/* AltritionOS Registration Modal CSS - Ultra Modern Glassmorphism Theme */

:root {
  --alt-primary: #4F46E5;
  --alt-primary-hover: #4338CA;
  --alt-secondary: #06B6D4;
  --alt-accent: #10B981;
  --alt-bg-dark: #0F172A;
  --alt-text-main: #1E293B;
  --alt-text-muted: #64748B;
  --alt-border: #E2E8F0;
  --alt-radius: 16px;
  --alt-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --alt-font: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.altrition-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-family: var(--alt-font);
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  background: linear-gradient(135deg, var(--alt-primary) 0%, #3B82F6 100%);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.altrition-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.45);
  background: linear-gradient(135deg, var(--alt-primary-hover) 0%, #2563EB 100%);
}

.altrition-btn:active {
  transform: translateY(0);
}

/* Modal Overlay */
.altrition-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 999999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

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

/* Modal Dialog */
.altrition-modal-dialog {
  position: relative;
  width: 100%;
  max-width: 580px;
  max-height: 90vh;
  overflow-y: auto;
  background: #ffffff;
  border-radius: var(--alt-radius);
  box-shadow: var(--alt-shadow);
  border: 1px solid rgba(255, 255, 255, 0.8);
  font-family: var(--alt-font);
  transform: scale(0.95) translateY(10px);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  padding: 32px;
}

.altrition-modal-overlay.active .altrition-modal-dialog {
  transform: scale(1) translateY(0);
}

.altrition-modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #F1F5F9;
  border: none;
  font-size: 24px;
  line-height: 1;
  color: #64748B;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.altrition-modal-close:hover {
  background: #E2E8F0;
  color: #0F172A;
}

/* Header */
.altrition-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--alt-primary);
  background: rgba(79, 70, 229, 0.1);
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 8px;
}

.altrition-modal-title {
  margin: 0 0 6px 0;
  font-size: 24px;
  font-weight: 700;
  color: var(--alt-text-main);
}

.altrition-modal-subtitle {
  margin: 0 0 24px 0;
  font-size: 14px;
  color: var(--alt-text-muted);
  line-height: 1.5;
}

/* Form Controls */
.altrition-registration-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.altrition-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 540px) {
  .altrition-form-grid {
    grid-template-columns: 1fr;
  }
}

.altrition-field-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.altrition-field-group label {
  font-size: 13px;
  font-weight: 600;
  color: #334155;
}

.altrition-field-group label .req {
  color: #EF4444;
}

.altrition-field-group input,
.altrition-field-group select {
  width: 100%;
  padding: 12px 14px;
  font-size: 14px;
  font-family: var(--alt-font);
  color: #0F172A;
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: 10px;
  outline: none;
  transition: all 0.2s ease;
  box-sizing: border-box;
}

.altrition-field-group input:focus,
.altrition-field-group select:focus {
  background: #ffffff;
  border-color: var(--alt-primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.altrition-field-help {
  margin: 4px 0 0 0;
  font-size: 11px;
  color: #94A3B8;
}

/* Alerts */
.altrition-alert {
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 13px;
  line-height: 1.4;
}

.altrition-alert-danger {
  background: #FEF2F2;
  color: #991B1B;
  border: 1px solid #FCA5A5;
}

.altrition-alert-success {
  background: #ECFDF5;
  color: #065F46;
  border: 1px solid #6EE7B7;
}

/* Actions */
.altrition-submit-btn {
  width: 100%;
  padding: 14px;
  font-size: 16px;
  font-weight: 600;
  color: #ffffff;
  background: linear-gradient(135deg, var(--alt-primary) 0%, #3B82F6 100%);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
  transition: all 0.25s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.altrition-submit-btn:hover {
  background: linear-gradient(135deg, var(--alt-primary-hover) 0%, #2563EB 100%);
  box-shadow: 0 6px 18px rgba(79, 70, 229, 0.4);
}

.altrition-submit-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.altrition-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: alt-spin 0.8s linear infinite;
}

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

.altrition-footer-note {
  margin: 10px 0 0 0;
  text-align: center;
  font-size: 12px;
  color: #94A3B8;
}