/* ========== YixianPro 登录/注册页面样式 ========== */

.yixian-auth-page {
  min-height: calc(100vh - var(--yixian-nav-h) - 200px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--yixian-sp-8) var(--yixian-sp-4);
}

.yixian-auth-container {
  width: 100%;
  max-width: 960px;
}

.yixian-auth-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 640px;
  background: var(--yixian-bg-card);
  border: 1px solid var(--yixian-border-soft);
  border-radius: var(--yixian-r-xl);
  overflow: hidden;
  box-shadow: var(--yixian-shadow-2);
}

/* ========== Brand Panel (左侧) ========== */
.yixian-auth-brand {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--yixian-sp-10);
  overflow: hidden;
}

.yixian-auth-brand__bg {
  position: absolute;
  inset: 0;
  background: var(--yixian-primary-grad);
}

.yixian-auth-brand__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 80% 20%, rgba(255,255,255,.25), transparent 50%),
    radial-gradient(circle at 20% 80%, rgba(255,255,255,.12), transparent 40%);
}

.yixian-auth-brand__sakura {
  position: absolute;
  width: 16px;
  height: 16px;
  background: radial-gradient(circle at 30% 30%, #ffc1d8, #ff9fc7);
  border-radius: 60% 30% 60% 30%;
  opacity: 0;
  animation: authSakuraFall linear infinite;
}

.sakura-1 { left: 15%; animation-duration: 12s; animation-delay: 0s; }
.sakura-2 { left: 35%; animation-duration: 14s; animation-delay: -3s; }
.sakura-3 { left: 55%; animation-duration: 11s; animation-delay: -6s; }
.sakura-4 { left: 75%; animation-duration: 15s; animation-delay: -2s; }
.sakura-5 { left: 22%; animation-duration: 13s; animation-delay: -8s; }
.sakura-6 { left: 62%; animation-duration: 16s; animation-delay: -4s; }

@keyframes authSakuraFall {
  0% {
    opacity: 0;
    transform: translate3d(0, -40px, 0) rotate(0deg);
  }
  15% {
    opacity: .65;
  }
  85% {
    opacity: .65;
  }
  100% {
    opacity: 0;
    transform: translate3d(30px, 660px, 0) rotate(540deg);
  }
}

.yixian-auth-brand__content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: #fff;
}

.yixian-auth-brand__logo {
  display: inline-flex;
  width: 72px;
  height: 72px;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,.2);
  border-radius: var(--yixian-r-xl);
  backdrop-filter: blur(8px);
  margin-bottom: var(--yixian-sp-5);
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
  animation: authFloat 4s var(--yixian-ease-soft) infinite;
}

.yixian-auth-brand__logo img {
  width: 48px;
  height: 48px;
}

@keyframes authFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.yixian-auth-brand__title {
  font-size: var(--yixian-fs-3xl);
  font-weight: 800;
  margin-bottom: var(--yixian-sp-2);
  letter-spacing: -.02em;
  text-shadow: 0 2px 12px rgba(0,0,0,.15);
}

.yixian-auth-brand__desc {
  font-size: var(--yixian-fs-md);
  opacity: .85;
  margin-bottom: var(--yixian-sp-8);
  line-height: 1.6;
}

.yixian-auth-brand__features {
  display: flex;
  flex-direction: column;
  gap: var(--yixian-sp-3);
  text-align: left;
}

.yixian-auth-brand__feature {
  display: flex;
  align-items: center;
  gap: var(--yixian-sp-3);
  font-size: var(--yixian-fs-sm);
  font-weight: 500;
  padding: var(--yixian-sp-2) var(--yixian-sp-3);
  background: rgba(255,255,255,.12);
  border-radius: var(--yixian-r-pill);
  backdrop-filter: blur(4px);
  transition: background var(--yixian-dur-2);
}

.yixian-auth-brand__feature:hover {
  background: rgba(255,255,255,.22);
}

.yixian-auth-brand__feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255,255,255,.18);
  flex-shrink: 0;
}

/* ========== Form Panel (右侧) ========== */
.yixian-auth-form {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--yixian-sp-8) var(--yixian-sp-6);
  overflow-y: auto;
}

.yixian-auth-form__inner {
  width: 100%;
  max-width: 380px;
}

/* ========== Tabs ========== */
.yixian-auth-tabs {
  display: flex;
  gap: 4px;
  background: var(--yixian-bg-soft);
  border-radius: var(--yixian-r-pill);
  padding: 4px;
  margin-bottom: var(--yixian-sp-6);
}

.yixian-auth-tab {
  flex: 1;
  padding: 10px 0;
  border-radius: var(--yixian-r-pill);
  font-size: var(--yixian-fs-md);
  font-weight: 600;
  color: var(--yixian-text-soft);
  background: transparent;
  cursor: pointer;
  transition: all var(--yixian-dur-2) var(--yixian-ease-out);
}

.yixian-auth-tab:hover {
  color: var(--yixian-text);
}

.yixian-auth-tab.is-active {
  background: var(--yixian-bg-card);
  color: var(--yixian-text);
  box-shadow: var(--yixian-shadow-1);
}

/* ========== Tab Content ========== */
.yixian-auth-tab-content {
  display: none;
  animation: authFadeIn var(--yixian-dur-2) var(--yixian-ease-out);
}

.yixian-auth-tab-content.is-active {
  display: block;
}

@keyframes authFadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========== Form ========== */
.yixian-auth-form__body {
  display: flex;
  flex-direction: column;
  gap: var(--yixian-sp-4);
}

.yixian-auth-notice {
  padding: var(--yixian-sp-3) var(--yixian-sp-4);
  border-radius: var(--yixian-r-sm);
  font-size: var(--yixian-fs-sm);
  font-weight: 500;
  animation: authFadeIn var(--yixian-dur-1) var(--yixian-ease-soft);
}

.yixian-auth-notice--error {
  background: rgba(248,113,113,.1);
  color: var(--yixian-danger);
  border: 1px solid rgba(248,113,113,.25);
}

.yixian-auth-notice--success {
  background: rgba(52,211,153,.1);
  color: var(--yixian-success);
  border: 1px solid rgba(52,211,153,.25);
}

.yixian-auth-notice--info {
  background: rgba(96,165,250,.1);
  color: var(--yixian-link);
  border: 1px solid rgba(96,165,250,.25);
}

/* ========== Field ========== */
.yixian-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.yixian-field__label {
  display: flex;
  align-items: center;
  gap: var(--yixian-sp-2);
  font-size: var(--yixian-fs-sm);
  font-weight: 600;
  color: var(--yixian-text);
}

.yixian-field__label svg {
  color: var(--yixian-primary-2);
  flex-shrink: 0;
}

.yixian-field__wrap {
  position: relative;
}

.yixian-field__input {
  width: 100%;
  height: 46px;
  padding: 0 14px;
  border: 1.5px solid var(--yixian-border);
  border-radius: var(--yixian-r-md);
  background: var(--yixian-bg-soft);
  color: var(--yixian-text);
  font-family: var(--yixian-font-sans);
  font-size: var(--yixian-fs-md);
  transition: border-color var(--yixian-dur-2), box-shadow var(--yixian-dur-2), background var(--yixian-dur-2);
}

.yixian-field__input::placeholder {
  color: var(--yixian-text-mute);
}

.yixian-field__input:focus {
  outline: none;
  border-color: var(--yixian-primary-2);
  box-shadow: 0 0 0 3px var(--yixian-primary-soft);
  background: var(--yixian-bg-card);
}

.yixian-field__input.is-valid {
  border-color: var(--yixian-success);
  box-shadow: 0 0 0 3px rgba(52,211,153,.12);
  padding-right: 40px;
}

.yixian-field__input.is-invalid {
  border-color: var(--yixian-danger);
  box-shadow: 0 0 0 3px rgba(248,113,113,.1);
}

.yixian-field__status {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  display: none;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
}

.yixian-field__input.is-valid + .yixian-field__status {
  display: flex;
  color: var(--yixian-success);
}

.yixian-field__input.is-valid + .yixian-field__status::after {
  content: "";
  display: block;
  width: 18px;
  height: 18px;
  background: currentColor;
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
  -webkit-mask-size: contain;
  mask-size: contain;
  -webkit-mask-position: center;
  mask-position: center;
}

.yixian-field__error {
  display: none;
  font-size: var(--yixian-fs-xs);
  color: var(--yixian-danger);
  line-height: 1.4;
  padding-left: 2px;
}

.yixian-field__error.is-visible {
  display: block;
  animation: authFadeIn var(--yixian-dur-1) var(--yixian-ease-soft);
}

/* ========== Password toggle ========== */
.yixian-field__toggle-pwd {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  color: var(--yixian-text-mute);
  cursor: pointer;
  transition: all var(--yixian-dur-1);
  z-index: 1;
}

.yixian-field__toggle-pwd:hover {
  color: var(--yixian-primary-2);
  background: var(--yixian-primary-soft);
}

.yixian-field__input.is-valid ~ .yixian-field__toggle-pwd {
  right: 36px;
}

/* ========== Password Strength ========== */
.yixian-auth-pwd-strength {
  display: none;
  align-items: center;
  gap: var(--yixian-sp-2);
  margin-top: 2px;
}

.yixian-auth-pwd-strength.is-visible {
  display: flex;
}

.yixian-auth-pwd-strength__bar {
  flex: 1;
  height: 4px;
  border-radius: 2px;
  background: var(--yixian-border);
  overflow: hidden;
  position: relative;
}

.yixian-auth-pwd-strength__bar::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  border-radius: 2px;
  transition: width var(--yixian-dur-2), background var(--yixian-dur-2);
}

.yixian-auth-pwd-strength[data-level="1"] .yixian-auth-pwd-strength__bar::after {
  width: 25%;
  background: var(--yixian-danger);
}

.yixian-auth-pwd-strength[data-level="2"] .yixian-auth-pwd-strength__bar::after {
  width: 50%;
  background: var(--yixian-warn);
}

.yixian-auth-pwd-strength[data-level="3"] .yixian-auth-pwd-strength__bar::after {
  width: 75%;
  background: #60a5fa;
}

.yixian-auth-pwd-strength[data-level="4"] .yixian-auth-pwd-strength__bar::after {
  width: 100%;
  background: var(--yixian-success);
}

.yixian-auth-pwd-strength__text {
  font-size: var(--yixian-fs-xs);
  font-weight: 500;
  white-space: nowrap;
}

.yixian-auth-pwd-strength[data-level="1"] .yixian-auth-pwd-strength__text { color: var(--yixian-danger); }
.yixian-auth-pwd-strength[data-level="2"] .yixian-auth-pwd-strength__text { color: var(--yixian-warn); }
.yixian-auth-pwd-strength[data-level="3"] .yixian-auth-pwd-strength__text { color: #60a5fa; }
.yixian-auth-pwd-strength[data-level="4"] .yixian-auth-pwd-strength__text { color: var(--yixian-success); }

/* ========== Options ========== */
.yixian-auth-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.yixian-auth-checkbox {
  display: flex;
  align-items: center;
  gap: var(--yixian-sp-2);
  font-size: var(--yixian-fs-sm);
  color: var(--yixian-text-soft);
  cursor: pointer;
  user-select: none;
}

.yixian-auth-checkbox input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.yixian-auth-checkbox__mark {
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--yixian-border);
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--yixian-dur-1);
  flex-shrink: 0;
}

.yixian-auth-checkbox input:checked + .yixian-auth-checkbox__mark {
  background: var(--yixian-primary-grad);
  border-color: transparent;
}

.yixian-auth-checkbox input:checked + .yixian-auth-checkbox__mark::after {
  content: "";
  display: block;
  width: 10px;
  height: 10px;
  background: #fff;
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
  -webkit-mask-size: contain;
  mask-size: contain;
}

.yixian-auth-checkbox input:focus-visible + .yixian-auth-checkbox__mark {
  box-shadow: 0 0 0 3px var(--yixian-primary-soft);
}

.yixian-auth-link {
  font-size: var(--yixian-fs-sm);
  color: var(--yixian-link);
  text-decoration: none;
  transition: color var(--yixian-dur-1);
}

.yixian-auth-link:hover {
  color: var(--yixian-primary-2);
  text-decoration: underline;
}

/* ========== Button Spinner ========== */
.yixian-btn__spinner svg {
  animation: authSpin .8s linear infinite;
}

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

/* ========== Divider ========== */
.yixian-auth-divider {
  display: flex;
  align-items: center;
  gap: var(--yixian-sp-3);
  margin: var(--yixian-sp-5) 0;
}

.yixian-auth-divider::before,
.yixian-auth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--yixian-border);
}

.yixian-auth-divider span {
  font-size: var(--yixian-fs-xs);
  color: var(--yixian-text-mute);
  white-space: nowrap;
  font-weight: 500;
}

/* ========== Social Buttons ========== */
.yixian-auth-social {
  display: flex;
  gap: var(--yixian-sp-3);
  justify-content: center;
}

.yixian-auth-social__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--yixian-bg-soft);
  color: var(--yixian-text-soft);
  cursor: pointer;
  transition: all var(--yixian-dur-2) var(--yixian-ease-spring);
  border: 1.5px solid var(--yixian-border);
}

.yixian-auth-social__btn:hover {
  transform: translateY(-3px);
  border-color: var(--social-color, var(--yixian-primary-2));
  color: var(--social-color, var(--yixian-primary-2));
  box-shadow: 0 8px 20px rgba(0,0,0,.08);
}

.yixian-auth-social__btn:active {
  transform: scale(.95);
}

/* ========== Footer Text ========== */
.yixian-auth-footer-text {
  text-align: center;
  font-size: var(--yixian-fs-xs);
  color: var(--yixian-text-mute);
  margin-top: var(--yixian-sp-6);
  margin-bottom: 0;
}

.yixian-auth-footer-text a {
  color: var(--yixian-link);
  transition: color var(--yixian-dur-1);
}

.yixian-auth-footer-text a:hover {
  color: var(--yixian-primary-2);
  text-decoration: underline;
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .yixian-auth-page {
    padding: var(--yixian-sp-5) var(--yixian-sp-4);
    align-items: flex-start;
  }

  .yixian-auth-panel {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .yixian-auth-brand {
    padding: var(--yixian-sp-8) var(--yixian-sp-5) var(--yixian-sp-10);
  }

  .yixian-auth-brand__features {
    display: none;
  }

  .yixian-auth-brand__logo {
    width: 56px;
    height: 56px;
    margin-bottom: var(--yixian-sp-3);
  }

  .yixian-auth-brand__logo img {
    width: 36px;
    height: 36px;
  }

  .yixian-auth-brand__title {
    font-size: var(--yixian-fs-2xl);
    margin-bottom: var(--yixian-sp-1);
  }

  .yixian-auth-brand__desc {
    font-size: var(--yixian-fs-sm);
    margin-bottom: 0;
  }

  .yixian-auth-form {
    padding: var(--yixian-sp-6) var(--yixian-sp-5) var(--yixian-sp-8);
  }
}

@media (max-width: 480px) {
  .yixian-auth-brand {
    padding: var(--yixian-sp-6) var(--yixian-sp-4);
  }

  .yixian-auth-form {
    padding: var(--yixian-sp-5) var(--yixian-sp-4) var(--yixian-sp-6);
  }

  .yixian-auth-tab {
    font-size: var(--yixian-fs-sm);
    padding: 8px 0;
  }

  .yixian-field__input {
    height: 44px;
    font-size: var(--yixian-fs-sm);
  }
}

/* ========== Dark Theme Overrides ========== */
[data-theme="dark"] .yixian-auth-panel {
  box-shadow: var(--yixian-shadow-glow);
}

[data-theme="dark"] .yixian-auth-tab.is-active {
  background: var(--yixian-bg-card);
}

[data-theme="dark"] .yixian-auth-social__btn:hover {
  box-shadow: 0 8px 20px rgba(0,0,0,.3);
}