/* OMNI Platform Authentication Styles */
/* Color scheme: White/Off-white/Blue with Dark Mode */

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

:root {
  /* Light mode (default) */
  --bg-primary: #FFFFFF;
  --bg-secondary: #F8FAFC;
  --bg-tertiary: #F1F5F9;
  --accent-blue: #3B82F6;
  --accent-blue-hover: #2563EB;
  --accent-blue-light: #DBEAFE;
  --text-primary: #1F2937;
  --text-secondary: #6B7280;
  --text-muted: #9CA3AF;
  --border: #E5E7EB;
  --border-focus: #3B82F6;
  --error: #EF4444;
  --error-bg: #FEE2E2;
  --success: #22C55E;
  --shadow: rgba(0, 0, 0, 0.1);
  --shadow-lg: rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] {
  --bg-primary: #0F172A;
  --bg-secondary: #1E293B;
  --bg-tertiary: #334155;
  --accent-blue: #60A5FA;
  --accent-blue-hover: #93C5FD;
  --accent-blue-light: #1E3A5F;
  --text-primary: #F1F5F9;
  --text-secondary: #CBD5E1;
  --text-muted: #64748B;
  --border: #334155;
  --border-focus: #60A5FA;
  --error: #F87171;
  --error-bg: #450A0A;
  --success: #4ADE80;
  --shadow: rgba(0, 0, 0, 0.3);
  --shadow-lg: rgba(0, 0, 0, 0.4);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-secondary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
}

/* Auth Container */
.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.auth-card {
  background: var(--bg-primary);
  border-radius: 16px;
  box-shadow: 0 4px 6px var(--shadow), 0 10px 20px var(--shadow-lg);
  padding: 2.5rem;
  width: 100%;
  max-width: 420px;
  border: 1px solid var(--border);
}

.auth-card-wide {
  max-width: 560px;
}

/* Header */
.auth-header {
  text-align: center;
  margin-bottom: 2rem;
}

.brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-blue);
  text-decoration: none;
  letter-spacing: 0.1em;
  display: inline-block;
  margin-bottom: 1.5rem;
}

.auth-header h1 {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.auth-header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Form Styles */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 480px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
}

.required {
  color: var(--error);
}

.form-group input {
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-blue-light);
}

.form-group input::placeholder {
  color: var(--text-muted);
}

.form-section {
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  margin-top: 0.5rem;
}

.form-section h3 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Form Options */
.form-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  accent-color: var(--accent-blue);
}

.checkbox-label a {
  color: var(--accent-blue);
  text-decoration: none;
}

.checkbox-label a:hover {
  text-decoration: underline;
}

.forgot-link {
  color: var(--accent-blue);
  text-decoration: none;
  font-weight: 500;
}

.forgot-link:hover {
  text-decoration: underline;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--accent-blue-hover);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--border);
}

.btn-full {
  width: 100%;
}

/* Social Buttons */
.social-buttons {
  display: flex;
  gap: 0.75rem;
}

.btn-social {
  flex: 1;
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 1px solid var(--border);
  padding: 0.75rem;
  font-size: 0.875rem;
}

.btn-social:hover {
  background: var(--bg-secondary);
  border-color: var(--text-muted);
}

.btn-social svg {
  flex-shrink: 0;
}

/* Divider */
.divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1.5rem 0;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.divider span {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Footer */
.auth-footer {
  text-align: center;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.auth-footer p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.auth-footer a {
  color: var(--accent-blue);
  text-decoration: none;
  font-weight: 500;
}

.auth-footer a:hover {
  text-decoration: underline;
}

/* Error Message */
.error-message {
  background: var(--error-bg);
  color: var(--error);
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}

.modal-content {
  background: var(--bg-primary);
  padding: 2rem;
  border-radius: 16px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 20px 25px -5px var(--shadow-lg);
}

.modal-content h2 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.modal-content p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
}

.modal-content .form-group {
  margin-bottom: 1rem;
}

.modal-content .btn {
  margin-bottom: 0.5rem;
}

/* Responsive */
@media (max-width: 480px) {
  .auth-card {
    padding: 1.5rem;
  }
  
  .social-buttons {
    flex-direction: column;
  }
  
  .auth-header h1 {
    font-size: 1.5rem;
  }
}

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');