index.css

:root {
  /* Core Palette - Futuristic Dark Theme ("Aurora") */
  --bg-color: #050608; /* Rich, near-black for depth */
  --bg-color-rgb: 5, 6, 8;
  --card-bg-base-rgb: 15, 17, 32; /* Deep blue/purple base for cards */

  /* Unified Glassmorphism Card Style */
  --card-bg-color: rgba(var(--card-bg-base-rgb), 0.3);
  --card-bg-hover-color: rgba(var(--card-bg-base-rgb), 0.4);
  --card-blur-effect: blur(20px); /* Strong blur for a glassy effect */

  /* Borders & Outlines - Glow-based */
  --border-color: rgba(100, 110, 220, 0.15); /* Subtle, cool border */
  --border-color-rgb: 100, 110, 220;
  --border-hover-color: rgba(120, 130, 240, 0.35); /* Brighter on hover */
  --glow-color: rgba(160, 170, 255, 0.5); /* For subtle glows */
  --glow-color-rgb: 160, 170, 255;

  /* Typography */
  --text-color: #EAEBF5; /* Off-white for readability */
  --text-secondary-color: #A0A8C8; /* For subtitles and secondary info */
  --text-tertiary-color: #707A95; /* For less important details */

  /* Accents - Vibrant & Purposeful */
  --accent-pink: #FF4081;
  --accent-pink-rgb: 255, 64, 129;
  --accent-green: #00E676;
  --accent-green-rgb: 0, 230, 118;
  --accent-yellow: #FFC400;
  --accent-yellow-rgb: 255, 196, 0;
  --accent-purple: #AE52F5;
  --accent-purple-rgb: 174, 82, 245;
  --accent-purple-dark: #8E3FD5;
  --accent-blue: #2979FF;
  --accent-blue-rgb: 41, 121, 255;

  /* Semantic States & Focus */
  --focus-ring-color: rgba(var(--accent-blue-rgb), 0.5);
  --success-glow: rgba(var(--accent-green-rgb), 0.35);
  --error-glow: rgba(var(--accent-pink-rgb), 0.35);
  --info-glow: rgba(var(--accent-blue-rgb), 0.3);
  --purple-glow: rgba(var(--accent-purple-rgb), 0.3);


  /* Typography & Sizing */
  --font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  --font-family-monospace: 'SF Mono', 'Menlo', 'Monaco', 'Consolas', 'Liberation Mono', 'Courier New', monospace;
  --font-size-base: 1rem;
  --font-size-sm: 0.875rem;
  --font-size-xs: 0.75rem;
  --line-height-base: 1.7;
  --line-height-heading: 1.3;

  /* Transitions & Animations */
  --transition-speed: 0.3s;
  --transition-speed-fast: 0.2s;
  --transition-speed-slow: 0.5s;
  --easing-curve: cubic-bezier(0.25, 0.8, 0.25, 1);
  --easing-curve-subtle: cubic-bezier(0.35, 0.7, 0.4, 0.9);

  /* Borders & Shadows - Soft and Layered */
  --border-radius-sm: 6px;
  --border-radius-md: 12px;
  --border-radius-lg: 18px;
  --shadow-sm: 0 3px 6px rgba(var(--bg-color-rgb), 0.12);
  --shadow-md: 0 6px 12px rgba(var(--bg-color-rgb), 0.15);
  --shadow-lg: 0 10px 20px rgba(var(--bg-color-rgb), 0.18), 0 3px 6px rgba(var(--bg-color-rgb), 0.1);
  --shadow-xl: 0 20px 40px rgba(var(--bg-color-rgb), 0.22), 0 5px 15px rgba(var(--bg-color-rgb), 0.12);
  --shadow-inset: inset 0 1px 3px rgba(0,0,0,0.1);
  --shadow-inset-strong: inset 0 2px 5px rgba(0,0,0,0.15);

  /* Sub-panel specific aesthetics for internal elements */
  --sub-panel-bg-color: rgba(var(--card-bg-base-rgb), 0.25);
  --sub-panel-border-color: rgba(var(--border-color-rgb), 0.4);
  --sub-panel-text-color: var(--text-secondary-color);
  --sub-panel-strong-text-color: var(--text-color);
}

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

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

::selection {
  background-color: var(--accent-purple); 
  color: white;
}

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base); 
}

html, body {
    height: 100%;
    overflow: hidden; 
}

body {
    background-color: transparent; 
    color: var(--text-color);
    font-family: var(--font-family);
    line-height: var(--line-height-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    display: flex;
    flex-direction: column;
    overflow-x: hidden; 
}

#root {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  width: 100%;
  position: relative; 
  z-index: 1; 
}

#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color); 
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity var(--transition-speed-slow) var(--easing-curve), visibility 0s var(--transition-speed-slow) linear; 
    visibility: visible;
    opacity: 1;
}
#preloader.hidden {
  opacity: 0;
  visibility: hidden;
}

.spinner {
    width: 50px; 
    height: 50px;
    border: 4px solid var(--border-color); 
    border-top-color: var(--accent-purple);
    border-radius: 50%;
    animation: spin 0.8s linear infinite; 
}

@keyframes spin { to { transform: rotate(360deg); } }

.background-container {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -1; 
    overflow: hidden;
    background-color: var(--bg-color); 
}
.background-gradient {
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 150%; height: 60vh;
  background: radial-gradient(
      ellipse at center top,
      rgba(63, 213, 224, 0.22) 0%,
      rgba(var(--bg-color-rgb), 0) 65%
  );
  pointer-events: none;
}
.background-noise {
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: transparent url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 200"><filter id="n"><feTurbulence type="fractalNoise" baseFrequency="0.7" numOctaves="3" stitchTiles="stitch"/></filter><rect width="100%" height="100%" filter="url(%23n)"/></svg>') 0% 0% / 250px 250px; 
    opacity: 0.012; 
    animation: noise-pan 15s linear infinite; 
}
@keyframes noise-pan { 0% { transform: translate(0,0); } 100% { transform: translate(-120px, -120px); } }

@keyframes cardEntrance {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

h1, h2, h3, h4, h5, h6 {
  letter-spacing: -0.025em; 
  font-weight: 700; 
  color: var(--text-color);
  line-height: var(--line-height-heading);
}
h1 { font-size: 1.5rem; margin-bottom: 1rem; } 
h2 { font-size: 2.5rem; margin-bottom: 2.25rem; } 
h3 { font-size: 1.875rem; margin-bottom: 2rem; } 
h4 { font-size: 1.5rem; margin-bottom: 1.75rem; } 
h5 { font-size: 1.25rem; margin-bottom: 1rem; }

/* Main Layout */
#app-container {
  display: flex;
  height: 100vh;
  padding: 1rem;
  gap: 1rem;
}

#controls-sidebar {
  width: 440px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
}
#main-content {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.inspector-panel {
  flex-shrink: 0;
  background: var(--sub-panel-bg-color);
  border: 1px solid var(--sub-panel-border-color);
  border-radius: var(--border-radius-lg);
  padding: 1.75rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  box-shadow: var(--shadow-lg);
}

.sidebar-header {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--sub-panel-border-color);
}
.sidebar-content {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  overflow-y: auto;
  padding-right: 0.5rem; /* for scrollbar */
}
.sidebar-footer {
  padding-top: 1rem;
  border-top: 1px solid var(--sub-panel-border-color);
  display: flex;
  justify-content: center;
}

.flow-canvas-wrapper {
  flex-grow: 1;
  background-color: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 0; /* Prevents flex item from growing beyond parent */
}

/* Forms & Inputs */
.input-group { display: flex; flex-direction: column; gap: 0.75rem; }
.input-group-tight { display: flex; flex-direction: column; gap: 0.5rem; }
.input-label {
    font-size: 1rem; 
    font-weight: 500; 
    color: var(--text-secondary-color); 
    margin-bottom: 0.5rem;
    display: block;
}

select, textarea.input-base, input.input-base {
  background-color: rgba(var(--card-bg-base-rgb), 0.2);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  padding: 0.8rem 1rem; 
  border-radius: var(--border-radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  width: 100%;
  transition: border-color var(--transition-speed), box-shadow var(--transition-speed), background-color var(--transition-speed);
  box-shadow: var(--shadow-inset);
}
select {
  appearance: none; 
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23a0a8c8' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 1em;
}
select:hover, textarea.input-base:hover, input.input-base:hover {
  background-color: rgba(var(--card-bg-base-rgb), 0.3);
  border-color: var(--border-hover-color);
}
select:focus, textarea.input-base:focus, input.input-base:focus {
  outline: none;
  border-color: var(--accent-blue);
  background-color: rgba(var(--card-bg-base-rgb), 0.35);
  box-shadow: 0 0 0 3px rgba(var(--accent-blue-rgb), 0.25), var(--shadow-inset-strong);
}
select:disabled, textarea.input-base:disabled, input.input-base:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  background-color: rgba(var(--bg-color-rgb), 0.2);
  box-shadow: none;
}

textarea.input-base::placeholder, input.input-base::placeholder {
  color: var(--text-tertiary-color);
  opacity: 0.7;
}
textarea.input-base {
  min-height: 120px;
  resize: vertical;
}

/* Buttons */
.button, button {
    background-color: rgba(var(--card-bg-base-rgb), 0.7); 
    color: var(--text-secondary-color); 
    border: 1px solid var(--border-color);
    padding: 0.9rem 1.8rem;
    border-radius: var(--border-radius-md); 
    cursor: pointer;
    transition: background-color var(--transition-speed), border-color var(--transition-speed), box-shadow var(--transition-speed), color var(--transition-speed), transform var(--transition-speed-fast);
    font-family: var(--font-family);
    font-size: var(--font-size-sm); 
    font-weight: 500;
    display: inline-flex; 
    align-items: center;
    justify-content: center;
    gap: 0.75rem; 
    text-decoration: none; 
    letter-spacing: 0.015em;
}
.button:hover, button:hover {
    background-color: rgba(var(--card-bg-base-rgb), 0.55); 
    box-shadow: 0 0 0 1.5px rgba(var(--glow-color-rgb), 0.15);
    color: var(--text-color); 
    border-color: var(--border-hover-color);
}
.button:active, button:active {
    transform: translateY(1px);
    filter: brightness(0.92);
    box-shadow: var(--shadow-inset);
}
.button:disabled, button:disabled {
    opacity: 0.4; 
    cursor: not-allowed;
    background-color: rgba(var(--card-bg-base-rgb),0.15); 
    transform: translateY(0) scale(1);
    box-shadow: none;
    color: var(--text-tertiary-color);
    border-color: rgba(var(--border-color-rgb),0.5);
}
.button:focus-visible, button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--bg-color), 0 0 0 5px var(--focus-ring-color), var(--shadow-lg);
}

.button.primary-action {
  background-image: none;
  background-color: rgba(var(--card-bg-base-rgb), 0.8);
  border: 1px solid var(--border-hover-color);
  color: var(--text-color);
  font-weight: 600;
  font-size: 1rem;
  padding: 1rem 2rem;
  box-shadow: var(--shadow-md);
  text-shadow: none;
}
.button.primary-action:hover {
  background-color: rgba(var(--card-bg-base-rgb), 1);
  border-color: var(--accent-purple);
  box-shadow: 0 0 15px rgba(var(--accent-purple-rgb), 0.2), var(--shadow-lg);
  transform: translateY(-2px);
}
.button.primary-action:active {
  transform: translateY(0);
  filter: brightness(0.95);
  box-shadow: var(--shadow-inset-strong);
}
.button.primary-action:focus-visible {
  box-shadow: 0 0 0 3px var(--bg-color), 0 0 0 5px var(--accent-purple), var(--shadow-lg);
}

.button.button-icon {
  padding: 0.5rem;
  width: 36px;
  height: 36px;
  line-height: 1;
}

/* Button Icons & Statuses */
.button .material-symbols-outlined, button .material-symbols-outlined, label.button .material-symbols-outlined {
  font-size: 1.25em;
  line-height: 1;
  transform: translateY(1px); /* Optical alignment */
}
.button.primary-action .material-symbols-outlined {
    font-size: 1.1em;
}
.code-actions .button .material-symbols-outlined {
    font-size: 1.125rem;
    transform: translateY(2px);
}
.button.button-icon .material-symbols-outlined {
  font-size: 1.5rem;
  transform: none;
}
.button.copied {
  background-color: var(--accent-green) !important;
  color: var(--bg-color) !important;
  border-color: var(--accent-green) !important;
}
.button.copied .button-text, .button.copied .material-symbols-outlined {
  color: inherit !important;
}
.button.copy-failed {
  background-color: var(--accent-pink) !important;
  color: var(--bg-color) !important;
  border-color: var(--accent-pink) !important;
}
.button.copy-failed .button-text, .button.copy-failed .material-symbols-outlined {
  color: inherit !important;
}

/* Tabs */
#tabs-nav-container {
  display: flex;
  flex-wrap: wrap; 
  border-bottom: 1px solid var(--border-color);
  position: relative;
  flex-shrink: 0;
  padding: 0 1.5rem;
  gap: 0.5rem;
}
.tab-button {
  padding: 1rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary-color);
  background-color: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition-speed-fast), color var(--transition-speed-fast), border-bottom-color var(--transition-speed-fast), box-shadow var(--transition-speed-fast);
  margin-bottom: -1px;
  border-radius: var(--border-radius-md) var(--border-radius-md) 0 0;
  position: relative;
  letter-spacing: 0.01em;
}
.tab-button:hover:not(:disabled):not(.active) { 
  color: var(--text-color);
  background-color: rgba(var(--card-bg-base-rgb), 0.2);
  border-bottom-color: rgba(var(--border-hover-color),0.5);
}
.tab-button.active {
  color: var(--text-color);
  font-weight: 600;
  border-bottom-color: var(--accent-purple);
}

/* Results Area --- REFINED STYLES START HERE --- */
#pipelines-content-container {
  overflow: auto; 
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  flex-grow: 1;
  background-color: rgba(var(--bg-color-rgb), 0.1);
}

.iterations-list {
  list-style-type: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.model-detail-card {
  background: transparent;
  border: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  animation: cardEntrance 0.6s var(--easing-curve) backwards;
}

.model-detail-header {
  display: flex;
  justify-content: space-between; 
  align-items: flex-start; 
  margin-bottom: 1.5rem; 
  position: relative;
}
.model-title-area {
  flex-grow: 1;
  padding-right: 1rem;
}
.model-title {
  font-size: 1.5rem; 
  font-weight: 600;
  color: var(--text-color);
  margin: 0; 
  letter-spacing: -0.02em;
  line-height: 1.3;
}
.model-card-actions {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-shrink: 0;
}

.iteration-details {
  display: grid;
  gap: 2.5rem;
}
.iteration-grid-standard {
  grid-template-columns: minmax(0, 1fr);
}
.iteration-grid-website {
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
}
@media (max-width: 1200px) {
  .iteration-grid-website {
    grid-template-columns: minmax(0, 1fr);
  }
}

.info-column, .preview-column, .code-column {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  min-width: 0;
}
.preview-column {
  position: sticky;
  top: 2rem;
  height: calc(100vh - 12rem);
  max-height: 800px;
}

.model-detail-section { 
  background-color: rgba(var(--bg-color-rgb), 0.3);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
}

.model-section-header, .code-block-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 1rem;
}
.model-section-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary-color); 
  margin: 0;
  padding: 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.code-actions {
  display: flex;
  gap: 0.5rem;
}
.code-actions .button {
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  background-color: rgba(var(--card-bg-base-rgb), 0.5);
}
.code-actions .button:hover {
  background-color: rgba(var(--card-bg-base-rgb), 0.7);
}


.collapsible-section summary {
  cursor: pointer;
  list-style: none; /* Hide default marker */
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
}
.collapsible-section summary::-webkit-details-marker {
  display: none;
}
.collapsible-section summary:hover .model-section-title {
  color: var(--text-color);
}
.collapsible-section summary::after {
  content: '▼';
  font-size: 0.8em;
  color: var(--text-secondary-color);
  transition: transform var(--transition-speed-fast) var(--easing-curve);
}
.collapsible-section[open] > summary::after {
  transform: rotate(180deg);
}
.collapsible-section > *:not(summary) {
    margin-top: 1rem;
}

.scrollable-content-area { 
  max-height: 500px;
  overflow: auto;
  border-radius: var(--border-radius-md);
  background-color: rgba(var(--bg-color-rgb), 0.5);
  color: var(--text-color);
  flex-grow: 1; /* Allow scroll area to fill space */
  border: 1px solid var(--border-color);
}
.scrollable-content-area pre {
  margin: 0;
  padding: 1.25rem 1.5rem;
  font-family: var(--font-family-monospace);
  font-size: 0.9rem;
  line-height: 1.7; 
  white-space: pre-wrap;
  word-break: break-all;
}

/* Status Messages & Badges */
.status-badge {
    padding: 0.4rem 0.8rem;
    border-radius: 99px;
    font-weight: 600;
    display: inline-block;
    font-size: 0.8rem;
    border: 1px solid transparent;
    text-transform: capitalize;
}

/* Math Mode - Strategic Solver and Hypothesis Explorer Styles */
.strategies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.strategy-card {
    background-color: rgba(var(--card-bg-base-rgb), 0.3);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
}

.strategy-card h5 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0 0 0.75rem 0;
}

.strategy-text {
    font-size: 0.9rem;
    color: var(--text-secondary-color);
    line-height: 1.5;
    margin-bottom: 1rem;
}

.sub-strategies-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.sub-strategy-card {
    background-color: rgba(var(--bg-color-rgb), 0.4);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 0.75rem;
    transition: all var(--transition-speed-fast);
}

.sub-strategy-card.status-completed {
    border-color: var(--accent-green);
    box-shadow: 0 0 8px -2px var(--success-glow);
}

.sub-strategy-card.status-processing {
    border-color: var(--accent-yellow);
    box-shadow: 0 0 8px -2px rgba(var(--accent-yellow-rgb), 0.3);
}

.sub-strategy-card.status-error {
    border-color: var(--accent-pink);
    box-shadow: 0 0 8px -2px var(--error-glow);
}

.sub-strategy-card h6 {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0 0 0.5rem 0;
}

.sub-strategy-text {
    font-size: 0.75rem;
    color: var(--text-tertiary-color);
    line-height: 1.4;
}

.hypotheses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.hypothesis-card {
    background-color: rgba(var(--card-bg-base-rgb), 0.3);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-speed);
}

.hypothesis-card.hypothesis-proven {
    border-color: var(--accent-green);
    box-shadow: 0 0 15px -3px var(--success-glow);
    background-color: rgba(var(--accent-green-rgb), 0.05);
}

.hypothesis-card.hypothesis-refuted {
    border-color: var(--accent-pink);
    box-shadow: 0 0 15px -3px var(--error-glow);
    background-color: rgba(var(--accent-pink-rgb), 0.05);
}

.hypothesis-card.hypothesis-contradiction {
    border-color: var(--accent-purple);
    box-shadow: 0 0 15px -3px var(--purple-glow);
    background-color: rgba(var(--accent-purple-rgb), 0.05);
}

.hypothesis-card h5 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0 0 0.75rem 0;
}

.hypothesis-text {
    font-size: 0.95rem;
    color: var(--text-secondary-color);
    line-height: 1.6;
    margin-bottom: 1rem;
    font-style: italic;
}

.hypothesis-status {
    margin-bottom: 1rem;
}

.prover-disprover-status {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.prover-status, .disprover-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.agent-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-tertiary-color);
}

.track-description {
    font-size: 0.9rem;
    color: var(--text-secondary-color);
    margin-bottom: 1rem;
    font-style: italic;
}
.api-key-status-message { padding: 0.5rem 1rem; margin-bottom: 0.5rem;}
.status-ok, .status-completed { background-color: rgba(var(--accent-green-rgb), 0.15); color: var(--accent-green); }
.status-error, .status-failed { background-color: rgba(var(--accent-pink-rgb), 0.15); color: var(--accent-pink); }
.status-processing, .status-retrying, .status-orchestrating, .status-orchestrating_retrying, .status-processing_workers, .status-stopping { background-color: rgba(var(--accent-yellow-rgb), 0.15); color: var(--accent-yellow); }
.status-idle, .status-pending, .status-stopped, .status-cancelled { background-color: rgba(var(--card-bg-base-rgb), 0.4); color: var(--text-tertiary-color); }

.tab-button.status-math-error, .tab-button.status-error { border-bottom-color: rgba(var(--accent-pink-rgb), 0.6); }
.tab-button.status-math-processing, .tab-button.status-processing { border-bottom-color: rgba(var(--accent-yellow-rgb), 0.6); }
.tab-button.status-math-completed, .tab-button.status-completed { border-bottom-color: rgba(var(--accent-green-rgb), 0.6); }

.tab-button.active.status-math-error, .tab-button.active.status-error { border-bottom-color: var(--accent-pink); }
.tab-button.active.status-math-processing, .tab-button.active.status-processing { border-bottom-color: var(--accent-yellow); }
.tab-button.active.status-math-completed, .tab-button.active.status-completed {
  border-bottom-color: var(--accent-green);
  box-shadow: 0 2px 20px -5px var(--success-glow);
}
#math-tab-final-result.status-math-completed.active {
    color: var(--accent-green);
    font-weight: 700;
    box-shadow: 0 4px 25px -5px var(--success-glow);
}


.status-message {
  padding: 1rem 1.5rem; 
  border-radius: var(--border-radius-md);
  font-size: 1rem; 
  border: 1px solid; 
  line-height: 1.7;
}
.status-message.error {
  background-color: rgba(var(--accent-pink-rgb), 0.1);
  border-color: rgba(var(--accent-pink-rgb),0.35); 
  color: var(--accent-pink);
}
.status-message pre { white-space: pre-wrap; word-break: break-all; font-family: var(--font-family-monospace); font-size: 0.9em; max-height: 200px; overflow-y: auto; }

.suggestion-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.suggestion-list li {
  background-color: rgba(var(--accent-purple-rgb), 0.1);
  border: 1px solid rgba(var(--accent-purple-rgb), 0.2);
  padding: 0.75rem 1.25rem;
  border-radius: var(--border-radius-md);
  font-size: 0.95rem;
  line-height: 1.6;
  transition: background-color var(--transition-speed-fast);
}
.suggestion-list li:hover {
  background-color: rgba(var(--accent-purple-rgb), 0.2);
}
.suggestion-list li p {
  margin: 0;
  color: var(--text-color);
}

.preview-section { flex-grow: 1; display: flex; flex-direction: column; }
.preview-section .model-section-header { margin-bottom: 0; padding-bottom: 0; border: none; }
.html-preview-container {
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  background-color: #ffffff;
  flex-grow: 1;
  margin-top: 1rem;
}
.html-preview-container iframe { width: 100%; height: 100%; border: none; }
.html-preview-container .empty-state-message {
  background-color: rgba(var(--bg-color-rgb), 0.4);
  color: var(--text-tertiary-color);
}
.preview-section .button-icon { background: none; border: none; }
.preview-section .button-icon:hover { background-color: rgba(var(--card-bg-base-rgb), 0.4); }


/* Modal */
.modal-overlay {
    background-color: rgba(var(--bg-color-rgb), 0.45); 
    backdrop-filter: var(--card-blur-effect); 
    -webkit-backdrop-filter: var(--card-blur-effect); 
    position: fixed; 
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%; 
    display: none; 
    align-items: center; 
    justify-content: center; 
    z-index: 2100; 
    opacity: 0;
    transition: opacity var(--transition-speed-slow) var(--easing-curve);
}
.modal-overlay.is-visible { 
    display: flex;
    opacity: 1;
}
.modal-content {
    background: linear-gradient(145deg, rgba(var(--card-bg-base-rgb), 0.7), rgba(var(--bg-color-rgb), 0.6)); 
    border: 1px solid var(--border-hover-color); 
    border-radius: var(--border-radius-lg); 
    box-shadow: var(--shadow-xl);
    padding: 0;
    width: 95vw;
    max-width: 2200px; /* A generous max-width for ultra-wide screens */
    display: flex; 
    flex-direction: column; 
    height: 95vh;
    transform: scale(0.9) translateY(40px); 
    transition: transform var(--transition-speed-slow) cubic-bezier(0.16, 1.2, 0.3, 1), opacity var(--transition-speed-slow) var(--easing-curve); 
    opacity: 0;
    backdrop-filter: var(--card-blur-effect); 
    -webkit-backdrop-filter: var(--card-blur-effect); 
}
.modal-overlay.is-visible .modal-content {
   transform: scale(1) translateY(0);
   opacity: 1;
}
.modal-header {
    padding: 1.5rem 2.5rem;
    margin-bottom: 0;
    border-bottom: 1px solid var(--border-color); 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    flex-shrink: 0;
}
.modal-title {
    font-size: 1.5rem; 
    font-weight: 700; 
    color: var(--text-color); 
    text-shadow: 0 2px 5px rgba(var(--bg-color-rgb), 0.35);
}
.modal-close-button { 
    font-size: 2rem; 
    padding: 0.5rem; 
    background: transparent; 
    border: none; 
    color: var(--text-secondary-color); 
    cursor: pointer;
    line-height: 1; 
    transition: all var(--transition-speed-fast) var(--easing-curve);
    border-radius: 50%;
    width: 44px; 
    height: 44px;
}
.modal-close-button:hover {
  color: var(--accent-pink);
  background-color: rgba(var(--accent-pink-rgb), 0.1);
  transform: rotate(90deg) scale(1.1);
}
.modal-body {
    flex-grow: 1;
    overflow-y: hidden;
    display: flex;
    flex-direction: column;
}
.custom-prompts-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary-color);
    margin: 1rem 2.5rem 0;
    line-height: 1.6;
    max-width: 80ch;
    flex-shrink: 0;
}
#diff-modal-body {
    display: flex;
    overflow: hidden;
    height: 100%;
    gap: 1.5rem;
    padding: 2.5rem;
}
#diff-selector-panel {
  flex-basis: 320px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
#diff-viewer-panel {
    flex-grow: 1;
    overflow: auto;
    font-family: var(--font-family-monospace);
    font-size: 0.9rem;
    background-color: var(--bg-color);
    padding: 1rem;
    border-radius: var(--border-radius-md);
}
#diff-target-tree .tree-item {
    padding: 0.5rem 0.75rem;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: background-color var(--transition-speed-fast);
    font-size: 0.9rem;
}
#diff-target-tree .tree-item.selected {
    background-color: rgba(var(--accent-purple-rgb), 0.15);
    color: var(--accent-purple);
}
#diff-target-tree .tree-item:hover:not(.selected) {
    background-color: rgba(var(--card-bg-base-rgb), 0.4);
}
#diff-target-tree .tree-item.disabled { opacity: 0.5; cursor: not-allowed; }
.diff-view span { display: block; padding-left: 2em; position: relative; border-left: 2px solid transparent; }
.diff-added { background-color: rgba(var(--accent-green-rgb), 0.1); border-left-color: var(--accent-green); }
.diff-added::before { content: '+'; position: absolute; left: 0.5em; color: var(--accent-green); }
.diff-removed { background-color: rgba(var(--accent-pink-rgb), 0.1); border-left-color: var(--accent-pink); }
.diff-removed::before { content: '-'; position: absolute; left: 0.5em; color: var(--accent-pink); }

.custom-scrollbar::-webkit-scrollbar {
    width: 8px; 
    height: 8px; 
}
.custom-scrollbar::-webkit-scrollbar-track {
    background: rgba(var(--bg-color-rgb), 0.1); 
    border-radius: 4px;
}
.custom-scrollbar::-webkit-scrollbar-thumb {
    background: var(--border-hover-color); 
    border-radius: 4px;
    border: 2px solid transparent; 
    background-clip: content-box;
    transition: background-color var(--transition-speed-fast) var(--easing-curve);
}
.custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background: var(--glow-color);
}
.custom-scrollbar {
    scrollbar-width: thin;
    scrollbar-color: var(--border-hover-color) rgba(var(--bg-color-rgb), 0.1);
}

/* Redesigned Prompts Modal */
#prompts-modal-layout {
    display: flex;
    gap: 0; /* No gap, borders will handle separation */
    flex-grow: 1;
    overflow: hidden;
    padding: 1.5rem 2.5rem 2.5rem;
}

#prompts-modal-nav {
    width: 320px;
    flex-shrink: 0;
    overflow-y: auto;
    padding: 1rem;
    background: rgba(var(--card-bg-base-rgb), 0.1);
    border: 1px solid var(--border-color);
    border-right: none;
    border-radius: var(--border-radius-lg) 0 0 var(--border-radius-lg);
}

.prompts-nav-mode-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
    padding: 0.5rem 0.5rem 1rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.prompts-nav-group-title {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-tertiary-color);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 1.25rem 0.5rem 0.5rem;
}

.prompts-nav-item {
    padding: 0.85rem 1rem;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    font-weight: 500;
    color: var(--text-secondary-color);
    border: 1px solid transparent;
    transition: background-color var(--transition-speed-fast), color var(--transition-speed-fast), border-color var(--transition-speed-fast), transform var(--transition-speed-fast);
    margin: 0.25rem 0;
    line-height: 1.4;
}
.prompts-nav-item:hover {
    background-color: rgba(var(--card-bg-base-rgb), 0.3);
    color: var(--text-color);
    transform: translateX(3px);
}
.prompts-nav-item.active {
    background-color: rgba(var(--accent-purple-rgb), 0.15);
    color: var(--accent-purple);
    font-weight: 600;
    border-color: rgba(var(--accent-purple-rgb), 0.4);
    box-shadow: 0 0 10px -2px rgba(var(--accent-purple-rgb), 0.2);
    transform: translateX(3px);
}

#prompts-modal-content {
    flex-grow: 1;
    overflow-y: auto;
    padding: 1.5rem 2rem;
    background-color: rgba(var(--bg-color-rgb),0.3);
    border: 1px solid var(--border-color);
    border-radius: 0 var(--border-radius-lg) var(--border-radius-lg) 0;
}

.prompts-mode-container { display: none; }
.prompts-mode-container.active { display: block; }

.prompt-content-pane {
    display: none;
    flex-direction: column;
    gap: 1.5rem; /* Gap between cards */
    animation: cardEntrance 0.4s var(--easing-curve) backwards;
}
.prompt-content-pane.active {
    display: flex;
}

.prompt-pane-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-color);
    margin: 0;
    padding-bottom: 1.25rem;
    border-bottom: 1.5px solid var(--border-color);
}

.prompt-card {
    background-color: rgba(var(--card-bg-base-rgb), 0.25);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-inset-strong);
    display: flex;
    flex-direction: column;
}
.prompt-card-header {
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(var(--card-bg-base-rgb), 0.2);
}
.prompt-card-title {
    font-weight: 600;
    color: var(--text-color);
    font-size: 1rem;
}
.prompt-card-body {
    padding: 0.5rem; /* Padding to contain the textarea */
}

.prompt-placeholders {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary-color);
    font-weight: 400;
}
.prompt-placeholders code {
    background-color: rgba(var(--accent-blue-rgb), 0.15);
    color: var(--accent-blue);
    font-size: 0.9em;
    padding: 0.3em 0.6em;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family-monospace);
    border: 1px solid rgba(var(--accent-blue-rgb), 0.3);
    margin: 0 0.2em;
}

textarea.prompt-textarea {
    background-color: transparent;
    border: none;
    padding: 1rem 1.25rem;
    font-family: var(--font-family-monospace);
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text-color);
    border-radius: var(--border-radius-md);
    resize: vertical;
    width: 100%;
    transition: all var(--transition-speed);
    box-shadow: none;
}
textarea.prompt-textarea:focus {
    background-color: rgba(var(--bg-color-rgb), 0.5);
    box-shadow: 0 0 0 2px var(--accent-blue);
    outline: none;
}

/* Empty State & Informational Messages */
.empty-state-message {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
    min-height: 100px;
    height: 100%;
    width: 100%;
    color: var(--text-tertiary-color);
    font-style: italic;
    background-color: rgba(var(--bg-color-rgb), 0.2);
    border-radius: var(--border-radius-md);
    box-sizing: border-box;
}
.no-details-message {
    padding: 1rem;
    font-style: italic;
    color: var(--text-tertiary-color);
}

/* Custom styles for this app */
.radio-group-modern {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: 0.75rem;
}
.radio-label-modern {
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-speed-fast) var(--easing-curve);
  background-color: rgba(var(--card-bg-base-rgb), 0.2);
  color: var(--text-secondary-color);
  font-weight: 500;
  font-size: 0.9rem;
}
.radio-label-modern input {
  display: none;
}
.radio-label-modern:hover {
  background-color: rgba(var(--card-bg-base-rgb), 0.4);
  border-color: var(--border-hover-color);
}
.radio-label-modern:has(:checked) {
  background-color: rgba(var(--accent-purple-rgb), 0.15);
  border-color: var(--accent-purple);
  box-shadow: 0 0 10px rgba(var(--accent-purple-rgb), 0.2);
  color: var(--accent-purple);
}
.radio-label-modern:has(:checked) span {
    font-weight: 600;
}
.pipeline-selectors-container {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.pipeline-selector-item {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--border-radius-md);
    transition: background-color var(--transition-speed-fast);
}
.pipeline-selector-item:hover {
    background-color: rgba(var(--card-bg-base-rgb), 0.3);
}
.pipeline-selector-item input[type="checkbox"] {
    margin-right: 0.75rem;
    accent-color: var(--accent-purple);
    width: 1.2em;
    height: 1.2em;
    cursor: pointer;
}
.pipeline-selector-item label {
    font-size: 0.9rem;
    color: var(--text-secondary-color);
    cursor: pointer;
}

details.sidebar-section {
  background: transparent;
  border: 1px solid var(--sub-panel-border-color);
  border-radius: var(--border-radius-md);
  margin-bottom: 1.5rem;
}
.sidebar-section {
    background: transparent;
    border: 1px solid var(--sub-panel-border-color);
    border-radius: var(--border-radius-md);
    margin-bottom: 1.5rem;
}
summary.sidebar-section-header, .sidebar-section-header {
  padding: 1rem 1.25rem;
  font-weight: 600;
  list-style: none;
  transition: background-color var(--transition-speed-fast);
}
.sidebar-section-header[role="button"] {
    cursor: pointer;
}
.sidebar-section-header[role="button"]:hover {
    background-color: rgba(var(--card-bg-base-rgb), 0.2);
}
summary.sidebar-section-header::-webkit-details-marker {
  display: none;
}
details[open] > summary.sidebar-section-header {
  border-bottom: 1px solid var(--sub-panel-border-color);
  background-color: rgba(var(--card-bg-base-rgb), 0.2);
}
.sidebar-section-content {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
details.prompt-group[open] {
    border-left-color: var(--accent-blue);
}
summary.prompt-group-title {
    cursor: pointer;
    list-style: none;
    font-weight: 500;
    padding: 0.25rem 0;
}
summary.prompt-group-title::-webkit-details-marker { display: none; }
.prompt-group-content { padding-top: 1rem; display: flex; flex-direction: column; gap: 1rem; }

/* Fix for Tab Content Visibility */
.pipeline-content { display: none; }
.pipeline-content.active {
    display: flex;
    flex-direction: column;
    animation: cardEntrance 0.5s var(--easing-curve) backwards;
}
.pipeline-content > *:not(:first-child) {
    margin-top: 2.5rem;
}

#api-key-form-container .input-base {
    padding: 0.6rem 0.8rem;
    font-size: var(--font-size-xs);
}
#api-key-form-container .button {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-xs);
    background-color: rgba(var(--card-bg-base-rgb), 0.5);
}
#api-key-form-container .button:hover {
    background-color: rgba(var(--card-bg-base-rgb), 0.7);
}

/* File Upload Area */
.file-drop-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  border: 2px dashed var(--border-color);
  border-radius: var(--border-radius-md);
  background-color: rgba(var(--card-bg-base-rgb), 0.2);
  cursor: pointer;
  transition: all var(--transition-speed-fast) var(--easing-curve);
  text-align: center;
  color: var(--text-secondary-color);
}
.file-drop-area:hover {
  border-color: var(--accent-purple);
  background-color: rgba(var(--accent-purple-rgb), 0.08);
  color: var(--text-color);
}
.file-drop-area .file-drop-icon {
  width: 32px;
  height: 32px;
  margin-bottom: 1rem;
  opacity: 0.7;
  transition: opacity var(--transition-speed-fast);
  color: var(--text-secondary-color);
}
.file-drop-area:hover .file-drop-icon {
  opacity: 1;
  color: var(--accent-purple);
}

/* Math Mode Specific Layout */
.math-problem-display {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.math-problem-display .problem-text {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--text-secondary-color);
}
.math-problem-display .problem-image-display {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
}
.math-strategy-branch .strategy-text {
    font-size: 1rem;
    color: var(--text-secondary-color);
    margin-top: -1rem;
    margin-bottom: 1rem;
}
.math-sub-strategies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}
.math-sub-strategy-card {
    padding: 1rem;
}
.math-sub-strategy-card .sub-strategy-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}
.sub-strategy-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
}
.sub-strategy-text {
    font-size: 0.9rem;
    color: var(--text-secondary-color);
    line-height: 1.6;
}
.solution-details .code-block-wrapper, .prompt-details .scrollable-content-area {
    margin-top: 1rem;
}

.math-judging-section {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    background: linear-gradient(rgba(var(--accent-purple-rgb), 0.03), transparent);
}

.math-judging-section .markdown-content h3, 
#pipeline-content-final-result .markdown-content h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-purple);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(var(--accent-purple-rgb), 0.2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.math-judging-section .markdown-content hr,
#pipeline-content-final-result .markdown-content hr {
    border: none;
    height: 1px;
    background-color: var(--border-color);
    margin: 1.5rem 0;
}


/* React Mode Specific Layout */
.worker-details-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 2rem;
}
.react-final-output-pane {
  margin-top: 2rem;
}

hr.sub-divider {
  border: none;
  height: 1px;
  background-color: var(--border-color);
  margin: 2rem 0;
}