.er-auth {
  position: fixed;
  inset: 0;
  z-index: 6000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.er-auth.is-open {
  display: flex;
}

.er-auth__backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(1, 255, 1, .16), transparent 28%),
    radial-gradient(circle at 80% 80%, rgba(1, 255, 1, .10), transparent 30%),
    rgba(0, 0, 0, .82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.er-auth__modal {
  position: relative;
  width: min(1180px, 96vw);
  min-height: 620px;
  max-height: 90vh;
  display: grid;
  grid-template-columns: .9fr 1.15fr;
  border-radius: 34px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, .09), rgba(255, 255, 255, .02)),
    rgba(10, 10, 10, .94);
  border: 1px solid rgba(1, 255, 1, .52);
  box-shadow:
    0 0 0 1px rgba(1, 255, 1, .10),
    0 0 45px rgba(1, 255, 1, .26),
    0 35px 120px rgba(0, 0, 0, .85);
  animation: erAuthIn .35s cubic-bezier(.2, .9, .2, 1);
}

@keyframes erAuthIn {
  from {
    opacity: 0;
    transform: translateY(34px) scale(.96);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.er-auth__close {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 50;
  width: 52px;
  height: 52px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, .06);
  color: #fff;
  font-size: 34px;
  line-height: 1;
  cursor: pointer;
  transition:
    transform .25s ease,
    background .25s ease,
    color .25s ease,
    box-shadow .25s ease;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.er-auth__close:hover {
  background: #01ff01;
  color: #000;
  transform: rotate(90deg) scale(1.05);
  box-shadow:
    0 0 25px rgba(1, 255, 1, .4),
    0 0 50px rgba(1, 255, 1, .2);
}

.er-auth__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.er-auth__visual::before {
  content: "";
  position: absolute;
  inset: -40%;
  background:
    repeating-linear-gradient(
      115deg,
      transparent 0 18px,
      rgba(1, 255, 1, .08) 19px 20px
    );
  opacity: .22;
  animation: erLines 9s linear infinite;
}

@keyframes erLines {
  from {
    transform: translateX(-80px);
  }

  to {
    transform: translateX(80px);
  }
}

.er-auth__glow {
  position: absolute;
  width: 360px;
  height: 360px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: rgba(1, 255, 1, .18);
  filter: blur(45px);
  animation: erPulse 2.6s ease-in-out infinite;
}

@keyframes erPulse {
  0%,
  100% {
    opacity: .45;
    transform: translate(-50%, -50%) scale(.92);
  }

  50% {
    opacity: .9;
    transform: translate(-50%, -50%) scale(1.08);
  }
}

.er-auth__bike {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.er-auth__bike img {
  width: 70%;
  max-width: 340px;
  height: auto;
  filter:
    drop-shadow(0 0 18px rgba(1, 255, 1, .7))
    drop-shadow(0 0 45px rgba(1, 255, 1, .35));
  animation: erBike 3.2s ease-in-out infinite;
}

@keyframes erBike {
  0%,100% { transform: translateY(0) rotate(-3deg); }
  50% { transform: translateY(-16px) rotate(2deg); }
}

.er-auth__content {
  padding: 64px 64px;
  overflow-y: auto;
  background:
    radial-gradient(circle at 100% 0%, rgba(1, 255, 1, .11), transparent 32%),
    rgba(0, 0, 0, .34);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.er-auth__tabs {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  padding: 6px;
  margin-bottom: 24px;
  border-radius: 20px;
  background: rgba(0, 0, 0, .45);
  border: 1px solid rgba(255, 255, 255, .12);
  overflow: hidden;
}

.er-auth__tabs::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 6px;
  width: calc(50% - 6px);
  height: calc(100% - 12px);
  border-radius: 16px;
  background: #01ff01;
  box-shadow: 0 0 32px rgba(1, 255, 1, .45);
  transition: transform .28s cubic-bezier(.2, .9, .2, 1);
}

.er-auth__tabs.is-register::before {
  transform: translateX(100%);
}

.er-auth__tab {
  position: relative;
  z-index: 2;
  height: 56px;
  border: 0;
  border-radius: 16px;
  background: transparent;
  color: rgba(255, 255, 255, .75);
  font-family: "Inter", sans-serif;
  font-size: 18px;
  font-weight: 800;
  cursor: pointer;
  transition: color .2s ease;
}

.er-auth__tab.is-active {
  color: #000;
}

.er-auth__form {
  display: none;
  opacity: 0;
  transform: translateX(24px);
}

.er-auth__form.is-active {
  display: grid;
  gap: 12px;
  animation: authFormSlide .28s cubic-bezier(.2, .9, .2, 1) forwards;
}

@keyframes authFormSlide {
  from {
    opacity: 0;
    transform: translateX(24px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.er-auth__form h2 {
  margin: 0;
  font-family: "Jura", sans-serif;
  font-size: 32px;
  line-height: 1.05;
  color: #01ff01;
}

.er-auth__form p {
  margin-bottom: 4px;
  font-family: "Inter", sans-serif;
  color: rgba(255, 255, 255, .62);
}

.er-auth__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.er-field {
  display: grid;
  gap: 6px;
}

.er-field span {
  font-family: "Inter", sans-serif;
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #01ff01;
}

.er-field input {
  width: 100%;
  height: 50px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, .14);
  background: rgba(0, 0, 0, .58);
  color: #fff;
  outline: none;
  padding: 0 18px;
  font-family: "Inter", sans-serif;
  font-size: 16px;
  transition:
    border-color .18s ease,
    box-shadow .18s ease,
    background .18s ease;
}

.er-field input::placeholder {
  color: rgba(255, 255, 255, .45);
}

.er-field input:focus {
  border-color: #01ff01;
  box-shadow: 0 0 0 3px rgba(1, 255, 1, .13);
}

.er-field.has-error input {
  border-color: #ff3131;
  box-shadow: 0 0 0 3px rgba(255, 49, 49, .18);
}

.er-field__error {
  min-height: 14px;
  margin-top: 2px;
  font-family: "Inter", sans-serif;
  font-size: 12px;
  color: #ff4d4d;
  opacity: 0;
  transform: translateY(-4px);
  transition:
    opacity .18s ease,
    transform .18s ease;
}

.er-field.has-error .er-field__error {
  opacity: 1;
  transform: translateY(0);
}

.er-auth__submit {
  margin-top: 4px;
  height: 54px;
  border-radius: 18px;
  border: 0;
  background: #01ff01;
  color: #000;
  font-family: "Inter", sans-serif;
  font-size: 18px;
  font-weight: 900;
  cursor: pointer;
  display: flex;
  justify-content: center;
  gap: 16px;
  align-items: center;
  transition:
    transform .18s ease,
    box-shadow .18s ease,
    background .18s ease,
    color .18s ease;
}

.er-auth__submit i {
  font-style: normal;
  font-size: 26px;
  transition: transform .18s ease;
}

.er-auth__submit:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 48px rgba(1, 255, 1, .36);
}

.er-auth__submit:hover i {
  transform: translateX(6px);
}

.er-auth__submit--ghost {
  background: transparent;
  color: #01ff01;
  border: 1px solid #01ff01;
}

.er-auth__submit--ghost:hover {
  background: #01ff01;
  color: #000;
}

.er-auth__message {
  display: none;
  padding: 14px 16px;
  border-radius: 14px;
  font-family: "Inter", sans-serif;
  font-size: 14px;
  line-height: 1.35;
}

.er-auth__message:not(:empty) {
  display: block;
}

.er-auth__message--error {
  background: rgba(255, 49, 49, .12);
  border: 1px solid rgba(255, 49, 49, .45);
  color: #ff5a5a;
  box-shadow: 0 0 24px rgba(255, 49, 49, .08);
}

/* Компактный режим только для формы регистрации */
.er-auth__form[data-auth-form="register"].is-active {
  gap: 9px;
}

.er-auth__form[data-auth-form="register"] h2 {
  font-size: 30px;
  margin-bottom: 0;
}

.er-auth__form[data-auth-form="register"] p {
  margin: 0 0 2px;
}

.er-auth__form[data-auth-form="register"] .er-field {
  gap: 4px;
}

.er-auth__form[data-auth-form="register"] .er-field input {
  height: 46px;
}

.er-auth__form[data-auth-form="register"] .er-field__error {
  min-height: 8px;
  font-size: 11px;
}

.er-auth__form[data-auth-form="register"] .er-auth__submit {
  height: 50px;
  margin-top: 2px;
}