/* =====================================================
   Premium Authentication Styles - Mobile Optimized
   ===================================================== */

/* Auth Modal Overlay Enhancement */
#register-modal {
  padding: 0;
}

#register-modal.show {
  align-items: flex-end;
}

@media (min-width: 769px) {
  #register-modal.show {
    align-items: center;
  }
}

/* Auth Modal Content - Modern Glass Design */
#register-modal .modal-content {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.95) 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 24px 24px 0 0;
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow:
    0 -10px 50px rgba(0, 0, 0, 0.15),
    0 0 0 1px rgba(255, 255, 255, 0.3) inset;
  padding: 28px 20px;
  padding-bottom: calc(24px + max(16px, env(safe-area-inset-bottom)));
  width: 100%;
  max-width: 100%;
  max-height: 85vh;
  margin: 0;
  animation: slideUpAuth 0.4s cubic-bezier(0.32, 0.72, 0, 1);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  box-sizing: border-box;
}

@media (min-width: 769px) {
  #register-modal .modal-content {
    border-radius: 24px;
    max-width: 440px;
    padding: 40px;
    margin: 20px;
    max-height: 90vh;
    animation: scaleInAuth 0.35s cubic-bezier(0.32, 0.72, 0, 1);
  }
}

/* Auth Slide Up Animation for Mobile */
@keyframes slideUpAuth {
  from {
    opacity: 0;
    transform: translateY(100%);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleInAuth {
  from {
    opacity: 0;
    transform: scale(0.92) translateY(10px);
  }

  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* Auth Modal Close Button */
#register-modal .close-modal {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: #64748b;
  background: rgba(100, 116, 139, 0.08);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 10;
}

#register-modal .close-modal:hover {
  background: rgba(255, 49, 49, 0.1);
  color: #ff3131;
  transform: rotate(90deg);
}

#register-modal .close-modal:active {
  transform: scale(0.92) rotate(90deg);
}

/* Auth Header */
#register-modal h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: #1e293b;
  text-align: center;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

/* Auth Header Icon Badge */
#register-modal h2::before {
  content: '🚀';
  display: block;
  font-size: 2.5rem;
  margin-bottom: 12px;
}

/* Auth Subtitle */
.auth-subtitle {
  text-align: center;
  color: #64748b;
  font-size: 0.95rem;
  font-weight: 500;
  margin: 0 0 8px 0;
  padding: 0;
  line-height: 1.5;
}

.auth-subtitle::before {
  content: '✓ ';
  color: #10b981;
}

/* Login mode emoji */
#register-modal.login-mode h2::before {
  content: '👋';
}

/* Auth Forms */
#register-form,
#login-form {
  margin-top: 24px;
}

/* Auth Form Groups */
#register-modal .form-group {
  margin-bottom: 20px;
  animation: fadeInUpAuth 0.4s cubic-bezier(0.4, 0, 0.2, 1) backwards;
}

#register-modal .form-group:nth-child(1) {
  animation-delay: 0.05s;
}

#register-modal .form-group:nth-child(2) {
  animation-delay: 0.1s;
}

#register-modal .form-group:nth-child(3) {
  animation-delay: 0.15s;
}

@keyframes fadeInUpAuth {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Auth Labels with Icon Prefix */
#register-modal .form-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  font-weight: 600;
  color: #374151;
  font-size: 0.9rem;
  letter-spacing: 0.01em;
}

#register-modal .form-group label::before {
  display: none;
}

/* Auth Input Fields */
#register-modal .form-group input[type="email"],
#register-modal .form-group input[type="password"],
#register-modal .form-group input[type="text"] {
  width: 100%;
  padding: 16px 18px;
  border: 2px solid #e5e7eb;
  border-radius: 14px;
  font-size: 1rem;
  font-weight: 500;
  color: #1e293b;
  background: #ffffff;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  -webkit-appearance: none;
  appearance: none;
  min-height: 56px;
  font-family: 'Outfit', sans-serif;
}

#register-modal .form-group input::placeholder {
  color: #94a3b8;
  font-weight: 400;
}

#register-modal .form-group input:focus {
  outline: none;
  border-color: #ff3131;
  box-shadow:
    0 0 0 4px rgba(255, 49, 49, 0.12),
    0 4px 12px rgba(0, 0, 0, 0.05);
  background: #fff;
  transform: translateY(-1px);
}

/* Input with Icon */
#register-modal .form-group {
  position: relative;
}

/* Checkbox Label Enhancement */
#register-modal .checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  background: linear-gradient(135deg, #fef2f2 0%, #fefce8 100%);
  border-radius: 14px;
  border: 2px solid #fee2e2;
  cursor: pointer;
  transition: all 0.25s ease;
  min-height: auto;
  margin-bottom: 8px;
}

#register-modal .checkbox-label:hover {
  border-color: #fca5a5;
  background: linear-gradient(135deg, #fee2e2 0%, #fef9c3 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 49, 49, 0.1);
}

#register-modal .checkbox-label input[type="checkbox"] {
  width: 24px;
  height: 24px;
  min-width: 24px;
  min-height: 24px;
  margin: 0;
  flex-shrink: 0;
  accent-color: #ff3131;
  cursor: pointer;
  border-radius: 6px;
}

#register-modal .checkbox-label span {
  font-size: 0.88rem;
  line-height: 1.5;
  color: #475569;
  flex: 1;
}

#register-modal .checkbox-label a {
  color: #ff3131;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s ease;
}

#register-modal .checkbox-label a:hover {
  color: #dc2626;
  text-decoration: underline;
}

/* Primary Submit Button */
#register-modal .btn.btn-primary,
#register-form button[type="submit"],
#login-form button[type="submit"] {
  width: 100%;
  padding: 16px 24px;
  background: linear-gradient(135deg, #ff3131 0%, #ff6b6b 50%, #ff3131 100%);
  background-size: 200% 100%;
  color: white;
  border: none;
  border-radius: 14px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow:
    0 4px 14px rgba(255, 49, 49, 0.35),
    0 2px 6px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
  animation: fadeInUpAuth 0.4s cubic-bezier(0.4, 0, 0.2, 1) 0.2s backwards;
}

#register-modal .btn.btn-primary:hover,
#register-form button[type="submit"]:hover,
#login-form button[type="submit"]:hover {
  background-position: 100% 0;
  transform: translateY(-2px);
  box-shadow:
    0 8px 24px rgba(255, 49, 49, 0.4),
    0 4px 10px rgba(0, 0, 0, 0.12);
}

#register-modal .btn.btn-primary:active,
#register-form button[type="submit"]:active,
#login-form button[type="submit"]:active {
  transform: translateY(0);
  box-shadow:
    0 2px 8px rgba(255, 49, 49, 0.35);
}

/* Button Shine Effect */
#register-modal .btn.btn-primary::before,
#register-form button[type="submit"]::before,
#login-form button[type="submit"]::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg,
      transparent,
      rgba(255, 255, 255, 0.25),
      transparent);
  transition: left 0.5s ease;
}

#register-modal .btn.btn-primary:hover::before,
#register-form button[type="submit"]:hover::before,
#login-form button[type="submit"]:hover::before {
  left: 100%;
}

/* Divider Styling */
#register-modal .divider {
  display: flex;
  align-items: center;
  margin: 24px 0;
  gap: 16px;
}

#register-modal .divider hr {
  flex: 1;
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, #e5e7eb, transparent);
}

#register-modal .divider span {
  color: #94a3b8;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Google Login Button */
#register-modal .google-login-btn {
  width: 100%;
  padding: 14px 24px;
  background: #ffffff;
  color: #374151;
  border: 2px solid #e5e7eb;
  border-radius: 14px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  animation: fadeInUpAuth 0.4s cubic-bezier(0.4, 0, 0.2, 1) 0.25s backwards;
}

#register-modal .google-login-btn img {
  width: 22px;
  height: 22px;
}

#register-modal .google-login-btn:hover {
  background: #f8fafc;
  border-color: #d1d5db;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
}

#register-modal .google-login-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

/* Auth Switch Link */
#register-modal .auth-switch {
  text-align: center;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid #f1f5f9;
  color: #64748b;
  font-size: 0.95rem;
  animation: fadeInUpAuth 0.4s cubic-bezier(0.4, 0, 0.2, 1) 0.3s backwards;
}

#register-modal .auth-switch a {
  color: #ff3131;
  text-decoration: none;
  font-weight: 700;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

#register-modal .auth-switch a:hover {
  color: #dc2626;
  text-decoration: underline;
}

/* =====================================================
   Mobile Optimizations
   ===================================================== */
@media (max-width: 480px) {
  #register-modal .modal-content {
    padding: 20px 16px;
    padding-bottom: calc(20px + max(16px, env(safe-area-inset-bottom)));
    border-radius: 20px 20px 0 0;
    max-height: 88vh;
  }

  #register-modal h2 {
    font-size: 1.35rem;
    margin-bottom: 4px;
  }

  #register-modal h2::before {
    font-size: 1.8rem;
    margin-bottom: 8px;
  }

  .auth-subtitle {
    font-size: 0.85rem;
    margin-bottom: 4px;
  }

  #register-form,
  #login-form {
    margin-top: 16px;
  }

  #register-modal .form-group {
    margin-bottom: 14px;
  }

  #register-modal .form-group label {
    font-size: 0.85rem;
    margin-bottom: 6px;
  }

  #register-modal .form-group input[type="email"],
  #register-modal .form-group input[type="password"],
  #register-modal .form-group input[type="text"] {
    padding: 12px 14px;
    font-size: 16px;
    /* Prevents iOS zoom */
    min-height: 48px;
    border-radius: 12px;
  }

  #register-modal .btn.btn-primary,
  #register-form button[type="submit"],
  #login-form button[type="submit"] {
    padding: 12px 18px;
    font-size: 0.95rem;
    min-height: 48px;
    border-radius: 12px;
  }

  #register-modal .google-login-btn {
    padding: 10px 18px;
    min-height: 46px;
    font-size: 0.88rem;
    border-radius: 12px;
  }

  #register-modal .checkbox-label {
    padding: 12px;
    border-radius: 12px;
  }

  #register-modal .checkbox-label span {
    font-size: 0.8rem;
  }

  #register-modal .divider {
    margin: 16px 0;
  }

  #register-modal .auth-switch {
    font-size: 0.88rem;
    margin-top: 16px;
    padding-top: 14px;
  }

  #register-modal .close-modal {
    top: 10px;
    right: 10px;
    width: 34px;
    height: 34px;
    font-size: 1.5rem;
    border-radius: 10px;
  }
}

/* Very Small Screens */
@media (max-width: 360px) {
  #register-modal .modal-content {
    padding: 24px 16px;
    padding-bottom: calc(24px + max(16px, env(safe-area-inset-bottom)));
  }

  #register-modal h2 {
    font-size: 1.35rem;
  }

  #register-modal h2::before {
    font-size: 2rem;
    margin-bottom: 8px;
  }

  #register-modal .form-group {
    margin-bottom: 16px;
  }

  #register-modal .form-group label {
    font-size: 0.85rem;
    margin-bottom: 8px;
  }

  #register-modal .checkbox-label {
    padding: 12px;
  }

  #register-modal .checkbox-label span {
    font-size: 0.8rem;
  }
}

/* =====================================================
   Landscape Mode on Mobile
   ===================================================== */
@media (max-height: 600px) and (orientation: landscape) {
  #register-modal .modal-content {
    max-height: 96vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 20px;
    border-radius: 16px;
  }

  #register-modal h2::before {
    font-size: 1.8rem;
    margin-bottom: 8px;
  }

  #register-modal h2 {
    font-size: 1.3rem;
  }

  #register-modal .form-group {
    margin-bottom: 14px;
  }

  #register-modal .divider {
    margin: 16px 0;
  }
}

/* =====================================================
   Loading State Enhancement
   ===================================================== */
#register-modal .btn.loading,
#register-modal button[type="submit"].loading {
  position: relative;
  pointer-events: none;
  opacity: 0.85;
}

#register-modal .btn.loading::after,
#register-modal button[type="submit"].loading::after {
  content: '';
  position: absolute;
  width: 22px;
  height: 22px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spinAuth 0.8s linear infinite;
}

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

/* =====================================================
   Success State
   ===================================================== */
#register-modal .btn.success {
  background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
}

/* =====================================================
   Form Validation States
   ===================================================== */
#register-modal .form-group input:valid:not(:placeholder-shown) {
  border-color: #10b981;
}

#register-modal .form-group input:invalid:not(:placeholder-shown):not(:focus) {
  border-color: #f59e0b;
}

/* =====================================================
   Accessibility Enhancements
   ===================================================== */
@media (prefers-reduced-motion: reduce) {

  #register-modal .modal-content,
  #register-modal .form-group,
  #register-modal .btn,
  #register-modal .google-login-btn,
  #register-modal .auth-switch {
    animation: none !important;
    transition: none !important;
  }
}

/* Focus visible for keyboard navigation */
#register-modal button:focus-visible,
#register-modal a:focus-visible,
#register-modal input:focus-visible {
  outline: 3px solid #ff3131;
  outline-offset: 2px;
}

#register-modal input:focus:not(:focus-visible) {
  outline: none;
}

/* =====================================================
   Dark Mode Support
   ===================================================== */
@media (prefers-color-scheme: dark) {
  #register-modal .modal-content {
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.98) 0%, rgba(15, 23, 42, 0.98) 100%);
    border-color: rgba(255, 255, 255, 0.1);
  }

  #register-modal h2 {
    color: #f1f5f9;
  }

  #register-modal .form-group label {
    color: #cbd5e1;
  }

  #register-modal .form-group input {
    background: rgba(51, 65, 85, 0.6);
    border-color: rgba(148, 163, 184, 0.2);
    color: #f1f5f9;
  }

  #register-modal .form-group input::placeholder {
    color: #64748b;
  }

  #register-modal .form-group input:focus {
    background: rgba(51, 65, 85, 0.8);
    border-color: #ff3131;
    box-shadow: 0 0 0 4px rgba(255, 49, 49, 0.2);
  }

  #register-modal .checkbox-label {
    background: linear-gradient(135deg, rgba(127, 29, 29, 0.2) 0%, rgba(120, 53, 15, 0.2) 100%);
    border-color: rgba(252, 165, 165, 0.3);
  }

  #register-modal .checkbox-label:hover {
    background: linear-gradient(135deg, rgba(127, 29, 29, 0.3) 0%, rgba(120, 53, 15, 0.3) 100%);
    border-color: rgba(252, 165, 165, 0.5);
  }

  #register-modal .checkbox-label span {
    color: #cbd5e1;
  }

  #register-modal .divider hr {
    background: linear-gradient(90deg, transparent, rgba(148, 163, 184, 0.3), transparent);
  }

  #register-modal .divider span {
    color: #64748b;
  }

  #register-modal .google-login-btn {
    background: rgba(51, 65, 85, 0.6);
    border-color: rgba(148, 163, 184, 0.2);
    color: #f1f5f9;
  }

  #register-modal .google-login-btn:hover {
    background: rgba(51, 65, 85, 0.8);
    border-color: rgba(148, 163, 184, 0.4);
  }

  #register-modal .auth-switch {
    border-top-color: rgba(148, 163, 184, 0.2);
    color: #94a3b8;
  }

  #register-modal .close-modal {
    color: #94a3b8;
    background: rgba(100, 116, 139, 0.2);
  }

  #register-modal .close-modal:hover {
    background: rgba(255, 49, 49, 0.2);
    color: #ff6b6b;
  }
}