:root {
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --bg-input: #ffffff;
  --bg-input-border: #cbd5e1;
  --bg-input-focus: #ffffff;
  
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-border: #bfdbfe;
  
  --success: #16a34a;
  --success-hover: #15803d;
  --success-light: #f0fdf4;
  --success-border: #bbf7d0;
  
  --danger: #dc2626;
  --danger-light: #fef2f2;
  --danger-border: #fecaca;
  
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-subtle: #64748b;
  --text-placeholder: #94a3b8;
  
  --border: #e2e8f0;
  --border-subtle: #f1f5f9;
  
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.06), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* SVG Utilities */
.btn-icon-svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.icon-xs {
  width: 14px;
  height: 14px;
}

.icon-sm {
  width: 16px;
  height: 16px;
}

.icon-md {
  width: 20px;
  height: 20px;
}

.icon-lg {
  width: 28px;
  height: 28px;
}

/* Header */
.app-header {
  background-color: #ffffff;
  border-bottom: 1px solid var(--border);
  padding: 0.875rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 40;
}

.header-container {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo {
  width: 36px;
  height: 36px;
  background-color: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-logo svg {
  width: 20px;
  height: 20px;
}

.brand-info h1 {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-main);
  line-height: 1.2;
}

.badge-status {
  font-size: 0.75rem;
  color: var(--text-subtle);
  font-weight: 500;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.auth-pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: #f1f5f9;
  border: 1px solid var(--border);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

.dot-online {
  width: 7px;
  height: 7px;
  background-color: var(--success);
  border-radius: var(--radius-full);
  display: inline-block;
}

/* Main Container */
.main-container {
  max-width: 860px;
  width: 100%;
  margin: 2rem auto;
  padding: 0 1.25rem;
  flex: 1;
}

/* Stepper */
.stepper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.75rem;
  background-color: #ffffff;
  padding: 1rem 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.step-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-subtle);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.step-number {
  width: 26px;
  height: 26px;
  border-radius: var(--radius-full);
  background-color: #f8fafc;
  border: 1px solid var(--bg-input-border);
  color: var(--text-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
  transition: all 0.2s ease;
}

.step-item.active {
  color: var(--text-main);
  font-weight: 600;
}

.step-item.active .step-number {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.step-item.completed {
  color: var(--text-main);
}

.step-item.completed .step-number {
  background-color: var(--success-light);
  color: var(--success);
  border-color: var(--success-border);
}

.step-divider {
  flex: 1;
  height: 1px;
  background-color: var(--border);
  margin: 0 1rem;
}

/* Card */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  box-shadow: var(--shadow-sm);
}

.step-header {
  margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.25rem;
}

.step-header h2 {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.step-header p {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Form Grid */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.full-width {
  grid-column: span 2;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

label {
  font-size: 0.875rem;
  font-weight: 500;
  color: #1e293b;
}

.req {
  color: var(--danger);
  margin-left: 2px;
}

input, textarea, select {
  width: 100%;
  padding: 0.625rem 0.875rem;
  background-color: var(--bg-input);
  border: 1px solid var(--bg-input-border);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-size: 0.875rem;
  font-family: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input::placeholder, textarea::placeholder {
  color: var(--text-placeholder);
}

input:hover, textarea:hover, select:hover {
  border-color: #94a3b8;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

textarea {
  resize: vertical;
  line-height: 1.5;
}

.helper-text {
  font-size: 0.8rem;
  color: var(--text-subtle);
  line-height: 1.4;
  margin-top: 0.125rem;
}

/* Summary Box */
.summary-box {
  margin-top: 1.5rem;
  padding: 1.125rem 1.25rem;
  background-color: #f8fafc;
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  display: flex;
  gap: 0.875rem;
  align-items: flex-start;
}

.summary-icon {
  color: var(--primary);
  display: flex;
  align-items: center;
  margin-top: 0.125rem;
}

.summary-content h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.summary-content p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.45;
}

/* Step Footer */
.step-footer {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.125rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
  line-height: 1.25;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
}

.btn-secondary {
  background-color: #ffffff;
  border: 1px solid var(--bg-input-border);
  color: var(--text-main);
}
.btn-secondary:hover {
  background-color: #f8fafc;
  border-color: #94a3b8;
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
}
.btn-ghost:hover {
  background-color: #f1f5f9;
  color: var(--text-main);
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.8125rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
}

.btn-block {
  width: 100%;
}

.btn-icon {
  background: transparent;
  border: none;
  color: var(--text-subtle);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2px;
  border-radius: var(--radius-sm);
}
.btn-icon:hover {
  color: var(--danger);
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 1.5rem;
}

.modal-card {
  background-color: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  max-width: 440px;
  width: 100%;
  padding: 2rem;
  box-shadow: var(--shadow-xl);
}

.modal-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.logo-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-border);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 0.875rem;
}

.modal-header h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.375rem;
}

.modal-header p {
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.45;
}

.modal-body .form-group {
  margin-bottom: 1.25rem;
}

.alert-box {
  padding: 0.75rem 0.875rem;
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  margin-bottom: 1rem;
}

.alert-box.error {
  background-color: var(--danger-light);
  border: 1px solid var(--danger-border);
  color: var(--danger);
}

/* Loading Card */
.loading-card {
  text-align: center;
  padding: 2.5rem 2rem;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  margin: 0 auto 1.25rem;
  animation: spin 0.8s linear infinite;
}

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

.loading-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.375rem;
}

.loading-card p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}

.progress-bar-container {
  width: 100%;
  height: 6px;
  background-color: #f1f5f9;
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background-color: var(--primary);
  transition: width 0.3s ease;
}

/* Success Card */
.success-card {
  text-align: center;
  padding: 2.5rem 2rem;
}

.success-icon-badge {
  width: 56px;
  height: 56px;
  background-color: var(--success-light);
  color: var(--success);
  border: 1px solid var(--success-border);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
}

.success-header h2 {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.375rem;
}

.success-header p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 1.75rem;
}

.success-info-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.location-box {
  background-color: #f8fafc;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.25rem;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.location-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 500;
}

.location-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #0369a1;
  background-color: #e0f2fe;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
}

.location-code.success-text {
  color: #15803d;
  background-color: #dcfce7;
}

.checklist-section {
  text-align: left;
  background-color: #f8fafc;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.checklist-section h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.checklist-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.checklist-items {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background-color: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.check-item input[type="checkbox"] {
  width: 16px;
  height: 16px;
  margin-top: 0.25rem;
  accent-color: var(--primary);
  cursor: pointer;
}

.check-item label {
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--text-main);
  cursor: pointer;
  line-height: 1.45;
}

.check-item code {
  background-color: #f1f5f9;
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--text-main);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.success-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

/* Footer */
.app-footer {
  text-align: center;
  padding: 1.25rem;
  color: var(--text-subtle);
  font-size: 0.75rem;
  border-top: 1px solid var(--border);
  background-color: #ffffff;
}

.hidden {
  display: none !important;
}

/* Responsive */
@media (max-width: 680px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
  .full-width {
    grid-column: span 1;
  }
  .stepper {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
  .step-divider {
    display: none;
  }
  .header-container {
    flex-direction: column;
    align-items: flex-start;
  }
  .header-actions {
    width: 100%;
    justify-content: space-between;
  }
  .card {
    padding: 1.5rem 1.25rem;
  }
}