/* ==============================================
   Auth Layout — Login / Register
   ============================================== */

.auth-layout {
  min-height: 100vh;
  display: flex;
}

/* ---- Left Panel — Branding ---- */
.auth-brand-panel {
  width: 45%;
  background: var(--gradient-primary);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--spacing-8);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.auth-brand-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--spacing-4);
  z-index: 1;
}

.auth-brand-logo {
  width: 120px;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-brand-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.auth-brand-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--color-white);
  margin: 0;
  line-height: 1.2;
}

.auth-brand-tagline {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.9);
  margin: 0;
  line-height: 1.5;
  max-width: 320px;
}

.auth-brand-vector {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-6) 0;
  z-index: 1;
}

.auth-brand-vector svg {
  width: 100%;
  max-width: 350px;
  height: auto;
  opacity: 0.9;
}

.auth-brand-copyright {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
  z-index: 1;
}

/* ---- Right Panel — Form ---- */
.auth-form-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--spacing-8);
  background: var(--color-white);
  position: relative;
}

.auth-back-btn {
  position: absolute;
  top: var(--spacing-6);
  left: var(--spacing-6);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid var(--color-gray-200);
  color: var(--color-gray-700);
  cursor: pointer;
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.auth-back-btn:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-300);
}

.auth-form-wrapper {
  max-width: 400px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.auth-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-gray-900);
  margin: 0 0 var(--spacing-2) 0;
}

.auth-subtitle {
  font-size: var(--font-size-base);
  color: var(--color-gray-500);
  line-height: 1.6;
  margin: 0 0 var(--spacing-6) 0;
}

.auth-form-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

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

.auth-footer {
  margin-top: var(--spacing-8);
  text-align: center;
}

.auth-footer-text {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin: 0 0 var(--spacing-3) 0;
}

.auth-footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-4);
}

.auth-footer-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-primary);
  text-decoration: none;
}

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

.auth-footer-divider {
  width: 4px;
  height: 4px;
  background: var(--color-gray-300);
  border-radius: 50%;
}

.auth-link-section {
  text-align: center;
  margin-top: var(--spacing-4);
}

.auth-link-text {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

.auth-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-primary);
  text-decoration: none;
}

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

.error-text {
  font-size: var(--font-size-sm);
  color: var(--color-error);
  margin: 0;
}

/* ---- Responsive — Tablet ---- */
@media (max-width: 1024px) {
  .auth-brand-panel {
    width: 40%;
    padding: var(--spacing-6);
  }
  .auth-form-panel {
    padding: var(--spacing-6);
  }
  .auth-brand-title {
    font-size: var(--font-size-3xl);
  }
  .auth-brand-tagline {
    font-size: var(--font-size-base);
  }
  .auth-brand-vector svg {
    max-width: 280px;
  }
}

/* ---- Responsive — Mobile ---- */
@media (max-width: 768px) {
  .auth-layout {
    flex-direction: column;
  }
  .auth-brand-panel {
    width: 100%;
    min-height: 220px;
    padding: var(--spacing-6);
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .auth-brand-content {
    flex: 1;
  }
  .auth-brand-title {
    font-size: var(--font-size-2xl);
  }
  .auth-brand-tagline {
    font-size: var(--font-size-sm);
    max-width: 200px;
  }
  .auth-brand-logo {
    width: 80px;
    height: 80px;
  }
  .auth-brand-vector {
    flex: 0 0 auto;
    padding: 0;
  }
  .auth-brand-vector svg {
    width: 140px;
    max-width: 140px;
  }
  .auth-brand-copyright {
    display: none;
  }
  .auth-form-panel {
    flex: 1;
    padding: var(--spacing-6) var(--spacing-4);
    justify-content: flex-start;
    padding-top: var(--spacing-8);
  }
  .auth-back-btn {
    position: static;
    margin-bottom: var(--spacing-4);
  }
  .auth-title {
    font-size: var(--font-size-2xl);
  }
}

/* ---- Responsive — Small Mobile ---- */
@media (max-width: 480px) {
  .auth-brand-panel {
    min-height: 180px;
    padding: var(--spacing-4);
  }
  .auth-brand-title {
    font-size: var(--font-size-xl);
  }
  .auth-brand-tagline {
    display: none;
  }
  .auth-brand-vector svg {
    width: 100px;
    max-width: 100px;
  }
  .auth-form-panel {
    padding: var(--spacing-4);
    padding-top: var(--spacing-6);
  }
  .auth-form-wrapper {
    max-width: 100%;
  }
  .auth-title {
    font-size: var(--font-size-xl);
  }
  .auth-subtitle {
    font-size: var(--font-size-sm);
  }
}

/* ==============================================
   Enhanced Auth — Professional Polish
   ============================================== */

/* Subtle background pattern on brand panel */
.auth-brand-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 1px, transparent 1px),
                    radial-gradient(circle at 80% 20%, rgba(255,255,255,0.08) 1px, transparent 1px);
  background-size: 60px 60px, 40px 40px;
  z-index: 0;
}

/* Logo subtle glow */
.auth-brand-logo {
  filter: drop-shadow(0 0 20px rgba(255,255,255,0.3));
}

/* Form panel subtle gradient background */
.auth-form-panel {
  background: linear-gradient(180deg, var(--color-white) 0%, var(--color-gray-50) 100%);
}

/* Better auth title */
.auth-title {
  letter-spacing: -0.02em;
}

/* Auth form transitions between steps */
#phone-step,
#otp-step,
#twofa-step {
  animation: fadeIn 0.3s ease-out;
}

/* Role selector cards (register choice page) */
.role-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
  padding: var(--spacing-4) var(--spacing-5);
  background: var(--color-white);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  text-decoration: none;
  color: var(--color-gray-800);
  transition: all var(--transition-normal);
  width: 100%;
}

.role-card:hover {
  border-color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.02);
  box-shadow: 0 4px 12px rgba(var(--color-primary-rgb), 0.1);
  transform: translateY(-2px);
  color: var(--color-gray-900);
}

.role-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.role-card-content {
  flex: 1;
}

.role-card-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: 2px;
}

.role-card-desc {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

.role-card-arrow {
  color: var(--color-gray-300);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.role-card:hover .role-card-arrow {
  color: var(--color-primary);
  transform: translateX(4px);
}

/* Register links vertical on mobile */
@media (max-width: 480px) {
  .auth-link-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-2);
  }

  .auth-link-section .auth-link-text:has(+ .auth-link-text) {
    display: none;
  }
}

/* OTP boxes — nicer focus animation */
.otp-box {
  transition: all var(--transition-fast), transform var(--transition-fast);
}

.otp-box:focus {
  transform: scale(1.05);
  box-shadow: 0 0 0 2px var(--color-primary), 0 4px 12px rgba(var(--color-primary-rgb), 0.15);
}

/* Back button polish */
.auth-back-btn {
  transition: all var(--transition-normal);
}

.auth-back-btn:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-300);
  transform: translateX(-2px);
}