/* ==========================================================================
   KALLISTO OS - MASTER CONSOLIDATED APPLICATION STYLESHEET
   Includes Design Tokens, White-Label Themes, Components, and Layout Grids
   ========================================================================== */

/* --- 1. DESIGN TOKENS & CLIENT PRESETS --- */
/* ==========================================================================
   KALLISTO OS - REUSABLE WHITE-LABEL DESIGN TOKENS
   Modular, Minimal, Multi-Tenant Design System for UK Small Businesses
   ========================================================================== */

:root {
  /* Default Brand Identity (Kallisto Executive Amber / International Orange) */
  --brand-primary: #ff5d00;
  --brand-primary-hover: #e65300;
  --brand-primary-light: rgba(255, 93, 0, 0.08);
  --brand-primary-border: rgba(255, 93, 0, 0.25);
  
  /* Neutral Canvas & Surfaces */
  --surface-bg: #f8fafc;
  --surface-card: #ffffff;
  --surface-card-hover: #f1f5f9;
  --surface-card-elevated: #ffffff;
  --surface-sidebar: #0f172a;
  --surface-sidebar-hover: #1e293b;
  --surface-sidebar-active: #334155;
  
  /* Semantic High-Contrast Typography */
  --text-primary: #0f172a;     /* Slate 900 (>12:1 contrast) */
  --text-secondary: #334155;   /* Slate 700 (>8:1 contrast) */
  --text-muted: #64748b;       /* Slate 500 (>4.8:1 contrast) */
  --text-inverse: #f8fafc;
  --text-inverse-muted: #94a3b8;
  
  /* Status & Operational Indicators */
  --status-success: #10b981;
  --status-success-bg: #ecfdf5;
  --status-success-text: #065f46;
  --status-warning: #f59e0b;
  --status-warning-bg: #fffbeb;
  --status-warning-text: #92400e;
  --status-danger: #ef4444;
  --status-danger-bg: #fef2f2;
  --status-danger-text: #991b1b;
  --status-info: #0284c7;
  --status-info-bg: #f0f9ff;
  --status-info-text: #075985;
  
  /* Optical Meniscus & Borders */
  --border-subtle: #e2e8f0;
  --border-medium: #cbd5e1;
  --border-focus: var(--brand-primary);
  
  /* Shadows & Elevation */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.08), 0 1px 2px -1px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.08);
  --shadow-card: inset 0 1px 1px 0 rgba(255, 255, 255, 0.9), 0 1px 3px rgba(15, 23, 42, 0.06), 0 10px 24px -8px rgba(15, 23, 42, 0.04);
  
  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  
  /* Typography Scale */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  
  /* Layout Dimensions */
  --sidebar-width: 260px;
  --sidebar-collapsed-width: 72px;
  --header-height: 64px;
  --content-max-width: 1440px;
}

/* ==========================================================================
   CLIENT PRESET THEMES (WHITE-LABEL CUSTOMIZATION)
   ========================================================================== */

/* 1. Cafe & Hospitality Preset: "Bloom & Roast Espresso" */
[data-client-theme="cafe"] {
  --brand-primary: #b45309;          /* Rich Amber Roasted Bean */
  --brand-primary-hover: #92400e;
  --brand-primary-light: rgba(180, 83, 9, 0.08);
  --brand-primary-border: rgba(180, 83, 9, 0.25);
  --surface-bg: #faf7f2;             /* Creamy warm linen canvas */
  --surface-card: #ffffff;
  --surface-sidebar: #1c1917;        /* Warm dark roasted stone */
  --surface-sidebar-hover: #292524;
  --surface-sidebar-active: #44403c;
}

/* 2. Boutique Retail Preset: "The Harrogate Studio" */
[data-client-theme="retail"] {
  --brand-primary: #0284c7;          /* Cobalt Indigo Artisan Dye */
  --brand-primary-hover: #0369a1;
  --brand-primary-light: rgba(2, 132, 199, 0.08);
  --brand-primary-border: rgba(2, 132, 199, 0.25);
  --surface-bg: #f8fafc;
  --surface-card: #ffffff;
  --surface-sidebar: #090d16;        /* Deep obsidian retail slate */
  --surface-sidebar-hover: #131b2e;
  --surface-sidebar-active: #1e293b;
}

/* 3. Professional Advisory & Services Preset: "Soho Growth Partners" */
[data-client-theme="services"] {
  --brand-primary: #4f46e5;          /* Electric Indigo */
  --brand-primary-hover: #4338ca;
  --brand-primary-light: rgba(79, 70, 229, 0.08);
  --brand-primary-border: rgba(79, 70, 229, 0.25);
  --surface-bg: #f5f7fa;
  --surface-card: #ffffff;
  --surface-sidebar: #0f172a;
  --surface-sidebar-hover: #1e293b;
  --surface-sidebar-active: #312e81;
}

/* 4. Gym & Fitness Preset: "Apex Athletic Club" */
[data-client-theme="fitness"] {
  --brand-primary: #84cc16;          /* Electric Lime */
  --brand-primary-hover: #65a30d;
  --brand-primary-light: rgba(132, 204, 22, 0.12);
  --brand-primary-border: rgba(132, 204, 22, 0.35);
  --surface-bg: #f4f4f5;
  --surface-card: #ffffff;
  --surface-sidebar: #09090b;        /* Charcoal Obsidian */
  --surface-sidebar-hover: #18181b;
  --surface-sidebar-active: #27272a;
}

/* 5. Hair & Beauty Salon Preset: "Aura Aesthetics & Spa" */
[data-client-theme="salon"] {
  --brand-primary: #e11d48;          /* Rose Quartz / Luxury Berry */
  --brand-primary-hover: #be123c;
  --brand-primary-light: rgba(225, 29, 72, 0.08);
  --brand-primary-border: rgba(225, 29, 72, 0.25);
  --surface-bg: #fff5f6;             /* Warm Champagne Blush */
  --surface-card: #ffffff;
  --surface-sidebar: #190a14;        /* Deep Amethyst Plum */
  --surface-sidebar-hover: #291423;
  --surface-sidebar-active: #3e1e35;
}

/* 6. Trade Services & Engineering Preset: "Vanguard Electrical & Heating" */
[data-client-theme="trades"] {
  --brand-primary: #d97706;          /* High-Vis Industrial Amber */
  --brand-primary-hover: #b45309;
  --brand-primary-light: rgba(217, 119, 6, 0.08);
  --brand-primary-border: rgba(217, 119, 6, 0.3);
  --surface-bg: #f1f5f9;
  --surface-card: #ffffff;
  --surface-sidebar: #0f172a;        /* Tough Technical Gunmetal */
  --surface-sidebar-hover: #1e293b;
  --surface-sidebar-active: #334155;
}



/* --- 2. COMPONENT LIBRARY --- */
/* ==========================================================================
   KALLISTO OS - REUSABLE UI COMPONENT LIBRARY
   Minimal, Accessible, Distraction-Free Business Controls
   ========================================================================== */

/* 1. Base Reset & Typography Helpers */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body.os-body {
  font-family: var(--font-sans);
  background-color: var(--surface-bg);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
}

/* 2. Layout Structure (Sidebar + Main Content) */
.os-layout {
  display: flex;
  width: 100vw;
  min-height: 100vh;
}

.os-sidebar {
  width: var(--sidebar-width);
  background-color: var(--surface-sidebar);
  color: var(--text-inverse);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 40;
  transition: width 0.2s ease;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.os-sidebar-header {
  height: var(--header-height);
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.os-brand-badge {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: #ffffff;
}

.os-brand-logo {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--brand-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: 800;
  font-family: var(--font-display);
  font-size: 0.875rem;
}

.os-sidebar-nav {
  flex: 1;
  padding: 1rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  overflow-y: auto;
}

.os-nav-section-title {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-inverse-muted);
  padding: 0.75rem 0.5rem 0.25rem;
}

.os-nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.75rem;
  border-radius: var(--radius-md);
  color: var(--text-inverse-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.15s ease;
}

.os-nav-item:hover {
  background-color: var(--surface-sidebar-hover);
  color: #ffffff;
}

.os-nav-item.active {
  background-color: var(--brand-primary);
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.os-nav-item .material-symbols-outlined {
  font-size: 1.25rem;
}

.os-sidebar-footer {
  padding: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.os-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background-color: var(--surface-bg);
}

.os-topbar {
  height: var(--header-height);
  background-color: var(--surface-card);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.75rem;
  position: sticky;
  top: 0;
  z-index: 30;
}

.os-page-content {
  flex: 1;
  padding: 1.75rem;
  max-width: var(--content-max-width);
  width: 100%;
  margin: 0 auto;
}

/* 3. Cards & Surfaces */
.os-card {
  background-color: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 1.5rem;
  position: relative;
}

.os-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.os-card-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.os-card-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 0.125rem;
}

/* 4. Stat & Metric Widgets */
.os-stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.os-stat-card {
  background-color: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.os-stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.os-stat-value {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin: 0.35rem 0;
}

.os-stat-trend {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  font-weight: 600;
}

.os-stat-trend.positive { color: var(--status-success); }
.os-stat-trend.negative { color: var(--status-danger); }
.os-stat-trend.neutral { color: var(--text-muted); }

/* 5. Minimal Buttons */
.os-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s ease;
  line-height: 1;
  white-space: nowrap;
}

.os-btn-primary {
  background-color: var(--brand-primary);
  color: #ffffff;
  box-shadow: var(--shadow-xs);
}

.os-btn-primary:hover {
  background-color: var(--brand-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.os-btn-secondary {
  background-color: #ffffff;
  color: var(--text-secondary);
  border: 1px solid var(--border-medium);
}

.os-btn-secondary:hover {
  background-color: var(--surface-bg);
  color: var(--text-primary);
}

.os-btn-sm {
  padding: 0.45rem 0.85rem;
  font-size: 0.75rem;
  border-radius: var(--radius-sm);
}

.os-btn-danger {
  background-color: var(--status-danger-bg);
  color: var(--status-danger-text);
  border-color: rgba(239, 68, 68, 0.2);
}

.os-btn-danger:hover {
  background-color: var(--status-danger);
  color: #ffffff;
}

/* 6. Form Controls */
.os-form-group {
  margin-bottom: 1rem;
}

.os-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.375rem;
}

.os-input, .os-select, .os-textarea {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--text-primary);
  background-color: #ffffff;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 0.625rem 0.875rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  outline: none;
}

.os-input:focus, .os-select:focus, .os-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--brand-primary-light);
}

/* 7. Data Tables */
.os-table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background-color: #ffffff;
}

.os-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

.os-table th {
  background-color: #f8fafc;
  padding: 0.75rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-subtle);
}

.os-table td {
  padding: 0.875rem 1rem;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
}

.os-table tr:last-child td {
  border-bottom: none;
}

.os-table tr:hover td {
  background-color: var(--surface-bg);
}

/* 8. Status Badges & Pills */
.os-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
}

.os-badge-success { background: var(--status-success-bg); color: var(--status-success-text); }
.os-badge-warning { background: var(--status-warning-bg); color: var(--status-warning-text); }
.os-badge-danger { background: var(--status-danger-bg); color: var(--status-danger-text); }
.os-badge-info { background: var(--status-info-bg); color: var(--status-info-text); }

/* 9. Live Autonomous Pulse Dot */
.os-pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--status-success);
  display: inline-block;
  position: relative;
}

.os-pulse-dot::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background-color: var(--status-success);
  opacity: 0.4;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 0.5; }
  70% { transform: scale(2.2); opacity: 0; }
  100% { transform: scale(1); opacity: 0; }
}

/* 10. Responsive Breakpoints */
@media (max-width: 900px) {
  .os-topbar {
    height: auto;
    min-height: var(--header-height);
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
  }
  .os-topbar-title { min-width: 0; }
  .os-topbar-title h1 { font-size: 1.05rem !important; }
  .os-topbar-actions { width: 100%; gap: 0.5rem !important; }
  .os-topbar-actions > div:first-child { flex: 1 1 auto; min-width: 0; }
  .os-topbar-actions #client-select { width: 100% !important; min-width: 0; text-overflow: ellipsis; }
  .os-topbar-label, .os-topbar-divider, .os-btn-label { display: none !important; }
}
@media (max-width: 900px) {
  .os-sidebar {
    position: fixed;
    transform: translateX(-100%);
    box-shadow: var(--shadow-xl);
  }
  .os-sidebar.open {
    transform: translateX(0);
  }
}


/* --- 3. LAYOUT & APPLICATION STYLES --- */
/* ==========================================================================
   KALLISTO OS - MASTER APPLICATION STYLESHEET
   ========================================================================== */


/* Utility Layout Grids */
.os-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.os-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.os-grid-1-2 {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 1.5rem;
}

.os-grid-2-1 {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 1024px) {
  .os-grid-2, .os-grid-3, .os-grid-1-2, .os-grid-2-1 {
    grid-template-columns: 1fr;
  }
}

/* Flexbox Helpers */
.os-flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.os-flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.os-flex-gap-sm { gap: 0.5rem; }
.os-flex-gap-md { gap: 1rem; }
.os-flex-gap-lg { gap: 1.5rem; }

/* Micro-animations */
.fade-in {
  animation: fadeIn 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

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

/* Kiosk & POS Canvas */
.kiosk-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
  width: 100%;
}

.kiosk-grid {
  display: grid;
  grid-template-columns: 2.2fr 1fr;
  gap: 2rem;
}

@media (max-width: 900px) {
  .kiosk-grid {
    grid-template-columns: 1fr;
  }
}

/* Interactive Tabs */
.os-tabs {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
}

.os-tab-btn {
  background: none;
  border: none;
  padding: 0.5rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.os-tab-btn:hover {
  color: var(--text-primary);
  background-color: var(--surface-bg);
}

.os-tab-btn.active {
  color: var(--brand-primary);
  background-color: var(--brand-primary-light);
}

/* Modal Overlay */
.os-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.os-modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.os-modal-box {
  background: #ffffff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2rem;
  transform: scale(0.95);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.os-modal-overlay.open .os-modal-box {
  transform: scale(1);
}

/* Automation Log Stream */
.automation-log-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-height: 480px;
  overflow-y: auto;
}

.automation-log-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.875rem;
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--brand-primary);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
}

.automation-log-time {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}

/* ==========================================================================
   Responsive hardening (mobile + tablet)
   Grid/flex children default to min-width:auto, so long text and wide tables
   pushed pages wider than the viewport. Let them shrink and scroll internally.
   ========================================================================== */
.os-page-content,
.os-card,
.os-grid-2 > *, .os-grid-3 > *, .os-grid-1-2 > *, .os-grid-2-1 > *,
.kiosk-grid > *,
.os-page-content [style*="display: grid"] > *,
.os-page-content [style*="display:grid"] > * {
  min-width: 0;
}
.os-table-wrapper { max-width: 100%; -webkit-overflow-scrolling: touch; }
.os-card-title, .os-card-desc { overflow-wrap: anywhere; }

@media (max-width: 1024px) {
  .os-page-content [style*="grid-template-columns: repeat(3"],
  .os-page-content [style*="grid-template-columns: repeat(4"] {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }
}

@media (max-width: 640px) {
  .os-page-content { padding: 1rem !important; }
  .os-page-content [style*="display: grid"],
  .os-page-content [style*="display:grid"] {
    grid-template-columns: minmax(0, 1fr) !important;
  }
  .os-page-content .os-flex-between { flex-wrap: wrap; gap: 0.75rem; }
  .os-tabs { overflow-x: auto; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; }
  .os-tab-btn { flex: 0 0 auto; white-space: nowrap; }
  .os-card { padding: 1rem; }
}

/* Mobile sidebar toggle + tap-outside backdrop */
#toggle-mobile-sidebar { display: none; }
.os-sidebar-backdrop { display: none; }
@media (max-width: 900px) {
  #toggle-mobile-sidebar { display: inline-flex; }
  .os-sidebar { z-index: 60; }
  .os-sidebar-backdrop.open {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    z-index: 55;
  }
}