/* ========================================
   PRIME CONTRACTORS - REGISTRATION STYLES
   ======================================== */

/* CSS Variables */
:root {
  --primary-color: #ff8800;
  --primary-dark: #e6780a;
  --primary-light: #ffaa33;
  --secondary-color: #2b2b2b;
  --success-color: #059669;
  --warning-color: #d97706;
  --error-color: #dc2626;
  --background-color: #f8fafc;
  --surface-color: #ffffff;
  --text-primary: #2b2b2b;
  --text-secondary: #64748b;
  --border-color: #e2e8f0;
  --border-radius: 8px;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --transition: all 0.2s ease-in-out;
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background-color);
  font-size: 16px;
}

/* Container and Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ========================================
   LOADING SCREEN
   ======================================== */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  transition: opacity 0.3s ease-in-out;
}

.loading-screen.hidden {
  opacity: 0;
  pointer-events: none;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--border-color);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 20px;
}

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

/* ========================================
   HEADER
   ======================================== */
.header {
  background-color: var(--surface-color);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  width: 40px;
  height: 40px;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--primary-color);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn span {
  width: 24px;
  height: 3px;
  background-color: var(--text-primary);
  transition: var(--transition);
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  line-height: 1;
  gap: 8px;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-dark);
}

.btn-secondary {
  background-color: var(--secondary-color);
  color: white;
}

.btn-secondary:hover:not(:disabled) {
  background-color: #475569;
}

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

.btn-success:hover:not(:disabled) {
  background-color: #047857;
}

.btn-outline {
  background-color: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

.btn-outline:hover {
  background-color: var(--primary-color);
  color: white;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 14px;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 18px;
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  color: white;
  padding: 80px 0;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-text {
  width: 100%;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
}

.highlight {
  color: #fbbf24;
  display: block;
  margin-top: 8px;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: 32px;
  opacity: 0.9;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 32px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.feature {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  backdrop-filter: blur(10px);
}

.feature-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

/* Responsive adjustments for hero */
@media (max-width: 768px) {
  .hero {
    padding: 60px 0;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .hero-features {
    grid-template-columns: 1fr;
    max-width: 400px;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 40px 0;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .feature {
    padding: 8px;
    gap: 8px;
  }
  
  .feature-icon {
    font-size: 1.25rem;
  }
}

/* ========================================
   REGISTRATION SECTION
   ======================================== */
.registration-section {
  padding: 80px 0;
}

.registration-wrapper {
  max-width: 800px;
  margin: 0 auto;
  background-color: var(--surface-color);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

/* Progress Steps */
.progress-steps {
  display: flex;
  background-color: #f1f5f9;
  padding: 24px;
  overflow-x: auto;
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  min-width: 120px;
  position: relative;
}

.step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 20px;
  right: -50%;
  width: 100%;
  height: 2px;
  background-color: var(--border-color);
  z-index: 1;
}

.step.active:not(:last-child)::after {
  background-color: var(--primary-color);
}

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--border-color);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  margin-bottom: 8px;
  position: relative;
  z-index: 2;
  transition: var(--transition);
}

.step.active .step-number,
.step.completed .step-number {
  background-color: var(--primary-color);
  color: white;
}

.step-label {
  font-size: 14px;
  text-align: center;
  color: var(--text-secondary);
  font-weight: 500;
}

.step.active .step-label {
  color: var(--primary-color);
}

/* ========================================
   FORM STYLES
   ======================================== */
.registration-form {
  padding: 40px;
}

.form-step {
  display: none;
}

.form-step.active {
  display: block;
}

.form-header {
  text-align: center;
  margin-bottom: 40px;
}

.form-header h2 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.form-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

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

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

.form-group label {
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 16px;
  transition: var(--transition);
  background-color: var(--surface-color);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
  border-color: var(--error-color);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

/* Password Input */
.password-input {
  position: relative;
}

.password-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 18px;
  padding: 4px;
}

.password-strength {
  margin-top: 8px;
}

.strength-bar {
  height: 4px;
  background-color: var(--border-color);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 4px;
}

.strength-bar::after {
  content: '';
  height: 100%;
  background-color: var(--error-color);
  display: block;
  width: 0%;
  transition: var(--transition);
}

.strength-bar.weak::after {
  width: 33%;
  background-color: var(--error-color);
}

.strength-bar.medium::after {
  width: 66%;
  background-color: var(--warning-color);
}

.strength-bar.strong::after {
  width: 100%;
  background-color: var(--success-color);
}

.strength-text {
  font-size: 14px;
  color: var(--text-secondary);
}

/* Error Messages */
.error-message {
  color: var(--error-color);
  font-size: 14px;
  margin-top: 4px;
  min-height: 20px;
}

.form-errors {
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: var(--border-radius);
  padding: 16px;
  margin-bottom: 24px;
}

.error-list .error-message {
  margin: 0;
  min-height: auto;
}

/* ========================================
   SPECIALTIES AND CHECKBOXES
   ======================================== */
.specialties-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin-top: 8px;
}

.specialty-item,
.checkbox-item {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  padding: 12px;
  border-radius: var(--border-radius);
  transition: var(--transition);
  user-select: none;
}

.specialty-item:hover,
.checkbox-item:hover {
  background-color: #f8fafc;
}

.specialty-item input[type="checkbox"],
.checkbox-item input[type="checkbox"] {
  display: none;
}

.checkmark {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
}

.specialty-item input[type="checkbox"]:checked + .checkmark,
.checkbox-item input[type="checkbox"]:checked + .checkmark {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.specialty-item input[type="checkbox"]:checked + .checkmark::after,
.checkbox-item input[type="checkbox"]:checked + .checkmark::after {
  content: '✓';
  color: white;
  font-size: 14px;
  font-weight: bold;
}

.checkbox-item.large {
  padding: 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  margin-bottom: 12px;
}

.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 8px;
}

/* ========================================
   FILE UPLOAD
   ======================================== */
.document-upload-section h3 {
  color: var(--text-primary);
  margin: 32px 0 16px 0;
  font-size: 1.25rem;
}

.document-upload-section h3:first-child {
  margin-top: 0;
}

.document-upload {
  margin-bottom: 24px;
}

.file-upload-area {
  border: 2px dashed var(--border-color);
  border-radius: var(--border-radius);
  padding: 40px 20px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  background-color: #fafafa;
}

.file-upload-area:hover {
  border-color: var(--primary-color);
  background-color: #f0f7ff;
}

.file-upload-area.dragover {
  border-color: var(--primary-color);
  background-color: #eff6ff;
}

.file-upload-area input[type="file"] {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.upload-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.upload-icon {
  font-size: 3rem;
  margin-bottom: 8px;
}

.upload-text {
  font-weight: 500;
  color: var(--text-primary);
}

.upload-formats {
  font-size: 14px;
  color: var (--text-secondary);
}

.file-preview {
  display: none;
  text-align: left;
  padding: 16px;
  background-color: #f8fafc;
  border-radius: var(--border-radius);
  margin-top: 16px;
}

.file-preview.active {
  display: block;
}

.file-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-color);
}

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

.file-icon {
  font-size: 1.5rem;
}

.file-info {
  flex: 1;
}

.file-name {
  font-weight: 500;
  color: var(--text-primary);
}

.file-size {
  font-size: 14px;
  color: var(--text-secondary);
}

.file-remove {
  background: none;
  border: none;
  color: var(--error-color);
  cursor: pointer;
  font-size: 18px;
  padding: 4px;
}

/* ========================================
   REGISTRATION SUMMARY
   ======================================== */
.registration-summary {
  background-color: #f8fafc;
  border-radius: var(--border-radius);
  padding: 24px;
  border: 1px solid var(--border-color);
}

.registration-summary h3 {
  margin-bottom: 16px;
  color: var(--text-primary);
}

.summary-section {
  margin-bottom: 16px;
}

.summary-section h4 {
  color: var(--text-primary);
  margin-bottom: 8px;
}

.summary-item {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  border-bottom: 1px solid #e5e7eb;
}

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

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

.summary-value {
  color: var(--text-primary);
  font-weight: 500;
}

/* Terms Section */
.terms-section {
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 24px;
  background-color: #fafafa;
}

.notification-preferences {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 8px;
}

/* ========================================
   FORM NAVIGATION
   ======================================== */
.form-navigation {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 40px;
  border-top: 1px solid var(--border-color);
  margin-top: 40px;
}

.form-messages {
  margin-top: 20px;
  padding: 16px;
  border-radius: var(--border-radius);
  display: none;
}

.form-messages.success {
  background-color: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #166534;
  display: block;
}

.form-messages.error {
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  color: #dc2626;
  display: block;
}

/* ========================================
   MODAL
   ======================================== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

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

.modal-content {
  background-color: var(--surface-color);
  border-radius: 16px;
  padding: 40px;
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9);
  transition: var(--transition);
}

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

.success-content {
  text-align: center;
}

.success-icon {
  font-size: 4rem;
  margin-bottom: 24px;
}

.success-content h2 {
  color: var(--text-primary);
  margin-bottom: 16px;
}

.registration-id {
  background-color: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: var(--border-radius);
  padding: 16px;
  margin: 24px 0;
  color: var(--success-color);
}

.next-steps {
  text-align: left;
  margin: 32px 0;
  background-color: #f8fafc;
  padding: 24px;
  border-radius: var(--border-radius);
}

.next-steps h3 {
  margin-bottom: 16px;
  color: var(--text-primary);
}

.next-steps ol {
  padding-left: 20px;
}

.next-steps li {
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.contact-info {
  background-color: #eff6ff;
  border-radius: var(--border-radius);
  padding: 20px;
  margin: 24px 0;
  text-align: center;
}

.modal-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 32px;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  background-color: var(--text-primary);
  color: white;
  padding: 60px 0 20px;
  margin-top: 80px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h4 {
  font-size: 1.25rem;
  margin-bottom: 16px;
  color: white;
}

.footer-section p {
  color: #94a3b8;
  margin-bottom: 16px;
}

.footer-section a {
  display: block;
  color: #94a3b8;
  text-decoration: none;
  margin-bottom: 8px;
  transition: var(--transition);
}

.footer-section a:hover {
  color: white;
}

.social-links {
  display: flex;
  gap: 16px;
}

.social-link {
  display: inline-flex !important;
  margin-bottom: 0 !important;
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid #374151;
  color: #94a3b8;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-features {
    grid-template-columns: 1fr;
  }

  .nav {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .form-group.full-width {
    grid-column: span 1;
  }

  .progress-steps {
    padding: 16px;
  }

  .step-label {
    font-size: 12px;
  }

  .registration-form {
    padding: 24px;
  }

  .specialties-grid {
    grid-template-columns: 1fr;
  }

  .form-navigation {
    flex-direction: column;
    gap: 16px;
  }

  .modal-content {
    padding: 24px;
  }

  .modal-actions {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero {
    padding: 40px 0;
  }

  .hero-title {
    font-size: 2rem;
  }

  .registration-section {
    padding: 40px 0;
  }

  .registration-form {
    padding: 16px;
  }

  .form-header h2 {
    font-size: 1.5rem;
  }

  .progress-steps {
    padding: 12px;
    overflow-x: scroll;
  }

  .step {
    min-width: 100px;
  }

  .step-number {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }

  .step-label {
    font-size: 11px;
  }
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(0);
  }
}

.form-step.active {
  animation: fadeIn 0.3s ease-in-out;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.hidden {
  display: none !important;
}

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

.p-1 { padding: 8px; }
.p-2 { padding: 16px; }
.p-3 { padding: 24px; }
.p-4 { padding: 32px; }

/* Print Styles */
@media print {
  .header,
  .footer,
  .form-navigation,
  .progress-steps {
    display: none;
  }

  body {
    background-color: white;
  }

  .registration-wrapper {
    box-shadow: none;
    border: 1px solid #000;
  }
}