/* ============================================
   Viola Wiki 管理后台 - 登录页样式
   ============================================ */

.login-body {
  background: linear-gradient(135deg, #ff4d8d 0%, #a855f7 50%, #6366f1 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-card {
  background-color: var(--admin-surface);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
  width: 100%;
  max-width: 400px;
  padding: 40px 32px;
  animation: login-in 0.4s ease;
}

@keyframes login-in {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.login-header {
  text-align: center;
  margin-bottom: 28px;
}

.login-logo {
  width: 160px;
  height: auto;
  margin-bottom: 16px;
}

.login-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--admin-text);
  margin-bottom: 4px;
}

.login-subtitle {
  font-size: 13px;
  color: var(--admin-text-muted);
}

.login-form .form-group {
  margin-bottom: 18px;
}

.login-form .form-label {
  font-size: 13px;
}

.login-form .form-input {
  padding: 11px 14px;
  font-size: 14px;
}

.login-actions {
  margin-top: 24px;
}

.login-btn {
  width: 100%;
  padding: 12px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 8px;
  background-color: var(--admin-primary);
  color: #fff;
  transition: all 0.2s;
}

.login-btn:hover {
  background-color: var(--admin-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(217, 70, 239, 0.35);
}

.login-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.login-error {
  background-color: rgba(225, 112, 85, 0.1);
  color: var(--admin-danger);
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 13px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.login-tip {
  margin-top: 20px;
  padding: 12px 14px;
  background-color: var(--admin-bg);
  border-radius: 6px;
  font-size: 12px;
  color: var(--admin-text-muted);
  line-height: 1.6;
}

.login-tip code {
  background-color: var(--admin-surface);
  padding: 1px 6px;
  border-radius: 3px;
  color: var(--admin-primary-dark);
  font-family: "SFMono-Regular", Consolas, monospace;
}

.back-to-site {
  display: block;
  text-align: center;
  margin-top: 20px;
  font-size: 13px;
  color: var(--admin-text-muted);
}

.back-to-site:hover {
  color: var(--admin-primary);
}

/* ---------- 登录 / 注册切换 ---------- */
.auth-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  background-color: var(--admin-bg);
  padding: 4px;
  border-radius: 10px;
}

.auth-tab {
  flex: 1;
  padding: 9px 12px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 8px;
  background: transparent;
  color: var(--admin-text-muted);
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.auth-tab.active {
  background-color: var(--admin-primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(217, 70, 239, 0.3);
}

.auth-tab:hover:not(.active) {
  color: var(--admin-text);
}

.auth-form-container {
  min-height: 200px;
}

.register-tip {
  background-color: rgba(99, 102, 241, 0.08);
  border-left: 3px solid var(--admin-primary);
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 12.5px;
  color: var(--admin-text);
  line-height: 1.7;
  margin-bottom: 18px;
  word-break: break-all;
}

.register-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 20px;
}

.register-copy-btn,
.register-mail-btn {
  width: 100%;
  padding: 11px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  text-align: center;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
  display: block;
  text-decoration: none;
}

.register-copy-btn {
  background-color: var(--admin-bg);
  color: var(--admin-text);
  border: 1px solid var(--admin-border);
}

.register-copy-btn:hover {
  background-color: var(--admin-border);
}

.register-mail-btn {
  background-color: var(--admin-primary);
  color: #fff;
}

.register-mail-btn:hover {
  background-color: var(--admin-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(217, 70, 239, 0.35);
}

.login-form textarea.form-input {
  resize: vertical;
  min-height: 70px;
  font-family: inherit;
}