/* ==========================================================================
   登录 / 认证页样式 —— 对齐 zaai.world auth-page + glass-card 视觉
   ========================================================================== */

.auth-page {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  background: var(--bg-primary);
}

/* 背景：深空渐变 + 点阵 */
.auth-bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(59, 130, 246, 0.14), transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 100%, rgba(139, 92, 246, 0.08), transparent 60%),
    var(--bg-primary);
  z-index: 0;
}
.auth-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.5;
}

/* 顶部弥散光 */
.auth-glow {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.15), rgba(139, 92, 246, 0.1) 40%, transparent 70%);
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
  z-index: 0;
}

/* ------------------------------- 顶栏 ---------------------------------- */
.auth-topbar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  max-width: 1360px;
  margin: 0 auto;
}
.auth-topbar__back {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}
.auth-topbar__back:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.04);
}

/* ------------------------------- 主体 ---------------------------------- */
.auth-main {
  position: relative;
  z-index: 1;
  min-height: calc(100vh - 76px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 1.25rem 3rem;
}

.auth-wrap {
  display: grid;
  grid-template-columns: 1fr 440px;
  gap: 5rem;
  align-items: center;
  width: 100%;
  max-width: 1180px;
}

/* 左侧品牌介绍 */
.auth-intro { max-width: 480px; }

.auth-intro__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.875rem;
  border-radius: 99px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  color: #93c5fd;
  font-size: 0.75rem;
  font-weight: 500;
  margin-bottom: 1.75rem;
}
.auth-intro__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #3b82f6;
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.9);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.auth-intro__title {
  font-size: 2.75rem;
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 1.25rem;
}
.auth-intro__desc {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.auth-intro__points { display: flex; flex-direction: column; gap: 0.875rem; }
.auth-intro__points li {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.875rem;
  color: #cbd5e1;
}
.auth-intro__points svg {
  width: 18px;
  height: 18px;
  flex: none;
  color: #10b981;
}

/* ------------------------------ 登录卡片 -------------------------------- */
.auth-card-wrap {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.auth-card {
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-card);
}

.auth-card__head { margin-bottom: 1.75rem; }
.auth-card__title {
  font-size: 1.375rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.375rem;
  letter-spacing: -0.01em;
}
.auth-card__sub { font-size: 0.8125rem; color: var(--text-muted); }

.auth-form .field:last-of-type { margin-bottom: 1rem; }

/* 输入框带图标 */
.input-icon { position: relative; }
.input-icon__svg {
  position: absolute;
  left: 0.9375rem;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-faint);
  pointer-events: none;
  transition: color 0.2s;
}
.input--icon { padding-left: 2.75rem; }
.input--pw { padding-right: 2.75rem; }
.input-icon:focus-within .input-icon__svg { color: var(--blue); }

.input-icon__toggle {
  position: absolute;
  right: 0.625rem;
  top: 50%;
  transform: translateY(-50%);
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-faint);
  transition: all 0.2s;
}
.input-icon__toggle:hover { color: var(--text-secondary); background: rgba(255, 255, 255, 0.05); }
.input-icon__toggle.is-on { color: var(--blue); }
.input-icon__toggle svg { width: 18px; height: 18px; }

/* 记住我 / 忘记密码 */
.auth-form__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.checkbox {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}
.checkbox input { position: absolute; opacity: 0; width: 0; height: 0; }
.checkbox__box {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.03);
  position: relative;
  transition: all 0.18s;
  flex: none;
}
.checkbox input:checked + .checkbox__box {
  background: var(--blue);
  border-color: var(--blue);
}
.checkbox input:checked + .checkbox__box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 2px;
  width: 4px;
  height: 8px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.checkbox input:focus-visible + .checkbox__box { outline: 2px solid var(--blue); outline-offset: 2px; }

.link-btn {
  font-size: 0.8125rem;
  color: var(--text-muted);
  transition: color 0.2s;
}
.link-btn:hover { color: #93c5fd; }

.link { color: #93c5fd; transition: color 0.2s; }
.link:hover { color: #bfdbfe; text-decoration: underline; }

.auth-alert { margin-bottom: 1.25rem; }

/* 底部 */
.auth-card__foot {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-color);
  text-align: center;
}
.auth-card__foot p { font-size: 0.6875rem; color: var(--text-faint); line-height: 1.7; }

.auth-card__copyright {
  text-align: center;
  font-size: 0.6875rem;
  color: var(--text-faint);
  line-height: 1.7;
}

/* ---------------------------- 演示账号 --------------------------------- */
.demo-accounts {
  margin-top: 1rem;
  border-top: 1px dashed rgba(255, 255, 255, 0.07);
  padding-top: 0.875rem;
}
.demo-accounts summary {
  font-size: 0.75rem;
  color: var(--text-faint);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  user-select: none;
  transition: color 0.2s;
}
.demo-accounts summary::-webkit-details-marker { display: none; }
.demo-accounts summary::before {
  content: "▸";
  font-size: 0.625rem;
  transition: transform 0.2s;
}
.demo-accounts[open] summary::before { transform: rotate(90deg); }
.demo-accounts summary:hover { color: var(--text-secondary); }

.demo-accounts__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  margin-top: 0.75rem;
}
.demo-acc {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  text-align: left;
  transition: all 0.18s;
}
.demo-acc:hover {
  border-color: rgba(59, 130, 246, 0.35);
  background: rgba(59, 130, 246, 0.07);
}
.demo-acc__role { font-size: 0.75rem; color: #cbd5e1; font-weight: 500; }
.demo-acc__id { font-size: 0.6875rem; color: var(--text-faint); font-family: var(--mono); }

/* ----------------------------- Toast ----------------------------------- */
.toast-host {
  position: fixed;
  top: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
  pointer-events: none;
}
.toast {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  border-radius: var(--radius);
  font-size: 0.8125rem;
  background: rgba(13, 17, 28, 0.96);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(12px);
  opacity: 0;
  transform: translateY(-8px) scale(0.97);
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  max-width: 90vw;
}
.toast.is-in { opacity: 1; transform: translateY(0) scale(1); }
.toast__icon { width: 16px; height: 16px; flex: none; }
.toast--success .toast__icon { color: #10b981; }
.toast--error .toast__icon { color: #f43f5e; }
.toast--info .toast__icon { color: #3b82f6; }
.toast--warn .toast__icon { color: #f59e0b; }

/* ------------------------------ Modal ---------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  opacity: 0;
  transition: opacity 0.2s;
}
.modal-overlay.is-in { opacity: 1; }
.modal {
  width: 100%;
  background: #0d111c;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6);
  transform: translateY(10px) scale(0.98);
  transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  max-height: 88vh;
  display: flex;
  flex-direction: column;
}
.modal-overlay.is-in .modal { transform: translateY(0) scale(1); }
.modal__head { padding: 1.25rem 1.5rem 0.75rem; }
.modal__title { font-size: 1.0625rem; font-weight: 600; color: #fff; }
.modal__body { padding: 0 1.5rem 1rem; overflow-y: auto; }
.modal__foot {
  padding: 1rem 1.5rem 1.25rem;
  display: flex;
  justify-content: flex-end;
  gap: 0.625rem;
  border-top: 1px solid var(--border-color);
}

.btn--danger-solid { background: #e11d48; color: #fff; }
.btn--danger-solid:hover:not(:disabled) { background: #f43f5e; }
/* 危险操作的禁用态必须一眼可辨：仅靠全局 opacity:.5 时红底仍显眼，
   容易被误认为可点击 */
.btn--danger-solid:disabled,
.btn--danger-solid.is-locked {
  background: rgba(255, 255, 255, 0.07);
  color: var(--text-faint);
  border: 1px solid var(--border-color);
  box-shadow: none;
  cursor: not-allowed;
  opacity: 1;
}

/* 密码强度提示 */
.pw-meter { display: flex; flex-wrap: wrap; gap: 0.625rem; margin-top: 0.5rem; }
.pw-meter__item {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.6875rem;
  color: var(--text-faint);
}
.pw-meter__item.is-ok { color: #34d399; }
.pw-meter__dot { width: 12px; height: 12px; }

/* ----------------------------- 响应式 ---------------------------------- */
@media (max-width: 1024px) {
  .auth-wrap { grid-template-columns: 1fr; gap: 2.5rem; justify-items: center; }
  .auth-intro { display: none; }
  .auth-card-wrap { width: 100%; max-width: 440px; }
}

@media (max-width: 640px) {
  .auth-topbar { padding: 1rem 1.25rem; }
  .auth-main { padding: 0.5rem 1rem 2rem; align-items: flex-start; }
  .auth-card { padding: 1.5rem; border-radius: var(--radius-lg); }
  .auth-card__title { font-size: 1.25rem; }
  .auth-intro__title { font-size: 2rem; }
  .demo-accounts__grid { grid-template-columns: 1fr; }
  .toast-host { top: 0.75rem; }
}