/* ==========================================================================
   کاد — ورود / ثبت‌نام (طرح دوبخشی برند + فرم)
   ========================================================================== */

.auth-page-split {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

@media (max-width: 860px) {
  .auth-page-split {
    grid-template-columns: 1fr;
  }
}

/* -------- Brand panel -------- */
.auth-brand-panel {
  position: relative;
  background: linear-gradient(155deg, #4a3b26, var(--color-primary) 120%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-10);
  overflow: hidden;
}

@media (max-width: 860px) {
  .auth-brand-panel {
    display: none;
  }
}

.auth-brand-panel::before {
  content: '';
  position: absolute;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  bottom: -220px;
  left: -160px;
}

.auth-brand-panel::after {
  content: '';
  position: absolute;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(96, 165, 250, 0.25);
  top: -100px;
  right: -80px;
}

.auth-brand-content {
  position: relative;
  z-index: 1;
  max-width: 380px;
  color: var(--color-white);
}

.auth-brand-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--fw-bold);
  font-size: 1.2rem;
  margin-bottom: var(--space-10);
}

.auth-brand-logo img {
  height: 46px;
  width: auto;
}

/* لوگوی اصلیِ کاد (طلایی + نقره‌ای) روی کارت روشن، تا روی زمینه‌ی قهوه‌ای/طلاییِ پنل خوانا بمونه */
.auth-brand-logo {
  background: rgba(251, 248, 242, 0.96);
  color: #201811;
  padding: var(--space-2) var(--space-4) var(--space-2) var(--space-3);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.auth-brand-content h2 {
  color: var(--color-white);
  font-size: 1.9rem;
  line-height: 1.4;
  margin-bottom: var(--space-4);
}

.auth-brand-content p {
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.8;
}

.auth-brand-points {
  margin-top: var(--space-10);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.auth-brand-points li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--text-body2-size);
}

.auth-brand-points svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: #e3c16f;
}

/* -------- Form panel -------- */
.auth-form-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-6);
  position: relative;
}

.auth-back-mobile {
  display: none;
  position: absolute;
  top: var(--space-5);
  right: var(--space-5);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-gray-50);
  align-items: center;
  justify-content: center;
  color: var(--color-gray-600);
}

@media (max-width: 860px) {
  .auth-back-mobile {
    display: flex;
  }
}

.auth-back-mobile svg {
  width: 18px;
  height: 18px;
}

.auth-theme-toggle {
  position: fixed;
  top: var(--space-5);
  left: var(--space-5);
  z-index: 20;
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.auth-form-wrap {
  width: 100%;
  max-width: 360px;
}

.auth-form-logo {
  display: none;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-8);
}

@media (max-width: 860px) {
  .auth-form-logo {
    display: flex;
  }
}

.auth-form-logo img {
  height: 44px;
  width: auto;
}

.auth-form-wrap h1 {
  font-size: var(--text-h2-size);
  margin-bottom: var(--space-2);
}

.auth-subtitle {
  color: var(--color-gray-500);
  font-size: var(--text-body2-size);
  margin-bottom: var(--space-7);
}

.auth-tabs {
  margin-bottom: var(--space-7);
}

.auth-flash {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-body2-size);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-6);
}

.auth-flash svg {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
}

.auth-flash-error {
  background: var(--color-danger-bg);
  color: var(--color-danger);
}

.auth-flash-success {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.tab-link {
  display: block;
  text-align: center;
  padding: 0.65rem;
  border-radius: var(--radius-sm);
  font-weight: var(--fw-medium);
  font-size: var(--text-body2-size);
  color: var(--color-gray-500);
}

.tab-link.is-active {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

#loginForm .field,
#signupForm .field {
  margin-bottom: var(--space-4);
}

/* دو تا فیلد رمز عبور تو ثبت‌نام کنار هم (تو دسکتاپ) تا فرم اینقدر کشیده به نظر نرسه */
#signupForm .field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

#signupForm .field-row .field {
  margin-bottom: 0;
}

@media (max-width: 420px) {
  #signupForm .field-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  #signupForm .field-row .field {
    margin-bottom: var(--space-4);
  }
}

.phone-prefix {
  position: absolute;
  left: 1rem;
  color: var(--color-gray-500);
  font-size: var(--text-body2-size);
  padding-left: var(--space-3);
  border-left: 1px solid var(--color-gray-200);
}

.input-wrap .input-phone {
  padding-left: 4.5rem;
  padding-right: var(--space-4);
}

.auth-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-7);
  gap: var(--space-4);
  flex-wrap: wrap;
}

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

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

#termsField {
  margin-bottom: var(--space-5) !important;
}

#termsError {
  display: block;
  margin-bottom: var(--space-6);
}

.auth-footer-link {
  text-align: center;
  font-size: var(--text-body2-size);
  color: var(--color-gray-500);
  margin-top: var(--space-7);
}

.auth-footer-link a {
  color: var(--color-primary);
  font-weight: var(--fw-medium);
}

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

#loginSubmit.is-loading span,
#signupSubmit.is-loading span {
  opacity: 0;
}

#loginSubmit.is-loading,
#signupSubmit.is-loading {
  position: relative;
  pointer-events: none;
}

#loginSubmit.is-loading::after,
#signupSubmit.is-loading::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2.5px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  animation: spin 0.7s linear infinite;
}

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