/* Listing authentication surface. Loaded after the global skin and before workspace polish. */

/* Auth Modal —— 水平+垂直双向居中 */
.auth-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100vw;
  height: 100vh;
  min-width: 100vw;
  min-height: 100vh;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  place-items: center;
  place-content: center;
  z-index: 10000;
  padding: 24px;
  box-sizing: border-box;
  margin: 0;
}

/* `.auth-modal` establishes a flex layout, which otherwise overrides the
   browser's default hidden presentation. The auth controller owns visibility
   solely through the native `hidden` attribute. */
.auth-modal[hidden] {
  display: none;
}

.auth-card {
  margin: auto;
  background: var(--bg-card, var(--surface, #ffffff));
  border: 1px solid var(--border, rgba(0, 0, 0, 0.08));
  border-radius: var(--radius-xl, 16px);
  padding: 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] .auth-card {
  background: #1a2030;
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.60), 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.auth-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}

.auth-logo-img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm, 8px);
  object-fit: contain;
}

.auth-logo-text {
  font-family: var(--font-heading, -apple-system, sans-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--fg, var(--text-primary, #1a2030));
}

[data-theme="dark"] .auth-logo-text {
  color: #e8ecf3;
}

.auth-subtitle {
  font-size: 13px;
  color: var(--muted, #5a6378);
  margin-bottom: 28px;
}

.auth-tabs {
  display: flex;
  gap: 0;
  background: #ececf0;
  border: 1px solid rgba(0, 0, 0, 0.04);
  border-radius: var(--radius-md, 10px);
  padding: 4px;
  margin-bottom: 20px;
}

[data-theme="dark"] .auth-tabs {
  background: #0f141f;
  border-color: rgba(255, 255, 255, 0.04);
}

.auth-tab {
  flex: 1;
  padding: 10px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm, 8px);
  font-family: inherit;
  font-size: 14px;
  color: var(--meta, #8b94a8);
  cursor: pointer;
  transition: all 0.2s;
}

.auth-tab.active {
  background: #ffffff;
  color: var(--fg, #1a2030);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  font-weight: 600;
}

[data-theme="dark"] .auth-tab.active {
  background: #232a3d;
  color: #e8ecf3;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06) inset;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* The inactive tab uses native `hidden`; it must override the flex layout. */
.auth-form[hidden] {
  display: none;
}

.auth-form-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: -8px;
}

.auth-link-btn {
  background: none;
  border: none;
  padding: 0;
  font-size: 13px;
  color: var(--muted, #5a6378);
  cursor: pointer;
  text-decoration: none;
}

.auth-link-btn:hover {
  text-decoration: underline;
  color: var(--text, #1d1d1f);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 13px;
  color: var(--muted, #5a6378);
  font-weight: 500;
}

.form-group input,
.form-group select {
  background: #f5f5f7;
  border: 1px solid rgba(0, 0, 0, 0.10);
  border-radius: var(--radius-md, 10px);
  padding: 12px 14px;
  font-size: 14px;
  font-family: inherit;
  color: var(--fg, #1a2030);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent, #4d9aff);
  box-shadow: 0 0 0 3px rgba(77, 154, 255, 0.14);
}

/* The shared focus rule is overridden by the more specific form selector above.
   Restore a visible keyboard focus indicator for the login and registration form. */
.form-group input:focus-visible,
.form-group select:focus-visible {
  outline: 3px solid var(--focus-outline, #005fcc);
  outline-offset: 2px;
}

[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group select {
  background: #0f141f;
  border-color: rgba(255, 255, 255, 0.10);
  color: #e8ecf3;
}

.form-group input::placeholder {
  color: #aeaeb2;
}

[data-theme="dark"] .form-group input::placeholder {
  color: #5a6378;
}

.auth-error {
  background: rgba(220, 38, 38, 0.08);
  border: 1px solid rgba(220, 38, 38, 0.20);
  color: #dc2626;
  border-radius: var(--radius-md, 10px);
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 16px;
}

[data-theme="dark"] .auth-error {
  background: rgba(220, 38, 38, 0.14);
  border-color: rgba(239, 68, 68, 0.36);
  color: #ff7a7a;
}

html[data-design-skin="apple"] .auth-submit {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  height: auto;
  background: var(--accent, #4d9aff);
  color: #ffffff;
  border: none;
  border-radius: 8px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  cursor: pointer;
  transition: background 0.25s ease, transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.25s ease, filter 0.25s ease;
  margin-top: 8px;
  box-shadow: 0 2px 8px rgba(77, 154, 255, 0.28);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  background-image: none;
}

html[data-design-skin="apple"] .auth-submit:hover:not(:disabled) {
  background: var(--accent-hover, #3a8eff);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(77, 154, 255, 0.40);
  filter: brightness(1.06);
}

html[data-design-skin="apple"] .auth-submit:active:not(:disabled) {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 1px 4px rgba(77, 154, 255, 0.24);
}

html[data-design-skin="apple"] .auth-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* btn-text / btn-spinner 也会匹配全局皮肤的按钮选择器，需要在登录域内重置。 */
.auth-submit .btn-text,
.auth-submit .btn-spinner {
  display: inline;
  width: auto;
  height: auto;
  padding: 0;
  margin: 0;
  border: none;
  background: transparent;
  background-image: none;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  font: inherit;
  color: inherit;
  letter-spacing: normal;
  flex: none;
}

.auth-submit .btn-spinner {
  display: none;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: btn-spin 0.6s linear infinite;
  box-shadow: none;
}

.auth-submit.is-loading .btn-spinner {
  display: inline-block;
}

/* ── Interview demo one-click login ── */
.demo-login-panel {
  margin-top: 4px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.demo-login-panel[hidden] {
  display: none !important;
}

.demo-login-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
  color: var(--muted, #5a6378);
  font-size: 12px;
}

.demo-login-divider::before,
.demo-login-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: rgba(0, 0, 0, 0.10);
}

[data-theme="dark"] .demo-login-divider::before,
[data-theme="dark"] .demo-login-divider::after {
  background: rgba(255, 255, 255, 0.12);
}

.demo-login-divider span {
  flex: 0 0 auto;
  letter-spacing: 0.04em;
}

html[data-design-skin="apple"] .auth-submit--demo {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  box-shadow: 0 2px 8px rgba(217, 119, 6, 0.28);
  margin-top: 0;
}

html[data-design-skin="apple"] .auth-submit--demo:hover:not(:disabled) {
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  box-shadow: 0 6px 16px rgba(217, 119, 6, 0.36);
}

.demo-login-hint {
  margin: 0;
  text-align: center;
  font-size: 12px;
  color: var(--muted, #5a6378);
  line-height: 1.4;
}

.auth-federated {
  display: grid;
  gap: 10px;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--meta, #8b94a8);
  font-size: 12px;
}

.auth-divider::before,
.auth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border, rgba(0, 0, 0, 0.10));
}

.auth-feishu-button,
.auth-secondary-action {
  box-sizing: border-box;
  width: 100%;
  min-height: 42px;
  border: 1px solid rgba(51, 112, 255, 0.30);
  border-radius: 8px;
  background: rgba(51, 112, 255, 0.08);
  color: #245bdb;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}

.auth-feishu-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.auth-feishu-button:hover,
.auth-secondary-action:hover {
  background: rgba(51, 112, 255, 0.14);
}

.auth-feishu-mark {
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: #3370ff;
  color: #ffffff;
  font-size: 12px;
}

.auth-secondary-action {
  padding: 9px 12px;
  border-color: var(--border, rgba(0, 0, 0, 0.12));
  background: transparent;
  color: var(--fg, #1a2030);
}

.auth-login-hint {
  margin: 0;
  color: var(--muted, #5a6378);
  font-size: 12px;
  line-height: 1.5;
  text-align: center;
}

[data-theme="dark"] .auth-feishu-button {
  border-color: rgba(93, 141, 255, 0.45);
  background: rgba(51, 112, 255, 0.16);
  color: #a9c1ff;
}

[data-theme="dark"] .auth-secondary-action {
  border-color: rgba(255, 255, 255, 0.14);
  color: #e8ecf3;
}

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

/* 确保 auth-modal 在极光层之上。 */
.auth-modal { z-index: 10; }

/* 登录页右上角主题切换按钮由固定定位保持独立于认证面板。 */
.auth-theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  left: auto;
  bottom: auto;
  z-index: 10001;
  padding: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid rgba(255, 255, 255, 0.18);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, transform 0.2s;
}

.auth-theme-toggle:hover {
  background: rgba(255, 255, 255, 0.22);
  transform: scale(1.08);
}

.auth-theme-toggle:active {
  transform: scale(0.95);
}

[data-theme="dark"] .auth-theme-toggle {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
}

[data-theme="dark"] .auth-theme-toggle:hover {
  background: rgba(255, 255, 255, 0.16);
}