/* 
 * Collinear Fractals GPU Explorer Stylesheet
 * Professional Bright Mode Mathematical Research Theme.
 */

:root {
  --bg-color: #f8fafc; /* Slate-50 */
  --panel-bg: #ffffff;
  --panel-border: #cbd5e1; /* Slate-300 */
  --text-primary: #0f172a; /* Slate-900 */
  --text-secondary: #475569; /* Slate-600 */
  
  --color-primary: #4f46e5; /* Indigo-600 */
  --color-primary-light: #e0e7ff; /* Indigo-100 */
  --color-primary-glow: rgba(79, 70, 229, 0.08);
  
  --color-interior: #059669; /* Emerald-600 */
  --color-interior-bg: #d1fae5; /* Emerald-100 */
  --color-interior-glow: rgba(5, 150, 105, 0.08);
  
  --color-exterior: #dc2626; /* Red-600 */
  --color-exterior-bg: #fee2e2; /* Red-100 */
  
  --color-undetermined: #b45309; /* Amber-700 */
  --color-undetermined-bg: #fde68a; /* Amber-200 */
  
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-primary);
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

header {
  background: #ffffff;
  border-bottom: 1px solid var(--panel-border);
  padding: 0.8rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 10;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

h1 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0;
  color: #1e1b4b; /* Deep Indigo-950 */
}

.subtitle {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-top: 0.1rem;
}

.container {
  flex: 1;
  display: flex;
  overflow: hidden;
}

/* Sidebar Controls */
.controls {
  width: 320px;
  background: #f1f5f9; /* Slate-100 */
  border-right: 1px solid var(--panel-border);
  padding: 1.5rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  z-index: 5;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

.slider-container {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

input[type="range"] {
  flex: 1;
  accent-color: var(--color-primary);
  height: 5px;
  border-radius: 3px;
  background: #cbd5e1;
  outline: none;
}

.slider-val {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  min-width: 2.2rem;
  text-align: right;
  color: var(--text-primary);
}

input[type="number"], select {
  background: #ffffff;
  border: 1px solid #cbd5e1;
  color: var(--text-primary);
  padding: 0.45rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="number"]:focus, select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary-glow);
}

input[type="color"] {
  width: 100%;
  height: 2rem;
  border: 1px solid #cbd5e1;
  border-radius: 4px;
  background: #ffffff;
  padding: 0.15rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  text-transform: none;
  letter-spacing: normal;
}

.checkbox-label input {
  accent-color: var(--color-primary);
  width: 15px;
  height: 15px;
}

.btn {
  background: var(--color-primary);
  color: white;
  border: none;
  padding: 0.6rem 1rem;
  border-radius: 4px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}

.btn:hover {
  background: #3730a3;
}

.btn:active {
  transform: scale(0.98);
}

.btn-secondary {
  background: #ffffff;
  border: 1px solid #cbd5e1;
  color: var(--text-primary);
  box-shadow: 0 1px 2px rgba(0,0,0,0.02);
}

.btn-secondary:hover {
  background: #f8fafc;
  border-color: #94a3b8;
}

.button-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.palette-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.palette-grid label {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.68rem;
  letter-spacing: 0;
  text-transform: none;
}

/* Visualization Canvas Panels */
.workspace {
  flex: 1;
  display: flex;
  overflow: hidden;
  background-color: #e2e8f0; /* Border spacing color */
  gap: 1px; /* Divider */
}

.canvas-panel {
  flex: 1;
  position: relative;
  display: flex;
  flex-direction: column;
  background: #ffffff;
}

.panel-header {
  position: absolute;
  top: 1rem;
  left: 1rem;
  right: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 4;
}

.panel-title {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid #cbd5e1;
  backdrop-filter: blur(8px);
  padding: 0.35rem 0.75rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.panel-actions {
  display: flex;
  gap: 0.35rem;
}

.panel-btn {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid #cbd5e1;
  color: var(--text-primary);
  border-radius: 4px;
  padding: 0.3rem 0.55rem;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.panel-btn:hover {
  background: #f8fafc;
}

.interaction-hint {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  max-width: min(32rem, calc(100% - 2rem));
  z-index: 4;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid #cbd5e1;
  border-radius: 4px;
  padding: 0.35rem 0.55rem;
  color: var(--text-secondary);
  font-size: 0.68rem;
  font-weight: 600;
  pointer-events: none;
}

.workspace.focus-parameter #dynamical-panel,
.workspace.focus-dynamical #parameter-panel {
  display: none;
}

.canvas-container {
  flex: 1;
  position: relative;
  overflow: hidden;
  background-color: #ffffff;
}

canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  cursor: crosshair;
}

/* Floating Legends on Canvases */
.legend-panel {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid #cbd5e1;
  backdrop-filter: blur(8px);
  padding: 0.6rem 0.8rem;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  pointer-events: none; /* Let clicks pass through to the canvas */
  z-index: 4;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.legend-color {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  display: inline-block;
  border: 1px solid rgba(0, 0, 0, 0.1);
}

/* Status Bar */
.status-bar {
  background: #ffffff;
  border-top: 1px solid var(--panel-border);
  padding: 0.6rem 2rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 10;
  box-shadow: 0 -1px 3px rgba(0, 0, 0, 0.01);
}

.status-group {
  display: flex;
  gap: 2rem;
}

.verdict-tag {
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  font-weight: 700;
  font-size: 0.75rem;
}

.verdict-Interior {
  background: var(--color-interior-bg);
  color: var(--color-interior);
  border: 1px solid rgba(5, 150, 105, 0.25);
}


.verdict-Interior-offLens {
  background: #dbeafe;
  color: #2563eb;
  border: 1px solid rgba(37, 99, 235, 0.25);
}

.verdict-Exterior {
  background: var(--color-exterior-bg);
  color: var(--color-exterior);
  border: 1px solid rgba(220, 38, 38, 0.25);
}

.verdict-Undetermined {
  background: var(--color-undetermined-bg);
  color: var(--color-undetermined);
  border: 1px solid rgba(217, 119, 6, 0.25);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 5px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.15);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.25);
}

.repo-link {
  font-size: 0.68rem;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: color 0.15s ease, opacity 0.15s ease;
}
.repo-link:hover {
  color: #3730a3;
  opacity: 0.95;
}

/* Modal layer */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(15, 23, 42, 0.32);
}

.modal-backdrop[hidden] {
  display: none;
}

.modal {
  width: min(720px, 100%);
  max-height: min(760px, calc(100vh - 2rem));
  overflow: auto;
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  box-shadow: 0 24px 70px rgba(15, 23, 42, 0.24);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid #e2e8f0;
}

.modal-header h2 {
  font-size: 1.05rem;
  letter-spacing: 0;
}

.modal-close {
  border: 1px solid #cbd5e1;
  background: #ffffff;
  color: var(--text-primary);
  width: 2rem;
  height: 2rem;
  border-radius: 4px;
  font-size: 1.25rem;
  cursor: pointer;
}

.modal-tabs {
  display: flex;
  gap: 0.35rem;
  padding: 0.75rem 1.25rem 0;
  flex-wrap: wrap;
}

.modal-tab {
  border: 1px solid #cbd5e1;
  background: #ffffff;
  color: var(--text-secondary);
  border-radius: 4px;
  padding: 0.4rem 0.6rem;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
}

.modal-tab.active {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.modal-body {
  padding: 1rem 1.25rem;
  color: var(--text-primary);
  line-height: 1.55;
  font-size: 0.92rem;
}

.modal-body p,
.modal-body ul,
.modal-body ol,
.modal-body pre {
  margin-bottom: 0.85rem;
}

.modal-body ul,
.modal-body ol {
  padding-left: 1.25rem;
}

.modal-body code,
.modal-body pre {
  font-family: var(--font-mono);
}

.modal-body pre {
  overflow: auto;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 0.75rem;
  white-space: pre-wrap;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  padding: 0 1.25rem 1.25rem;
}

@media (max-width: 900px) {
  body {
    height: auto;
    min-height: 100vh;
    overflow: auto;
  }

  .container {
    flex-direction: column;
  }

  .controls {
    width: 100%;
    max-height: none;
  }

  .workspace {
    min-height: 72vh;
  }

  .status-bar {
    flex-wrap: wrap;
    gap: 0.5rem;
  }
}