/**
 * HEAVY MACHINERY - Global Industrial Marketplace
 * Phase 2.10: Premium Industrial Loading Experience
 * 
 * Theme: Light Industrial Precision
 * Background: Warm Ivory (#F8F9F6)
 * Primary Accent: Deep Industrial Teal (#104E46)
 * Text: Deep Charcoal (#121922)
 * Subtle Gold Accent: (#C5A880)
 * Status Green: (#059669)
 */

/* ==========================================================================
   1. Full-Screen Loader Container & Lock
   ========================================================================== */

body.loading-locked {
  overflow: hidden !important;
  height: 100vh !important;
  touch-action: none !important;
}

#heavy-machinery-loader {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 999999;
  background-color: var(--color-bg-body, #F8F9F6);
  color: var(--color-text-main, #121922);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  padding: clamp(1.25rem, 3vw, 2.5rem);
  box-sizing: border-box;
  overflow: hidden;
  user-select: none;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.5s ease;
}

#heavy-machinery-loader.loader-hidden {
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
}

/* ==========================================================================
   2. Background Technical Grid & Visual Layers
   ========================================================================== */

.loader-bg-grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(to right, rgba(16, 78, 70, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(16, 78, 70, 0.035) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 1;
}

.loader-technical-crosshairs {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
  opacity: 0.4;
}

.loader-imagery-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 3;
  overflow: hidden;
}

.loader-bg-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.05);
  transition: opacity 0.8s ease, transform 1.2s ease;
  filter: contrast(1.05) grayscale(25%);
  mix-blend-mode: multiply;
}

.loader-bg-image.active {
  opacity: 0.16;
  transform: scale(1);
}

.loader-bg-overlay-mask {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(248, 249, 246, 0.65) 0%, rgba(248, 249, 246, 0.94) 70%, #F8F9F6 100%);
  z-index: 4;
  pointer-events: none;
}

/* Global Network Connection SVG Overlay */
.loader-network-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 5;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.8s ease;
}

.loader-network-svg.visible {
  opacity: 0.35;
}

/* ==========================================================================
   3. Header Bar (Stage Step & Brand Motto)
   ========================================================================== */

.loader-top-bar {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 1360px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: clamp(0.7rem, 1.2vw, 0.8125rem);
  letter-spacing: 0.08em;
  color: var(--color-text-muted, #64748B);
  text-transform: uppercase;
  border-bottom: 1px solid rgba(16, 78, 70, 0.08);
  padding-bottom: 0.75rem;
}

.loader-step-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--color-primary-700, #104E46);
}

.loader-step-sep {
  opacity: 0.4;
  color: var(--color-text-muted, #64748B);
}

.loader-step-label {
  font-weight: 500;
  color: var(--color-text-main, #121922);
}

.loader-motto {
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--color-text-muted, #64748B);
  text-align: right;
}

/* ==========================================================================
   4. Center Branding & Focal Area
   ========================================================================== */

.loader-center-content {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin: auto 0;
  width: 100%;
  max-width: 720px;
}

.loader-logo-wrapper {
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  filter: drop-shadow(0 4px 12px rgba(16, 78, 70, 0.15));
}

.loader-logo-icon {
  width: 48px;
  height: 48px;
  display: block;
}

.loader-brand-title {
  font-family: var(--font-sans, 'Plus Jakarta Sans', sans-serif);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--color-primary-800, #0C3E38);
  margin: 0 0 0.4rem 0;
  line-height: 1.1;
  text-transform: uppercase;
}

.loader-brand-tagline {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: clamp(0.72rem, 1.4vw, 0.875rem);
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--color-text-muted, #64748B);
  margin: 0 0 2rem 0;
  text-transform: uppercase;
}

/* ==========================================================================
   5. Technical Progress System
   ========================================================================== */

.loader-progress-container {
  width: 100%;
  max-width: 440px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.loader-progress-track-wrapper {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.loader-progress-track {
  flex: 1;
  height: 3px;
  background-color: rgba(16, 78, 70, 0.12);
  border-radius: 2px;
  position: relative;
  overflow: visible;
}

.loader-progress-fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #104E46 0%, #16655A 100%);
  border-radius: 2px;
  transition: width 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.loader-progress-dot {
  position: absolute;
  top: 50%;
  right: -5px;
  transform: translateY(-50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: #104E46;
  border: 2px solid #FFFFFF;
  box-shadow: 0 0 8px rgba(16, 78, 70, 0.4);
  transition: transform 0.2s ease;
}

.loader-progress-pct {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary-700, #104E46);
  min-width: 44px;
  text-align: right;
  letter-spacing: 0.04em;
}

.loader-status-caption {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--color-text-muted, #64748B);
  text-transform: uppercase;
  min-height: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  transition: color 0.3s ease;
}

.loader-status-ready-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.6rem;
  border-radius: 9999px;
  background-color: rgba(5, 150, 105, 0.1);
  color: var(--color-success, #059669);
  font-weight: 600;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
}

/* ==========================================================================
   6. Bottom Technical Status Ticker
   ========================================================================== */

.loader-bottom-bar {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 1360px;
  border-top: 1px solid rgba(16, 78, 70, 0.08);
  padding-top: 0.85rem;
}

.loader-status-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: center;
}

.loader-status-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: clamp(0.68rem, 1.1vw, 0.75rem);
  color: var(--color-text-muted, #64748B);
}

.loader-status-icon {
  width: 16px;
  height: 16px;
  color: var(--color-primary-600, #16655A);
  flex-shrink: 0;
  stroke-width: 2;
}

.loader-status-content {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  overflow: hidden;
  white-space: nowrap;
}

.loader-status-title {
  font-weight: 600;
  color: var(--color-text-main, #121922);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.loader-status-val {
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.loader-status-val.status-loading {
  color: #D97706; /* Muted warm amber */
}

.loader-status-val.status-pending {
  color: var(--color-text-muted, #64748B);
}

.loader-status-val.status-complete {
  color: var(--color-success, #059669);
  font-weight: 600;
}

/* ==========================================================================
   7. Responsive Rules for Mobile & Tablet Viewports
   ========================================================================== */

@media (max-width: 768px) {
  #heavy-machinery-loader {
    padding: 1.25rem 1rem;
  }

  .loader-top-bar {
    font-size: 0.7rem;
  }

  .loader-motto {
    display: none; /* Conserve space on compact mobile viewports */
  }

  .loader-brand-title {
    font-size: 1.75rem;
  }

  .loader-brand-tagline {
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    margin-bottom: 1.5rem;
  }

  .loader-progress-container {
    max-width: 320px;
  }

  .loader-status-grid {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .loader-status-item:not(:first-child) {
    display: none; /* Show primary operational status on mobile */
  }
}

@media (max-width: 480px) {
  .loader-logo-wrapper {
    margin-bottom: 0.85rem;
    width: 42px;
    height: 42px;
  }

  .loader-logo-icon {
    width: 38px;
    height: 38px;
  }

  .loader-brand-title {
    font-size: 1.5rem;
  }

  .loader-progress-track-wrapper {
    gap: 0.65rem;
  }

  .loader-progress-pct {
    font-size: 0.75rem;
    min-width: 36px;
  }
}

/* ==========================================================================
   8. Reduced Motion Support
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  #heavy-machinery-loader {
    transition: opacity 0.15s linear, visibility 0.15s linear !important;
  }

  .loader-bg-image {
    transition: none !important;
    transform: none !important;
  }

  .loader-progress-fill {
    transition: width 0.05s linear !important;
  }

  .loader-progress-dot {
    transition: none !important;
  }
}