/* ==========================================================================
   BONGSHAI ENGINEERING & CONSTRUCTION - COMPONENTS STYLESHEET
   UI Component Elements, Tabs, Modals, RFQ Calculator, Org Chart
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Hero Banner Component
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(30, 41, 59, 0.90) 100%), 
              url('https://images.unsplash.com/photo-1541888946425-d0fbb186a5b7?q=80&w=1600&auto=format&fit=crop') center/cover no-repeat;
  color: #ffffff;
  padding: 4rem 0;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 30%, rgba(234, 179, 8, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1.1rem;
  background: rgba(234, 179, 8, 0.2);
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.hero-title span {
  color: var(--color-accent);
  background: linear-gradient(135deg, #fef08a 0%, #eab308 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.15rem;
  color: #cbd5e1;
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-stats-card {
  background: rgba(15, 23, 42, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.hero-stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.stat-item {
  border-left: 3px solid var(--color-accent);
  padding-left: 1rem;
}

.stat-number {
  font-size: 2.25rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1;
}

.stat-label {
  font-size: 0.825rem;
  color: #94a3b8;
  margin-top: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   2. Business Units Tab Explorer Component
   -------------------------------------------------------------------------- */
.tab-container {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.tab-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scrollbar-width: thin;
  border-bottom: 2px solid var(--color-border);
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  background: transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
}

.tab-btn:hover {
  color: var(--color-text-main);
  background: var(--color-bg-card-alt);
}

.tab-btn.active {
  color: var(--color-primary);
  background: var(--color-bg-card);
  border-bottom-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .tab-btn.active {
  color: var(--color-accent);
}

.tab-pane {
  display: none;
  animation: fadeIn 0.3s ease-in-out forwards;
}

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

.unit-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}

.unit-info h3 {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  color: var(--color-text-main);
}

.unit-tagline {
  color: var(--color-accent-hover);
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.unit-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.unit-list-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--color-text-main);
}

.unit-list-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-accent-hover);
  flex-shrink: 0;
  margin-top: 3px;
}

/* --------------------------------------------------------------------------
   3. Executed Projects Portfolio Component
   -------------------------------------------------------------------------- */
.portfolio-filter-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 0.55rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2rem;
}

.project-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-accent);
}

.project-card-header {
  padding: 1.5rem;
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  color: #ffffff;
  position: relative;
}

.project-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.25rem 0.75rem;
  background: var(--color-accent);
  color: #0f172a;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 800;
}

.project-client {
  font-size: 0.8rem;
  color: var(--color-accent);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 0.35rem;
}

.project-title {
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 1.3;
}

.project-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px dashed var(--color-border);
}

.meta-item strong {
  display: block;
  color: var(--color-text-main);
  font-size: 0.9rem;
}

.project-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.project-view-btn {
  margin-top: auto;
  width: 100%;
}

/* --------------------------------------------------------------------------
   4. Equipment & Machinery Fleet Component
   -------------------------------------------------------------------------- */
.equipment-table-wrap {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.equipment-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

.equipment-table th {
  background: var(--color-primary);
  color: #ffffff;
  padding: 1rem 1.25rem;
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.equipment-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-main);
}

.equipment-table tbody tr:hover {
  background: var(--color-bg-card-alt);
}

.equipment-capacity-badge {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  background: var(--color-accent-soft);
  color: #b45309;
  font-weight: 700;
  border-radius: var(--radius-sm);
  font-size: 0.825rem;
}

[data-theme="dark"] .equipment-capacity-badge {
  color: #fde047;
}

/* --------------------------------------------------------------------------
   5. RFQ / Construction Feasibility Estimator Wizard
   -------------------------------------------------------------------------- */
.estimator-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: 3rem;
  max-width: 900px;
  margin: 0 auto;
}

.step-indicator {
  display: flex;
  justify-content: space-between;
  position: relative;
  margin-bottom: 3rem;
}

.step-indicator::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-border);
  z-index: 1;
  transform: translateY(-50%);
}

.step-node {
  position: relative;
  z-index: 2;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-bg-card);
  border: 3px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
}

.step-node.active {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: #0f172a;
  box-shadow: 0 0 0 4px rgba(234, 179, 8, 0.25);
}

.step-node.completed {
  border-color: var(--color-success);
  background: var(--color-success);
  color: #ffffff;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-weight: 700;
  font-size: 0.92rem;
  margin-bottom: 0.5rem;
  color: var(--color-text-main);
}

.form-control {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-card-alt);
  color: var(--color-text-main);
  transition: border-color var(--transition-fast);
}

.form-control:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(234, 179, 8, 0.2);
}

/* --------------------------------------------------------------------------
   6. Modal Dialog Component
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 700px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2.5rem;
  position: relative;
  transform: scale(0.95);
  transition: transform var(--transition-fast);
}

.modal-overlay.active .modal-container {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--color-bg-card-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-main);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  padding: 1rem 1.5rem;
  background: var(--color-primary);
  color: #ffffff;
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  animation: slideInRight 0.3s ease-out forwards;
}

/* Keyframes */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(50px); }
  to { opacity: 1; transform: translateX(0); }
}

@media (max-width: 768px) {
  .hero-grid, .unit-card-grid {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 2.5rem;
  }
  .estimator-card {
    padding: 1.5rem;
  }
}

/* --------------------------------------------------------------------------
   8. AEO & E-E-A-T Trust Signal Components
   -------------------------------------------------------------------------- */

/* Authority Stamp Card */
.authority-stamp-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  padding: 1.25rem 1.75rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  margin: 2rem 0;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.authority-stamp-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.authority-avatar {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  border: 2px solid var(--color-accent);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.authority-meta {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.authority-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.authority-role {
  font-size: 0.875rem;
  color: var(--color-accent-dark);
  font-weight: 600;
}

.authority-desc {
  font-size: 0.825rem;
  color: var(--color-text-sub);
}

/* Interactive Operational Metrics Grid */
.metrics-counter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin: 2.5rem 0;
}

.counter-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.counter-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-primary) 100%);
}

.counter-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

.counter-value {
  font-size: 2.75rem;
  font-weight: 900;
  font-family: var(--font-heading);
  color: var(--color-primary);
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.counter-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 0.25rem;
}

.counter-subtitle {
  font-size: 0.8rem;
  color: var(--color-text-sub);
}

/* Engineering Standards Badges Bar */
.standards-badge-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
  padding: 1.25rem 0;
}

.standard-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-main);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.standard-chip:hover {
  border-color: var(--color-accent);
  background: var(--color-bg-card-alt);
  transform: translateY(-1px);
}

.standard-chip-icon {
  width: 22px;
  height: 22px;
  border-radius: var(--radius-full);
  background: var(--color-accent-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
}