/* ─── CSS Variables ───────────────────────────────────────────── */
:root {
  /* Brand Colors */
  --bg-main: #050508;
  --bg-sidebar: #0a0a0f;
  
  --bg-panel: rgba(14, 15, 23, 0.7);
  --bg-glass: rgba(20, 21, 35, 0.4);
  --bg-glass-hover: rgba(30, 32, 50, 0.6);
  
  /* Accents */
  --accent-primary: #7c5cfc;
  --accent-primary-hover: #967dfd;
  --accent-secondary: #00d4ff;
  
  /* Text Colors */
  --text-main: #ffffff;
  --text-muted: #8b92a5;
  --text-inverse: #050508;

  /* UI Elements */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(124, 92, 252, 0.3);
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 15px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px rgba(124, 92, 252, 0.15);
  
  /* Spacing */
  --sp-xs: 4px;
  --sp-sm: 8px;
  --sp-md: 16px;
  --sp-lg: 24px;
  --sp-xl: 32px;

  /* Typography */
  --font-sans: 'Roboto Mono', monospace;
  --font-mono: 'Roboto Mono', monospace;
}

/* ─── Base Styles ───────────────────────────────────────────── */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  height: 100vh;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ─── Loading Overlay ───────────────────────────────────────── */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-main);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s ease;
}
.loading-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}
.loading-content {
  text-align: center;
  color: var(--text-main);
  max-width: 400px;
  padding: 0 20px;
}
#loading-status {
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 24px;
  opacity: 1;
  transition: opacity 0.5s ease;
}
#loading-status.fade-out {
  opacity: 0;
}
.brain-loader {
  width: 60px;
  height: 60px;
  margin: 0 auto 20px;
  position: relative;
}
.brain-pulse {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--accent-primary);
  animation: ripple 2s cubic-bezier(0, 0.2, 0.8, 1) infinite;
  opacity: 0;
}
.brain-pulse.delay-1 { animation-delay: 0.6s; }
.brain-pulse.delay-2 { animation-delay: 1.2s; }
@keyframes ripple {
  0% { transform: scale(0.5); opacity: 1; }
  100% { transform: scale(1.5); opacity: 0; }
}

.loading-sub {
  color: var(--accent-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-top: 8px;
  text-transform: uppercase;
}

/* ─── App Structure ─────────────────────────────────────────── */
.app {
  display: flex;
  height: 100vh;
  width: 100vw;
  opacity: 0;
  transition: opacity 0.8s ease;
}
.app.visible {
  opacity: 1;
}

/* ─── Sidebar ─────────────────────────────────────────────── */
.sidebar {
  width: 340px;
  height: 100vh;
  box-sizing: border-box;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  padding: 24px;
  gap: 16px;
  z-index: 100;
  box-shadow: 4px 0 24px rgba(0,0,0,0.5);
  overflow: hidden; 
  position: relative;
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.sidebar.collapsed {
  width: 0;
  padding: 0;
  margin: 0;
  border: none;
  opacity: 0;
  pointer-events: none;
}

.sidebar-toggle {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 101;
  transition: all 0.3s;
  backdrop-filter: blur(10px);
}

.sidebar-toggle:hover {
  background: var(--bg-glass-hover);
  color: var(--text-main);
  border-color: var(--accent-secondary);
}

/* Floating re-open button when sidebar hidden */
#btn-open-sidebar {
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 90;
  width: 40px;
  height: 40px;
  background: var(--bg-sidebar);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: all 0.3s;
}

#btn-open-sidebar.visible {
  display: flex;
  animation: slideIn 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideIn {
  from { transform: translateX(-50px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Custom Scrollbar for inner boxes */
.box-flex-fill::-webkit-scrollbar {
  width: 4px;
}
.box-flex-fill::-webkit-scrollbar-track {
  background: transparent;
}
.box-flex-fill::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
}
.box-flex-fill::-webkit-scrollbar-thumb:hover {
  background: var(--accent-secondary);
}

.sidebar-box {
  padding: 20px;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  background: var(--bg-panel);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
}

.box-white {
  background: rgba(255, 255, 255, 0.03);
}

.box-grey {
  background: var(--bg-panel);
}

.box-flex-fill {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
}

/* Upload Box elements */
.upload-zone {
  border: 1px dashed rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  padding: 30px 20px;
  text-align: center;
  background: rgba(0,0,0,0.2);
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: 16px;
}
.upload-zone:hover {
  border-color: var(--accent-primary);
  background: rgba(124, 92, 252, 0.05);
}
.upload-text {
  font-weight: 500;
  color: var(--text-main);
  opacity: 0.9;
}

.creative-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.creative-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
}
.creative-item:hover {
  background: rgba(255, 255, 255, 0.06);
}
.creative-item.active {
  border-color: var(--accent-primary);
  background: rgba(124, 92, 252, 0.1);
  box-shadow: 0 0 12px rgba(124, 92, 252, 0.2);
}
.creative-thumb {
  width: 44px;
  height: 44px;
  object-fit: cover;
  border-radius: 4px;
  background: #000;
}
.creative-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  font-size: 0.8rem;
}
.creative-name {
  font-weight: 500;
  color: var(--text-main);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.creative-status.analyzing { color: #f39c12; }
.creative-status.analyzed { color: #27ae60; }
.creative-status.error { color: #e74c3c; }

.creative-remove {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  opacity: 0;
  transition: opacity 0.2s, color 0.2s;
}
.creative-item:hover .creative-remove { opacity: 1; }
.creative-remove:hover { color: #e74c3c; }

.btn-primary {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--accent-primary), #5a3ce0);
  color: var(--text-main);
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.2s, filter 0.2s;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover:not(:disabled) {
  filter: brightness(1.1);
  box-shadow: 0 0 25px rgba(124, 92, 252, 0.4);
}
.btn-primary:active:not(:disabled) {
  transform: scale(0.98);
}
.btn-primary.pulse-btn {
  animation: btn-glow-pulse 2s infinite ease-in-out;
}
@keyframes btn-glow-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(124, 92, 252, 0.2); transform: scale(1); }
  50% { box-shadow: 0 0 40px rgba(124, 92, 252, 0.8), 0 0 10px rgba(0, 212, 255, 0.5); transform: scale(1.02); }
}
.btn-primary:disabled {
  background: rgba(255, 255, 255, 0.1);
  box-shadow: none;
  color: rgba(255, 255, 255, 0.3);
  cursor: not-allowed;
}

/* Hemisphere & Breakdown text */
.box-content-centered {
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
}
.placeholder-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-align: center;
  margin: auto;
}

.hemi-row {
  display: flex;
  justify-content: space-between;
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--text-main);
  align-items: center;
}
.hemi-label {
  font-weight: 500;
  color: var(--text-muted);
}
/* Hemisphere Headers Premium */
.hemi-header-premium {
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.03);
  border-left: 3px solid var(--accent-main);
  border-radius: 4px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  overflow: hidden;
  margin-bottom: 24px;
}
.hemi-header-premium::after {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  background: linear-gradient(90deg, rgba(255,255,255,0.05) 0%, transparent 100%);
  pointer-events: none;
}
.hemi-label-main {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.hemi-val {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--text-main);
  text-shadow: 0 0 15px rgba(255,255,255,0.2);
}

/* Insights Carousel */
.insights-carousel-container {
  position: relative;
  width: 100%;
}
.insights-carousel {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  gap: 8px;
  padding: 4px 0;
}
.insights-carousel::-webkit-scrollbar { display: none; }
.box-content-grey {
  padding: 12px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.05);
}
.insight-card {
  flex: 0 0 100%;
  scroll-snap-align: start;
  min-width: 0;
  box-sizing: border-box;
}
.carousel-nav {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: 8px;
}
.carousel-num {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
  background: rgba(255,255,255,0.05);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid transparent;
}
.carousel-num.active {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border-color: rgba(255,255,255,0.4);
}

/* Insights Breakdown */
.section-title {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}
.insights-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.insight-text {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--text-main);
  letter-spacing: 0.01em;
}
.insight-item {
  background: rgba(255, 255, 255, 0.04);
  padding: 10px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent-primary);
  font-size: 0.75rem;
  color: var(--text-main);
}
.insight-highlight {
  font-weight: 600;
  color: var(--accent-secondary);
}

.score-bars-compact {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 14px;
}

.score-bar-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.score-bar-item.disabled {
  opacity: 0.2;
}
.score-bar-item > * {
  pointer-events: none; /* Prevents children from eating the click event */
}

.score-bar-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.score-bar-name {
  font-weight: 500;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.region-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}
.score-bar-value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
}
.score-bar-track {
  height: 6px;
  background: rgba(0,0,0,0.5);
  border-radius: 3px;
  overflow: hidden;
}
.score-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 0 10px currentcolor;
}
.score-bar-reason {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.35;
  margin-top: 2px;
  opacity: 0.9;
}

/* Sidebar Footer */
.sidebar-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  font-size: 0.8rem;
  padding-top: 8px;
}
.api-status {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.02em;
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #27ae60;
  box-shadow: 0 0 8px #27ae60;
}
.status-dot.loading { background: #f39c12; box-shadow: 0 0 8px #f39c12; animation: pulse 1s infinite alternate; }
.status-dot.error { background: #e74c3c; box-shadow: 0 0 8px #e74c3c; }

.btn-text {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.05em;
  font-family: var(--font-mono);
}
.btn-text:hover { 
  color: var(--accent-secondary);
  text-shadow: 0 0 8px rgba(0, 212, 255, 0.4);
}

/* ─── Main Canvas Area ──────────────────────────────────────── */
.main-canvas-area {
  flex: 1;
  position: relative;
  background: radial-gradient(ellipse at 50% 45%, rgba(20,14,50,0.6) 0%, var(--bg-main) 70%);
  overflow: hidden;
}

.brain-canvas-container {
  width: 100%;
  height: 100%;
  position: relative;
}
canvas {
  display: block;
}

/* ─── Floating Elements ───────────────────────────────── */
.brain-labels {
  position: absolute;
  inset: 0;
  pointer-events: none; /* Let clicks pass through to canvas */
}
.brain-label {
  position: absolute;
  pointer-events: auto;
  background: rgba(10, 10, 22, 0.82);
  backdrop-filter: blur(10px);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  color: var(--text-main);
  box-shadow: var(--shadow-md);
  transition: opacity 0.35s ease, border-color 0.2s;
  max-width: 220px;
  min-width: 140px;
}
.brain-label:hover {
  border-color: rgba(255,255,255,0.25);
}
.brain-label-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 6px;
}
.brain-label-val {
  font-weight: 700;
  font-size: 0.82rem;
  white-space: nowrap;
}
.brain-label-note {
  font-size: 0.72rem;
  color: #8b92a5;
  line-height: 1.45;
  padding-left: 8px;
}

/* Hover Tooltip */
.brain-tooltip {
  position: absolute;
  background: var(--text-main);
  color: var(--text-inverse);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  pointer-events: none;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  z-index: 100;
}
.tooltip-region { font-weight: 600; }
.tooltip-score { margin-left: 8px; color: var(--accent-primary); }

/* CTA Box */
.cta-box {
  position: absolute;
  bottom: 40px;
  right: 40px;
  background: var(--bg-panel);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 24px;
  border-radius: var(--radius-md);
  max-width: 380px;
  font-size: 0.95rem;
  line-height: 1.5;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  text-align: left;
}
.cta-link {
  display: inline-block;
  margin-top: 14px;
  color: var(--accent-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: color 0.2s;
}
.cta-link:hover {
  color: #fff;
}

/* ─── Canvas empty / drag states ─────────────────────────── */
.canvas-drop-hint {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  pointer-events: none;
  transition: opacity 0.3s;
}
.canvas-drop-hint .hint-icon {
  font-size: 3rem;
  opacity: 0.18;
}
.canvas-drop-hint .hint-text {
  color: rgba(255,255,255,0.2);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.04em;
}
.canvas-drop-hint .hint-sub {
  color: rgba(255,255,255,0.1);
  font-size: 0.78rem;
}
.brain-canvas-container.drag-over {
  outline: 2px dashed var(--accent-primary);
  outline-offset: -8px;
  background: rgba(124, 92, 252, 0.04);
}

@keyframes pulse {
  0%   { transform: scale(0.85); opacity: 0.5; }
  100% { transform: scale(1.15); opacity: 1;   }
}