/* 密码显隐图标 */
.password-wrapper {
    position: relative;
}
.password-toggle-icon {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: var(--mdui-color-on-surface-variant);
    z-index: 10;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.2s;
}
.password-toggle-icon:hover {
    background-color: rgba(0, 0, 0, 0.04);
}

/* 记住密码 */
.remember-container {
    position: absolute;
    right: 0;
    bottom: -44px;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    padding: 4px 0;
    user-select: none;
}
.remember-checkbox {
    transform: scale(0.85);
}
.remember-text {
    font-size: 13px;
    color: var(--mdui-color-on-surface-variant);
    white-space: nowrap;
}

/* 登录按钮 */
.form-btn {
    width: 100%;
    margin-top: 20px;
    height: 48px;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: var(--transition-normal);
}
.form-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--mdui-elevation-level2);
}

/* 链接 */
.action-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: opacity 0.2s;
    cursor: pointer;
}
.action-link:hover {
    opacity: 0.8;
    text-decoration: underline;
}

/* 消息提示 */
.message-box {
    padding: 12px;
    border-radius: 12px;
    margin-top: 24px;
    display: none;
    align-items: center;
    animation: fadeIn 0.3s ease;
    transition: opacity 0.3s ease;
}
.message-box.error {
    background-color: #fef2f2;
    color: #dc2626;
    border-left: 4px solid #dc2626;
}
.message-box.success {
    background-color: #f0fdf4;
    color: #16a34a;
    border-left: 4px solid #16a34a;
}
.message-box.info {
    background-color: #f0f9ff;
    color: #0284c7;
    border-left: 4px solid #0284c7;
}

/* 动画 */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
/* loading旋转 */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 10px;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}