/* ==========================================================================
   Customer authentication — Modern Logistics
   ========================================================================== */

.auth-page {
  min-height: 100vh;
  color: var(--color-gray-900);
  background:
    linear-gradient(135deg, rgba(213, 226, 239, 0.42), transparent 38%),
    var(--color-gray-50);
}

.auth-header {
  position: relative;
  z-index: 2;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
}

.auth-header__inner {
  width: min(100%, var(--container-max));
  min-height: 4.75rem;
  margin-inline: auto;
  padding: var(--space-3) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.auth-header__logo {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-md);
}

.auth-header__logo-img {
  display: block;
  width: auto;
  height: 3rem;
  max-width: 11rem;
  object-fit: contain;
}

.auth-header__back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 2.75rem;
  padding: var(--space-2) var(--space-3);
  color: var(--color-gray-600);
  font-size: var(--text-sm);
  font-weight: 600;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  transition:
    color var(--transition-fast),
    border-color var(--transition-fast),
    background-color var(--transition-fast);
}

.auth-header__back:hover {
  color: var(--color-primary-700);
  border-color: var(--color-primary-200);
  background: var(--color-primary-100);
}

.auth-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 4.75rem);
  padding: var(--space-10) var(--space-6) var(--space-16);
}

.auth-shell {
  width: min(100%, 66rem);
  display: grid;
  grid-template-columns: minmax(17rem, 0.88fr) minmax(24rem, 1.12fr);
  overflow: hidden;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lift);
  animation: auth-shell-enter var(--transition-slow) cubic-bezier(0.22, 1, 0.36, 1) both;
}

.auth-shell--register {
  width: min(100%, 72rem);
  grid-template-columns: minmax(18rem, 0.72fr) minmax(34rem, 1.28fr);
}

.auth-shell--single {
  width: min(100%, 34rem);
  grid-template-columns: 1fr;
}

.auth-intro {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: var(--space-12);
  color: var(--color-on-dark);
  background: var(--color-primary-700);
}

.auth-intro::before,
.auth-intro::after {
  position: absolute;
  z-index: -1;
  content: "";
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
}

.auth-intro::before {
  width: 18rem;
  height: 18rem;
  right: -10rem;
  top: -8rem;
}

.auth-intro::after {
  width: 12rem;
  height: 12rem;
  left: -7rem;
  bottom: -6rem;
  background: rgba(255, 255, 255, 0.025);
}

.auth-intro__eyebrow,
.auth-card__eyebrow {
  margin: 0 0 var(--space-3);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.auth-intro__eyebrow {
  color: var(--color-primary-100);
}

.auth-intro__title {
  max-width: 22rem;
  color: var(--color-on-dark);
  font-size: clamp(1.75rem, 3vw, var(--text-3xl));
  line-height: 1.15;
}

.auth-intro__text {
  max-width: 24rem;
  margin-top: var(--space-4);
  color: var(--color-on-dark-muted);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
}

.auth-benefits {
  display: grid;
  gap: var(--space-5);
  margin-top: var(--space-10);
}

.auth-benefits__item {
  display: grid;
  grid-template-columns: 2.25rem 1fr;
  align-items: start;
  gap: var(--space-3);
  color: var(--color-on-dark-muted);
  font-size: var(--text-sm);
  line-height: 1.5;
}

.auth-benefits__item strong {
  display: block;
  margin-bottom: var(--space-1);
  color: var(--color-on-dark);
  font-size: var(--text-sm);
}

.auth-benefits__icon,
.auth-benefits__check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  color: var(--color-on-dark);
  font-size: var(--text-xs);
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.08);
}

.auth-benefits__check {
  color: var(--color-primary-700);
  font-size: var(--text-sm);
  background: var(--color-primary-100);
  border-color: var(--color-primary-100);
}

.auth-intro__support {
  margin-top: var(--space-10);
  padding-top: var(--space-6);
  color: var(--color-on-dark-muted);
  font-size: var(--text-sm);
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.auth-intro__support a {
  color: var(--color-on-dark);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.auth-panel {
  display: flex;
  align-items: center;
  background: var(--color-white);
}

.auth-panel__content {
  width: min(100%, 28rem);
  margin-inline: auto;
  padding: var(--space-12);
}

.auth-panel__content--register {
  width: 100%;
  max-width: 44rem;
}

.auth-card__eyebrow {
  color: var(--color-primary-500);
}

.auth-card__title {
  margin: 0 0 var(--space-2);
  color: var(--color-gray-900);
  font-size: clamp(var(--text-2xl), 3vw, var(--text-3xl));
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
}

.auth-card__subtitle {
  margin: 0 0 var(--space-6);
  color: var(--color-gray-600);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
}

.auth-card__footer {
  margin: var(--space-6) 0 0;
  color: var(--color-gray-600);
  font-size: var(--text-sm);
  text-align: center;
}

.auth-card__footer a {
  color: var(--color-primary-500);
  font-weight: 700;
}

.auth-card__footer a:hover {
  color: var(--color-primary-700);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.auth-alert {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  background: rgba(13, 59, 109, 0.08);
  border: 1px solid var(--color-primary-200);
  color: var(--color-primary-700);
}

.auth-alert--success {
  color: #065f46;
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
}

.auth-alert--error {
  color: #991b1b;
  background: #fef2f2;
  border: 1px solid #fecaca;
}

.auth-alert__message {
  margin: 0;
  flex: 1 1 auto;
}

.auth-alert__dismiss {
  flex: 0 0 auto;
  margin: -0.15rem -0.25rem 0 0;
  border: 0;
  background: transparent;
  color: inherit;
  font-size: var(--text-xl);
  line-height: 1;
  cursor: pointer;
  opacity: 0.72;
}

.auth-alert__dismiss:hover,
.auth-alert__dismiss:focus-visible {
  opacity: 1;
}

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

.form-field-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.form-field {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: var(--space-2);
}

.form-field__label {
  color: var(--color-gray-800);
  font-size: var(--text-sm);
  font-weight: 600;
}

.form-field__optional,
.form-field__hint {
  color: var(--color-gray-500);
  font-weight: 400;
}

.form-field__required {
  color: var(--color-error);
}

.form-field__hint {
  margin: 0;
  font-size: var(--text-xs);
}

.form-field__input {
  width: 100%;
  min-height: 3rem;
  padding: 0.75rem var(--space-4);
  color: var(--color-gray-900);
  font-family: inherit;
  font-size: var(--text-base);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-fast);
}

.form-field__input::placeholder {
  color: var(--color-gray-500);
}

.form-field__input:hover {
  border-color: var(--color-primary-200);
}

.form-field__input:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px rgba(13, 59, 109, 0.14);
}

.auth-form .btn--primary {
  min-height: 3.125rem;
  margin-top: var(--space-2);
  font-size: var(--text-base);
}

.auth-security-note {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-5);
  color: var(--color-gray-500);
  font-size: var(--text-xs);
  line-height: var(--leading-normal);
  text-align: left;
}

.auth-security-note__icon {
  display: inline-flex;
  flex: 0 0 auto;
  margin-top: 0.1rem;
  color: var(--color-primary-500);
}

.auth-shell--success {
  display: block;
  width: min(100%, 34rem);
}

.auth-success {
  padding: var(--space-12);
  text-align: center;
}

.auth-success__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  margin-bottom: var(--space-6);
  color: var(--color-primary-700);
  background: var(--color-primary-100);
  border: 1px solid var(--color-primary-200);
  border-radius: var(--radius-full);
}

.auth-success .auth-card__subtitle {
  max-width: 27rem;
  margin-inline: auto;
}

.auth-success__action {
  width: min(100%, 18rem);
  min-height: 3.125rem;
  margin-top: var(--space-2);
  font-size: var(--text-base);
}

.auth-success__note {
  margin-top: var(--space-5);
  color: var(--color-gray-500);
  font-size: var(--text-xs);
  line-height: var(--leading-normal);
}

@keyframes auth-shell-enter {
  from {
    opacity: 0;
    transform: translateY(0.75rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 860px) {
  .auth-main {
    align-items: flex-start;
  }

  .auth-shell,
  .auth-shell--register,
  .auth-shell--single {
    width: min(100%, 38rem);
    grid-template-columns: 1fr;
  }

  .auth-intro,
  .auth-panel__content {
    padding: var(--space-8);
  }

  .auth-benefits {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
    margin-top: var(--space-8);
  }

  .auth-benefits__item {
    grid-template-columns: 1fr;
  }

  .auth-intro__support {
    margin-top: var(--space-8);
  }
}

@media (max-width: 600px) {
  .auth-header__inner {
    min-height: 4.25rem;
    padding: var(--space-2) var(--space-4);
  }

  .auth-header__logo-img {
    height: 2.5rem;
    max-width: 8.5rem;
  }

  .auth-header__back {
    padding-inline: var(--space-2);
  }

  .auth-main {
    min-height: calc(100dvh - 4.25rem);
    padding: var(--space-5) var(--space-3) max(var(--space-10), env(safe-area-inset-bottom));
  }

  .auth-shell {
    border-radius: var(--radius-lg);
  }

  .auth-intro,
  .auth-panel__content,
  .auth-success {
    padding: var(--space-6);
  }

  .auth-intro__title {
    font-size: var(--text-2xl);
  }

  .auth-benefits {
    grid-template-columns: 1fr;
    gap: var(--space-4);
    margin-top: var(--space-6);
  }

  .auth-benefits__item {
    grid-template-columns: 2.25rem 1fr;
  }

  .auth-intro__support {
    margin-top: var(--space-6);
    padding-top: var(--space-5);
  }

  .form-field-row {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .auth-shell {
    animation: none;
  }
}