/* 
 * Components CSS for Structural Engineering Tools
 * Reusable UI components like cards, modals, tooltips
 */

/* Tool cards for landing page */
.tool-card {
  background: linear-gradient(135deg, rgba(55, 65, 81, 0.8) 0%, rgba(31, 41, 55, 0.9) 100%);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(75, 85, 99, 0.3);
  border-radius: var(--border-radius);
  padding: 2rem;
  transition: all 0.3s ease;
  cursor: pointer;
}

.tool-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  border-color: rgba(59, 130, 246, 0.5);
}

.tool-card-icon {
  width: 3rem;
  height: 3rem;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1rem;
}

.tool-card-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.tool-card-description {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.tool-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.tool-card-tag {
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
}

/* Results containers */
.results-container {
  background-color: var(--bg-tertiary);
  border-radius: var(--border-radius-sm);
  padding: 1.5rem;
  margin-top: 2rem;
  border: 1px solid var(--border-light);
}

.results-header {
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
}

.results-grid {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 1024px) {
  .results-grid {
    grid-template-columns: 2fr 1fr;
  }
}

.calculation-steps {
  background-color: var(--bg-quaternary);
  border-radius: var(--border-radius-sm);
  padding: 1rem;
  overflow-x: auto;
}

.reference-image {
  display: flex;
  flex-direction: column;
}

.reference-image img {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border-light);
}

/* Summary cards */
.summary-card {
  background-color: var(--bg-secondary);
  border-radius: var(--border-radius-sm);
  padding: 1.5rem;
  border-left: 4px solid var(--accent-blue);
  margin-top: 2rem;
}

.summary-header {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.summary-grid {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .summary-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.summary-section {
  padding: 0;
}

.summary-section-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.summary-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(75, 85, 99, 0.3);
}

.summary-item:last-child {
  border-bottom: none;
}

.summary-label {
  color: var(--text-secondary);
}

.summary-value {
  font-family: 'Courier New', monospace;
  font-weight: 600;
  color: var(--text-primary);
}

/* Status indicators */
.status-ok {
  color: #4ade80; /* green-400 */
}

.status-warning {
  color: #facc15; /* yellow-400 */
}

.status-error {
  color: #f87171; /* red-400 */
}

/* Progress indicators */
.utilization-bar {
  width: 100%;
  height: 0.5rem;
  background-color: var(--bg-quaternary);
  border-radius: 0.25rem;
  overflow: hidden;
  margin-top: 0.5rem;
}

.utilization-fill {
  height: 100%;
  transition: width 0.3s ease;
  border-radius: 0.25rem;
}

.utilization-fill.safe {
  background-color: var(--accent-green);
}

.utilization-fill.warning {
  background-color: #facc15; /* yellow-400 */
}

.utilization-fill.danger {
  background-color: var(--accent-red);
}

/* Loading states */
.loading-spinner {
  display: inline-block;
  width: 1.5rem;
  height: 1.5rem;
  border: 2px solid var(--bg-quaternary);
  border-top: 2px solid var(--accent-blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-text {
  color: var(--text-muted);
  font-style: italic;
}

/* Tooltips */
.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip-content {
  visibility: hidden;
  opacity: 0;
  position: absolute;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  text-align: center;
  padding: 0.5rem;
  border-radius: var(--border-radius-sm);
  white-space: nowrap;
  z-index: 1000;
  transition: opacity 0.3s;
  border: 1px solid var(--border-color);
  font-size: 0.75rem;
}

.tooltip:hover .tooltip-content {
  visibility: visible;
  opacity: 1;
}

/* Alerts and notifications */
.alert {
  padding: 1rem;
  border-radius: var(--border-radius-sm);
  margin-bottom: 1rem;
  border-left: 4px solid;
}

.alert-info {
  background-color: rgba(37, 99, 235, 0.1);
  border-left-color: var(--accent-blue);
  color: #93c5fd;
}

.alert-success {
  background-color: rgba(22, 163, 74, 0.1);
  border-left-color: var(--accent-green);
  color: #86efac;
}

.alert-warning {
  background-color: rgba(245, 158, 11, 0.1);
  border-left-color: #f59e0b;
  color: #fcd34d;
}

.alert-error {
  background-color: rgba(220, 38, 38, 0.1);
  border-left-color: var(--accent-red);
  color: #fca5a5;
}

/* Tabs */
.tab-container {
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 1.5rem;
}

.tab-list {
  display: flex;
  gap: 0;
  list-style: none;
  padding: 0;
  margin: 0;
}

.tab-button {
  padding: 0.75rem 1.5rem;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}

.tab-button:hover {
  color: var(--text-secondary);
}

.tab-button.active {
  color: var(--accent-blue);
  border-bottom-color: var(--accent-blue);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Collapsible sections */
.collapsible-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  background-color: var(--bg-tertiary);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.collapsible-header:hover {
  background-color: var(--bg-quaternary);
}

.collapsible-icon {
  transition: transform 0.3s ease;
}

.collapsible-header.expanded .collapsible-icon {
  transform: rotate(180deg);
}

.collapsible-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.collapsible-content.expanded {
  max-height: 1000px;
}

/* Badge components */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 9999px;
}

.badge-primary {
  background-color: var(--accent-blue);
  color: white;
}

.badge-secondary {
  background-color: var(--bg-quaternary);
  color: var(--text-secondary);
}

.badge-success {
  background-color: var(--accent-green);
  color: white;
}

.badge-danger {
  background-color: var(--accent-red);
  color: white;
}

/* Calculation Box Styles */
.calc-box {
  background-color: rgba(55, 65, 81, 0.9);
  border-radius: var(--border-radius);
  border: 1px solid rgba(75, 85, 99, 0.4);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  overflow: hidden;
}

.calc-box:hover {
  border-color: rgba(59, 130, 246, 0.3);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.calc-header {
  background: linear-gradient(135deg, rgba(31, 41, 55, 0.8) 0%, rgba(17, 24, 39, 0.9) 100%);
  padding: 1rem 1.5rem;
  border-bottom: 1px solid rgba(75, 85, 99, 0.3);
}

.calc-content {
  padding: 1.5rem;
}

.calc-row {
  display: flex;
  align-items: center;
  margin-bottom: 0.75rem;
  padding: 0.5rem 0;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.calc-row:last-child {
  margin-bottom: 0;
}

.calc-label {
  font-family: 'Courier New', monospace;
  font-weight: 600;
  color: #e5e7eb;
  min-width: 60px;
  font-size: 0.95rem;
}

.calc-equals {
  color: #9ca3af;
  font-weight: 500;
  margin: 0 0.5rem;
}

.calc-expression {
  color: #d1d5db;
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
  padding: 0.25rem 0.5rem;
  background-color: rgba(17, 24, 39, 0.5);
  border-radius: 4px;
  border: 1px solid rgba(75, 85, 99, 0.3);
}

.calc-value {
  font-family: 'Courier New', monospace;
  font-weight: 700;
  color: #3b82f6;
  background-color: rgba(59, 130, 246, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: 6px;
  border: 1px solid rgba(59, 130, 246, 0.3);
  font-size: 0.95rem;
}

.calc-separator {
  height: 1px;
  background: linear-gradient(to right, transparent 0%, rgba(75, 85, 99, 0.5) 50%, transparent 100%);
  margin: 1rem 0;
}

.calc-note {
  color: #9ca3af;
  font-style: italic;
  font-size: 0.85rem;
}