/* ============================================
   AUTH PAGE STYLES
   Login / Signup split layout
   ============================================ */

.auth-main {
  flex: 1;
  display: flex;
  align-items: stretch;
  min-height: calc(100vh - 56px);
  background: var(--bg-subtle);
}

.auth-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
}

/* ============================================
   LEFT: BRANDING PANEL
   ============================================ */
.auth-branding {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 50%, var(--primary-dark) 100%);
  color: var(--text-inverse);
  padding: var(--space-12);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.auth-branding::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  opacity: 0.15;
  pointer-events: none;
}

.auth-branding-content {
  position: relative;
  z-index: 1;
  max-width: 500px;
}

.auth-brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-10);
}

.auth-brand-logo img {
  width: 48px;
  height: 48px;
  filter: brightness(0) invert(1);
}

.auth-brand-logo span {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--text-inverse);
}

.auth-brand-headline {
  font-size: clamp(2rem, 3vw, 2.75rem);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-4);
  color: var(--text-inverse);
}

.auth-brand-headline .gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-300) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.auth-brand-tagline {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  opacity: 0.9;
  margin-bottom: var(--space-10);
}

.auth-features-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-bottom: var(--space-10);
}

.auth-feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.auth-feature-icon {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.auth-feature-item strong {
  display: block;
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  margin-bottom: 2px;
  color: var(--text-inverse);
}

.auth-feature-item p {
  font-size: var(--text-sm);
  opacity: 0.85;
  margin: 0;
  color: var(--text-inverse);
}

.auth-testimonial {
  padding: var(--space-5);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
}

.auth-testimonial-text {
  font-size: var(--text-sm);
  font-style: italic;
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-3);
  color: var(--text-inverse);
}

.auth-testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.auth-testimonial-avatar {
  width: 40px;
  height: 40px;
  background: var(--accent);
  color: var(--neutral-900);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-bold);
  font-size: var(--text-sm);
}

.auth-testimonial-author strong {
  display: block;
  font-size: var(--text-sm);
  color: var(--text-inverse);
}

.auth-testimonial-author span {
  font-size: var(--text-xs);
  opacity: 0.75;
  color: var(--text-inverse);
}

/* ============================================
   RIGHT: FORM PANEL
   ============================================ */
.auth-form-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8);
  background: var(--surface);
}

.auth-form-container {
  width: 100%;
  max-width: 420px;
}

/* Tabs */
.auth-tabs {
  display: flex;
  gap: var(--space-1);
  background: var(--bg-muted);
  padding: var(--space-1);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-8);
}

.auth-tab {
  flex: 1;
  padding: var(--space-3);
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.auth-tab:hover:not(.active) {
  color: var(--text);
}

.auth-tab.active {
  background: var(--surface);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* Form */
.auth-form {
  animation: auth-fade-in var(--transition-base);
}

@keyframes auth-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.auth-form-header {
  margin-bottom: var(--space-6);
}

.auth-form-header h1 {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--text);
  margin-bottom: var(--space-2);
}

.auth-form-header p {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin: 0;
}

.auth-form-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.auth-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1-5);
}

.auth-field label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text);
}

.auth-input {
  width: 100%;
  padding: var(--space-3) var(--space-3);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.auth-input::placeholder {
  color: var(--text-subtle);
}

.auth-input:hover:not(:disabled):not(:focus) {
  border-color: var(--text-subtle);
}

.auth-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: var(--focus-ring);
}

.auth-input.error {
  border-color: var(--error);
}

.auth-field-hint {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin: 0;
}

.auth-form-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.auth-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.4;
}

.auth-checkbox input[type="checkbox"] {
  width: 16px;
  height: 16px;
  margin-top: 2px;
  accent-color: var(--primary);
  cursor: pointer;
  flex-shrink: 0;
}

.auth-link {
  color: var(--primary);
  font-weight: var(--font-medium);
  text-decoration: none;
  font-size: var(--text-sm);
}

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

.auth-error {
  padding: var(--space-3);
  background: var(--error-light);
  border: 1px solid var(--error);
  border-left: 4px solid var(--error);
  border-radius: var(--radius-md);
  color: var(--error-dark);
  font-size: var(--text-sm);
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
}

.auth-error::before {
  content: '⚠';
  flex-shrink: 0;
}

.auth-submit {
  width: 100%;
  padding: var(--space-3);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  margin-top: var(--space-2);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

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

.auth-form-footer {
  text-align: center;
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
}

.auth-form-footer p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin: 0;
}

/* Trust indicators */
.auth-trust {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-subtle);
  flex-wrap: wrap;
}

.auth-trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-1-5);
  font-size: var(--text-xs);
  color: var(--text-muted);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .auth-container {
    grid-template-columns: 1fr;
  }
  
  .auth-branding {
    display: none; /* Hide branding panel on tablet/mobile */
  }
  
  .auth-form-panel {
    padding: var(--space-6);
  }
}

@media (max-width: 480px) {
  .auth-form-panel {
    padding: var(--space-4);
  }
  
  .auth-form-header h1 {
    font-size: var(--text-xl);
  }
  
  .auth-form-row {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
}