/* ===== АНМАЦЯ АВТОРЗАЦ ===== */

/* Полноэкранный синий фон */
.login-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: linear-gradient(
    45deg,
    var(--color-primary),
    var(--color-primary-dark),
    var(--color-secondary),
    var(--color-primary)
  );
  background-size: 400% 400%;
  animation: loginGradient 20s ease infinite;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

@keyframes loginGradient {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0% 50%;
  }
}

/* Анимированный фон с частицами */
.login-screen::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
      circle at 20% 80%,
      rgb(120 119 198 / 30%) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 20%,
      rgb(255 255 255 / 10%) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 40% 40%,
      rgb(120 119 198 / 20%) 0%,
      transparent 50%
    );
  animation: particleMove 20s ease-in-out infinite;
}

@keyframes particleMove {
  0%,
  100% {
    transform: translate(0, 0) rotate(0deg);
  }

  33% {
    transform: translate(30px, -30px) rotate(120deg);
  }

  66% {
    transform: translate(-20px, 20px) rotate(240deg);
  }
}

/* Контейнер формы */
.login-form-container {
  background: rgb(255 255 255 / 10%);
  backdrop-filter: blur(20px);
  border: 1px solid rgb(255 255 255 / 20%);
  border-radius: 24px;
  padding: 3rem 2.5rem;
  width: 100%;
  max-width: 420px;
  margin: 0 1rem;
  box-shadow:
    0 32px 64px rgb(0 0 0 / 20%),
    inset 0 1px 0 rgb(255 255 255 / 30%);
  transform: translateY(-100vh);
  opacity: 0;
  animation: slideDownForm 0.8s ease-out 0.5s forwards;
  position: relative;
  overflow: hidden;
}

/* Анимация появления формы сверху */
@keyframes slideDownForm {
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Анимация исчезновения формы вниз */
.login-form-container.slide-out {
  animation: slideUpForm 0.6s ease-in forwards;
}

@keyframes slideUpForm {
  to {
    transform: translateY(100vh);
    opacity: 0;
  }
}

/* Заголовок формы */
.login-title {
  color: var(--white);
  font-size: 2.5rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 0.5rem;
  background: linear-gradient(45deg, var(--white), var(--color-accent-light));
  background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: titleGlow 2s ease-in-out infinite alternate;
}

@keyframes titleGlow {
  from {
    filter: drop-shadow(0 0 10px rgb(255 255 255 / 30%));
  }

  to {
    filter: drop-shadow(0 0 20px rgb(255 255 255 / 60%));
  }
}

.login-subtitle {
  color: rgb(255 255 255 / 80%);
  text-align: center;
  margin-bottom: 2rem;
  font-size: 1.1rem;
  font-weight: 400;
}

/* Поля ввода в форме авторизации */
.login-form .form-control {
  background: rgb(255 255 255 / 10%);
  border: 2px solid rgb(255 255 255 / 20%);
  color: var(--white);
  font-size: 1.1rem;
  padding: 1rem 1.25rem;
  border-radius: 16px;
  margin-bottom: 1.5rem;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.login-form .form-control::placeholder {
  color: rgb(255 255 255 / 60%);
}

.login-form .form-control:focus {
  background: rgb(255 255 255 / 15%);
  border-color: rgb(255 255 255 / 40%);
  box-shadow: 0 0 0 4px rgb(255 255 255 / 10%);
  outline: none;
  transform: scale(1.02);
}

/* Кнопка входа */
.login-btn {
  background: linear-gradient(45deg, var(--white), var(--gray-100));
  color: var(--color-secondary);
  border: none;
  font-weight: 700;
  font-size: 1.1rem;
  padding: 1rem 2rem;
  border-radius: 16px;
  width: 100%;
  margin-top: 1rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 24px rgb(0 0 0 / 20%);
}

.login-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(var(--color-primary-rgb), 0.2),
    transparent
  );
  transition: left 0.5s;
}

.login-btn:hover::before {
  left: 100%;
}

.login-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgb(0 0 0 / 30%);
  background: linear-gradient(45deg, var(--gray-50), var(--white));
}

.login-btn:active {
  transform: translateY(0);
}

/* Лоадер на кнопке */
.login-btn.loading {
  pointer-events: none;
}

.login-btn .spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgb(30 64 175 / 30%);
  border-radius: 50%;
  border-top-color: var(--color-secondary);
  animation: spin 1s ease-in-out infinite;
  margin-right: 0.5rem;
}

/* Анимация исчезновения экрана авторизации */
.login-screen.fade-out {
  animation: fadeOutLogin 0.8s ease-in forwards;
}

@keyframes fadeOutLogin {
  to {
    opacity: 0;
    transform: scale(1.1);
    pointer-events: none;
  }
}

/* Декоративные элементы */
.login-form-container::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(
    transparent,
    rgb(255 255 255 / 10%),
    transparent 30%
  );
  animation: rotate 20s linear infinite;
  pointer-events: none;
}

@keyframes rotate {
  100% {
    transform: rotate(360deg);
  }
}

.login-form-container::after {
  content: '';
  position: absolute;
  inset: 1px;
  background: rgba(var(--color-primary-rgb), 0.1);
  border-radius: 23px;
  pointer-events: none;
}

.login-form {
  position: relative;
  z-index: 10;
}

/* Адаптивность для мобильных */
@media (width <= 480px) {
  .login-form-container {
    padding: 2rem 1.5rem;
    margin: 0 0.5rem;
  }

  .login-title {
    font-size: 2rem;
  }

  .login-form .form-control {
    font-size: 1rem;
    padding: 0.875rem 1rem;
  }

  .login-btn {
    font-size: 1rem;
    padding: 0.875rem 1.5rem;
  }
}

/* Анимация для ошибок */
.login-error {
  background: rgb(239 68 68 / 10%);
  border: 1px solid rgb(239 68 68 / 30%);
  color: var(--danger-medium);
  padding: 1rem;
  border-radius: 12px;
  margin-bottom: 1rem;
  animation: shake 0.5s ease-in-out;
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }

  25% {
    transform: translateX(-5px);
  }

  75% {
    transform: translateX(5px);
  }
}

/* Floating элементы на фоне */
.floating-element {
  position: absolute;
  background: rgb(255 255 255 / 10%);
  border-radius: 50%;
  pointer-events: none;
  animation: float 6s ease-in-out infinite;
}

.floating-element:nth-child(1) {
  width: 80px;
  height: 80px;
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.floating-element:nth-child(2) {
  width: 120px;
  height: 120px;
  top: 70%;
  right: 10%;
  animation-delay: 2s;
}

.floating-element:nth-child(3) {
  width: 60px;
  height: 60px;
  bottom: 20%;
  left: 70%;
  animation-delay: 4s;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }

  50% {
    transform: translateY(-20px) rotate(180deg);
  }
}