/* DFoffer - FontAwesome Icon System Integration */

/* FontAwesome CDN Import */
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css');

/* Industrial Icon Color Palette */
:root {
  --icon-primary: #007AFF;
  --icon-secondary: #8E8E93;
  --icon-accent: #FF9500;
  --icon-success: #34C759;
  --icon-warning: #FF9500;
  --icon-error: #FF3B30;
  --icon-laser: #FF0066;
  --icon-cnc: #5AC8FA;
  --icon-material: #30B0C7;
}

/* Base Icon Styling */
.icon {
  display: inline-block;
  vertical-align: middle;
  line-height: 1;
  transition: all 0.2s ease;
}

/* Icon Size System */
.icon-xs { font-size: 0.75rem; }
.icon-sm { font-size: 0.875rem; }
.icon-md { font-size: 1rem; }
.icon-lg { font-size: 1.25rem; }
.icon-xl { font-size: 1.5rem; }
.icon-2xl { font-size: 2rem; }
.icon-3xl { font-size: 3rem; }

/* Icon Color Classes */
.icon-primary { color: var(--icon-primary); }
.icon-secondary { color: var(--icon-secondary); }
.icon-accent { color: var(--icon-accent); }
.icon-success { color: var(--icon-success); }
.icon-warning { color: var(--icon-warning); }
.icon-error { color: var(--icon-error); }
.icon-laser { color: var(--icon-laser); }
.icon-cnc { color: var(--icon-cnc); }
.icon-material { color: var(--icon-material); }

/* Interactive Icon States */
.icon-interactive {
  cursor: pointer;
  transition: all 0.15s ease;
}

.icon-interactive:hover {
  transform: scale(1.1);
  opacity: 0.8;
}

.icon-interactive:active {
  transform: scale(0.95);
}

/* Button Icon Integration */
.btn .icon {
  margin-right: 8px;
}

.btn .icon:last-child {
  margin-right: 0;
  margin-left: 8px;
}

.btn-icon-only {
  padding: 12px;
  width: 44px;
  height: 44px;
}

.btn-icon-only .icon {
  margin: 0;
}

/* Input Field Icon Integration */
.input-with-icon {
  position: relative;
}

.input-with-icon .input-field {
  padding-left: 44px;
}

.input-with-icon .icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--icon-secondary);
  pointer-events: none;
}

.input-with-icon .input-field:focus + .icon {
  color: var(--icon-primary);
}

/* Navigation Icon Styling */
.nav-icon {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--icon-secondary);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 6px;
  transition: all 0.15s ease;
}

.nav-icon:hover {
  background-color: rgba(0, 122, 255, 0.1);
  color: var(--icon-primary);
}

.nav-icon.active {
  background-color: var(--icon-primary);
  color: white;
}

/* Status Indicator Icons */
.status-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  font-size: 0.75rem;
  margin-right: 8px;
}

.status-icon.success {
  background-color: var(--icon-success);
  color: white;
}

.status-icon.warning {
  background-color: var(--icon-warning);
  color: white;
}

.status-icon.error {
  background-color: var(--icon-error);
  color: white;
}

/* Technical Category Icons */
.category-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background-color: rgba(0, 122, 255, 0.1);
  color: var(--icon-primary);
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.category-icon.laser {
  background-color: rgba(255, 0, 102, 0.1);
  color: var(--icon-laser);
}

.category-icon.cnc {
  background-color: rgba(90, 200, 250, 0.1);
  color: var(--icon-cnc);
}

.category-icon.material {
  background-color: rgba(48, 176, 199, 0.1);
  color: var(--icon-material);
}

/* Result Display Icons */
.result-icon {
  margin-right: 8px;
  color: var(--icon-primary);
}

.result-item .icon {
  min-width: 16px;
  text-align: center;
}

/* Loading Spinner */
.loading-icon {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Print Icon Styling */
.print-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background-color: var(--icon-secondary);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.print-button:hover {
  background-color: var(--icon-primary);
  transform: translateY(-1px);
}

/* FAQ Collapsible Icons */
.faq-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 16px;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: all 0.15s ease;
}

.faq-toggle:hover {
  background-color: rgba(0, 122, 255, 0.05);
}

.faq-toggle .icon {
  transition: transform 0.2s ease;
}

.faq-toggle.expanded .icon {
  transform: rotate(180deg);
}

/* Tool Recommendation Icons */
.recommendation-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  text-decoration: none;
  color: inherit;
  transition: all 0.15s ease;
  margin-bottom: 12px;
}

.recommendation-card:hover {
  border-color: var(--icon-primary);
  box-shadow: 0 2px 8px rgba(0, 122, 255, 0.1);
  transform: translateY(-1px);
}

.recommendation-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 122, 255, 0.1);
  color: var(--icon-primary);
  border-radius: 8px;
  font-size: 1rem;
}

/* Specific Manufacturing Icons */
.icon-laser-beam::before { content: "\f0e7"; } /* bolt */
.icon-precision::before { content: "\f05b"; } /* crosshairs */
.icon-measurement::before { content: "\f545"; } /* ruler-combined */
.icon-material::before { content: "\f1b2"; } /* cube */
.icon-temperature::before { content: "\f2c9"; } /* thermometer-half */
.icon-speed::before { content: "\f3fd"; } /* tachometer-alt */
.icon-efficiency::before { content: "\f201"; } /* chart-line */
.icon-safety::before { content: "\f3ed"; } /* shield-alt */
.icon-cnc-machine::before { content: "\f013"; } /* cogs */
.icon-coordinate::before { content: "\f276"; } /* compass */
.icon-angle::before { content: "\f101"; } /* angle-right */
.icon-depth::before { content: "\f435"; } /* arrows-alt-v */
.icon-power::before { content: "\f1e6"; } /* battery-full */
.icon-frequency::before { content: "\f6e8"; } /* wave-square */

/* Mobile Responsive Icons */
@media (max-width: 768px) {
  .category-icon {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
  
  .recommendation-icon {
    width: 32px;
    height: 32px;
    font-size: 0.875rem;
  }
  
  .btn .icon {
    font-size: 0.875rem;
  }
  
  .nav-icon {
    padding: 12px 16px;
  }
}

/* Dark Mode Support (future enhancement) */
@media (prefers-color-scheme: dark) {
  :root {
    --icon-secondary: #98989D;
    --icon-primary: #0A84FF;
  }
}

/* Accessibility Enhancements */
.icon[aria-hidden="true"] {
  pointer-events: none;
}

.icon:focus {
  outline: 2px solid var(--icon-primary);
  outline-offset: 2px;
  border-radius: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  .icon {
    filter: contrast(1.2);
  }
  
  .category-icon,
  .recommendation-icon,
  .status-icon {
    border: 1px solid currentColor;
  }
}