 4px solid #3b82f6;
  padding-left: 1.25rem;
}

.index-num {
  font-family: var(--font-display);
  font-size: 0.72rem;
  color: rgba(255,255,255,0.08);
  font-weight: 700;
}

.explanation-index-list li.active .index-num {
  color: #3b82f6;
}

.explanation-display-box {
  min-height: 380px;
  padding: 2.2rem;
  display: flex;
  flex-direction: column;
  border-left: 4px solid #93c5fd;
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.45) 0%, rgba(15, 23, 42, 0.6) 100%);
}

.display-content-inner {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  opacity: 1;
  transition: opacity 0.3s ease-in-out;
}

.display-top-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(59, 130, 246, 0.12);
  padding: 0.25rem 0.8rem;
  border-radius: 30px;
  width: fit-content;
}

.display-top-badge i {
  font-size: 0.8rem;
  color: #60a5fa;
}

.display-top-badge span {
  font-size: 0.72rem;
  font-weight: 700;
  color: #93c5fd;
}

.explanation-display-box h3 {
  font-size: 1.45rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
}

.display-text-body {
  font-size: 0.92rem;
  color: #e2e8f0;
  line-height: 1.7;
}

.display-text-body p {
  margin-bottom: 1rem;
}

.display-text-body ul, .display-text-body ol {
  margin-left: 1.25rem;
  margin-bottom: 1rem;
}

.display-text-body li {
  margin-bottom: 0.45rem;
}

.display-text-body strong {
  color: #60a5fa;
}

.fade-out {
  opacity: 0;
}

/* Floating Navigator */
.floating-navigator {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 100;
}

.floating-buttons-col {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.btn-float {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(10, 16, 32, 0.8);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5);
  backdrop-filter: blur(10px);
  transition: var(--transition-smooth);
}

.btn-float:hover {
  background: #3b82f6;
  border-color: #3b82f6;
  color: #fff;
  transform: translateY(-2px);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Responsive Queries */
@media (max-width: 992px) {
  .monitor-workspace {
    grid-template-columns: 1fr;
  }
  
  .workspace-right {
    grid-row: 1; /* Previews on top on smaller screens */
  }

  .explanation-layout {
    grid-template-columns: 1fr;
  }

  .explanation-index-list ul {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .explanation-index-list li {
    flex: 1 1 180px;
  }
  
  .guide-quick-cards {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .main-header {
    margin: 0.5rem;
    padding: 0.5rem 1.1rem;
  }
  
  .logo-text {
    display: none;
  }
  
  .main-title {
    font-size: 1.6rem;
  }
  
  .specs-indicator {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .canvas-header-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .inch-calculator-row {
    justify-content: space-between;
  }
}