/* Общие стили и анимации для auth-страниц (register/forgot/reset/verify).
   Дополняет login.css — переиспользует его layout (.login-page/.login-shell/.login-card),
   но добавляет новые элементы UI: ссылки, индикатор силы пароля, состояния, анимации.
*/

/* Появление карточки */
.auth-card-anim {
  animation: auth-card-in 360ms var(--ease) both;
}

@keyframes auth-card-in {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.985);
    filter: blur(2px);
  }
  to {
    opacity: 1;
    transform: none;
    filter: blur(0);
  }
}

/* Подзаголовок-«eyebrow» — небольшая моно-метка над h1 */
.auth-eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg3);
  margin: 0 0 4px;
}

/* Inline-статус (например, e-mail отправлен) */
.auth-info {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--cyan-500) 12%, var(--panel-2));
  border: 1px solid color-mix(in srgb, var(--cyan-500) 35%, var(--border));
  color: var(--fg1);
  font-size: 13px;
  display: none;
}

.auth-info.show {
  display: block;
  animation: auth-soft-in 260ms var(--ease);
}

@keyframes auth-soft-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* Shake при ошибке */
.auth-shake {
  animation: auth-shake 360ms cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}

@keyframes auth-shake {
  10%, 90% { transform: translate3d(-1px, 0, 0); }
  20%, 80% { transform: translate3d(2px, 0, 0); }
  30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
  40%, 60% { transform: translate3d(4px, 0, 0); }
}

/* Поля и поле-c-кнопкой (eye) */
.auth-input-wrap {
  position: relative;
}

.auth-pw-toggle {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border: none;
  background: transparent;
  color: var(--fg3);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.auth-pw-toggle:hover {
  color: var(--fg1);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.auth-pw-toggle svg {
  width: 16px;
  height: 16px;
}

.auth-input-wrap input[type="password"],
.auth-input-wrap input[type="text"] {
  padding-right: 38px;
}

/* Live-индикатор сложности пароля */
.auth-strength {
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg3);
}

.auth-strength-bar {
  position: relative;
  flex: 1;
  height: 4px;
  border-radius: 4px;
  background: var(--panel-3);
  overflow: hidden;
}

.auth-strength-bar::after {
  content: "";
  position: absolute;
  inset: 0;
  width: 0%;
  background: linear-gradient(90deg, var(--red-500), var(--amber-500), var(--green-500));
  transition: width 320ms var(--ease), opacity 320ms var(--ease);
  opacity: 0.85;
  border-radius: 4px;
}

.auth-strength[data-level="0"] .auth-strength-bar::after { width: 0%; }
.auth-strength[data-level="1"] .auth-strength-bar::after { width: 25%; }
.auth-strength[data-level="2"] .auth-strength-bar::after { width: 50%; }
.auth-strength[data-level="3"] .auth-strength-bar::after { width: 78%; }
.auth-strength[data-level="4"] .auth-strength-bar::after { width: 100%; }

.auth-strength-label {
  min-width: 56px;
  text-align: right;
  white-space: nowrap;
}

.auth-strength[data-level="0"] .auth-strength-label,
.auth-strength[data-level="1"] .auth-strength-label { color: var(--red-500); }
.auth-strength[data-level="2"] .auth-strength-label { color: var(--amber-500); }
.auth-strength[data-level="3"] .auth-strength-label,
.auth-strength[data-level="4"] .auth-strength-label { color: var(--green-500); }

/* Подсказки требований пароля */
.auth-hint {
  margin: 6px 0 0;
  color: var(--fg4);
  font-size: 11.5px;
  line-height: 1.45;
}

/* Ссылки (внизу карточки или между полями) */
.auth-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--fg3);
}

.auth-links a,
a.auth-link {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px dashed color-mix(in srgb, var(--accent) 40%, transparent);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.auth-links a:hover,
a.auth-link:hover {
  color: var(--accent-hover);
  border-bottom-color: var(--accent-hover);
}

/* Ссылка-как-кнопка (используется в success-state) */
a.btn {
  text-decoration: none;
  color: #fff;
}

a.btn:hover {
  color: #fff;
}

/* Spinner внутри submit-кнопки */
.btn .spinner,
button .auth-spinner {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid color-mix(in srgb, currentColor 35%, transparent);
  border-top-color: currentColor;
  animation: auth-spin 720ms linear infinite;
  display: inline-block;
  vertical-align: -2px;
  margin-right: 8px;
}

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

/* Состояния (loading / success / error) — у verify и reset страниц */
.auth-state {
  text-align: center;
  padding: 8px 4px 4px;
}

.auth-state svg {
  width: 64px;
  height: 64px;
  margin: 0 auto 12px;
}

.auth-state h2 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 1.05rem;
  margin: 0 0 6px;
  color: var(--fg1);
}

.auth-state p {
  margin: 0;
  color: var(--fg3);
  font-size: 13px;
  line-height: 1.5;
}

.auth-state-actions {
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* Animated checkmark */
.auth-check {
  display: block;
  margin: 0 auto 12px;
  width: 64px;
  height: 64px;
}

.auth-check circle {
  fill: none;
  stroke: var(--green-500);
  stroke-width: 3;
  stroke-dasharray: 166;
  stroke-dashoffset: 166;
  animation: auth-stroke 700ms cubic-bezier(0.65, 0, 0.45, 1) forwards;
  filter: drop-shadow(0 0 8px color-mix(in srgb, var(--green-500) 60%, transparent));
}

.auth-check path {
  fill: none;
  stroke: var(--green-500);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 48;
  stroke-dashoffset: 48;
  animation: auth-stroke 540ms 360ms cubic-bezier(0.65, 0, 0.45, 1) forwards;
}

@keyframes auth-stroke {
  to { stroke-dashoffset: 0; }
}

/* Animated cross (error) */
.auth-cross {
  display: block;
  margin: 0 auto 12px;
  width: 64px;
  height: 64px;
}

.auth-cross circle {
  fill: none;
  stroke: var(--red-500);
  stroke-width: 3;
  stroke-dasharray: 166;
  stroke-dashoffset: 166;
  animation: auth-stroke 700ms cubic-bezier(0.65, 0, 0.45, 1) forwards;
  filter: drop-shadow(0 0 8px color-mix(in srgb, var(--red-500) 60%, transparent));
}

.auth-cross path {
  fill: none;
  stroke: var(--red-500);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 36;
  stroke-dashoffset: 36;
  animation: auth-stroke 380ms 320ms cubic-bezier(0.65, 0, 0.45, 1) forwards;
}

/* Animated hourglass / pulse for loading */
.auth-loader {
  position: relative;
  width: 56px;
  height: 56px;
  margin: 4px auto 14px;
  display: block;
}

.auth-loader::before,
.auth-loader::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 3px solid transparent;
  border-top-color: var(--accent);
  border-right-color: var(--cyan-500);
  border-radius: 50%;
  animation: auth-spin 1.05s linear infinite;
  filter: drop-shadow(0 0 6px color-mix(in srgb, var(--cyan-500) 50%, transparent));
}

.auth-loader::after {
  inset: 8px;
  border-top-color: var(--cyan-500);
  border-right-color: transparent;
  animation-duration: 0.7s;
  animation-direction: reverse;
}

/* Hidden helper (display:none с возможностью fade) */
.auth-hidden {
  display: none !important;
}

.auth-fade-in {
  animation: auth-soft-in 260ms var(--ease);
}

/* Dual fields в одну строку (опционально) */
.auth-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

@media (max-width: 420px) {
  .auth-row-2 {
    grid-template-columns: 1fr;
  }
}

/* prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  .auth-card-anim,
  .auth-info.show,
  .auth-fade-in,
  .auth-shake,
  .auth-check circle,
  .auth-check path,
  .auth-cross circle,
  .auth-cross path,
  .auth-loader::before,
  .auth-loader::after {
    animation: none !important;
  }
  .auth-check circle,
  .auth-check path,
  .auth-cross circle,
  .auth-cross path {
    stroke-dashoffset: 0;
  }
}