/* ==========================================================================
   NEUROSCAN AI — Production Clinical AI Workstation Design System
   ========================================================================== */

:root {
  /* Colors */
  --bg-primary: #070B12;
  --bg-secondary: #0D1420;
  --bg-card: #111A27;
  --bg-elevated: #162231;
  --border-color: #243447;
  --border-highlight: #344861;

  /* Accents */
  --accent-cyan: #39D5FF;
  --accent-purple: #7C6CFF;
  --accent-gradient: linear-gradient(135deg, #39D5FF 0%, #7C6CFF 100%);
  --cyan-glow: 0 0 16px rgba(57, 213, 255, 0.25);
  --purple-glow: 0 0 16px rgba(124, 108, 255, 0.25);

  /* Status Colors */
  --status-success: #32D583;
  --status-warning: #FFB547;
  --status-danger: #FF5C6C;
  --status-info: #39D5FF;

  /* Class Specific Accents */
  --color-glioma: #FF5C6C;
  --color-meningioma: #FFB547;
  --color-pituitary: #7C6CFF;
  --color-notumor: #32D583;

  /* Typography */
  --text-primary: #F5F7FA;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  
  --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Sizing & Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --topbar-height: 60px;
  --sidebar-width: 220px;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-primary: #F1F5F9;
  --bg-secondary: #FFFFFF;
  --bg-card: #FFFFFF;
  --bg-elevated: #F8FAFC;
  --border-color: #CBD5E1;
  --border-highlight: #94A3B8;

  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #64748B;

  --accent-cyan: #0284C7;
  --accent-purple: #6366F1;
  --accent-gradient: linear-gradient(135deg, #0284C7 0%, #6366F1 100%);
  --cyan-glow: 0 0 16px rgba(2, 132, 199, 0.2);
  --purple-glow: 0 0 16px rgba(99, 102, 241, 0.2);

  --status-success: #16A34A;
  --status-warning: #D97706;
  --status-danger: #DC2626;
  --status-info: #0284C7;
}

/* Base Resets & Global Hidden Enforcer */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

[hidden] {
  display: none !important;
}

html, body {
  width: 100%;
  min-height: 100vh;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Typography Utilities */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: -0.01em;
}

.text-cyan { color: var(--accent-cyan) !important; }
.text-purple { color: var(--accent-purple) !important; }
.text-green { color: var(--status-success) !important; }
.text-yellow { color: var(--status-warning) !important; }
.text-danger { color: var(--status-danger) !important; }
.text-truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Ambient Background Overlays */
.ambient-grid {
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(36, 52, 71, 0.15) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(36, 52, 71, 0.15) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.ambient-glow {
  position: fixed;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(140px);
  opacity: 0.12;
  pointer-events: none;
  z-index: 0;
}
.glow-cyan { top: -100px; left: -100px; background: var(--accent-cyan); }
.glow-purple { bottom: -100px; right: -100px; background: var(--accent-purple); }

/* Main Shell */
.app-layout {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  z-index: 1;
}

/* ==========================================================================
   TOP NAVIGATION
   ========================================================================== */
.top-nav {
  height: var(--topbar-height);
  background-color: rgba(13, 20, 32, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}

.brand-symbol {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  box-shadow: 0 0 10px rgba(57, 213, 255, 0.15);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #FFF;
}
.brand-highlight {
  color: var(--accent-cyan);
}

.brand-subtitle {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.lab-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(57, 213, 255, 0.08);
  border: 1px solid rgba(57, 213, 255, 0.25);
  padding: 3px 8px;
  border-radius: 100px;
}

.pulse-dot {
  width: 6px;
  height: 6px;
  background-color: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: pulseGlow 2s infinite ease-in-out;
}
@keyframes pulseGlow {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.lab-badge-text {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--accent-cyan);
}

.nav-center {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-card);
}

.nav-link.active {
  color: var(--accent-cyan);
  background: rgba(57, 213, 255, 0.08);
  border-color: rgba(57, 213, 255, 0.2);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.system-status-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 11px;
}

.status-indicator {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}
.status-indicator.online {
  background: var(--status-success);
  box-shadow: 0 0 6px var(--status-success);
}
.status-indicator.offline {
  background: var(--status-danger);
  box-shadow: 0 0 6px var(--status-danger);
}

.status-label {
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
}

.telemetry-chip {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 10px;
  color: var(--accent-cyan);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #050B14;
  font-weight: 600;
  box-shadow: 0 2px 10px rgba(57, 213, 255, 0.2);
}
.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 16px rgba(57, 213, 255, 0.4);
}
.btn-primary:active {
  transform: translateY(1px);
}

.btn-primary-sm {
  background: var(--accent-gradient);
  color: #050B14;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-fast);
}
.btn-primary-sm:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 12px rgba(57, 213, 255, 0.35);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}
.btn-secondary:hover {
  background: var(--bg-elevated);
  border-color: var(--border-highlight);
}

.btn-secondary-sm {
  background: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  font-size: 11px;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.btn-secondary-sm:hover {
  color: var(--text-primary);
  background: var(--bg-elevated);
}

.btn-block {
  width: 100%;
}

.btn-link {
  background: transparent;
  border: none;
  color: var(--accent-cyan);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
}
.btn-link:hover {
  text-decoration: underline;
}

.btn-icon {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}
.btn-icon:hover {
  color: var(--text-primary);
  border-color: var(--border-highlight);
}

/* Theme Toggle Button */
.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
  transition: var(--transition-fast);
}
.theme-toggle-btn:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  background: var(--bg-elevated);
}

.theme-icon.sun-icon {
  display: none;
}
.theme-icon.moon-icon {
  display: block;
}

[data-theme="light"] .theme-icon.sun-icon {
  display: block;
  color: #D97706;
}
[data-theme="light"] .theme-icon.moon-icon {
  display: none;
}

/* Light Theme Component Overrides */
[data-theme="light"] .top-nav {
  background: #FFFFFF;
  border-bottom: 1px solid #CBD5E1;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .sidebar {
  background: #FFFFFF;
  border-right: 1px solid #CBD5E1;
}

[data-theme="light"] .card,
[data-theme="light"] .metric-card,
[data-theme="light"] .dropzone-card,
[data-theme="light"] .overview-showcase-card,
[data-theme="light"] .preset-samples-card,
[data-theme="light"] .model-telemetry-box {
  background: #FFFFFF;
  border-color: #CBD5E1;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .sample-scan-btn,
[data-theme="light"] .preset-sample-box,
[data-theme="light"] .sidebar-preset-item {
  background: #F8FAFC;
  border-color: #CBD5E1;
}

[data-theme="light"] .sample-scan-btn:hover,
[data-theme="light"] .preset-sample-box:hover,
[data-theme="light"] .sidebar-preset-item:hover {
  background: #F0F9FF;
  border-color: var(--accent-cyan);
}

[data-theme="light"] .view-title {
  color: #0F172A;
}

[data-theme="light"] .card-title,
[data-theme="light"] .sample-name,
[data-theme="light"] .cta-title,
[data-theme="light"] .dropzone-title {
  color: #0F172A;
}

[data-theme="light"] .data-table th {
  background: #F8FAFC;
  color: #475569;
  border-bottom: 1px solid #CBD5E1;
}

[data-theme="light"] .data-table td {
  border-bottom: 1px solid #E2E8F0;
  color: #334155;
}

[data-theme="light"] .data-table tr:hover td {
  background-color: #F1F5F9;
}

[data-theme="light"] .ambient-glow,
[data-theme="light"] .ambient-grid {
  opacity: 0.15;
}

/* ==========================================================================
   LAYOUT: SIDEBAR & MAIN BODY
   ========================================================================== */
.main-body-container {
  display: flex;
  flex: 1;
  min-height: calc(100vh - var(--topbar-height));
}

.sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 16px 12px;
  flex-shrink: 0;
}

.sidebar-section-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 0 8px 8px 8px;
}

.sidebar-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
  text-align: left;
}

.sidebar-item:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

.sidebar-item.active {
  background: rgba(57, 213, 255, 0.08);
  border-color: rgba(57, 213, 255, 0.2);
  color: var(--accent-cyan);
  font-weight: 600;
}

/* Sidebar Presets Drawer (Fills Empty Gap) */
.sidebar-presets-section {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
}

.sidebar-presets-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-preset-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  color: var(--text-secondary);
  font-size: 11px;
  font-family: var(--font-body);
  text-align: left;
}
.sidebar-preset-item:hover {
  border-color: var(--accent-cyan);
  background: rgba(57, 213, 255, 0.08);
  color: var(--text-primary);
}

.preset-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}
.preset-dot.danger { background: var(--status-danger); }
.preset-dot.warning { background: var(--status-warning); }
.preset-dot.purple { background: var(--accent-purple); }
.preset-dot.success { background: var(--status-success); }

.preset-lbl {
  flex: 1;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.preset-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  background: var(--bg-elevated);
  padding: 1px 4px;
  border-radius: 3px;
  color: var(--text-muted);
}

.sidebar-footer {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.model-telemetry-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px;
}

.telemetry-header {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.telemetry-dot {
  width: 6px;
  height: 6px;
  background: var(--status-success);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--status-success);
}

.telemetry-meta {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 10px;
  color: var(--text-muted);
}
.telemetry-meta strong {
  color: var(--text-secondary);
}
.text-success {
  color: var(--status-success) !important;
}

/* ==========================================================================
   MAIN CONTENT AREA & TABS
   ========================================================================== */
.main-content {
  flex: 1;
  padding: 24px 28px;
  background-color: var(--bg-primary);
  overflow-y: auto;
}

.tab-view {
  display: none;
  animation: fadeIn 0.2s ease-in-out;
}
.tab-view.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* View Header */
.view-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 20px;
}

.view-title {
  font-size: 24px;
  font-weight: 700;
  color: #FFF;
  letter-spacing: -0.02em;
}

.view-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.view-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Banner */
.research-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(57, 213, 255, 0.05);
  border: 1px solid rgba(57, 213, 255, 0.2);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  margin-bottom: 24px;
}
.banner-icon {
  flex-shrink: 0;
  display: flex;
}
.banner-content {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.4;
}
.banner-content strong {
  color: var(--accent-cyan);
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px 20px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.card-desc {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.card-sub-mono {
  font-size: 11px;
  color: var(--text-muted);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
}

.badge-cyan { background: rgba(57, 213, 255, 0.12); color: var(--accent-cyan); border: 1px solid rgba(57, 213, 255, 0.25); }
.badge-purple { background: rgba(124, 108, 255, 0.12); color: var(--accent-purple); border: 1px solid rgba(124, 108, 255, 0.25); }
.badge-success { background: rgba(50, 213, 131, 0.12); color: var(--status-success); border: 1px solid rgba(50, 213, 131, 0.25); }
.badge-warning { background: rgba(255, 181, 71, 0.12); color: var(--status-warning); border: 1px solid rgba(255, 181, 71, 0.25); }
.badge-danger { background: rgba(255, 92, 108, 0.12); color: var(--status-danger); border: 1px solid rgba(255, 92, 108, 0.25); }
.badge-secondary { background: var(--bg-elevated); color: var(--text-secondary); border: 1px solid var(--border-color); }

/* ==========================================================================
   VIEW 1: OVERVIEW METRIC CARDS & GRIDS
   ========================================================================== */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.metrics-grid.metrics-bottom-row {
  margin-top: 24px;
  margin-bottom: 0;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.metric-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.metric-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.metric-icon-wrap {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
}
.metric-icon-wrap.cyan { background: rgba(57, 213, 255, 0.1); color: var(--accent-cyan); border-color: rgba(57, 213, 255, 0.2); }
.metric-icon-wrap.purple { background: rgba(124, 108, 255, 0.1); color: var(--accent-purple); border-color: rgba(124, 108, 255, 0.2); }
.metric-icon-wrap.green { background: rgba(50, 213, 131, 0.1); color: var(--status-success); border-color: rgba(50, 213, 131, 0.2); }
.metric-icon-wrap.yellow { background: rgba(255, 181, 71, 0.1); color: var(--status-warning); border-color: rgba(255, 181, 71, 0.2); }

.metric-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.metric-footer {
  font-size: 11px;
  color: var(--text-muted);
}

/* ==========================================================================
   VIEW 1: 5 CLINICAL BENCHMARK MRI SHOWCASE (LARGE & CRISP)
   ========================================================================== */
.overview-showcase-card {
  margin-bottom: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  position: relative;
}

.badge-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sample-scans-showcase {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.sample-scan-btn {
  display: flex;
  flex-direction: column;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 10px;
  cursor: grab;
  transition: var(--transition-normal);
  text-align: left;
  box-sizing: border-box;
  width: 100%;
}
.sample-scan-btn:hover {
  border-color: var(--accent-cyan);
  background: rgba(57, 213, 255, 0.06);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}
.sample-scan-btn:active {
  cursor: grabbing;
}

.sample-thumb-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  min-height: 130px;
  border-radius: 8px;
  overflow: hidden;
  background-color: #000;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.sample-scan-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
  background-color: #000;
}
.sample-scan-btn:hover .sample-scan-thumb {
  transform: scale(1.06);
}

.thumb-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 2;
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
}

.thumb-drag-indicator {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 2;
  font-size: 10px;
  background: rgba(0, 0, 0, 0.75);
  color: var(--text-secondary);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  font-family: var(--font-mono);
  backdrop-filter: blur(4px);
}

.thumb-reticle {
  position: absolute;
  width: 8px;
  height: 8px;
  border: 1px solid var(--accent-cyan);
  opacity: 0.6;
  z-index: 2;
  pointer-events: none;
}
.thumb-reticle.tr { top: 6px; right: 6px; border-left: none; border-bottom: none; }
.thumb-reticle.bl { bottom: 6px; left: 6px; border-right: none; border-top: none; }

.sample-scan-info {
  padding-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1;
}

.sample-name {
  font-size: 13px;
  font-weight: 700;
  color: #FFF;
  letter-spacing: -0.01em;
}

.sample-meta {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.3;
}

.sample-cta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 11px;
  font-weight: 600;
  color: var(--accent-cyan);
}
.sample-cta-row .cta-arrow {
  transition: transform 0.2s ease;
}
.sample-scan-btn:hover .cta-arrow {
  transform: translateX(3px);
}

/* ==========================================================================
   LOWER SECTION: RECENT STUDIES & QUICK CTA
   ========================================================================== */
.overview-bottom-layout {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 20px;
  align-items: stretch;
}

.overview-cta-card {
  display: flex;
  align-items: center;
  background: linear-gradient(145deg, rgba(22, 34, 49, 0.7), rgba(13, 20, 31, 0.9));
  border: 1px solid rgba(57, 213, 255, 0.2);
}

.cta-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}

.cta-icon-glow {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: rgba(57, 213, 255, 0.1);
  border: 1px solid rgba(57, 213, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 16px rgba(57, 213, 255, 0.2);
}

.cta-title {
  font-size: 16px;
  font-weight: 700;
  color: #FFF;
}

.cta-desc {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Tables */
.recent-table-wrap, .table-responsive {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.data-table th {
  text-align: left;
  padding: 8px 12px;
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(36, 52, 71, 0.4);
  color: var(--text-secondary);
  vertical-align: middle;
}

.data-table tr:hover td {
  background-color: rgba(22, 34, 49, 0.5);
  color: var(--text-primary);
}

/* ==========================================================================
   VIEW 2: NEW SCAN UPLOAD & 5-SAMPLE FILMSTRIP TRAY
   ========================================================================== */
.upload-container {
  max-width: 960px;
  margin: 0 auto;
}

.dropzone-card {
  background: var(--bg-card);
  border: 2px dashed var(--border-highlight);
  border-radius: var(--radius-lg);
  padding: 38px 28px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-normal);
  margin-bottom: 20px;
  position: relative;
}

.dropzone-card:hover, .dropzone-card.drag-over {
  border-color: var(--accent-cyan);
  background: rgba(57, 213, 255, 0.04);
  box-shadow: 0 0 24px rgba(57, 213, 255, 0.15);
}

.dropzone-icon-glow {
  width: 60px;
  height: 60px;
  margin: 0 auto 12px;
  background: rgba(57, 213, 255, 0.08);
  border: 1px solid rgba(57, 213, 255, 0.25);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 16px rgba(57, 213, 255, 0.2);
}

.dropzone-title {
  font-size: 18px;
  font-weight: 600;
  color: #FFF;
  margin-bottom: 4px;
}

.dropzone-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.dropzone-formats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 16px;
}

.format-pill {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
  color: var(--text-secondary);
}

.format-hint {
  font-size: 11px;
  color: var(--text-muted);
}

/* 5 Preset Samples Tray */
.preset-samples-card {
  margin-bottom: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
}

.preset-samples-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.preset-sample-box {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  cursor: grab;
  transition: var(--transition-fast);
  user-select: none;
}
.preset-sample-box:hover {
  border-color: var(--accent-cyan);
  background: rgba(57, 213, 255, 0.05);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
}
.preset-sample-box:active {
  cursor: grabbing;
}

.preset-sample-preview-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  background: #000;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.preset-sample-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.preset-badge {
  position: absolute;
  top: 4px;
  left: 4px;
  font-size: 8px;
  font-weight: 700;
  padding: 1px 4px;
  border-radius: 3px;
  text-transform: uppercase;
}

.drag-handle-hint {
  position: absolute;
  bottom: 4px;
  right: 4px;
  background: rgba(7, 11, 18, 0.85);
  border: 1px solid var(--border-color);
  font-size: 8px;
  padding: 1px 4px;
  border-radius: 3px;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

.preset-sample-details {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.preset-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.preset-sub {
  font-size: 9px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.btn-sample-run {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--accent-cyan);
  font-size: 10px;
  font-weight: 600;
  padding: 4px 6px;
  border-radius: 4px;
  cursor: pointer;
  width: 100%;
  transition: var(--transition-fast);
}
.btn-sample-run:hover {
  background: var(--accent-cyan);
  color: #000;
  border-color: var(--accent-cyan);
}

/* Dropzone Preview Stage */
.dropzone-preview-stage {
  display: flex;
  align-items: center;
  gap: 24px;
  text-align: left;
  cursor: default;
}

.stage-img-wrap {
  position: relative;
  width: 160px;
  height: 160px;
  background: #000;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}

.stage-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.preview-stage-right {
  flex: 1;
}

.stage-info-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.stage-filename {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.stage-meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
}

.stage-meta-item {
  display: flex;
  flex-direction: column;
}

.stage-meta-label {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.stage-meta-val {
  font-size: 11px;
  color: var(--text-primary);
}

.stage-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-glow {
  box-shadow: 0 0 16px rgba(57, 213, 255, 0.35);
}

.upload-guidelines-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.guide-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
}

.guide-num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--accent-cyan);
  margin-bottom: 4px;
}

.guide-card h4 {
  font-size: 12px;
  margin-bottom: 3px;
}

.guide-card p {
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* ==========================================================================
   VIEW 3: WORKSPACE (3-PANEL RADIOLOGY WORKSTATION)
   ========================================================================== */
.workspace-layout {
  display: grid;
  grid-template-columns: 240px 1fr 300px;
  gap: 16px;
  height: calc(100vh - var(--topbar-height) - 48px);
}

.panel {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.panel-header {
  height: 44px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  flex-shrink: 0;
}

.panel-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.panel-tag span {
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

.panel-content {
  padding: 14px;
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Left Study Panel */
.study-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  padding: 10px;
  border-radius: var(--radius-sm);
}

.study-thumb-box {
  position: relative;
  width: 48px;
  height: 48px;
  background: #000;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  overflow: hidden;
  flex-shrink: 0;
}

.study-thumb-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.study-badge-floating {
  position: absolute;
  bottom: 0;
  right: 0;
  background: rgba(57, 213, 255, 0.85);
  color: #000;
  font-size: 7px;
  font-weight: 700;
  padding: 1px 3px;
  border-top-left-radius: 3px;
}

.study-id-label {
  font-size: 9px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.study-id-val {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
}

.meta-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
}

.meta-k { color: var(--text-muted); }
.meta-v { color: var(--text-primary); font-weight: 500; }

.status-pill {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
}
.status-ready { background: rgba(50, 213, 131, 0.12); color: var(--status-success); border: 1px solid rgba(50, 213, 131, 0.25); }

/* Timeline Pipeline */
.timeline-box {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px;
}

.timeline-title {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.timeline-steps {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.timeline-step {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--text-muted);
}
.timeline-step.done {
  color: var(--text-secondary);
}
.timeline-step.done .step-icon {
  color: var(--accent-cyan);
  border-color: rgba(57, 213, 255, 0.4);
}

.step-icon {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  font-weight: 700;
}

.panel-bottom-actions {
  margin-top: auto;
}

/* ==========================================================================
   CENTER MRI VIEWER
   ========================================================================== */
.workspace-center-panel {
  display: flex;
  flex-direction: column;
}

.viewer-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.viewer-controls {
  display: flex;
  align-items: center;
  gap: 4px;
}

.btn-ctrl {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}
.btn-ctrl:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  background: rgba(57, 213, 255, 0.08);
}

.mri-viewport {
  flex: 1;
  background: #000;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Viewport Technical Overlays */
.viewer-grid-overlay {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(57, 213, 255, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(57, 213, 255, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

.viewer-ruler {
  position: absolute;
  pointer-events: none;
  opacity: 0.3;
}
.top-ruler {
  top: 0; left: 0; right: 0; height: 8px;
  background-image: repeating-linear-gradient(to right, #39D5FF, #39D5FF 1px, transparent 1px, transparent 16px);
}
.side-ruler {
  top: 0; left: 0; bottom: 0; width: 8px;
  background-image: repeating-linear-gradient(to bottom, #39D5FF, #39D5FF 1px, transparent 1px, transparent 16px);
}

.mri-canvas-stage {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mri-active-image {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
  transition: transform 0.15s ease, filter 0.15s ease;
  user-select: none;
}

.mri-active-heatmap {
  position: absolute;
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
  pointer-events: none;
  opacity: 0;
  mix-blend-mode: screen;
  transition: opacity 0.2s ease, transform 0.15s ease;
}

/* Viewer Empty State */
.viewer-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 10px;
  padding: 20px;
}
.empty-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}
.empty-sub {
  font-size: 12px;
  color: var(--text-muted);
  max-width: 260px;
  margin-bottom: 6px;
}

/* Precision Reticles */
.reticle {
  position: absolute;
  width: 10px;
  height: 10px;
  border-color: var(--accent-cyan);
  pointer-events: none;
  opacity: 0.7;
}
.reticle.tl { top: 12px; left: 12px; border-top: 2px solid; border-left: 2px solid; }
.reticle.tr { top: 12px; right: 12px; border-top: 2px solid; border-right: 2px solid; }
.reticle.bl { bottom: 12px; left: 12px; border-bottom: 2px solid; border-left: 2px solid; }
.reticle.br { bottom: 12px; right: 12px; border-bottom: 2px solid; border-right: 2px solid; }

.crosshair-center {
  position: absolute;
  width: 14px;
  height: 14px;
  pointer-events: none;
  opacity: 0.2;
}
.crosshair-center::before, .crosshair-center::after {
  content: '';
  position: absolute;
  background: var(--accent-cyan);
}
.crosshair-center::before { top: 0; left: 6px; width: 2px; height: 14px; }
.crosshair-center::after { top: 6px; left: 0; width: 14px; height: 2px; }

/* Laser Scanline Effect */
.laser-scanline {
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: var(--accent-cyan);
  box-shadow: 0 0 12px var(--accent-cyan), 0 0 20px rgba(57, 213, 255, 0.6);
  opacity: 0;
  pointer-events: none;
  z-index: 10;
}
.laser-scanline.active {
  opacity: 1;
  animation: scanMotion 1.4s infinite ease-in-out alternate;
}
@keyframes scanMotion {
  from { top: 5%; }
  to { top: 95%; }
}

/* HUD Overlay Elements */
.hud-top-left, .hud-top-right, .hud-bottom-left, .hud-bottom-right {
  position: absolute;
  font-size: 10px;
  color: rgba(57, 213, 255, 0.7);
  pointer-events: none;
  user-select: none;
  background: rgba(7, 11, 18, 0.6);
  padding: 2px 6px;
  border-radius: 3px;
}
.hud-top-left { top: 12px; left: 28px; }
.hud-top-right { top: 12px; right: 28px; }
.hud-bottom-left { bottom: 12px; left: 28px; }
.hud-bottom-right { bottom: 12px; right: 28px; }

/* Viewer Footer Dock */
.viewer-footer-dock {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 8px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.slice-navigator {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-slice-nav {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 10px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.btn-slice-nav:hover {
  color: var(--text-primary);
  border-color: var(--border-highlight);
}

.slice-counter {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent-cyan);
}

.slice-slider-wrap {
  flex: 1;
  display: flex;
  align-items: center;
}

.custom-range {
  width: 100%;
  accent-color: var(--accent-cyan);
  cursor: pointer;
}

.viewer-adjusters {
  display: flex;
  align-items: center;
  gap: 12px;
}

.adjuster-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.adjuster-label {
  font-size: 9px;
  color: var(--text-muted);
}

.mini-range {
  width: 50px;
  accent-color: var(--accent-cyan);
  cursor: pointer;
}

/* ==========================================================================
   RIGHT PANEL: AI ANALYSIS READOUT
   ========================================================================== */
.status-indicator-chip {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
  font-weight: 600;
  color: var(--status-success);
}
.status-indicator-chip .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--status-success);
  box-shadow: 0 0 6px var(--status-success);
}

.verdict-display-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 14px;
}

.verdict-eyebrow {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.verdict-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.verdict-class-name {
  font-size: 22px;
  font-weight: 700;
  color: #FFF;
  text-transform: capitalize;
}

.confidence-gauge-container {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.gauge-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.gauge-label {
  font-size: 9px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.gauge-value {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-cyan);
}

.gauge-track {
  height: 6px;
  background: var(--bg-card);
  border-radius: 100px;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.gauge-fill {
  height: 100%;
  background: var(--accent-gradient);
  border-radius: 100px;
  transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 0 8px rgba(57, 213, 255, 0.4);
}

/* Probability Bars List */
.section-title-sm {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.prob-bars-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.prob-row {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.prob-row-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
}
.prob-class-name { font-weight: 500; color: var(--text-secondary); text-transform: capitalize; }
.prob-class-val { font-weight: 600; color: var(--text-primary); }

.prob-bar-track {
  height: 5px;
  background: var(--bg-elevated);
  border-radius: 100px;
  overflow: hidden;
  border: 1px solid rgba(36, 52, 71, 0.5);
}

.prob-bar-fill {
  height: 100%;
  border-radius: 100px;
  transition: width 0.5s ease-out;
}
.fill-glioma { background: var(--color-glioma); }
.fill-meningioma { background: var(--color-meningioma); }
.fill-pituitary { background: var(--color-pituitary); }
.fill-notumor { background: var(--color-notumor); }

/* Quick CAM Peek */
.quick-cam-peek {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px;
}

.peek-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.peek-img-box {
  position: relative;
  width: 100%;
  height: 80px;
  background: #000;
  border-radius: 4px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.peek-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.peek-layer-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  background: rgba(7, 11, 18, 0.8);
  border: 1px solid var(--border-color);
  font-size: 8px;
  padding: 1px 4px;
  border-radius: 3px;
  color: var(--accent-cyan);
}

.workspace-action-group {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* ==========================================================================
   VIEW 4: EXPLAINABILITY (3-COLUMN COMPARATIVE VIEW)
   ========================================================================== */
.explainability-tri-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.explain-card {
  display: flex;
  flex-direction: column;
}

.explain-stage-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  background: #000;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.explain-stage-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.overlay-stage {
  position: relative;
}
.overlay-base-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.overlay-cam-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0.65;
  mix-blend-mode: screen;
}

.heatmap-legend {
  position: absolute;
  bottom: 8px;
  left: 8px;
  right: 8px;
  background: rgba(7, 11, 18, 0.85);
  border: 1px solid var(--border-color);
  padding: 4px 8px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 9px;
}

.legend-bar {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: linear-gradient(to right, #001f3f, #39D5FF, #7C6CFF, #FF5C6C);
}

.explain-meta-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 10px;
  color: var(--text-muted);
}

.explain-opacity-ctrl {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  justify-content: space-between;
}

.explain-guide-card {
  margin-top: 16px;
}

.explain-guide-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.guide-lead-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 4px;
}

.guide-item p {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ==========================================================================
   VIEW 5: MODEL LAB
   ========================================================================== */
.model-lab-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

.spec-table-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.spec-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(36, 52, 71, 0.4);
  font-size: 12px;
}

.spec-k { color: var(--text-muted); }
.spec-v { color: var(--text-primary); font-weight: 500; }

.benchmark-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

.bench-stat-box {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px;
  display: flex;
  flex-direction: column;
}

.bench-label { font-size: 9px; font-weight: 700; letter-spacing: 0.06em; color: var(--text-muted); }
.bench-val { font-size: 22px; font-weight: 700; margin: 4px 0 2px; }
.bench-sub { font-size: 10px; color: var(--text-muted); }

.class-chips-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.class-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-size: 11px;
}

.chip-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.dot-glioma { background: var(--color-glioma); }
.dot-meningioma { background: var(--color-meningioma); }
.dot-notumor { background: var(--color-notumor); }
.dot-pituitary { background: var(--color-pituitary); }

/* Architecture Flow Diagram */
.arch-flow-diagram {
  display: flex;
  align-items: center;
  justify-content: space-between;
  overflow-x: auto;
  padding: 16px 0;
  gap: 10px;
}

.arch-node {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  min-width: 140px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.arch-node.highlight-node {
  border-color: var(--accent-cyan);
  background: rgba(57, 213, 255, 0.05);
}
.arch-node.success-node {
  border-color: var(--status-success);
  background: rgba(50, 213, 131, 0.05);
}

.arch-node-badge {
  font-size: 8px;
  font-weight: 700;
  color: var(--accent-cyan);
  letter-spacing: 0.08em;
}

.arch-node-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-primary);
}

.arch-node-sub {
  font-size: 9px;
  color: var(--text-muted);
}

.arch-arrow {
  color: var(--text-muted);
  font-size: 16px;
  font-weight: 700;
}

/* ==========================================================================
   VIEW 6: SCAN HISTORY
   ========================================================================== */
.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.search-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
  flex: 1;
  max-width: 320px;
}

.search-input-wrap svg {
  position: absolute;
  left: 10px;
  color: var(--text-muted);
}

.search-input-wrap input {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  padding: 7px 12px 7px 32px;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 12px;
}
.search-input-wrap input:focus {
  outline: none;
  border-color: var(--accent-cyan);
}

.filter-pills {
  display: flex;
  gap: 6px;
}

.filter-pill {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 100px;
  cursor: pointer;
}
.filter-pill.active {
  background: rgba(57, 213, 255, 0.12);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  font-weight: 600;
}

.empty-table-state {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

/* ==========================================================================
   VIEW 7: FORMAL RESEARCH REPORT (PRINT & SCREEN)
   ========================================================================== */
.report-sheet-container {
  background: #0B111A;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px 36px;
  max-width: 900px;
  margin: 0 auto;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.report-sheet-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.report-logo-text {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #FFF;
}
.report-logo-text .accent { color: var(--accent-cyan); }

.report-sheet-sub {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-top: 2px;
}

.report-meta-box {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 11px;
  color: var(--text-secondary);
  text-align: right;
}
.report-meta-box strong { color: var(--text-primary); }

.report-divider {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 20px 0;
}

.report-two-col {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 28px;
  margin-bottom: 24px;
}

.report-images-pair {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.report-img-card {
  background: #000;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.report-img-label {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  color: var(--accent-cyan);
}

.report-img-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  background: #000;
}

.report-section-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.report-verdict-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 14px;
  margin-bottom: 18px;
}

.rep-label-muted {
  font-size: 9px;
  color: var(--text-muted);
  font-weight: 600;
}

.rep-verdict-name {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: capitalize;
  margin: 2px 0 6px;
}

.rep-conf-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-secondary);
}
.rep-conf-row strong {
  font-size: 15px;
  color: var(--accent-cyan);
}

.report-prob-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
  margin-bottom: 18px;
}

.report-prob-table th {
  text-align: left;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 9px;
}

.report-prob-table td {
  padding: 6px 8px;
  border-bottom: 1px solid rgba(36, 52, 71, 0.4);
}

.report-telemetry-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 10px;
  border-radius: var(--radius-sm);
  font-size: 10px;
  color: var(--text-muted);
}
.report-telemetry-grid span { color: var(--text-primary); }

.report-disclaimer-box {
  background: rgba(255, 92, 108, 0.05);
  border: 1px solid rgba(255, 92, 108, 0.25);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.4;
}
.report-disclaimer-box strong { color: var(--status-danger); }

/* ==========================================================================
   VIEW 8: DOCS & ETHICS
   ========================================================================== */
.docs-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 900px;
}

.doc-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.doc-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.disclaimer-callout {
  background: rgba(255, 92, 108, 0.06);
  border-left: 3px solid var(--status-danger);
  padding: 12px 14px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 12px;
  color: var(--text-secondary);
}
.disclaimer-callout strong {
  display: block;
  color: var(--status-danger);
  margin-bottom: 4px;
}

.doc-list {
  padding-left: 20px;
  color: var(--text-secondary);
  font-size: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.doc-list code {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  padding: 1px 4px;
  border-radius: 3px;
  color: var(--accent-cyan);
}

.api-code-block {
  background: #000;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 14px;
  font-size: 11px;
  color: #DDD;
  line-height: 1.5;
  white-space: pre-wrap;
}
.http-verb { color: var(--accent-cyan); font-weight: 700; }
.http-comment { color: var(--text-muted); }

/* ==========================================================================
   AI LOADING MODAL & OVERLAYS (EXPLICIT DISPLAY CONTROLS)
   ========================================================================== */
.loading-modal-backdrop, .modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(7, 11, 18, 0.85);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.15s ease;
}

.loading-modal-backdrop[hidden],
.modal-backdrop[hidden] {
  display: none !important;
}

.loading-modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  width: 100%;
  max-width: 440px;
  text-align: center;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), var(--cyan-glow);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.loading-neural-spinner {
  position: relative;
  width: 72px;
  height: 72px;
  margin-bottom: 20px;
}

.spinner-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid transparent;
}
.ring-outer {
  border-top-color: var(--accent-cyan);
  border-bottom-color: var(--accent-cyan);
  animation: spinClockwise 1.8s linear infinite;
}
.ring-mid {
  inset: 8px;
  border-left-color: var(--accent-purple);
  border-right-color: var(--accent-purple);
  animation: spinCounterClockwise 1.2s linear infinite;
}
.ring-inner {
  inset: 16px;
  border-top-color: #FFF;
  animation: spinClockwise 0.8s linear infinite;
}
.spinner-pulse-center {
  position: absolute;
  inset: 26px;
  background: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent-cyan);
  animation: pulseGlow 1s infinite alternate ease-in-out;
}

@keyframes spinClockwise { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes spinCounterClockwise { from { transform: rotate(0deg); } to { transform: rotate(-360deg); } }

.loading-title {
  font-size: 18px;
  font-weight: 700;
  color: #FFF;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}
.loading-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.loading-steps-list {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
  margin-bottom: 20px;
}

.loading-step-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--text-muted);
}
.loading-step-item.active {
  color: var(--accent-cyan);
  font-weight: 600;
}
.loading-step-item.done {
  color: var(--status-success);
}
.loading-step-item .step-check {
  font-family: var(--font-mono);
  font-weight: 700;
}

.loading-telemetry-dock {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 10px;
  color: var(--text-muted);
}
.loading-telemetry-dock span { color: var(--accent-cyan); font-weight: 600; }

/* Disclaimer Modal */
.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  width: 100%;
  max-width: 520px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
  overflow: hidden;
}

.modal-header {
  padding: 16px 20px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}
.modal-title {
  font-size: 15px;
  font-weight: 700;
  color: #FFF;
}

.btn-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
}
.btn-close:hover { color: #FFF; }

.modal-body {
  padding: 20px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.disclaimer-alert-box {
  background: rgba(255, 92, 108, 0.08);
  border: 1px solid rgba(255, 92, 108, 0.3);
  padding: 12px 14px;
  border-radius: var(--radius-sm);
}
.disclaimer-alert-box strong { color: var(--status-danger); display: block; margin-bottom: 6px; }
.disclaimer-alert-box ul { padding-left: 18px; display: flex; flex-direction: column; gap: 4px; }

.modal-footer {
  padding: 12px 20px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
}

/* Toast Container */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  color: var(--text-primary);
  font-size: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  pointer-events: auto;
  animation: slideInRight 0.2s ease;
}
@keyframes slideInRight { from { transform: translateX(100%); } to { transform: translateX(0); } }

/* ==========================================================================
   PRINT STYLING (REPORT EXPORT)
   ========================================================================== */
@media print {
  body {
    background: #FFF !important;
    color: #000 !important;
  }
  .top-nav, .sidebar, .view-header, .ambient-grid, .ambient-glow, .toast-container {
    display: none !important;
  }
  .main-content {
    padding: 0 !important;
  }
  .tab-view {
    display: none !important;
  }
  #view-reports {
    display: block !important;
  }
  .report-sheet-container {
    background: #FFF !important;
    color: #000 !important;
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    max-width: 100% !important;
  }
  .report-sheet-container * {
    color: #000 !important;
    border-color: #CCC !important;
  }
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 1200px) {
  .sample-scans-showcase {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
  }
  .overview-bottom-layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

@media (max-width: 1100px) {
  .workspace-layout {
    grid-template-columns: 1fr;
    height: auto;
  }
  .explainability-tri-grid {
    grid-template-columns: 1fr;
  }
  .model-lab-grid {
    grid-template-columns: 1fr;
  }
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .preset-samples-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .sidebar {
    display: none;
  }
  .nav-center {
    display: none;
  }
  .metrics-grid {
    grid-template-columns: 1fr;
  }
  .sample-scans-showcase {
    grid-template-columns: 1fr 1fr;
  }
  .upload-guidelines-grid {
    grid-template-columns: 1fr;
  }
  .preset-samples-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ==========================================================================
   3D TUMOR SEGMENTATION WORKSTATION STYLES
   ========================================================================== */

.seg-title-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.sidebar-tag-pill {
  font-size: 9px;
  font-weight: 700;
  padding: 1px 6px;
  margin-left: auto;
  letter-spacing: 0.5px;
}

.seg-presets-card {
  padding: 18px 20px;
  margin-bottom: 20px;
  background: linear-gradient(180deg, rgba(17, 26, 39, 0.95) 0%, rgba(13, 20, 32, 0.95) 100%);
  border: 1px solid var(--border-highlight);
}

.seg-presets-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
  flex-wrap: wrap;
  gap: 10px;
}

.seg-presets-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.seg-preset-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-fast);
  color: var(--text-primary);
}

.seg-preset-card:hover {
  border-color: var(--accent-cyan);
  background: rgba(57, 213, 255, 0.05);
  transform: translateY(-1px);
}

.seg-preset-card.active {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(57, 213, 255, 0.2);
  background: rgba(57, 213, 255, 0.08);
}

.seg-preset-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.seg-preset-dot.danger { background: var(--status-danger); box-shadow: 0 0 8px rgba(255, 92, 108, 0.6); }
.seg-preset-dot.warning { background: var(--status-warning); box-shadow: 0 0 8px rgba(255, 181, 71, 0.6); }
.seg-preset-dot.success { background: var(--status-success); box-shadow: 0 0 8px rgba(50, 213, 131, 0.6); }

.seg-preset-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.seg-preset-title {
  font-weight: 600;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.seg-preset-sub {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.seg-workstation-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 20px;
  align-items: start;
}

.seg-viewer-card {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
}

.seg-card-header {
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-elevated);
  gap: 12px;
  flex-wrap: wrap;
}

.seg-plane-selector,
.seg-viewmode-selector {
  display: flex;
  background: var(--bg-primary);
  padding: 3px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  gap: 3px;
}

.btn-plane,
.btn-mode {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-plane:hover,
.btn-mode:hover {
  color: var(--text-primary);
}

.btn-plane.active,
.btn-mode.active {
  background: var(--accent-cyan);
  color: #070B12;
  font-weight: 600;
  box-shadow: 0 0 8px rgba(57, 213, 255, 0.3);
}

.seg-canvas-container {
  height: 480px;
  min-height: 440px;
  background: #04070D;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.seg-stage-wrap {
  width: 440px;
  height: 440px;
  max-width: 96%;
  max-height: 96%;
  position: relative;
  background: #000;
  border: 1px solid rgba(36, 52, 71, 0.8);
  box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.9);
}

.seg-slice-base {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  image-rendering: pixelated;
}

.seg-slice-overlay,
.seg-slice-gt {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
  transition: opacity 0.15s ease;
  image-rendering: pixelated;
}

.seg-slice-gt {
  filter: hue-rotate(90deg) saturate(1.4);
}

.seg-crosshair {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background:
    linear-gradient(to right, transparent 49.5%, rgba(57, 213, 255, 0.15) 50%, transparent 50.5%),
    linear-gradient(to bottom, transparent 49.5%, rgba(57, 213, 255, 0.15) 50%, transparent 50.5%);
  opacity: 0.7;
}

.seg-hud {
  position: absolute;
  font-size: 10px;
  color: var(--accent-cyan);
  background: rgba(7, 11, 18, 0.85);
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid rgba(57, 213, 255, 0.25);
  pointer-events: none;
  letter-spacing: 0.5px;
}
.seg-hud.top-left { top: 8px; left: 8px; }
.seg-hud.top-right { top: 8px; right: 8px; }
.seg-hud.bottom-left { bottom: 8px; left: 8px; }
.seg-hud.bottom-right { bottom: 8px; right: 8px; }

.seg-loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(7, 11, 18, 0.88);
  backdrop-filter: blur(4px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  z-index: 20;
}

.seg-loading-overlay .spinner {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(57, 213, 255, 0.2);
  border-top-color: var(--accent-cyan);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.seg-empty-overlay {
  position: absolute;
  inset: 0;
  background: rgba(7, 11, 18, 0.92);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 30px;
  gap: 10px;
  z-index: 10;
}
.seg-empty-overlay .empty-icon {
  font-size: 38px;
  margin-bottom: 4px;
}
.seg-empty-overlay h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}
.seg-empty-overlay p {
  font-size: 13px;
  color: var(--text-muted);
  max-width: 320px;
  line-height: 1.5;
}

.seg-footer-dock {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border-color);
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.seg-slice-control-bar {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-icon {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.btn-icon:hover {
  border-color: var(--accent-cyan);
  background: rgba(57, 213, 255, 0.1);
}

.seg-slice-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: var(--text-secondary);
}

.slice-num-input {
  width: 44px;
  background: transparent;
  border: 1px solid var(--border-highlight);
  color: var(--accent-cyan);
  font-weight: 700;
  font-size: 13px;
  border-radius: 4px;
  text-align: center;
  padding: 2px;
}

.seg-dock-adjusters {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.seg-adjuster {
  display: flex;
  align-items: center;
  gap: 8px;
}

.mini-range {
  width: 100px;
  accent-color: var(--accent-cyan);
}

.seg-side-column {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.seg-3d-card {
  padding: 16px;
  background: var(--bg-card);
}

.seg-3d-viewport {
  height: 290px;
  position: relative;
  background: radial-gradient(circle at center, #0e1726 0%, #05080e 100%);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  overflow: hidden;
  cursor: grab;
}

.seg-3d-viewport:active {
  cursor: grabbing;
}

#seg3dCanvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
}

.seg-3d-empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
  color: var(--text-muted);
  font-size: 12px;
  pointer-events: none;
}

.seg-3d-axes-hud {
  position: absolute;
  bottom: 8px;
  left: 10px;
  font-size: 10px;
  color: var(--accent-cyan);
  opacity: 0.75;
  display: flex;
  flex-direction: column;
  gap: 2px;
  pointer-events: none;
}

.seg-3d-controls {
  margin-top: 12px;
}

.seg-region-toggles {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.region-toggle-label {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  user-select: none;
}

.region-chip {
  padding: 4px 10px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 11px;
  transition: all var(--transition-fast);
}

.chip-wt { background: rgba(57, 213, 255, 0.15); color: #39D5FF; border: 1px solid rgba(57, 213, 255, 0.35); }
.chip-tc { background: rgba(255, 92, 108, 0.15); color: #FF5C6C; border: 1px solid rgba(255, 92, 108, 0.35); }
.chip-et { background: rgba(255, 214, 10, 0.15); color: #FFD60A; border: 1px solid rgba(255, 214, 10, 0.35); }

.seg-metrics-card {
  padding: 16px;
  background: var(--bg-card);
}

.seg-vol-table-wrap {
  overflow-x: auto;
  margin-top: 8px;
}

.seg-vol-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.seg-vol-table th {
  text-align: left;
  color: var(--text-muted);
  font-size: 10px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border-color);
  font-family: var(--font-mono);
  letter-spacing: 0.5px;
}

.seg-vol-table td {
  padding: 8px 10px;
  border-bottom: 1px solid rgba(36, 52, 71, 0.5);
  color: var(--text-primary);
}

.region-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
}
.region-badge.badge-wt { background: rgba(57, 213, 255, 0.15); color: #39D5FF; }
.region-badge.badge-tc { background: rgba(255, 92, 108, 0.15); color: #FF5C6C; }
.region-badge.badge-et { background: rgba(255, 214, 10, 0.15); color: #FFD60A; }
.region-badge.badge-ed { background: rgba(48, 176, 199, 0.15); color: #30B0C7; }
.region-badge.badge-ncr { background: rgba(255, 59, 48, 0.15); color: #FF3B30; }

.seg-validation-card {
  background: rgba(13, 20, 32, 0.65);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 14px;
  margin-top: 14px;
}

.validation-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.validation-metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.metric-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 8px 10px;
  border-radius: 6px;
  display: flex;
  flex-direction: column;
}

.metric-box .m-label {
  font-size: 10px;
  color: var(--text-muted);
}

.metric-box .m-val {
  font-size: 15px;
  font-weight: 700;
  color: var(--status-success);
  margin-top: 2px;
}

.validation-note {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 8px;
  text-align: right;
}

@media (max-width: 1024px) {
  .seg-workstation-grid {
    grid-template-columns: 1fr;
  }
  .seg-presets-grid {
    grid-template-columns: 1fr;
  }
}