/* =====================================================================
 * admin-login.css — 管理员登录样式 v3
 * 方案 E: 极简专业 + 安全感知 + 品牌沉浸 + 引导转化
 * ===================================================================== */

@keyframes adminWarningSlide {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ===== 登录按钮（在 yardon-nav.js 中内联渲染，此处兜底） ===== */
.admin-login-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--ink-secondary, #666);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.admin-login-btn:hover {
  background: var(--color-bg-glass, rgba(255,255,255,0.06));
  color: var(--ink, #333);
}

.admin-login-btn.logged-in {
  color: var(--color-primary, #7BA7A6);
}

/* ===== 用户信息区域 ===== */
.yardon-nav-user {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px 4px 16px;
  background: var(--color-bg-glass, rgba(255,255,255,0.06));
  border-radius: 20px;
  border: 1px solid var(--divider, #e0e0e0);
}

.admin-user-name {
  font-family: var(--font-mono, monospace);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-primary, #7BA7A6);
}

.admin-logout-btn {
  width: 28px !important;
  height: 28px !important;
  padding: 0 !important;
  background: transparent !important;
  border: none !important;
  border-radius: 50% !important;
  color: var(--ink-muted, #999) !important;
  cursor: pointer;
  transition: background 0.2s, color 0.2s !important;
}

.admin-logout-btn:hover {
  background: rgba(231, 76, 60, 0.1) !important;
  color: #e74c3c !important;
}

/* ===== 登录弹窗遮罩 — 方案 D1 品牌沉浸 ===== */
.login-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0,0,0,0.7), rgba(0,0,0,0.4));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s;
}

.login-modal-overlay.active {
  display: flex;
  opacity: 1;
}

/* ===== 登录弹窗 — 方案 D2/D3/D4 品牌沉浸 ===== */
.login-modal {
  position: relative;
  background: var(--paper, #fff);
  border-radius: 20px;
  padding: 36px 32px 28px;
  width: 90%;
  max-width: 380px;
  box-shadow:
    0 0 0 1px var(--divider, rgba(0,0,0,0.06)),
    0 25px 80px rgba(0,0,0,0.4);
  transform: translateY(20px);
  transition: transform 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

/* ===== 弹窗头部 — 方案 A1/A2 标题升级 ===== */
.login-modal-header {
  text-align: center;
  margin-bottom: 24px;
}

.login-modal-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 14px;
  background: linear-gradient(135deg, #7BA7A6, #6a9695);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 12px rgba(123, 167, 166, 0.35);
}

.login-modal-title {
  font-family: var(--font-display, sans-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--ink, #333);
  margin: 0;
}

.login-modal-subtitle {
  font-size: 0.85rem;
  color: var(--ink-muted, #999);
  margin-top: 4px;
}

/* ===== 安全提示条 — 方案 B4 ===== */
.login-security-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 12px;
  margin-bottom: 18px;
  background: rgba(123, 167, 166, 0.08);
  border-radius: 8px;
  font-size: 0.78rem;
  color: var(--color-primary, #7BA7A6);
  border: 1px solid rgba(123, 167, 166, 0.15);
}

.login-security-banner svg {
  flex-shrink: 0;
}

/* ===== 表单 ===== */
.login-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.login-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
}

.login-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--ink-secondary, #666);
}

/* ===== 输入框 — 方案 D5 聚焦发光 ===== */
.login-input {
  width: 100%;
  padding: 12px 40px 12px 16px;
  font-family: var(--font-body, sans-serif);
  font-size: 0.95rem;
  color: var(--ink, #333);
  background: var(--color-bg-glass, rgba(255,255,255,0.06));
  border: 1.5px solid var(--divider, #e0e0e0);
  border-radius: 10px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-sizing: border-box;
}

.login-input:focus {
  border-color: var(--color-primary, #7BA7A6);
  box-shadow: 0 0 0 3px rgba(123, 167, 166, 0.2);
}

.login-input::placeholder {
  color: var(--ink-muted, #999);
}

/* ===== 密码切换按钮 — 方案 B1 ===== */
.password-toggle {
  position: absolute;
  right: 1px;
  top: 50%;
  transform: translateY(-50%);
  margin-top: 10px; /* 偏移 label 高度的一半 */
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: 0 10px 10px 0;
  color: var(--ink-muted, #999);
  cursor: pointer;
  transition: color 0.2s;
  z-index: 1;
}

.password-toggle:hover {
  color: var(--ink-secondary, #666);
}

.password-toggle svg.eye-off {
  display: none;
}

.password-toggle.showing .eye-on {
  display: none;
}

.password-toggle.showing .eye-off {
  display: inline;
}

/* ===== 错误提示 — 方案 B2 失败次数 ===== */
.login-error {
  display: none;
  padding: 10px 14px;
  background: rgba(231, 76, 60, 0.08);
  border: 1px solid rgba(231, 76, 60, 0.25);
  border-radius: 8px;
  font-size: 0.85rem;
  color: #e74c3c;
  text-align: center;
  line-height: 1.4;
}

.login-error.visible {
  display: block;
  animation: loginShake 0.4s ease;
}

.login-error.locked {
  background: rgba(243, 156, 18, 0.08);
  border-color: rgba(243, 156, 18, 0.25);
  color: #e67e22;
}

@keyframes loginShake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

/* ===== 登录按钮 — 方案 D6 渐变 + 方案 A8 状态 ===== */
.login-submit {
  padding: 12px 24px;
  font-family: var(--font-body, sans-serif);
  font-size: 0.95rem;
  font-weight: 500;
  color: #fff;
  background: linear-gradient(135deg, #7BA7A6, #6a9695);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s, opacity 0.2s, box-shadow 0.2s;
  box-shadow: 0 2px 8px rgba(123, 167, 166, 0.25);
}

.login-submit:hover {
  background: linear-gradient(135deg, #6a9695, #5a8685);
  box-shadow: 0 4px 14px rgba(123, 167, 166, 0.35);
}

.login-submit:active {
  transform: scale(0.97);
}

.login-submit:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  box-shadow: none;
}

/* ===== 关闭按钮 — 方案 A6 旋转动画 ===== */
.login-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: 50%;
  color: var(--ink-muted, #999);
  cursor: pointer;
  transition: color 0.15s, transform 0.2s;
}

.login-close svg {
  transition: transform 0.25s ease;
}

.login-close:hover {
  color: var(--ink, #333);
  background: var(--divider, rgba(0,0,0,0.06));
}

.login-close:hover svg {
  transform: rotate(90deg);
}

/* ===== 底部签名线 — 方案 A10 ===== */
.login-modal-footer {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid var(--divider, rgba(0,0,0,0.06));
  text-align: center;
  font-size: 0.75rem;
  color: var(--ink-muted, #999);
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
}

.login-visitor-link {
  font-size: 0.8rem;
  color: var(--color-primary, #7BA7A6);
  cursor: pointer;
  background: none;
  border: none;
  text-decoration: none;
  transition: color 0.2s;
}

.login-visitor-link:hover {
  color: var(--color-primary-dark, #6a9695);
  text-decoration: underline;
}

/* ===== 暗色模式 — 方案 D8 ===== */
[data-theme="dark"] .login-modal-overlay {
  background: linear-gradient(135deg, rgba(0,0,0,0.85), rgba(0,0,0,0.6));
}

[data-theme="dark"] .login-modal {
  background: var(--color-bg-card, #1e1e2e);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.06),
    0 25px 80px rgba(0,0,0,0.6);
}

[data-theme="dark"] .login-input {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.1);
  color: var(--ink, #eee);
}

[data-theme="dark"] .login-input:focus {
  border-color: var(--color-primary, #7BA7A6);
  box-shadow: 0 0 0 3px rgba(123, 167, 166, 0.25);
}

[data-theme="dark"] .login-error {
  background: rgba(231, 76, 60, 0.12);
}

[data-theme="dark"] .login-security-banner {
  background: rgba(123, 167, 166, 0.1);
  border-color: rgba(123, 167, 166, 0.2);
}

[data-theme="dark"] .password-toggle {
  color: rgba(255,255,255,0.35);
}

[data-theme="dark"] .password-toggle:hover {
  color: rgba(255,255,255,0.7);
}

[data-theme="dark"] .login-close:hover {
  background: rgba(255,255,255,0.08);
  color: var(--ink, #eee);
}

/* ===== 移动端 — 方案 D9 ===== */
@media (max-width: 480px) {
  .login-modal {
    padding: 28px 24px 24px;
    max-width: 100%;
    margin: 0 16px;
  }

  .login-modal-title {
    font-size: 1.1rem;
  }

  .login-security-banner {
    font-size: 0.73rem;
    padding: 6px 10px;
  }
}

/* ===== 动画降级 — 方案 D7 ===== */
@media (prefers-reduced-motion: reduce) {
  .login-modal-overlay,
  .login-modal,
  .login-close svg {
    transition: none;
  }
  .login-modal-overlay.active .login-modal {
    transform: none;
  }
}