/* Step Management */
.step {
  display: none;
  animation: fadeIn 0.3s ease-in;
}

.step.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Step Header */
.step-header {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid #e9ecef;
}

.step-title {
  font-size: 1.75rem;
  font-weight: 600;
  color: #2c3e50;
  margin-bottom: 0.5rem;
}

.step-subtitle {
  color: #6c757d;
  font-size: 0.95rem;
  margin: 0;
}

/* OS Selection Styles */
.os-selection-container {
  padding: 1rem 0;
}

.os-option-card {
  position: relative;
  background: #ffffff;
  border: 2px solid #e9ecef;
  border-radius: 12px;
  padding: 1.5rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 120px;
}

.os-option-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #e6a100, #b97004);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.os-option-card:hover {
  transform: translateY(-5px);
  border-color: #e6a100;
  box-shadow: 0 8px 25px rgba(230, 161, 0, 0.15);
}

.os-option-card:hover::before {
  transform: scaleX(1);
}

.os-option-card.active {
  border-color: #e6a100;
  background: linear-gradient(135deg, #fff8e1 0%, #ffffff 100%);
  box-shadow: 0 8px 25px rgba(230, 161, 0, 0.2);
  transform: translateY(-5px);
}

.os-option-card.active::before {
  transform: scaleX(1);
}

.os-card-icon {
  font-size: 2rem;
  color: #6c757d;
  margin-bottom: 1rem;
  transition: all 0.3s ease;
}

.os-option-card:hover .os-card-icon,
.os-option-card.active .os-card-icon {
  color: #e6a100;
  transform: scale(1.1);
}

.os-card-content {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.os-card-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #2c3e50;
  margin: 0;
  transition: color 0.3s ease;
}

.os-option-card.active .os-card-title {
  color: #e6a100;
}

.os-card-check {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 32px;
  height: 32px;
  background: #e6a100;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0);
  transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.os-card-check i {
  color: white;
  font-size: 0.875rem;
}

.os-option-card.active .os-card-check {
  opacity: 1;
  transform: scale(1);
}

/* Server Selection Styles */
.server-selection-container {
  padding: 1rem 0;
}

.server-groups {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.server-group-card {
  background: #ffffff;
  border: 2px solid #e9ecef;
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.server-group-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.hdd-group {
  border-left: 4px solid #ffc107;
}

.hdd-group .server-group-header {
  background: linear-gradient(135deg, #fff3cd 0%, #ffe69c 100%);
}

.ssd-group {
  border-left: 4px solid #28a745;
}

.ssd-group .server-group-header {
  background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
}

.server-group-header {
  padding: 1.5rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s ease;
  border-bottom: 2px solid rgba(0, 0, 0, 0.05);
}

.server-group-header:hover {
  background: linear-gradient(135deg, #fff8e1 0%, #ffe082 100%);
}

.ssd-group .server-group-header:hover {
  background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
}

.server-group-title {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.server-group-icon {
  font-size: 1.5rem;
  color: #495057;
}

.hdd-group .server-group-icon {
  color: #f57c00;
}

.ssd-group .server-group-icon {
  color: #2e7d32;
}

.server-group-title h4 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
  color: #2c3e50;
}

.server-group-badge {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.badge-count {
  background: rgba(255, 255, 255, 0.9);
  color: #495057;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.875rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.collapse-icon {
  font-size: 1rem;
  color: #6c757d;
  transition: transform 0.3s ease;
}

.server-group-header[aria-expanded="true"] .collapse-icon {
  transform: rotate(180deg);
}

.server-group-content {
  padding: 1.5rem;
}

/* Ensure Bootstrap collapse works properly */
.accordion-body.collapse {
  display: none;
}

.accordion-body.collapse.show {
  display: block !important;
}

.accordion-body.collapsing {
  position: relative;
  height: 0;
  overflow: hidden;
  transition: height 0.35s ease;
  display: block;
}

/* Ensure server groups container doesn't collapse */
#server-accordion {
  display: block !important;
}

.server-groups {
  display: block !important;
}

/* Server Table Styles */
.server-table {
  margin: 0;
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

.server-table thead {
  background: #f8f9fa;
}

.server-table thead th {
  padding: 1rem;
  font-weight: 600;
  color: #495057;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
  border-bottom: 2px solid #dee2e6;
  white-space: nowrap;
}

.server-table tbody tr {
  transition: all 0.2s ease;
  border-bottom: 1px solid #e9ecef;
}

.server-table tbody tr:hover {
  background-color: #f8f9fa;
  transform: scale(1.01);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.server-table tbody tr.plan-row {
  cursor: pointer;
}

.server-table tbody td {
  padding: 1rem;
  vertical-align: middle;
  color: #495057;
}

.server-table tbody tr.table-active {
  background: linear-gradient(135deg, #fff3cd 0%, #ffe69c 100%);
  border-left: 4px solid #e6a100;
  box-shadow: 0 4px 12px rgba(230, 161, 0, 0.2);
}

.server-table tbody tr.table-active td {
  color: #b97004;
  font-weight: 500;
}

.badge-disk {
  background: #e9ecef;
  color: #495057;
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.price-text {
  color: #28a745;
  font-size: 1.1rem;
  font-weight: 700;
}

.price-text small {
  color: #6c757d;
  font-size: 0.75rem;
  font-weight: 400;
  margin-left: 0.25rem;
}

/* Summary Sidebar */
.summary-sidebar {
  background: #ffffff;
  border: 2px solid #e9ecef;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  position: sticky;
  top: 20px;
}

.summary-header {
  background: linear-gradient(135deg, #b97004 0%, #e6a100 100%);
  padding: 1.5rem;
  color: white;
}

.summary-header h4 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.summary-header i {
  font-size: 1.1rem;
}

.summary-content {
  padding: 1.5rem;
}

.summary-item {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid #e9ecef;
}

.summary-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.summary-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
  color: #6c757d;
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.summary-label i {
  color: #e6a100;
  font-size: 1rem;
}

.summary-value {
  font-size: 1rem;
  font-weight: 600;
  color: #2c3e50;
  padding: 0.75rem;
  background: #f8f9fa;
  border-radius: 8px;
  min-height: 2.5rem;
  display: flex;
  align-items: center;
}

.summary-value:empty::before {
  content: "Not Selected";
  color: #adb5bd;
  font-weight: 400;
}

.summary-footer {
  padding: 1rem 1.5rem;
  background: #f8f9fa;
  border-top: 1px solid #e9ecef;
}

.summary-note {
  margin: 0;
  font-size: 0.875rem;
  color: #6c757d;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.summary-note i {
  color: #e6a100;
}

/* Navigation */
.stepper-navigation {
  display: flex;
  justify-content: space-between;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 2px solid #e9ecef;
}

.stepper-navigation .btn {
  padding: 0.75rem 2rem;
  font-weight: 600;
  border-radius: 8px;
  transition: all 0.3s ease;
  min-width: 120px;
}

.stepper-navigation .btn-primary {
  background: linear-gradient(135deg, #b97004 0%, #e6a100 100%);
  border: none;
}

.stepper-navigation .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(230, 161, 0, 0.4);
}

.stepper-navigation .btn-secondary {
  background: #6c757d;
  border: none;
}

.stepper-navigation .btn-secondary:hover:not(:disabled) {
  background: #5a6268;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(108, 117, 125, 0.4);
}

.stepper-navigation .btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Responsive Design */
@media screen and (max-width: 992px) {
  .summary-sidebar {
    position: relative;
    top: 0;
    margin-top: 2rem;
  }

  .step-title {
    font-size: 1.5rem;
  }

  .server-group-title h4 {
    font-size: 1.25rem;
  }
}

@media screen and (max-width: 768px) {
  .step-header {
    margin-bottom: 1.5rem;
  }

  .step-title {
    font-size: 1.25rem;
  }

  .step-subtitle {
    font-size: 0.875rem;
  }

  .os-option-card {
    min-height: 150px;
    padding: 1.5rem 1rem;
  }

  .os-card-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
  }

  .os-card-title {
    font-size: 1rem;
  }

  .server-group-header {
    padding: 1rem;
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .server-group-title {
    flex: 1;
    min-width: 100%;
  }

  .server-group-title h4 {
    font-size: 1.1rem;
  }

  .server-group-badge {
    width: 100%;
    justify-content: space-between;
  }

  .server-group-content {
    padding: 1rem;
  }

  /* Responsive Table */
  .table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .server-table {
    min-width: 800px;
  }

  .server-table thead th {
    padding: 0.75rem 0.5rem;
    font-size: 0.7rem;
  }

  .server-table tbody td {
    padding: 0.75rem 0.5rem;
    font-size: 0.875rem;
  }

  /* Mobile Card View for Tables */
  @media screen and (max-width: 576px) {
    .table-responsive .server-table {
      display: block;
      min-width: 100%;
    }

    .table-responsive .server-table thead {
      display: none;
    }

    .table-responsive .server-table tbody {
      display: block;
    }

    .table-responsive .server-table tbody tr {
      display: block;
      margin-bottom: 1rem;
      border: 2px solid #e9ecef;
      border-radius: 12px;
      padding: 1rem;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
      background: #ffffff;
      transition: all 0.3s ease;
    }

    .table-responsive .server-table tbody tr:hover {
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
    }

    .table-responsive .server-table tbody tr.table-active {
      border-color: #e6a100;
      background: linear-gradient(135deg, #fff3cd 0%, #ffe69c 100%);
      box-shadow: 0 4px 16px rgba(230, 161, 0, 0.25);
    }

    .table-responsive .server-table tbody td {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 0.75rem 0;
      border-bottom: 1px solid #f0f0f0;
      text-align: left;
    }

    .table-responsive .server-table tbody td:last-child {
      border-bottom: none;
    }

    .table-responsive .server-table tbody td:before {
      content: attr(data-label);
      font-weight: 600;
      color: #495057;
      text-transform: capitalize;
      flex: 0 0 40%;
      font-size: 0.875rem;
    }

    .table-responsive .server-table tbody td strong {
      font-weight: 600;
    }

    .table-responsive .server-table tbody td .badge-disk {
      margin-left: auto;
    }

    .table-responsive .server-table tbody td .price-text {
      font-size: 1rem;
    }
  }

  .stepper-navigation {
    flex-direction: column;
    gap: 1rem;
  }

  .stepper-navigation .btn {
    width: 100%;
  }

  .summary-header {
    padding: 1.25rem;
  }

  .summary-header h4 {
    font-size: 1.1rem;
  }

  .summary-content {
    padding: 1.25rem;
  }
}

@media screen and (max-width: 576px) {
  .os-option-card {
    min-height: 120px;
    padding: 1.25rem 0.75rem;
  }

  .os-card-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
  }

  .os-card-title {
    font-size: 0.9rem;
  }

  .os-card-check {
    width: 28px;
    height: 28px;
    top: 0.75rem;
    right: 0.75rem;
  }

  .server-group-header {
    padding: 0.875rem;
  }

  .server-group-content {
    padding: 0.875rem;
  }
}

/* Hidden Elements */
.hidden-radio {
  display: none !important;
}

/* Print Styles */
@media print {
  .stepper-navigation,
  .summary-sidebar {
    display: none;
  }

  .step {
    display: block !important;
  }
}